(function () {
	const root = document.getElementById('qortal-qapps-root');
	if (!root) {
		return;
	}

	let qapps = [];
	try {
		const parsed = JSON.parse(root.dataset.qapps || '[]');
		if (Array.isArray(parsed)) {
			qapps = parsed;
		}
	} catch (error) {
		qapps = [];
	}

	const enabled = root.dataset.qappsEnabled === '1';
	const browserEnabled = root.dataset.qappsBrowserEnabled === '1';
	const browserAddress = root.dataset.qappsBrowserAddress || '';
	const urlParams = new URLSearchParams(window.location.search);
	const debugFromQuery = urlParams.get('debug') === '1' || urlParams.get('qapps_debug') === '1';
	const debugFromStorage = window.localStorage && window.localStorage.getItem('qortal_qapps_debug') === '1';
	const debugEnabled = root.dataset.qappsDebugEnabled === '1' || debugFromQuery || debugFromStorage;
	const nodeUrl = root.dataset.qortalNodeUrl || '';
	const gatewayUrl = root.dataset.qortalGatewayUrl || '';
	const gatewayProxyTemplate = root.dataset.gatewayProxyUrl || '';
	const viewerRendererConfigured = Boolean(nodeUrl || gatewayUrl);
	const qappsRequestUrl = root.dataset.qappsRequestUrl || '';
	const qappsApproveUrl = root.dataset.qappsApproveUrl || '';
	const qappsPermissionsUrl = root.dataset.qappsPermissionsUrl || '';
	const qappsUnlockUrl = root.dataset.qappsUnlockUrl || '';
	const qappsUnlockStatusUrl = root.dataset.qappsUnlockStatusUrl || '';
	const defaultApprovalMode = (function () {
		const rawMode = String(root.dataset.qappsDefaultApprovalMode || '').trim();
		if (rawMode === 'session') {
			return 'type_minutes';
		}
		if (rawMode === 'scope') {
			return 'type_always';
		}
		if (rawMode === 'app') {
			return 'app_always';
		}
		if (rawMode === 'type_minutes' || rawMode === 'type_always' || rawMode === 'app_always') {
			return rawMode;
		}
		return 'once';
	})();
	const defaultApprovalTempMinutes = (function () {
		const parsed = Number(String(root.dataset.qappsDefaultApprovalTempMinutes || '10').trim());
		if (!Number.isFinite(parsed)) {
			return 10;
		}
		return Math.max(1, Math.min(Math.floor(parsed), 1440));
	})();
	const defaultApprovalUnlock10Min = root.dataset.qappsDefaultApprovalUnlock10Min === '1';
	const defaultUnlockSession20Min = root.dataset.qappsDefaultUnlockSession20Min === '1';
	const userMappingsUrl = root.dataset.userMappingsUrl || '';
	const nextcloudPublicUrl = root.dataset.nextcloudPublicUrl || '';
	const settingsPath = root.dataset.settingsPath || '/settings/user/qortal_integration';

	const emptyCard = document.getElementById('qortal-qapps-empty');
	const browserCard = document.getElementById('qortal-qapps-browser');
	const browserAddressEl = document.getElementById('qortal-qapps-browser-address');
	const browserButton = document.getElementById('qortal-qapps-open-browser');
	const listCard = document.getElementById('qortal-qapps-list');
	const listBody = document.getElementById('qortal-qapps-body');
	const warningCard = document.getElementById('qortal-qapps-warning');
	const settingsLink = document.getElementById('qortal-qapps-settings-link');
	const viewerCard = document.getElementById('qortal-qapps-viewer');
	const viewerAddress = document.getElementById('qortal-qapps-viewer-address');
	const viewerAddressInputWrap = root.querySelector('.qortal-viewer-address-input');
	const viewerAddressInput = document.getElementById('qortal-qapps-viewer-address-input');
	const viewerAddressGo = document.getElementById('qortal-qapps-viewer-address-go');
	const viewerLoadingProgress = document.getElementById('qortal-qapps-loading-progress');
	const viewerLoadingOverlay = document.getElementById('qortal-qapps-loading-overlay');
	const viewerLoadingStatus = document.getElementById('qortal-qapps-loading-status');
	const viewerLoadingMeta = document.getElementById('qortal-qapps-loading-meta');
	const viewerLoadingProgressBar = document.getElementById('qortal-qapps-loading-progress-bar');
	const viewerFrame = document.getElementById('qortal-qapps-frame');
	const viewerFrameWrap = document.getElementById('qortal-qapps-frame-wrap');
	const viewerClose = document.getElementById('qortal-qapps-close');
	const viewerOpenExternal = document.getElementById('qortal-qapps-open-external');
	const viewerBack = document.getElementById('qortal-qapps-back');
	const viewerReload = document.getElementById('qortal-qapps-reload');
	const mobileMenuToggle = document.getElementById('qortal-qapps-mobile-menu');
	const viewerMenuToggle = document.getElementById('qortal-qapps-menu');
	const pageHeader = root.querySelector('.qortal-page-header');
	const debugCard = document.getElementById('qortal-qapps-debug');
	const debugBody = document.getElementById('qortal-qapps-debug-body');
	const debugCopy = document.getElementById('qortal-qapps-debug-copy');
	const debugClear = document.getElementById('qortal-qapps-debug-clear');
	const debugFloat = document.getElementById('qortal-qapps-debug-float');
	const debugMinimize = document.getElementById('qortal-qapps-debug-minimize');
	const approvalModal = document.getElementById('qortal-qapps-approval');
	const approvalAppEl = document.getElementById('qortal-approval-app');
	const approvalActionEl = document.getElementById('qortal-approval-action');
	const approvalTempMinutesEl = document.getElementById('qortal-approval-temp-minutes');
	const approvalPassword = document.getElementById('qortal-approval-password');
	const approvalTtl = document.getElementById('qortal-approval-ttl');
	const approvalPolicyStatusEl = document.getElementById('qortal-approval-policy-status');
	const approvalWalletStatusEl = document.getElementById('qortal-approval-wallet-status');
	const approvalUnlockFieldsEl = document.getElementById('qortal-approval-unlock-fields');
	const approvalConfirm = document.getElementById('qortal-approval-confirm');
	const approvalCancel = document.getElementById('qortal-approval-cancel');
	const approvalError = document.getElementById('qortal-approval-error');
	const unlockModal = document.getElementById('qortal-qapps-unlock');
	const unlockAppEl = document.getElementById('qortal-unlock-app');
	const unlockActionEl = document.getElementById('qortal-unlock-action');
	const unlockPassword = document.getElementById('qortal-unlock-password');
	const unlockSession = document.getElementById('qortal-unlock-session');
	const unlockConfirm = document.getElementById('qortal-unlock-confirm');
	const unlockCancel = document.getElementById('qortal-unlock-cancel');
	const unlockError = document.getElementById('qortal-unlock-error');
	const nameRequiredModal = document.getElementById('qortal-qapps-name-required');
	const nameRequiredDashboardLink = document.getElementById('qortal-qapps-name-required-dashboard');
	const nameRequiredContinue = document.getElementById('qortal-qapps-name-required-continue');
	const nameRequiredCancel = document.getElementById('qortal-qapps-name-required-cancel');

	const debugEntries = [];
	const debugLimit = 200;
	const qdnLoadingRetryDelayMs = 4000;
	const qdnLoadingReloadFallbackDelayMs = 7000;
	const qdnLoadingRetryMaxAttempts = 240;
	const qdnLoadingMarkers = [
		'files are being retrieved from the qortal data network',
		'this page will refresh automatically when the content becomes available',
		'initializing',
		'initialising'
	];
	const qdnStatusTitles = {
		NOT_STARTED: 'Preparing resource...',
		PUBLISHED: 'Published, download not started',
		DOWNLOADING: 'Downloading from QDN...',
		DOWNLOADED: 'Downloaded, preparing content...',
		BUILDING: 'Building content...',
		MISSING_DATA: 'Missing data, waiting for peers...',
		BUILD_FAILED: 'Build failed. Retrying...',
		NOT_PUBLISHED: 'Resource not found',
		UNSUPPORTED: 'Unsupported request',
		BLOCKED: 'Content is blocked',
	};
	const qdnStatusNumericMap = {
		1: 'PUBLISHED',
		2: 'NOT_PUBLISHED',
		3: 'DOWNLOADING',
		4: 'DOWNLOADED',
		5: 'BUILDING',
		6: 'READY',
		7: 'MISSING_DATA',
		8: 'BUILD_FAILED',
		9: 'UNSUPPORTED',
		10: 'BLOCKED',
	};
	const mobileMenuClass = 'qortal-mobile-menu-open';
	const viewerOpenClass = 'qortal-viewer-open';
	const approvalScopeAliases = {
		PUBLISH_MULTIPLE_QDN_RESOURCES: 'PUBLISH_QDN_RESOURCE',
	};
	let currentWalletId = '';
	let currentWalletAddress = '';
	let currentQappAddress = '';
	let currentViewerAddress = '';
	let approvalContext = null;
	let activeApprovalPolicyMode = defaultApprovalMode;
	const walletLockState = {
		state: 'unknown',
		expiresAt: null,
	};
	const temporaryApprovalRules = [];
	let qdnLoadingRetryTimer = null;
	let qdnLoadingRetryAttempts = 0;
	let qdnLoadingStatusFailures = 0;
	let qdnLoadingLastSnapshot = '';
	let currentQdnResourceTarget = null;
	const nameLookupCacheTtlMs = 60 * 1000;
	let nameLookupCache = {
		address: '',
		hasName: null,
		checkedAt: 0,
	};

	function clearQdnLoadingProgress() {
		if (viewerLoadingProgress) {
			viewerLoadingProgress.textContent = '';
			viewerLoadingProgress.classList.add('qortal-hidden');
		}
		if (viewerLoadingStatus) {
			viewerLoadingStatus.textContent = '';
		}
		if (viewerLoadingMeta) {
			viewerLoadingMeta.textContent = '';
		}
		if (viewerLoadingProgressBar) {
			viewerLoadingProgressBar.style.width = '0%';
		}
		if (viewerLoadingOverlay) {
			viewerLoadingOverlay.classList.add('qortal-hidden');
		}
	}

	function coerceFiniteNumber(value) {
		if (typeof value === 'number' && Number.isFinite(value)) {
			return value;
		}
		if (typeof value === 'string' && value.trim() !== '') {
			const parsed = Number(value);
			if (Number.isFinite(parsed)) {
				return parsed;
			}
		}
		return null;
	}

	function getQdnStatusLabel(status, description) {
		if (typeof description === 'string' && description.trim() !== '') {
			return description.trim();
		}
		const normalizedStatus = String(status || '').trim().toUpperCase();
		if (normalizedStatus && qdnStatusTitles[normalizedStatus]) {
			return qdnStatusTitles[normalizedStatus];
		}
		return 'Loading from QDN...';
	}

	function updateQdnLoadingProgress(status, percentLoaded, localChunkCount, totalChunkCount, description) {
		const normalizedStatus = String(status || '').toUpperCase();
		if (normalizedStatus === 'READY') {
			clearQdnLoadingProgress();
			return;
		}
		const boundedPercent = coerceFiniteNumber(percentLoaded);
		const bounded =
			boundedPercent !== null ? Math.max(0, Math.min(100, boundedPercent)) : null;
		if (!viewerLoadingProgress) {
			return;
		}
		let toolbarLabel = 'Loading...';
		if (bounded !== null) {
			toolbarLabel = 'Loading ' + bounded.toFixed(1) + '%';
		}
		if (
			localChunkCount !== null
			&& localChunkCount !== undefined
			&& Number.isFinite(localChunkCount)
			&& String(toolbarLabel).indexOf('%') === -1
		) {
			toolbarLabel += ' (' + localChunkCount + ' chunks)';
		}
		viewerLoadingProgress.textContent = toolbarLabel;
		viewerLoadingProgress.classList.remove('qortal-hidden');
		if (viewerLoadingOverlay) {
			viewerLoadingOverlay.classList.remove('qortal-hidden');
		}
		if (viewerLoadingStatus) {
			const statusLabel = getQdnStatusLabel(normalizedStatus, description);
			viewerLoadingStatus.textContent =
				bounded !== null ? statusLabel + ' ' + bounded.toFixed(1) + '%' : statusLabel;
		}
		if (viewerLoadingProgressBar) {
			viewerLoadingProgressBar.style.width = (bounded !== null ? bounded : 0) + '%';
		}
		if (viewerLoadingMeta) {
			const local = coerceFiniteNumber(localChunkCount);
			const total = coerceFiniteNumber(totalChunkCount);
			if (local !== null && total !== null && total > 0) {
				viewerLoadingMeta.textContent = 'Chunks ' + local + ' / ' + total;
			} else if (local !== null) {
				viewerLoadingMeta.textContent = local + ' chunks downloaded';
			} else {
				viewerLoadingMeta.textContent = '';
			}
		}
	}

	function clearQdnLoadingRetry(reason) {
		if (qdnLoadingRetryTimer) {
			window.clearTimeout(qdnLoadingRetryTimer);
			qdnLoadingRetryTimer = null;
			logDebug('info', 'QDN loading auto-retry stopped', {
				reason: reason || 'cleared',
				attempts: qdnLoadingRetryAttempts,
			});
		}
		qdnLoadingStatusFailures = 0;
		qdnLoadingLastSnapshot = '';
		clearQdnLoadingProgress();
	}

	function safeDecodeURIComponent(value) {
		if (typeof value !== 'string') {
			return '';
		}
		try {
			return decodeURIComponent(value);
		} catch (_error) {
			return value;
		}
	}

	function stripQueryAndHash(value) {
		return String(value || '').split('#')[0].split('?')[0];
	}

	function parseQdnResourceTarget(address) {
		const normalized = normalizeBrowserAddress(address || '');
		if (!normalized || !normalized.toLowerCase().startsWith('qortal://')) {
			return null;
		}
		const rawPath = stripQueryAndHash(normalized.slice('qortal://'.length)).replace(/^\/+/, '');
		if (!rawPath) {
			return null;
		}
		const segments = rawPath
			.split('/')
			.filter(function (segment) {
				return Boolean(segment);
			})
			.map(safeDecodeURIComponent);
		if (segments.length < 2) {
			return null;
		}
		const service = String(segments[0] || '').trim().toUpperCase();
		const name = String(segments[1] || '').trim();
		if (!service || !name) {
			return null;
		}
		const identifierCandidate = segments.length > 2 ? String(segments[2] || '').trim() : '';
		return {
			service,
			name,
			identifierCandidate,
		};
	}

	function buildQdnStatusUrls(target) {
		if (!target || !target.service || !target.name) {
			return [];
		}
		const encodeSegmentsLocally = !gatewayProxyTemplate;
		const paths = [];
		const urls = [];
		const pushPath = function (segments) {
			const encoded = segments
				.filter(function (segment) {
					return typeof segment === 'string' && segment.trim() !== '';
				})
				.map(function (segment) {
					const value = segment.trim();
					return encodeSegmentsLocally ? encodeURIComponent(value) : value;
				})
				.join('/');
			if (!encoded || paths.includes(encoded)) {
				return;
			}
			paths.push(encoded);
		};
		const pushUrl = function (baseUrl, withBuildParam) {
			if (!baseUrl) {
				return;
			}
			const built = withBuildParam
				? baseUrl + (baseUrl.indexOf('?') === -1 ? '?' : '&') + 'build=true'
				: baseUrl;
			if (!urls.includes(built)) {
				urls.push(built);
			}
		};

		const base = ['arbitrary', 'resource', 'status', target.service, target.name];
		if (target.identifierCandidate) {
			pushPath(base.concat([target.identifierCandidate]));
		}
		pushPath(base);

		paths.forEach(function (path) {
			const baseUrl = openGatewayPath(path);
			// Prefer build=true (progress/status from loading flow), but fall back to plain status.
			pushUrl(baseUrl, true);
			pushUrl(baseUrl, false);
		});

		return urls.filter(function (url) {
			return Boolean(url);
		});
	}

	function isLikelyStatus404(result) {
		if (!result) {
			return false;
		}
		if (result.status !== 404) {
			return false;
		}
		const body = result.json;
		if (!body || typeof body !== 'object') {
			return true;
		}
		const message =
			(typeof body.message === 'string' ? body.message : '')
			|| (typeof body.error === 'string' ? body.error : '');
		return message.toLowerCase().includes('not found') || message === '';
	}

	async function probeQdnResourceProperties(target) {
		if (!target || !target.service || !target.name) {
			return { ok: false };
		}
		const identifier = target.identifierCandidate || 'default';
		const path = `arbitrary/resource/properties/${target.service}/${target.name}/${identifier}`;
		const baseUrl = openGatewayPath(path);
		if (!baseUrl) {
			return { ok: false };
		}
		try {
			const result = await fetchJsonWithTimeout(baseUrl + (baseUrl.indexOf('?') === -1 ? '?' : '&') + 'build=true', 4500);
			if (!result.ok) {
				return { ok: false };
			}
			// properties endpoint is mostly used to trigger/build; return generic downloading state.
			return {
				ok: true,
				status: 'BUILDING',
				description: 'Initializing and building content...',
				percentLoaded: null,
				localChunkCount: null,
				totalChunkCount: null,
				url: baseUrl,
			};
		} catch (_error) {
			return { ok: false };
		}
	}

	async function probeQdnResourceStatus(target) {
		const urls = buildQdnStatusUrls(target);
		let sawStatus404 = false;
		for (let i = 0; i < urls.length; i += 1) {
			const url = urls[i];
			try {
				const result = await fetchJsonWithTimeout(url, 4500);
				if (!result.ok || !result.json) {
					if (isLikelyStatus404(result)) {
						sawStatus404 = true;
					}
					continue;
				}
				const parsed = parseQdnStatusPayload(result.json);
				if (!parsed) {
					continue;
				}
				return {
					ok: true,
					status: String(parsed.status || '').toUpperCase(),
					description: parsed.description || '',
					percentLoaded: coerceFiniteNumber(parsed.percentLoaded),
					localChunkCount: coerceFiniteNumber(parsed.localChunkCount),
					totalChunkCount: coerceFiniteNumber(parsed.totalChunkCount),
					url,
				};
			} catch (_error) {
				// Try the next candidate URL.
			}
		}
		if (sawStatus404) {
			logDebug('warn', 'QDN status endpoint returned 404 variants; falling back to properties probe', {
				service: target.service,
				name: target.name,
				identifier: target.identifierCandidate || '',
			});
			const propertiesResult = await probeQdnResourceProperties(target);
			if (propertiesResult.ok) {
				return propertiesResult;
			}
		}
		return { ok: false };
	}

	function parseQdnStatusCandidate(candidate) {
		if (!candidate || typeof candidate !== 'object') {
			return null;
		}
		const nestedStatus =
			candidate.status && typeof candidate.status === 'object' ? candidate.status : null;
		let statusCode = '';
		const rawCandidates = [
			candidate.id,
			candidate.status,
			nestedStatus ? nestedStatus.id : null,
			nestedStatus ? nestedStatus.status : null,
			nestedStatus ? nestedStatus.name : null,
		];
		for (let i = 0; i < rawCandidates.length; i += 1) {
			const value = rawCandidates[i];
			if (typeof value === 'string' && value.trim() !== '') {
				statusCode = value.trim().toUpperCase();
				break;
			}
		}
		if (!statusCode) {
			const numericValue = coerceFiniteNumber(candidate.status)
				|| (nestedStatus ? coerceFiniteNumber(nestedStatus.value) : null);
			if (numericValue !== null && qdnStatusNumericMap[Math.floor(numericValue)]) {
				statusCode = qdnStatusNumericMap[Math.floor(numericValue)];
			}
		}
		if (!statusCode) {
			return null;
		}

		let localChunkCount = coerceFiniteNumber(candidate.localChunkCount);
		if (localChunkCount === null && nestedStatus) {
			localChunkCount = coerceFiniteNumber(nestedStatus.localChunkCount);
		}
		let totalChunkCount = coerceFiniteNumber(candidate.totalChunkCount);
		if (totalChunkCount === null && nestedStatus) {
			totalChunkCount = coerceFiniteNumber(nestedStatus.totalChunkCount);
		}
		let percentLoaded = coerceFiniteNumber(candidate.percentLoaded);
		if (percentLoaded === null && nestedStatus) {
			percentLoaded = coerceFiniteNumber(nestedStatus.percentLoaded);
		}
		if (percentLoaded === null && localChunkCount !== null && totalChunkCount !== null && totalChunkCount > 0) {
			percentLoaded = (localChunkCount / totalChunkCount) * 100;
		}

		return {
			status: statusCode,
			description:
				(typeof candidate.description === 'string' && candidate.description.trim() !== '' ? candidate.description.trim() : '')
				|| (nestedStatus && typeof nestedStatus.description === 'string' ? nestedStatus.description.trim() : '')
				|| (typeof candidate.title === 'string' ? candidate.title.trim() : ''),
			percentLoaded,
			localChunkCount,
			totalChunkCount,
		};
	}

	function parseQdnStatusPayload(payload) {
		const visited = new Set();
		const queue = [payload];
		let depth = 0;
		while (queue.length > 0 && depth < 16) {
			const candidate = queue.shift();
			depth += 1;
			if (!candidate || typeof candidate !== 'object') {
				continue;
			}
			if (visited.has(candidate)) {
				continue;
			}
			visited.add(candidate);
			const parsed = parseQdnStatusCandidate(candidate);
			if (parsed) {
				return parsed;
			}
			if (candidate.data && typeof candidate.data === 'object') {
				queue.push(candidate.data);
			}
			if (candidate.result && typeof candidate.result === 'object') {
				queue.push(candidate.result);
			}
			if (candidate.status && typeof candidate.status === 'object') {
				queue.push(candidate.status);
			}
		}
		return null;
	}

	async function fetchJsonWithTimeout(url, timeoutMs) {
		const canAbort = typeof window.AbortController === 'function';
		const controller = canAbort ? new window.AbortController() : null;
		let timeoutId = null;
		if (controller && timeoutMs > 0) {
			timeoutId = window.setTimeout(function () {
				controller.abort();
			}, timeoutMs);
		}
		try {
			const response = await fetch(url, {
				method: 'GET',
				signal: controller ? controller.signal : undefined,
			});
			const rawText = await response.text();
			let json = null;
			if (rawText) {
				try {
					json = JSON.parse(rawText);
				} catch (_error) {
					json = null;
				}
			}
			return {
				ok: response.ok,
				status: response.status,
				json,
			};
		} finally {
			if (timeoutId) {
				window.clearTimeout(timeoutId);
			}
		}
	}

	function detectQdnLoadingInterstitial() {
		if (!viewerFrame) {
			return { inspectable: false, detected: false };
		}
		let doc = null;
		try {
			doc = viewerFrame.contentDocument;
		} catch (_error) {
			return { inspectable: false, detected: false };
		}
		if (!doc || !doc.body) {
			return { inspectable: true, detected: false };
		}
		const bodyText = (doc.body.innerText || doc.body.textContent || '').toLowerCase();
		const titleText = String(doc.title || '').toLowerCase();
		const combinedText = bodyText + '\n' + titleText;
		const detected = qdnLoadingMarkers.some(function (marker) {
			return combinedText.includes(marker);
		});
		return { inspectable: true, detected };
	}

	function reloadViewerFrame() {
		if (!viewerFrame) {
			return false;
		}
		try {
			if (viewerFrame.contentWindow) {
				viewerFrame.contentWindow.location.reload();
				return true;
			}
		} catch (_error) {
			// fallback below
		}
		try {
			if (viewerFrame.src) {
				viewerFrame.src = viewerFrame.src;
				return true;
			}
		} catch (_error) {
			return false;
		}
		return false;
	}

	async function runQdnLoadingRetryTick() {
		if (qdnLoadingRetryAttempts >= qdnLoadingRetryMaxAttempts) {
			logDebug('warn', 'QDN loading auto-retry max attempts reached', {
				attempts: qdnLoadingRetryAttempts,
			});
			return;
		}
		if (!viewerCard || viewerCard.classList.contains('qortal-hidden')) {
			clearQdnLoadingRetry('viewer_hidden');
			return;
		}
		const detection = detectQdnLoadingInterstitial();
		if (!detection.inspectable) {
			clearQdnLoadingRetry('cross_origin_or_uninspectable');
			return;
		}
		let prefetchedStatusResult = null;
		if (!detection.detected && currentQdnResourceTarget) {
			prefetchedStatusResult = await probeQdnResourceStatus(currentQdnResourceTarget);
			if (prefetchedStatusResult.ok) {
				updateQdnLoadingProgress(
					prefetchedStatusResult.status,
					prefetchedStatusResult.percentLoaded,
					prefetchedStatusResult.localChunkCount,
					prefetchedStatusResult.totalChunkCount,
					prefetchedStatusResult.description
				);
				if (prefetchedStatusResult.status === 'READY') {
					const shouldForceRefresh =
						qdnLoadingRetryAttempts > 0
						|| (viewerLoadingOverlay && !viewerLoadingOverlay.classList.contains('qortal-hidden'));
					if (shouldForceRefresh) {
						logDebug('info', 'QDN status ready after loading flow, forcing viewer refresh', {
							attempt: qdnLoadingRetryAttempts,
						});
						clearQdnLoadingRetry('status_ready_refresh');
						qdnLoadingRetryAttempts = 0;
						reloadViewerFrame();
						return;
					}
					clearQdnLoadingRetry('content_loaded');
					qdnLoadingRetryAttempts = 0;
					return;
				}
			} else {
				clearQdnLoadingRetry('content_loaded');
				qdnLoadingRetryAttempts = 0;
				return;
			}
		}
		if (!detection.detected && !prefetchedStatusResult) {
			clearQdnLoadingRetry('content_loaded');
			qdnLoadingRetryAttempts = 0;
			return;
		}
		updateQdnLoadingProgress('DOWNLOADING', null, null, null, '');

		qdnLoadingRetryAttempts += 1;
		let shouldReload = true;
		let delayMs = qdnLoadingRetryDelayMs;

		if (currentQdnResourceTarget) {
			const statusResult = prefetchedStatusResult || await probeQdnResourceStatus(currentQdnResourceTarget);
			if (statusResult.ok) {
				qdnLoadingStatusFailures = 0;
				const statusSnapshot =
					statusResult.status + ':'
					+ (statusResult.percentLoaded !== null ? statusResult.percentLoaded : '')
					+ ':'
					+ (statusResult.localChunkCount !== null ? statusResult.localChunkCount : '');
				if (
					statusSnapshot !== qdnLoadingLastSnapshot
					|| qdnLoadingRetryAttempts % 8 === 0
				) {
					logDebug('info', 'QDN loading status', {
						attempt: qdnLoadingRetryAttempts,
						status: statusResult.status,
						percentLoaded: statusResult.percentLoaded,
						localChunkCount: statusResult.localChunkCount,
						totalChunkCount: statusResult.totalChunkCount,
					});
					qdnLoadingLastSnapshot = statusSnapshot;
				}
				updateQdnLoadingProgress(
					statusResult.status,
					statusResult.percentLoaded,
					statusResult.localChunkCount,
					statusResult.totalChunkCount,
					statusResult.description
				);
				if (statusResult.status === 'READY') {
					logDebug('info', 'QDN resource ready, refreshing viewer', {
						attempt: qdnLoadingRetryAttempts,
					});
					reloadViewerFrame();
					return;
				}
				shouldReload = false;
			} else {
				qdnLoadingStatusFailures += 1;
				delayMs = qdnLoadingReloadFallbackDelayMs;
				if (qdnLoadingStatusFailures <= 3) {
					shouldReload = false;
					logDebug('warn', 'QDN status probe failed, waiting before fallback reload', {
						attempt: qdnLoadingRetryAttempts,
						failures: qdnLoadingStatusFailures,
					});
				}
			}
		}

		if (shouldReload) {
			logDebug('info', 'QDN loading detected, retrying load', {
				attempt: qdnLoadingRetryAttempts,
				delayMs,
				mode: currentQdnResourceTarget ? 'fallback_reload' : 'reload',
			});
			reloadViewerFrame();
		}
		scheduleQdnLoadingRetry(delayMs);
	}

	function scheduleQdnLoadingRetry(delayOverrideMs) {
		if (qdnLoadingRetryTimer) {
			return;
		}
		if (qdnLoadingRetryAttempts >= qdnLoadingRetryMaxAttempts) {
			logDebug('warn', 'QDN loading auto-retry max attempts reached', {
				attempts: qdnLoadingRetryAttempts,
			});
			return;
		}
		const nextDelay =
			typeof delayOverrideMs === 'number' && Number.isFinite(delayOverrideMs)
				? Math.max(1000, Math.floor(delayOverrideMs))
				: qdnLoadingRetryDelayMs;
		qdnLoadingRetryTimer = window.setTimeout(function () {
			qdnLoadingRetryTimer = null;
			runQdnLoadingRetryTick().catch(function (error) {
				logDebug('warn', 'QDN loading retry tick failed', {
					error: error && error.message ? error.message : String(error),
				});
				scheduleQdnLoadingRetry(qdnLoadingReloadFallbackDelayMs);
			});
		}, nextDelay);
	}

	function fallbackApprovalScope(requestType) {
		return approvalScopeAliases[requestType] || requestType || '';
	}

	function normalizeApprovalScope(scope, requestType) {
		const candidate = typeof scope === 'string' ? scope.trim() : '';
		if (!candidate) {
			return fallbackApprovalScope(requestType);
		}
		if (requestType && approvalScopeAliases[requestType] && candidate === requestType) {
			return approvalScopeAliases[requestType];
		}
		return candidate;
	}

	function sanitizeDebugValue(value) {
		if (!value || typeof value !== 'object') {
			return value;
		}
		if (Array.isArray(value)) {
			return value.map(sanitizeDebugValue);
		}
		const clone = {};
		for (const key in value) {
			if (!Object.prototype.hasOwnProperty.call(value, key)) {
				continue;
			}
			const lower = key.toLowerCase();
			if (
				lower.includes('seed') ||
				lower.includes('password') ||
				lower.includes('secret') ||
				lower.includes('backup')
			) {
				clone[key] = '[redacted]';
				continue;
			}
			clone[key] = sanitizeDebugValue(value[key]);
		}
		return clone;
	}

	function logDebug(level, message, details) {
		if (!debugEnabled || !debugBody) {
			return;
		}
		const timestamp = new Date().toISOString();
		const entry = {
			time: timestamp,
			level,
			message,
			details: sanitizeDebugValue(details),
		};
		debugEntries.push(entry);
		if (debugEntries.length > debugLimit) {
			debugEntries.shift();
		}
		const lines = debugEntries.map(function (item) {
			const suffix = item.details !== undefined ? ' ' + JSON.stringify(item.details) : '';
			const level = item.level.toUpperCase();
			return '[' + item.time + '] ' + level + ': ' + item.message + suffix;
		});
		debugBody.textContent = lines.join('\n');
		debugBody.scrollTop = debugBody.scrollHeight;
	}

	if (debugFromQuery && window.localStorage) {
		window.localStorage.setItem('qortal_qapps_debug', '1');
	}

	function detectTheme() {
		const docEl = document.documentElement;
		const body = document.body;
		const dataTheme = (docEl && docEl.dataset ? docEl.dataset.theme : '') || (body && body.dataset ? body.dataset.theme : '');
		if (dataTheme) {
			return dataTheme;
		}
		const classList = (docEl && docEl.classList ? docEl.classList : body && body.classList ? body.classList : null);
		if (classList) {
			if (classList.contains('theme-dark') || classList.contains('dark') || classList.contains('theme--dark') || classList.contains('nc-dark')) {
				return 'dark';
			}
			if (classList.contains('theme-light') || classList.contains('light') || classList.contains('theme--light') || classList.contains('nc-light')) {
				return 'light';
			}
		}
		if (window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches) {
			return 'dark';
		}
		return 'light';
	}

	function detectLanguage() {
		return (document.documentElement && document.documentElement.lang) || navigator.language || '';
	}

	function appendThemeParams(url) {
		if (!url) {
			return url;
		}
		try {
			const u = new URL(url, window.location.origin);
			if (!u.searchParams.has('theme')) {
				u.searchParams.set('theme', detectTheme());
			}
			const lang = detectLanguage();
			if (lang && !u.searchParams.has('lang')) {
				u.searchParams.set('lang', lang);
			}
			return u.toString();
		} catch (error) {
			return url;
		}
	}

	function encodeGatewayPath(path) {
		return path
			.split('/')
			.map(function (segment) {
				return encodeURIComponent(segment);
			})
			.join('/');
	}

	function buildProxyUrl(path) {
		if (!gatewayProxyTemplate) {
			return '';
		}
		if (gatewayProxyTemplate.includes('__PATH__')) {
			return gatewayProxyTemplate.replace('__PATH__', encodeGatewayPath(path));
		}
		return gatewayProxyTemplate + encodeURIComponent(path);
	}

	function isUpstreamRootPath(path) {
		const normalized = String(path || '').replace(/^\/+/, '');
		return /^(render|arbitrary|names|addresses|transactions|blocks|crosschain|groups|chat|lists|assets|at|admin|peers|utils|apps|payments|polls|stats|bootstrap|developer|websockets)(\/|$)/i.test(normalized);
	}

	function toUpstreamProxyPath(path, preferRender) {
		const normalized = String(path || '').replace(/^\/+/, '');
		if (!normalized) {
			return '';
		}
		if (preferRender && nodeUrl && !isUpstreamRootPath(normalized)) {
			return 'render/' + normalized;
		}
		return normalized;
	}

	function resolveGatewayAddress(address, ensureTrailingSlash) {
		if (!address) {
			return '';
		}
		let path = address.trim();
		if (/^https?:\/\//i.test(path)) {
			return appendThemeParams(path);
		}
		if (path.toLowerCase().startsWith('qortal://')) {
			path = path.slice('qortal://'.length);
		}
		path = path.replace(/^\/+/, '');
		if (ensureTrailingSlash && path && !path.endsWith('/')) {
			path += '/';
		}
		const upstreamPath = toUpstreamProxyPath(path, true);
		if (gatewayProxyTemplate) {
			if (!viewerRendererConfigured) {
				return '';
			}
			return appendThemeParams(buildProxyUrl(upstreamPath));
		}
		const directBase = nodeUrl ? nodeUrl.replace(/\/$/, '') : gatewayUrl.replace(/\/$/, '');
		if (!directBase) {
			return '';
		}
		const base = directBase.replace(/\/$/, '');
		return appendThemeParams(base + '/' + upstreamPath);
	}

	function normalizeBrowserAddress(address) {
		const raw = String(address || '').trim();
		if (!raw) {
			return '';
		}
		if (!raw.toLowerCase().startsWith('qortal://')) {
			return raw;
		}
		const afterScheme = raw.slice('qortal://'.length).replace(/^\/+/, '');
		if (!afterScheme) {
			return raw;
		}
		// Browser convenience: qortal://Name -> qortal://WEBSITE/Name
		if (!afterScheme.includes('/')) {
			return 'qortal://WEBSITE/' + afterScheme;
		}
		return raw;
	}

	function deriveSafeReloadAddress(address) {
		const normalized = normalizeBrowserAddress(address || '');
		if (!normalized || !normalized.toLowerCase().startsWith('qortal://')) {
			return normalized;
		}
		const rawPath = stripQueryAndHash(normalized.slice('qortal://'.length)).replace(/^\/+/, '');
		if (!rawPath) {
			return normalized;
		}
		const segments = rawPath
			.split('/')
			.filter(function (segment) {
				return Boolean(segment);
			})
			.map(safeDecodeURIComponent);
		if (segments.length < 2) {
			return normalized;
		}
		const service = String(segments[0] || '').trim().toUpperCase();
		const name = String(segments[1] || '').trim();
		if (!service || !name) {
			return normalized;
		}
		if (service === 'APP') {
			return 'qortal://APP/' + name;
		}
		return normalized;
	}

	function setViewerAddressDisplay(address) {
		const value = String(address || '').trim();
		currentViewerAddress = value;
		if (viewerAddress) {
			viewerAddress.textContent = value;
		}
		if (viewerAddressInput) {
			viewerAddressInput.value = value;
		}
	}

	function parseQortalAddressFromViewerUrl(url) {
		if (!url) {
			return '';
		}
		try {
			const parsed = new URL(url, window.location.origin);
			const gatewayMarker = '/apps/qortal_integration/gateway/';
			const markerIndex = parsed.pathname.indexOf(gatewayMarker);
			if (markerIndex < 0) {
				return '';
			}
			let upstreamPath = parsed.pathname
				.slice(markerIndex + gatewayMarker.length)
				.replace(/^\/+/, '');
			if (!upstreamPath) {
				return '';
			}
			if (upstreamPath.toLowerCase().startsWith('render/')) {
				upstreamPath = upstreamPath.slice('render/'.length);
			}
			const decodedPath = upstreamPath
				.split('/')
				.map(function (segment) {
					return safeDecodeURIComponent(segment);
				})
				.join('/');
			return normalizeBrowserAddress('qortal://' + decodedPath + parsed.search + parsed.hash);
		} catch (_error) {
			return '';
		}
	}

	function getNavigationAddressFromPayload(payload) {
		if (!payload || typeof payload !== 'object') {
			return '';
		}
		const candidates = [
			payload.qortalLink,
			payload.address,
			payload.url,
			payload.href,
			payload.path,
			payload.value,
		];
		for (let i = 0; i < candidates.length; i += 1) {
			const candidate = candidates[i];
			if (typeof candidate !== 'string' || candidate.trim() === '') {
				continue;
			}
			const trimmed = candidate.trim();
			if (trimmed.toLowerCase().startsWith('qortal://')) {
				return normalizeBrowserAddress(trimmed);
			}
			if (trimmed.startsWith('/')) {
				return normalizeBrowserAddress('qortal://' + trimmed.replace(/^\/+/, ''));
			}
			if (/^[a-z][a-z0-9+.-]*:\/\//i.test(trimmed)) {
				const parsed = parseQortalAddressFromViewerUrl(trimmed);
				if (parsed) {
					return parsed;
				}
			} else {
				return normalizeBrowserAddress('qortal://' + trimmed.replace(/^\/+/, ''));
			}
		}
		return '';
	}

	function syncViewerAddressFromFrame() {
		if (!viewerFrame || !viewerFrame.contentWindow) {
			return '';
		}
		try {
			const href = viewerFrame.contentWindow.location.href;
			const parsed = parseQortalAddressFromViewerUrl(href);
			if (parsed) {
				setViewerAddressDisplay(parsed);
				return parsed;
			}
		} catch (_error) {
			// ignore cross-origin access failures
		}
		return '';
	}

	function copyText(value) {
		const text = String(value || '').trim();
		if (!text) {
			return Promise.resolve(false);
		}
		if (navigator.clipboard && navigator.clipboard.writeText) {
			return navigator.clipboard.writeText(text).then(function () {
				return true;
			}).catch(function () {
				return false;
			});
		}
		return Promise.resolve(false);
	}

	function getDashboardRegisterUrl() {
		const base = (nextcloudPublicUrl || (window.location.origin + (typeof OC !== 'undefined' && OC.webroot ? OC.webroot : '')))
			.replace(/\/$/, '');
		return base + '/apps/qortal_integration/account?highlight=register-name';
	}

	async function postBrokerQortalRequest(requestType, payload) {
		if (!qappsRequestUrl) {
			throw new Error('Q-Apps request endpoint is not configured');
		}
		const headers = { 'Content-Type': 'application/json' };
		if (typeof OC !== 'undefined' && OC.requestToken) {
			headers.requesttoken = OC.requestToken;
		}
		const response = await fetch(qappsRequestUrl, {
			method: 'POST',
			headers,
			body: JSON.stringify({
				requestType,
				payload: payload || {},
			}),
		});
		const json = await response.json();
		if (!response.ok || !json || json.ok === false || json.error) {
			throw new Error((json && json.error) || 'qortal_request_failed');
		}
		return json.data !== undefined ? json.data : json;
	}

	function parsePrimaryNameResult(resultPayload) {
		if (typeof resultPayload === 'string') {
			return resultPayload.trim();
		}
		if (Array.isArray(resultPayload)) {
			return resultPayload.length > 0 ? parsePrimaryNameResult(resultPayload[0]) : '';
		}
		if (resultPayload && typeof resultPayload === 'object') {
			return String(
				resultPayload.name
				|| resultPayload.primaryName
				|| (resultPayload.data && resultPayload.data.name)
				|| ''
			).trim();
		}
		return '';
	}

	async function hasRegisteredName(address) {
		const normalizedAddress = String(address || '').trim();
		if (!normalizedAddress) {
			return true;
		}
		const now = Date.now();
		if (
			nameLookupCache.address === normalizedAddress
			&& typeof nameLookupCache.hasName === 'boolean'
			&& (now - nameLookupCache.checkedAt) <= nameLookupCacheTtlMs
		) {
			return nameLookupCache.hasName;
		}

		let hasName = false;
		try {
			const primaryName = parsePrimaryNameResult(
				await postBrokerQortalRequest('GET_PRIMARY_NAME', { address: normalizedAddress })
			);
			if (primaryName) {
				hasName = true;
			} else {
				const namesResult = await postBrokerQortalRequest('GET_ACCOUNT_NAMES', { address: normalizedAddress });
				if (Array.isArray(namesResult)) {
					hasName = namesResult.some(function (entry) {
						if (typeof entry === 'string') {
							return entry.trim() !== '';
						}
						if (entry && typeof entry === 'object') {
							return String(entry.name || '').trim() !== '';
						}
						return false;
					});
				}
			}
		} catch (error) {
			logDebug('warn', 'Registered-name check failed; allowing access', {
				address: normalizedAddress,
				error: error && error.message ? error.message : String(error),
			});
			hasName = true;
		}

		nameLookupCache = {
			address: normalizedAddress,
			hasName,
			checkedAt: now,
		};
		return hasName;
	}

	function showRegisteredNameRequiredModal() {
		return new Promise(function (resolve) {
			if (!nameRequiredModal || !nameRequiredDashboardLink || !nameRequiredContinue || !nameRequiredCancel) {
				resolve('continue');
				return;
			}
			const dashboardUrl = getDashboardRegisterUrl();
			nameRequiredDashboardLink.href = dashboardUrl;
			nameRequiredModal.classList.remove('qortal-hidden');

			const cleanup = function () {
				nameRequiredDashboardLink.onclick = null;
				nameRequiredContinue.onclick = null;
				nameRequiredCancel.onclick = null;
				nameRequiredModal.classList.add('qortal-hidden');
			};

			nameRequiredDashboardLink.onclick = function (event) {
				if (event) {
					event.preventDefault();
				}
				cleanup();
				resolve('dashboard');
			};
			nameRequiredContinue.onclick = function () {
				cleanup();
				resolve('continue');
			};
			nameRequiredCancel.onclick = function () {
				cleanup();
				resolve('cancel');
			};
		});
	}

	async function ensureRegisteredNameBeforeOpening() {
		let effectiveAddress = String(currentWalletAddress || '').trim();
		if (!effectiveAddress && currentWalletId && userMappingsUrl) {
			await refreshUserMapping();
			effectiveAddress = String(currentWalletAddress || '').trim();
		}
		if (!effectiveAddress) {
			return true;
		}
		const hasName = await hasRegisteredName(effectiveAddress);
		if (hasName) {
			return true;
		}
		const decision = await showRegisteredNameRequiredModal();
		if (decision === 'dashboard') {
			window.location.href = getDashboardRegisterUrl();
			return false;
		}
		return decision === 'continue';
	}

	function setMobileMenuOpen(open, shouldResize) {
		const isOpen = Boolean(open);
		root.classList.toggle(mobileMenuClass, isOpen);
		if (mobileMenuToggle) {
			mobileMenuToggle.setAttribute('aria-expanded', isOpen ? 'true' : 'false');
		}
		if (viewerMenuToggle) {
			viewerMenuToggle.setAttribute('aria-expanded', isOpen ? 'true' : 'false');
		}
		if (shouldResize) {
			resizeViewerFrame();
		}
	}

	function setViewerOpen(open) {
		const isOpen = Boolean(open);
		root.classList.toggle(viewerOpenClass, isOpen);
		if (pageHeader) {
			pageHeader.style.display = isOpen ? 'none' : '';
		}
	}

	async function openAddress(address, name) {
		if (!address || !viewerCard || !viewerFrame || !viewerAddress) {
			return;
		}
		const allowedToOpen = await ensureRegisteredNameBeforeOpening();
		if (!allowedToOpen) {
			return;
		}
		const normalizedAddress = normalizeBrowserAddress(address);
		const resolved = resolveGatewayAddress(normalizedAddress, true);
		if (!resolved) {
			window.alert('Qortal node or gateway URL is not configured. Ask an admin to configure rendering.');
			return;
		}
		currentQappAddress = normalizedAddress;
		currentQdnResourceTarget = parseQdnResourceTarget(normalizedAddress);
		logDebug('info', 'Opening Q-App', { address: normalizedAddress, resolved });
		clearQdnLoadingRetry('open_address');
		qdnLoadingRetryAttempts = 0;
		qdnLoadingStatusFailures = 0;
		qdnLoadingLastSnapshot = '';
		updateQdnLoadingProgress('NOT_STARTED', 0, null, null, '');
		setViewerAddressDisplay(normalizedAddress);
		if (viewerAddressInputWrap) {
			viewerAddressInputWrap.classList.remove('qortal-hidden');
		}
		if (viewerAddress) {
			viewerAddress.classList.remove('qortal-hidden');
		}
		viewerFrame.src = resolved;
		viewerCard.classList.remove('qortal-hidden');
		setViewerOpen(true);
		setMobileMenuOpen(false, false);
		resizeViewerFrame();
		if (debugCard && debugEnabled) {
			const docked = window.localStorage && window.localStorage.getItem('qortal_qapps_debug_dock') === '1';
			debugCard.classList.toggle('qortal-debug-floating', !docked);
			if (!debugCard.classList.contains('qortal-debug-minimized')) {
				debugCard.classList.remove('qortal-hidden');
			}
		}
		if (viewerOpenExternal) {
			viewerOpenExternal.textContent = 'Copy link';
			viewerOpenExternal.onclick = async function () {
				const fromFrame = syncViewerAddressFromFrame();
				const linkToCopy = fromFrame || currentViewerAddress || currentQappAddress || normalizedAddress;
				const copied = await copyText(linkToCopy);
				viewerOpenExternal.textContent = copied ? 'Copied' : 'Copy failed';
				window.setTimeout(function () {
					viewerOpenExternal.textContent = 'Copy link';
				}, 1200);
			};
		}
		if (viewerClose) {
			viewerClose.onclick = function () {
				clearQdnLoadingRetry('viewer_closed');
				qdnLoadingRetryAttempts = 0;
				currentQdnResourceTarget = null;
				setViewerOpen(false);
				setMobileMenuOpen(false, false);
				viewerFrame.src = 'about:blank';
				viewerCard.classList.add('qortal-hidden');
			};
		}
		if (viewerBack) {
			viewerBack.onclick = function () {
				try {
					if (viewerFrame.contentWindow) {
						viewerFrame.contentWindow.history.back();
					}
				} catch (_err) {
					// ignore cross-origin issues
				}
			};
		}
		if (viewerReload) {
			viewerReload.onclick = function () {
				const preferredAddress =
					deriveSafeReloadAddress(currentViewerAddress || currentQappAddress || '');
				if (preferredAddress && preferredAddress.toLowerCase().startsWith('qortal://')) {
					logDebug('info', 'Reload routed to safe reopen', {
						currentViewerAddress: currentViewerAddress || '',
						currentQappAddress: currentQappAddress || '',
						reloadAddress: preferredAddress,
					});
					openAddress(preferredAddress, 'Qortal Browser');
					return;
				}
				try {
					if (viewerFrame.contentWindow) {
						viewerFrame.contentWindow.location.reload();
					}
				} catch (_err) {
					// ignore cross-origin issues
				}
			};
		}
	}

	function resizeViewerFrame() {
		if (!viewerFrameWrap) {
			return;
		}
		const rect = viewerFrameWrap.getBoundingClientRect();
		const rootRect = root.getBoundingClientRect();
		const viewportHeight =
			(window.visualViewport && window.visualViewport.height) ||
			window.innerHeight ||
			document.documentElement.clientHeight ||
			0;
		const viewportWidth =
			(window.visualViewport && window.visualViewport.width) ||
			window.innerWidth ||
			document.documentElement.clientWidth ||
			0;
		const isMobile = viewportWidth && viewportWidth <= 780;
		if (!isMobile && root.classList.contains(mobileMenuClass)) {
			setMobileMenuOpen(false, false);
		}
		const padding = isMobile ? 8 : 16;
		let nextHeight = Math.floor(viewportHeight - rect.top - padding);
		if (root.classList.contains(viewerOpenClass) && Number.isFinite(rootRect.bottom)) {
			const containerPadding = isMobile ? 4 : 8;
			const containerBoundHeight = Math.floor(rootRect.bottom - rect.top - containerPadding);
			if (Number.isFinite(containerBoundHeight) && containerBoundHeight > 0) {
				nextHeight = Math.min(nextHeight, containerBoundHeight);
			}
		}
		if (isMobile) {
			const maxMobile = Math.floor(viewportHeight * 0.85);
			nextHeight = Math.min(nextHeight, maxMobile);
		}
		const minHeight = isMobile ? Math.max(160, Math.floor(viewportHeight * 0.45)) : 360;
		nextHeight = Math.max(minHeight, nextHeight);
		viewerFrameWrap.style.height = nextHeight + 'px';
	}

	function renderList() {
		if (!listBody) {
			return;
		}
		listBody.innerHTML = '';
		if (!enabled || qapps.length === 0) {
			listBody.innerHTML = '<tr><td colspan="4">No Q-Apps available.</td></tr>';
			return;
		}

		qapps.forEach(function (entry) {
			const row = document.createElement('tr');

			const nameCell = document.createElement('td');
			nameCell.textContent = entry.name || '';

			const addressCell = document.createElement('td');
			const addressCode = document.createElement('code');
			addressCode.textContent = entry.address || '';
			addressCell.appendChild(addressCode);

			const descCell = document.createElement('td');
			descCell.textContent = entry.description || '';

			const actionCell = document.createElement('td');
			const launchButton = document.createElement('button');
			launchButton.className = 'button';
			launchButton.textContent = 'Launch';
			launchButton.disabled = !viewerRendererConfigured;
			if (!viewerRendererConfigured) {
				launchButton.title = 'Qortal node or gateway URL is not configured.';
			}
			launchButton.addEventListener('click', function () {
				openAddress(entry.address || '', entry.name || '');
			});
			actionCell.appendChild(launchButton);

			row.appendChild(nameCell);
			row.appendChild(addressCell);
			row.appendChild(descCell);
			row.appendChild(actionCell);
			listBody.appendChild(row);
		});
	}

	if (emptyCard) {
		emptyCard.style.display = enabled || browserEnabled ? 'none' : 'block';
	}

	if (browserCard) {
		if (browserEnabled && browserAddress) {
			browserCard.style.display = 'block';
			if (browserAddressEl) {
				browserAddressEl.textContent = browserAddress;
			}
			if (browserButton) {
				browserButton.addEventListener('click', function () {
					openAddress(browserAddress, 'Qortal Browser');
				});
			}
		} else {
			browserCard.style.display = 'none';
		}
	}

	if (listCard) {
		listCard.style.display = enabled ? 'block' : 'none';
	}

	if (settingsLink) {
		const base = (nextcloudPublicUrl || (window.location.origin + (typeof OC !== 'undefined' && OC.webroot ? OC.webroot : '')))
			.replace(/\/$/, '');
		settingsLink.href = base + settingsPath;
	}
	if (nameRequiredDashboardLink) {
		nameRequiredDashboardLink.href = getDashboardRegisterUrl();
	}

	async function refreshUserMapping() {
		if (!warningCard || !userMappingsUrl) {
			return;
		}
		try {
			const headers = {};
			if (typeof OC !== 'undefined' && OC.requestToken) {
				headers.requesttoken = OC.requestToken;
			}
			const response = await fetch(userMappingsUrl, { method: 'GET', headers });
			const payload = await response.json();
			let mappings = [];
			if (payload && Array.isArray(payload.mappings)) {
				mappings = payload.mappings;
			} else if (payload && payload.data && Array.isArray(payload.data.mappings)) {
				mappings = payload.data.mappings;
			}
			let selected = null;
			const hasWallet = mappings.some(function (entry) {
				if (!entry || typeof entry !== 'object') {
					return false;
				}
				if (!entry.walletId) {
					return false;
				}
				if (entry.status && entry.status !== 'linked') {
					return false;
				}
				if (!selected) {
					selected = entry;
				}
				return true;
			});
			if (!selected) {
				selected = mappings.find(function (entry) {
					return entry && entry.walletId;
				});
			}
			if (!selected) {
				selected = mappings.find(function (entry) {
					return entry && entry.qortalAddress;
				});
			}
			currentWalletId = selected && selected.walletId ? String(selected.walletId) : '';
			currentWalletAddress = selected && selected.qortalAddress ? String(selected.qortalAddress) : '';
			if (nameLookupCache.address !== currentWalletAddress) {
				nameLookupCache = {
					address: '',
					hasName: null,
					checkedAt: 0,
				};
			}
			if (currentWalletId) {
				await refreshWalletLockState(currentWalletId);
			} else {
				markWalletUnknown();
			}
			warningCard.classList.toggle('qortal-hidden', hasWallet);
		} catch (error) {
			warningCard.classList.add('qortal-hidden');
			markWalletUnknown();
		}
	}

	function openFromQuery() {
		const params = new URLSearchParams(window.location.search);
		const raw = params.get('qapp') || params.get('app');
		if (!raw) {
			return;
		}
		const target = decodeURIComponent(raw);
		const match = qapps.find(function (entry) {
			return entry && (entry.address === target || entry.name === target);
		});
		if (match) {
			openAddress(match.address || '', match.name || '');
		}
	}

	renderList();
	Promise.resolve(refreshUserMapping()).finally(function () {
		openFromQuery();
	});

	if (debugCard) {
		debugCard.classList.toggle('qortal-hidden', !debugEnabled);
	}
	if (debugCard && debugEnabled) {
		const docked = window.localStorage && window.localStorage.getItem('qortal_qapps_debug_dock') === '1';
		debugCard.classList.toggle('qortal-debug-floating', !docked);
		if (debugFloat) {
			debugFloat.textContent = docked ? 'Float Panel' : 'Dock Panel';
			debugFloat.addEventListener('click', function () {
				const isFloating = debugCard.classList.contains('qortal-debug-floating');
				debugCard.classList.toggle('qortal-debug-floating', !isFloating);
				const nowDocked = isFloating;
				if (window.localStorage) {
					window.localStorage.setItem('qortal_qapps_debug_dock', nowDocked ? '1' : '0');
				}
				debugFloat.textContent = nowDocked ? 'Float Panel' : 'Dock Panel';
			});
		}
		if (debugMinimize) {
			debugMinimize.textContent = debugCard.classList.contains('qortal-debug-minimized') ? 'Expand' : 'Minimize';
			debugMinimize.addEventListener('click', function () {
				const isMinimized = debugCard.classList.toggle('qortal-debug-minimized');
				debugMinimize.textContent = isMinimized ? 'Expand' : 'Minimize';
			});
		}
	}
	if (debugCopy) {
		debugCopy.addEventListener('click', function () {
			if (!debugBody) return;
			const text = debugBody.textContent || '';
			if (!text) return;
			if (navigator.clipboard && navigator.clipboard.writeText) {
				navigator.clipboard.writeText(text).catch(function () {
					/* ignore */
				});
			}
		});
	}
	if (debugClear) {
		debugClear.addEventListener('click', function () {
			debugEntries.length = 0;
			if (debugBody) {
				debugBody.textContent = 'Debug panel enabled.';
			}
		});
	}

	window.addEventListener('resize', resizeViewerFrame);
	if (window.visualViewport) {
		window.visualViewport.addEventListener('resize', resizeViewerFrame);
	}

	function toggleMobileMenu() {
		setMobileMenuOpen(!root.classList.contains(mobileMenuClass), true);
	}

	setViewerOpen(Boolean(viewerCard && !viewerCard.classList.contains('qortal-hidden')));
	setMobileMenuOpen(root.classList.contains(mobileMenuClass), false);

	if (mobileMenuToggle) {
		mobileMenuToggle.addEventListener('click', toggleMobileMenu);
	}
	if (viewerMenuToggle) {
		viewerMenuToggle.addEventListener('click', toggleMobileMenu);
	}

	if (viewerAddressGo && viewerAddressInput) {
		viewerAddressGo.addEventListener('click', function () {
			const next = viewerAddressInput.value.trim();
			if (!next) {
				return;
			}
			openAddress(next, 'Qortal Browser');
		});
		viewerAddressInput.addEventListener('keydown', function (event) {
			if (event.key === 'Enter') {
				event.preventDefault();
				viewerAddressGo.click();
			}
		});
	}

	if (viewerFrame) {
		viewerFrame.addEventListener('load', async function () {
			syncViewerAddressFromFrame();
			if (!viewerCard || viewerCard.classList.contains('qortal-hidden')) {
				clearQdnLoadingRetry('viewer_hidden');
				return;
			}
			const detection = detectQdnLoadingInterstitial();
			if (!detection.inspectable) {
				clearQdnLoadingRetry('cross_origin_or_uninspectable');
				return;
			}
			if (detection.detected) {
				updateQdnLoadingProgress('DOWNLOADING', null, null, null, '');
				scheduleQdnLoadingRetry();
				return;
			}
			if (currentQdnResourceTarget) {
				const statusResult = await probeQdnResourceStatus(currentQdnResourceTarget);
				if (statusResult.ok && statusResult.status !== 'READY') {
					updateQdnLoadingProgress(
						statusResult.status,
						statusResult.percentLoaded,
						statusResult.localChunkCount,
						statusResult.totalChunkCount,
						statusResult.description
					);
					scheduleQdnLoadingRetry();
					return;
				}
				if (statusResult.ok && statusResult.status === 'READY') {
					const shouldForceRefresh =
						qdnLoadingRetryAttempts > 0
						|| (viewerLoadingOverlay && !viewerLoadingOverlay.classList.contains('qortal-hidden'));
					if (shouldForceRefresh) {
						logDebug('info', 'QDN status ready on frame load, forcing viewer refresh', {
							attempt: qdnLoadingRetryAttempts,
						});
						clearQdnLoadingRetry('status_ready_refresh');
						qdnLoadingRetryAttempts = 0;
						reloadViewerFrame();
						return;
					}
				}
			}
			clearQdnLoadingRetry('content_loaded');
			qdnLoadingRetryAttempts = 0;
		});
	}

	function originFromUrl(url) {
		try {
			return new URL(url).origin;
		} catch (error) {
			return '';
		}
	}

	const allowedOrigins = new Set();
	const gatewayOrigin = originFromUrl(gatewayUrl);
	if (gatewayOrigin) {
		allowedOrigins.add(gatewayOrigin);
	}
	allowedOrigins.add(window.location.origin);

	function buildBridgePayload(message) {
		if (!message || typeof message !== 'object') {
			return {};
		}
		if (message.payload && typeof message.payload === 'object') {
			return message.payload;
		}
		const copy = Object.assign({}, message);
		delete copy.action;
		delete copy.requestedHandler;
		delete copy.payload;
		delete copy.requestId;
		delete copy.isExtension;
		return copy;
	}

	function normalizeBridgePayload(requestType, payload) {
		if (!payload || typeof payload !== 'object') {
			return {};
		}
		const normalized = Object.assign({}, payload);
		const pickBase64Value = function (value) {
			if (!value || typeof value !== 'object') {
				return '';
			}
			if (typeof value.base64 === 'string' && value.base64.trim() !== '') {
				return value.base64;
			}
			if (typeof value.data64 === 'string' && value.data64.trim() !== '') {
				return value.data64;
			}
			return '';
		};
		const listActions = new Set(['GET_LIST_ITEMS', 'ADD_LIST_ITEMS', 'DELETE_LIST_ITEM']);
		if (listActions.has(requestType)) {
			if (
				(normalized.listName === undefined || normalized.listName === null || normalized.listName === '')
				&& normalized.list_name !== undefined
				&& normalized.list_name !== null
				&& normalized.list_name !== ''
			) {
				normalized.listName = normalized.list_name;
			}
		}
		if (requestType === 'PUBLISH_QDN_RESOURCE') {
			const payloadBase64 = pickBase64Value(normalized);
			if (
				(normalized.data === undefined || normalized.data === null || normalized.data === '')
				&& payloadBase64 !== ''
			) {
				normalized.data = payloadBase64;
			}
			if (
				(normalized.uploadType === undefined || normalized.uploadType === null || normalized.uploadType === '')
				&& payloadBase64 !== ''
			) {
				normalized.uploadType = 'base64';
			}
		}
		if (requestType === 'PUBLISH_MULTIPLE_QDN_RESOURCES' && Array.isArray(normalized.resources)) {
			normalized.resources = normalized.resources.map(function (resource) {
				if (!resource || typeof resource !== 'object') {
					return resource;
				}
				const resourceCopy = Object.assign({}, resource);
				const resourceBase64 = pickBase64Value(resourceCopy);
				if (
					(resourceCopy.data === undefined || resourceCopy.data === null || resourceCopy.data === '')
					&& resourceBase64 !== ''
				) {
					resourceCopy.data = resourceBase64;
				}
				if (
					(resourceCopy.uploadType === undefined || resourceCopy.uploadType === null || resourceCopy.uploadType === '')
					&& resourceBase64 !== ''
				) {
					resourceCopy.uploadType = 'base64';
				}
				return resourceCopy;
			});
		}
		const cryptoActions = new Set([
			'ENCRYPT_DATA',
			'DECRYPT_DATA',
			'ENCRYPT_QORTAL_GROUP_DATA',
			'DECRYPT_QORTAL_GROUP_DATA'
		]);
		if (cryptoActions.has(requestType)) {
			if (
				(normalized.data === undefined || normalized.data === null || normalized.data === '')
				&& typeof normalized.data64 === 'string'
				&& normalized.data64.trim() !== ''
			) {
				normalized.data = normalized.data64;
			}
			if (
				(normalized.encryptedData === undefined || normalized.encryptedData === null || normalized.encryptedData === '')
				&& typeof normalized.encryptedData64 === 'string'
				&& normalized.encryptedData64.trim() !== ''
			) {
				normalized.encryptedData = normalized.encryptedData64;
			}
		}
		return normalized;
	}

	function buildGatewayPath(payload) {
		if (!payload || typeof payload !== 'object') {
			return '';
		}
		const service = payload.service || payload.type || 'WEBSITE';
		const name = payload.name;
		if (!name) {
			return '';
		}
		let path = String(service).replace(/^\/+/, '') + '/' + String(name).replace(/^\/+/, '');
		if (payload.identifier) {
			path += '/' + String(payload.identifier).replace(/^\/+/, '');
		}
		if (payload.path) {
			const extra = String(payload.path);
			path += extra.startsWith('/') ? extra : '/' + extra;
		}
		return path;
	}

	function openGatewayPath(path) {
		if (!path) {
			return '';
		}
		const normalized = path.replace(/^\/+/, '');
		const upstreamPath = toUpstreamProxyPath(normalized, true);
		if (!viewerRendererConfigured) {
			return '';
		}
		if (gatewayProxyTemplate) {
			return buildProxyUrl(upstreamPath);
		}
		if (nodeUrl) {
			return nodeUrl.replace(/\/$/, '') + '/' + upstreamPath;
		}
		if (gatewayUrl) {
			return gatewayUrl.replace(/\/$/, '') + '/' + upstreamPath;
		}
		return '';
	}

	function postBridgeError(port, errorMessage) {
		if (!port) {
			return;
		}
		port.postMessage({
			result: null,
			error: {
				error: errorMessage,
				message: errorMessage,
			},
		});
	}

	function normalizeApprovalMode(mode) {
		const normalized = String(mode || '').trim();
		if (normalized === 'session') {
			return 'type_minutes';
		}
		if (normalized === 'scope') {
			return 'type_always';
		}
		if (normalized === 'app') {
			return 'app_always';
		}
		if (normalized === 'type_minutes' || normalized === 'type_always' || normalized === 'app_always') {
			return normalized;
		}
		return 'once';
	}

	function normalizeApprovalMinutes(value) {
		const parsed = Number(String(value || '').trim());
		if (!Number.isFinite(parsed)) {
			return defaultApprovalTempMinutes;
		}
		return Math.max(1, Math.min(Math.floor(parsed), 1440));
	}

	function upsertTemporaryApprovalRule(entry) {
		const normalizedRequestType = String(entry.requestType || '').trim();
		const normalizedScope = String(entry.scope || '').trim();
		const normalizedApp = String(entry.app || '').trim();
		if (!normalizedRequestType || !normalizedScope) {
			return;
		}
		const expiresAt = Number(entry.expiresAt || 0);
		if (!Number.isFinite(expiresAt) || expiresAt <= Date.now()) {
			return;
		}
		for (let i = temporaryApprovalRules.length - 1; i >= 0; i -= 1) {
			const candidate = temporaryApprovalRules[i];
			if (!candidate || candidate.expiresAt <= Date.now()) {
				temporaryApprovalRules.splice(i, 1);
				continue;
			}
			if (
				candidate.requestType === normalizedRequestType
				&& candidate.scope === normalizedScope
				&& candidate.app === normalizedApp
			) {
				candidate.expiresAt = expiresAt;
				return;
			}
		}
		temporaryApprovalRules.push({
			requestType: normalizedRequestType,
			scope: normalizedScope,
			app: normalizedApp,
			expiresAt,
		});
	}

	function findTemporaryApprovalRule(requestType, scope, app) {
		const normalizedRequestType = String(requestType || '').trim();
		const normalizedScope = String(scope || '').trim();
		const normalizedApp = String(app || '').trim();
		const now = Date.now();
		for (let i = temporaryApprovalRules.length - 1; i >= 0; i -= 1) {
			const candidate = temporaryApprovalRules[i];
			if (!candidate || candidate.expiresAt <= now) {
				temporaryApprovalRules.splice(i, 1);
				continue;
			}
			if (candidate.requestType !== normalizedRequestType) {
				continue;
			}
			if (candidate.scope !== normalizedScope) {
				continue;
			}
			if (candidate.app !== normalizedApp) {
				continue;
			}
			return candidate;
		}
		return null;
	}

	function approvalModeLabel(mode) {
		switch (normalizeApprovalMode(mode)) {
			case 'type_minutes':
				return 'Allow this request type for X minutes';
			case 'type_always':
				return 'Always allow this request type';
			case 'app_always':
				return 'Always allow all request types for this Q-App';
			default:
				return 'Allow only this request';
		}
	}

	function updateApprovalPolicyStatus(selectedMode) {
		if (!approvalPolicyStatusEl) {
			return;
		}
		approvalPolicyStatusEl.textContent =
			'Policy currently active in this tab: ' +
			approvalModeLabel(activeApprovalPolicyMode) +
			'. This request: ' +
			approvalModeLabel(selectedMode);
	}

	function markWalletLocked() {
		walletLockState.state = 'locked';
		walletLockState.expiresAt = null;
		if (approvalModal && !approvalModal.classList.contains('qortal-hidden')) {
			updateApprovalWalletStatus();
		}
	}

	function markWalletUnknown() {
		walletLockState.state = 'unknown';
		walletLockState.expiresAt = null;
		if (approvalModal && !approvalModal.classList.contains('qortal-hidden')) {
			updateApprovalWalletStatus();
		}
	}

	function markWalletUnlocked(ttlSeconds) {
		walletLockState.state = 'unlocked';
		if (typeof ttlSeconds === 'number' && Number.isFinite(ttlSeconds) && ttlSeconds > 0) {
			walletLockState.expiresAt = Date.now() + (ttlSeconds * 1000);
			if (approvalModal && !approvalModal.classList.contains('qortal-hidden')) {
				updateApprovalWalletStatus();
			}
			return;
		}
		walletLockState.expiresAt = null;
		if (approvalModal && !approvalModal.classList.contains('qortal-hidden')) {
			updateApprovalWalletStatus();
		}
	}

	function getWalletLockStatusPresentation() {
		if (walletLockState.state === 'locked') {
			return {
				text: 'Wallet lock: LOCKED (password required)',
				className: 'qortal-wallet-status-locked',
				showUnlockFields: true,
			};
		}
		if (walletLockState.state === 'unlocked') {
			if (walletLockState.expiresAt && walletLockState.expiresAt <= Date.now()) {
				walletLockState.state = 'locked';
				walletLockState.expiresAt = null;
				return {
					text: 'Wallet lock: LOCKED (previous unlock expired)',
					className: 'qortal-wallet-status-locked',
					showUnlockFields: true,
				};
			}
			if (walletLockState.expiresAt && walletLockState.expiresAt > Date.now()) {
				const remainingMinutes = Math.max(1, Math.ceil((walletLockState.expiresAt - Date.now()) / 60000));
				return {
					text: 'Wallet lock: UNLOCKED for about ' + remainingMinutes + ' min',
					className: 'qortal-wallet-status-ok',
					showUnlockFields: false,
				};
			}
			return {
				text: 'Wallet lock: UNLOCKED',
				className: 'qortal-wallet-status-ok',
				showUnlockFields: false,
			};
		}
		return {
			text: 'Wallet lock: unknown (password may be required)',
			className: 'qortal-wallet-status-unknown',
			showUnlockFields: false,
		};
	}

	function updateApprovalWalletStatus() {
		const status = getWalletLockStatusPresentation();
		if (approvalWalletStatusEl) {
			approvalWalletStatusEl.textContent = status.text;
			approvalWalletStatusEl.classList.remove(
				'qortal-wallet-status-ok',
				'qortal-wallet-status-locked',
				'qortal-wallet-status-unknown'
			);
			approvalWalletStatusEl.classList.add(status.className);
		}
		if (approvalUnlockFieldsEl) {
			approvalUnlockFieldsEl.classList.toggle('qortal-hidden', !status.showUnlockFields);
		}
		if (!status.showUnlockFields) {
			if (approvalPassword) {
				approvalPassword.value = '';
			}
			if (approvalTtl) {
				approvalTtl.checked = defaultApprovalUnlock10Min;
			}
		}
		return status;
	}

	function parseUnlockStatus(value) {
		let candidate = value;
		for (let i = 0; i < 4; i += 1) {
			if (!candidate || typeof candidate !== 'object' || candidate.data === undefined || candidate.data === null) {
				break;
			}
			if (typeof candidate.data !== 'object') {
				break;
			}
			candidate = candidate.data;
		}
		if (!candidate || typeof candidate !== 'object' || typeof candidate.unlocked !== 'boolean') {
			return null;
		}
		const unlocked = candidate.unlocked;
		const rawExpires = candidate.expiresAt !== undefined ? candidate.expiresAt : candidate.expires_at;
		let expiresAtMs = null;
		if (typeof rawExpires === 'number' && Number.isFinite(rawExpires)) {
			if (rawExpires > 0) {
				expiresAtMs = rawExpires < 10_000_000_000 ? rawExpires * 1000 : rawExpires;
			}
		} else if (typeof rawExpires === 'string' && rawExpires.trim() !== '') {
			const trimmed = rawExpires.trim();
			if (/^\d+$/.test(trimmed)) {
				const parsed = Number(trimmed);
				if (Number.isFinite(parsed) && parsed > 0) {
					expiresAtMs = parsed < 10_000_000_000 ? parsed * 1000 : parsed;
				}
			} else {
				const parsedDate = Date.parse(trimmed);
				if (!Number.isNaN(parsedDate) && parsedDate > 0) {
					expiresAtMs = parsedDate;
				}
			}
		}
		return { unlocked, expiresAtMs };
	}

	async function refreshWalletLockState(walletId) {
		const id = String(walletId || '').trim();
		if (!id || !qappsUnlockStatusUrl) {
			markWalletUnknown();
			return false;
		}
		const headers = {};
		if (typeof OC !== 'undefined' && OC.requestToken) {
			headers.requesttoken = OC.requestToken;
		}
		let response;
		try {
			const joiner = qappsUnlockStatusUrl.indexOf('?') === -1 ? '?' : '&';
			response = await fetch(
				qappsUnlockStatusUrl + joiner + 'walletId=' + encodeURIComponent(id),
				{ method: 'GET', headers }
			);
		} catch (error) {
			logDebug('warn', 'Wallet unlock status fetch failed', {
				walletId: id,
				error: error && error.message ? error.message : String(error),
			});
			markWalletUnknown();
			return false;
		}
		let payload = null;
		try {
			payload = await response.json();
		} catch (_error) {
			payload = null;
		}
		if (!response.ok || (payload && payload.error)) {
			logDebug('warn', 'Wallet unlock status request failed', {
				walletId: id,
				status: response.status,
				error: payload && payload.error ? payload.error : 'wallet_unlock_status_failed',
			});
			markWalletUnknown();
			return false;
		}
		const parsed = parseUnlockStatus(payload);
		if (!parsed) {
			markWalletUnknown();
			return false;
		}
		if (!parsed.unlocked) {
			markWalletLocked();
			return true;
		}
		if (parsed.expiresAtMs && parsed.expiresAtMs > Date.now()) {
			const ttlSeconds = Math.max(1, Math.floor((parsed.expiresAtMs - Date.now()) / 1000));
			markWalletUnlocked(ttlSeconds);
			return true;
		}
		markWalletUnlocked(undefined);
		return true;
	}

	function showApprovalError(message) {
		if (!approvalError) {
			return;
		}
		approvalError.textContent = message;
		approvalError.classList.toggle('qortal-hidden', !message);
	}

	function showUnlockError(message) {
		if (!unlockError) {
			return;
		}
		unlockError.textContent = message;
		unlockError.classList.toggle('qortal-hidden', !message);
	}

	function showApprovalModal(context) {
		return new Promise(function (resolve) {
			if (!approvalModal || !approvalConfirm || !approvalCancel) {
				resolve({ action: 'cancel' });
				return;
			}
			approvalContext = context || null;
			if (approvalAppEl) {
				approvalAppEl.textContent = (context && context.app) || currentQappAddress || 'Unknown';
			}
			if (approvalActionEl) {
				const normalizedScope = normalizeApprovalScope(
					context && context.scope ? context.scope : '',
					context && context.requestType ? context.requestType : ''
				);
				approvalActionEl.textContent = normalizedScope || (context && context.requestType) || 'Unknown';
			}
			if (approvalPassword) {
				approvalPassword.value = '';
			}
			if (approvalTtl) {
				approvalTtl.checked = defaultApprovalUnlock10Min;
			}
			const normalizedDefaultMode = normalizeApprovalMode(defaultApprovalMode);
			const defaultModeInput = document.querySelector(
				'input[name="qortal-approval-mode"][value="' + normalizedDefaultMode + '"]'
			);
			if (defaultModeInput) {
				defaultModeInput.checked = true;
			} else {
				const fallbackModeInput = document.querySelector('input[name="qortal-approval-mode"][value="once"]');
				if (fallbackModeInput) {
					fallbackModeInput.checked = true;
				}
			}
			if (approvalTempMinutesEl) {
				approvalTempMinutesEl.value = String(defaultApprovalTempMinutes);
			}
			const walletStatus = updateApprovalWalletStatus();
			updateApprovalPolicyStatus(normalizedDefaultMode);
			const modeInputs = document.querySelectorAll('input[name="qortal-approval-mode"]');
			modeInputs.forEach(function (input) {
				input.onchange = function () {
					const selectedMode = normalizeApprovalMode(input.value || 'once');
					updateApprovalPolicyStatus(selectedMode);
					if (approvalTempMinutesEl) {
						approvalTempMinutesEl.disabled = selectedMode !== 'type_minutes';
					}
				};
			});
			if (approvalTempMinutesEl) {
				approvalTempMinutesEl.disabled = normalizedDefaultMode !== 'type_minutes';
			}
			showApprovalError('');
			approvalModal.classList.remove('qortal-hidden');
			if (walletStatus.showUnlockFields && approvalPassword) {
				approvalPassword.focus();
				approvalPassword.onkeydown = function (event) {
					if (event.key !== 'Enter') {
						return;
					}
					event.preventDefault();
					if (approvalConfirm && !approvalConfirm.disabled) {
						approvalConfirm.click();
					}
				};
			} else if (approvalConfirm) {
				approvalConfirm.focus();
			}
			logDebug('info', 'Approval modal shown', { requestType: context && context.requestType, app: context && context.app });
			approvalConfirm.onclick = function () {
				const choice = document.querySelector('input[name="qortal-approval-mode"]:checked');
				const mode = normalizeApprovalMode(choice ? choice.value : 'once');
				const unlockFieldsVisible = approvalUnlockFieldsEl && !approvalUnlockFieldsEl.classList.contains('qortal-hidden');
				const passwordValue = approvalPassword ? approvalPassword.value.trim() : '';
				const ttlSeconds = unlockFieldsVisible && approvalTtl && approvalTtl.checked ? 600 : undefined;
				if (unlockFieldsVisible && !passwordValue) {
					showApprovalError('Wallet password is required because the wallet is locked.');
					return;
				}
				logDebug('info', 'Approval confirm clicked', { mode });
				resolve({
					action: mode,
					password: unlockFieldsVisible ? passwordValue : '',
					ttlSeconds,
					tempMinutes: normalizeApprovalMinutes(approvalTempMinutesEl ? approvalTempMinutesEl.value : defaultApprovalTempMinutes),
				});
			};
			approvalCancel.onclick = function () {
				logDebug('info', 'Approval cancelled');
				closeApprovalModal();
				resolve({ action: 'cancel' });
			};
		});
	}

	function showUnlockModal(context) {
		return new Promise(function (resolve) {
			if (!unlockModal || !unlockConfirm || !unlockCancel || !unlockPassword) {
				resolve({ action: 'cancel' });
				return;
			}
			if (unlockAppEl) {
				unlockAppEl.textContent = (context && context.app) || currentQappAddress || 'Unknown';
			}
			if (unlockActionEl) {
				unlockActionEl.textContent = (context && context.requestType) || 'Unknown';
			}
			unlockPassword.value = '';
			if (unlockSession) {
				unlockSession.checked = defaultUnlockSession20Min;
			}
			showUnlockError('');
			unlockModal.classList.remove('qortal-hidden');
			unlockPassword.focus();
			unlockPassword.onkeydown = function (event) {
				if (event.key !== 'Enter') {
					return;
				}
				event.preventDefault();
				if (unlockConfirm && !unlockConfirm.disabled) {
					unlockConfirm.click();
				}
			};
			unlockConfirm.onclick = function () {
				const password = unlockPassword.value.trim();
				if (!password) {
					showUnlockError('Wallet password is required.');
					return;
				}
				const ttlSeconds = unlockSession && unlockSession.checked ? 1200 : undefined;
				resolve({ action: 'unlock', password, ttlSeconds });
			};
			unlockCancel.onclick = function () {
				closeUnlockModal();
				resolve({ action: 'cancel' });
			};
		});
	}

	function closeApprovalModal() {
		if (!approvalModal) {
			return;
		}
		approvalModal.classList.add('qortal-hidden');
		approvalContext = null;
		showApprovalError('');
		if (approvalPassword) {
			approvalPassword.value = '';
			approvalPassword.onkeydown = null;
		}
		if (approvalTtl) {
			approvalTtl.checked = defaultApprovalUnlock10Min;
		}
		if (approvalTempMinutesEl) {
			approvalTempMinutesEl.value = String(defaultApprovalTempMinutes);
			approvalTempMinutesEl.disabled = false;
		}
		const modeInputs = document.querySelectorAll('input[name="qortal-approval-mode"]');
		modeInputs.forEach(function (input) {
			input.onchange = null;
		});
		if (approvalConfirm) {
			approvalConfirm.disabled = false;
			approvalConfirm.textContent = 'Approve';
		}
		if (approvalCancel) {
			approvalCancel.disabled = false;
		}
	}

	function closeUnlockModal() {
		if (!unlockModal) {
			return;
		}
		unlockModal.classList.add('qortal-hidden');
		showUnlockError('');
		if (unlockConfirm) {
			unlockConfirm.disabled = false;
			unlockConfirm.textContent = 'Unlock';
		}
		if (unlockCancel) {
			unlockCancel.disabled = false;
		}
		if (unlockPassword) {
			unlockPassword.value = '';
			unlockPassword.onkeydown = null;
		}
	}

	async function approveOnce(requestType, payload, context) {
		if (!qappsApproveUrl) {
			throw new Error('Approval endpoint is not configured');
		}
		const walletId = context && context.walletId ? context.walletId : currentWalletId;
		const scope = normalizeApprovalScope(context && context.scope ? context.scope : '', requestType);
		if (!walletId) {
			throw new Error('walletId is not linked');
		}
		if (!scope) {
			throw new Error('scope is missing');
		}
		const headers = { 'Content-Type': 'application/json' };
		if (typeof OC !== 'undefined' && OC.requestToken) {
			headers.requesttoken = OC.requestToken;
		}
		let response;
		try {
			response = await fetch(qappsApproveUrl, {
				method: 'POST',
				headers,
				body: JSON.stringify({
					walletId,
					scope,
					app: currentQappAddress,
					requestType,
				}),
			});
		} catch (error) {
			const message = error && error.message ? error.message : 'Failed to fetch';
			throw new Error(`approval_fetch_failed (${scope}): ${message}`);
		}
		const json = await response.json();
		if (!response.ok || json.ok === false || json.error) {
			throw new Error(json.error || 'approval_failed');
		}
		const token = json.data && json.data.approvalToken ? json.data.approvalToken : json.approvalToken;
		if (!token) {
			throw new Error('approval_token_missing');
		}
		return token;
	}

	async function runApprovedRequestWithFallbacks(requestType, payload, token, context, headers, decision, walletId) {
		const approvedScopes = new Set();
		const initialScope = normalizeApprovalScope(context && context.scope ? context.scope : '', requestType);
		if (initialScope) {
			approvedScopes.add(initialScope);
		}

		const runRequest = async function (approvalToken) {
			const retryPayload = Object.assign({}, payload, { approvalToken });
			const retryResponse = await fetch(qappsRequestUrl, {
				method: 'POST',
				headers,
				body: JSON.stringify({
					requestType,
					payload: retryPayload,
				}),
			});
			const retryJson = await retryResponse.json();
			return { retryResponse, retryJson };
		};

		let attempt = 0;
		while (attempt < 4) {
			const { retryResponse, retryJson } = await runRequest(token);
			if (!retryResponse.ok || retryJson.ok === false || retryJson.error) {
				const retryError = retryJson.error || 'approval_failed';
				logDebug('warn', 'Approval retry failed', { requestType, error: retryError });

				if (typeof retryError === 'string' && retryError.includes('wallet_locked')) {
					markWalletLocked();
					if (decision && decision.password) {
						await unlockWallet(walletId, decision.password, decision.ttlSeconds);
					} else {
						await ensureWalletUnlocked(walletId, requestType);
					}
					token = await approveOnce(requestType, payload, context);
					attempt += 1;
					continue;
				}

				if (typeof retryError === 'string' && retryError.includes('approval_required')) {
					const retryApprovalContext = extractApprovalContext(retryError, retryJson.details, requestType);
					const requiredScope = normalizeApprovalScope(retryApprovalContext.scope, requestType);
					if (requiredScope && !approvedScopes.has(requiredScope)) {
						logDebug('info', 'Supplemental approval required', { requestType, scope: requiredScope });
						token = await approveOnce(requestType, payload, {
							scope: requiredScope,
							walletId: retryApprovalContext.walletId || walletId,
						});
						approvedScopes.add(requiredScope);
						attempt += 1;
						continue;
					}
				}

				return { ok: false, error: retryError };
			}

			const retryResult = retryJson.data !== undefined ? retryJson.data : retryJson;
			return { ok: true, result: retryResult };
		}

		return { ok: false, error: 'approval_failed' };
	}

	async function setPermission(mode, requestType, scopeOverride, walletIdOverride) {
		if (!qappsPermissionsUrl) {
			throw new Error('Permissions endpoint is not configured');
		}
		const effectiveWalletId = walletIdOverride || currentWalletId;
		if (!effectiveWalletId) {
			throw new Error('walletId is not linked');
		}
		const normalizedMode = normalizeApprovalMode(mode);
		const modeValue = 'persistent';
		const contextScope = normalizeApprovalScope(
			scopeOverride || (approvalContext && approvalContext.scope ? approvalContext.scope : ''),
			requestType
		);
		const scopeValue = contextScope || fallbackApprovalScope(requestType);
		const headers = { 'Content-Type': 'application/json' };
		if (typeof OC !== 'undefined' && OC.requestToken) {
			headers.requesttoken = OC.requestToken;
		}

		async function postPermission(permissionPayload) {
			logDebug('info', 'Setting permission', {
				mode: permissionPayload.mode,
				scope: permissionPayload.scope,
				app: permissionPayload.app || '',
				requestType: permissionPayload.requestType || '',
			});
			let response;
			try {
				response = await fetch(qappsPermissionsUrl, {
					method: 'POST',
					headers,
					body: JSON.stringify(permissionPayload),
				});
			} catch (error) {
				const message = error && error.message ? error.message : 'Failed to fetch';
				throw new Error('permission_fetch_failed: ' + message);
			}
			const text = await response.text();
			let json = null;
			if (text) {
				try {
					json = JSON.parse(text);
				} catch (_error) {
					json = null;
				}
			}
			if (!response.ok) {
				const detail = json && json.error ? json.error : ('HTTP ' + response.status);
				throw new Error('permission_set_failed: ' + detail);
			}
			if (json && (json.ok === false || json.error)) {
				throw new Error(json.error || 'permission_set_failed');
			}
			return json || { ok: true };
		}

		if (normalizedMode === 'app_always') {
			if (!currentQappAddress) {
				throw new Error('app context is missing');
			}
			const appWidePayload = {
				walletId: effectiveWalletId,
				scope: currentQappAddress,
				mode: modeValue,
				app: currentQappAddress,
			};
			let appWideSet = false;
			let appWideError = null;
			try {
				await postPermission(appWidePayload);
				appWideSet = true;
			} catch (primaryError) {
				appWideError = primaryError;
				logDebug('warn', 'App-wide permission set failed, trying app+type fallback', {
					requestType,
					error: primaryError && primaryError.message ? primaryError.message : String(primaryError),
				});
			}
			// Compatibility: some external-auth versions accept app-wide permissions
			// but still enforce request scope checks. Also set app+scope when available.
			if (scopeValue) {
				const fallbackPayload = {
					walletId: effectiveWalletId,
					scope: scopeValue,
					mode: modeValue,
					app: currentQappAddress,
					...(requestType ? { requestType } : {}),
				};
				try {
					return await postPermission(fallbackPayload);
				} catch (fallbackError) {
					if (appWideSet) {
						logDebug('warn', 'App+scope permission set failed after app-wide success', {
							requestType,
							scope: scopeValue,
							error: fallbackError && fallbackError.message ? fallbackError.message : String(fallbackError),
						});
						return { ok: true };
					}
					throw fallbackError;
				}
			}
			if (appWideSet) {
				return { ok: true };
			}
			throw appWideError || new Error('scope is missing');
		}

		if (normalizedMode === 'type_always') {
			if (!scopeValue) {
				throw new Error('scope is missing');
			}
			return await postPermission({
				walletId: effectiveWalletId,
				scope: scopeValue,
				mode: modeValue,
				requestType,
			});
		}

		throw new Error('permission mode not supported');
	}

	async function runPermissionRequestWithFallbacks(mode, requestType, payload, headers, decision, walletId, context) {
		const grantedScopes = new Set();
		const initialScope = normalizeApprovalScope(context && context.scope ? context.scope : '', requestType);
		if (initialScope) {
			grantedScopes.add(initialScope);
		}

		let attempt = 0;
		while (attempt < 4) {
			const retryResponse = await fetch(qappsRequestUrl, {
				method: 'POST',
				headers,
				body: JSON.stringify({
					requestType,
					payload,
				}),
			});
			const retryJson = await retryResponse.json();
			if (!retryResponse.ok || retryJson.ok === false || retryJson.error) {
				const retryError = retryJson.error || 'approval_failed';
				logDebug('warn', 'Permission retry failed', { requestType, error: retryError });

				if (typeof retryError === 'string' && retryError.includes('wallet_locked')) {
					markWalletLocked();
					if (decision && decision.password) {
						await unlockWallet(walletId, decision.password, decision.ttlSeconds);
					} else {
						await ensureWalletUnlocked(walletId, requestType);
					}
					attempt += 1;
					continue;
				}

				if (typeof retryError === 'string' && retryError.includes('approval_required')) {
					const retryApprovalContext = extractApprovalContext(retryError, retryJson.details, requestType);
					const requiredScope = normalizeApprovalScope(retryApprovalContext.scope, requestType);
					if (requiredScope && !grantedScopes.has(requiredScope)) {
						await setPermission(mode, requestType, requiredScope, retryApprovalContext.walletId || walletId);
						grantedScopes.add(requiredScope);
						attempt += 1;
						continue;
					}
				}

				return { ok: false, error: retryError };
			}

			const retryResult = retryJson.data !== undefined ? retryJson.data : retryJson;
			return { ok: true, result: retryResult };
		}

		return { ok: false, error: 'approval_failed' };
	}

	async function tryTemporaryApproval(requestType, payload, approvalCtx, headers) {
		const walletId = approvalCtx && approvalCtx.walletId ? approvalCtx.walletId : currentWalletId;
		const scope = normalizeApprovalScope(approvalCtx && approvalCtx.scope ? approvalCtx.scope : '', requestType);
		if (!walletId || !scope || !currentQappAddress) {
			return null;
		}
		const activeRule = findTemporaryApprovalRule(requestType, scope, currentQappAddress);
		if (!activeRule) {
			return null;
		}
		logDebug('info', 'Applying temporary approval rule', {
			requestType,
			scope,
			app: currentQappAddress,
			expiresAt: activeRule.expiresAt,
		});
		try {
			const token = await approveOnce(requestType, payload, approvalCtx);
			const retryOutcome = await runApprovedRequestWithFallbacks(
				requestType,
				payload,
				token,
				approvalCtx,
				headers,
				{ action: 'type_minutes', password: '', ttlSeconds: undefined },
				walletId
			);
			return retryOutcome;
		} catch (error) {
			logDebug('warn', 'Temporary approval auto-flow failed', {
				requestType,
				error: error && error.message ? error.message : String(error),
			});
			return null;
		}
	}

	async function unlockWallet(walletId, password, ttlSeconds) {
		if (!qappsUnlockUrl) {
			throw new Error('Unlock endpoint is not configured');
		}
		const headers = { 'Content-Type': 'application/json' };
		if (typeof OC !== 'undefined' && OC.requestToken) {
			headers.requesttoken = OC.requestToken;
		}
		const response = await fetch(qappsUnlockUrl, {
			method: 'POST',
			headers,
			body: JSON.stringify({
				walletId,
				password,
				...(ttlSeconds ? { ttlSeconds } : {}),
			}),
		});
		const json = await response.json();
		if (!response.ok || json.ok === false || json.error) {
			markWalletLocked();
			throw new Error(json.error || 'wallet_unlock_failed');
		}
		markWalletUnlocked(typeof ttlSeconds === 'number' ? ttlSeconds : undefined);
		return json;
	}

	async function ensureWalletUnlocked(walletId, requestType) {
		const decision = await showUnlockModal({ requestType, app: currentQappAddress, walletId });
		if (decision.action === 'cancel') {
			throw new Error('wallet_locked');
		}
		if (unlockConfirm) {
			unlockConfirm.disabled = true;
			unlockConfirm.textContent = 'Unlocking...';
		}
		if (unlockCancel) {
			unlockCancel.disabled = true;
		}
		try {
			await unlockWallet(walletId, decision.password, decision.ttlSeconds);
			closeUnlockModal();
		} catch (unlockErr) {
			showUnlockError(unlockErr.message || 'wallet_unlock_failed');
			if (unlockConfirm) {
				unlockConfirm.disabled = false;
				unlockConfirm.textContent = 'Unlock';
			}
			if (unlockCancel) {
				unlockCancel.disabled = false;
			}
			throw unlockErr;
		}
	}

	function extractApprovalContext(errorMessage, details, requestType) {
		const context = {
			scope: '',
			walletId: '',
		};

		function captureFromValue(value, depth) {
			if (depth > 3 || value === null || value === undefined) {
				return;
			}
			if (typeof value === 'string') {
				if (!context.scope) {
					const scopeMatch = value.match(/"scope"\s*:\s*"([^"]+)"/);
					if (scopeMatch && scopeMatch[1]) {
						context.scope = scopeMatch[1];
					}
				}
				if (!context.walletId) {
					const walletMatch = value.match(/"walletId"\s*:\s*"([^"]+)"/);
					if (walletMatch && walletMatch[1]) {
						context.walletId = walletMatch[1];
					}
				}
				const jsonStart = value.indexOf('{');
				const jsonEnd = value.lastIndexOf('}');
				if (jsonStart !== -1 && jsonEnd !== -1 && jsonEnd > jsonStart) {
					try {
						const parsed = JSON.parse(value.slice(jsonStart, jsonEnd + 1));
						captureFromValue(parsed, depth + 1);
					} catch (_err) {
						// ignore parse errors
					}
				}
				return;
			}
			if (typeof value !== 'object') {
				return;
			}
			if (!context.scope && typeof value.scope === 'string') {
				context.scope = value.scope;
			}
			if (!context.walletId && typeof value.walletId === 'string') {
				context.walletId = value.walletId;
			}
			if (value.detail !== undefined) {
				captureFromValue(value.detail, depth + 1);
			}
			if (value.data !== undefined) {
				captureFromValue(value.data, depth + 1);
			}
			if (value.error !== undefined) {
				captureFromValue(value.error, depth + 1);
			}
		}

		captureFromValue(details, 0);
		captureFromValue(errorMessage, 0);

		context.scope = normalizeApprovalScope(context.scope, requestType);
		if (!context.walletId) {
			context.walletId = currentWalletId || '';
		}
		return context;
	}

	function isWalletLockedError(errorMessage, details) {
		if (typeof errorMessage === 'string' && errorMessage.includes('wallet_locked')) {
			return true;
		}
		const detail = details && details.data && details.data.detail ? details.data.detail : null;
		if (detail && typeof detail === 'object' && detail.error === 'wallet_locked') {
			return true;
		}
		if (details && typeof details === 'object' && details.error === 'wallet_locked') {
			return true;
		}
		return false;
	}

	window.addEventListener('message', async function (event) {
		const message = event && event.data ? event.data : null;
		if (!message || typeof message.action !== 'string') {
			return;
		}
		const hasPort = Boolean(event && event.ports && event.ports[0]);
		if (viewerFrame && event.source && viewerFrame.contentWindow && event.source !== viewerFrame.contentWindow) {
			logDebug('warn', 'Ignored message from unknown source', { action: message.action });
			return;
		}
		if (event.origin && !allowedOrigins.has(event.origin)) {
			logDebug('warn', 'Ignored message from disallowed origin', { origin: event.origin, action: message.action });
			return;
		}

		const requestType = message.action;
		const payload = normalizeBridgePayload(requestType, buildBridgePayload(message));

		if (requestType === 'SET_TAB' && message.requestedHandler === 'UI') {
			const path = buildGatewayPath(payload);
			const url = openGatewayPath(path);
			if (url) {
				logDebug('info', 'SET_TAB opening', { path, url });
				window.open(url, '_blank', 'noopener');
			}
			if (event.source && typeof event.source.postMessage === 'function') {
				event.source.postMessage(
					{
						action: 'SET_TAB_SUCCESS',
						requestedHandler: 'UI',
						payload: {
							name: payload.name,
						},
					},
					event.origin || '*'
				);
			}
			return;
		}

		if (!hasPort && requestType === 'SET_TAB_SUCCESS') {
			return;
		}

		if (!hasPort) {
			if (requestType === 'NAVIGATION_HISTORY') {
				const addressFromPayload = getNavigationAddressFromPayload(payload);
				if (addressFromPayload) {
					setViewerAddressDisplay(addressFromPayload);
					logDebug('info', 'Navigation history update (no port)', { requestType, address: addressFromPayload });
				} else {
					const frameAddress = syncViewerAddressFromFrame();
					logDebug('info', 'Navigation history update (no port)', frameAddress ? { requestType, address: frameAddress } : { requestType });
				}
				return;
			}
			logDebug('warn', 'Missing message port', { requestType });
			return;
		}

		const port = event.ports[0];
		if (!requestType) {
			postBridgeError(port, 'requestType is required');
			return;
		}
		if (requestType === 'QDN_RESOURCE_DISPLAYED') {
			port.postMessage({ result: true, error: null });
			return;
		}
		if (requestType === 'LINK_TO_QDN_RESOURCE') {
			const path = buildGatewayPath(payload);
			const url = openGatewayPath(path);
			if (url) {
				logDebug('info', 'LINK_TO_QDN_RESOURCE opening', { path, url });
				window.open(url, '_blank', 'noopener');
			}
			port.postMessage({ result: true, error: null });
			return;
		}
		if (requestType === 'OPEN_NEW_TAB') {
			const qortalLink =
				(typeof payload.qortalLink === 'string' && payload.qortalLink.trim()) ||
				(typeof payload.link === 'string' && payload.link.trim()) ||
				(typeof payload.url === 'string' && payload.url.trim()) ||
				(typeof payload.href === 'string' && payload.href.trim()) ||
				'';
			if (!qortalLink) {
				postBridgeError(port, 'qortalLink is required');
				return;
			}
			logDebug('info', 'OPEN_NEW_TAB routed to integrated viewer', { qortalLink });
			openAddress(qortalLink, 'Qortal Browser');
			port.postMessage({ result: true, error: null });
			return;
		}

		try {
			const gatewayResult = await handleGatewayRequest(requestType, payload);
			if (gatewayResult.handled) {
				if (gatewayResult.error) {
					logDebug('error', 'Gateway request failed', { requestType, error: gatewayResult.error });
					postBridgeError(port, gatewayResult.error);
				} else {
					logDebug('info', 'Gateway request handled', { requestType, result: gatewayResult.data });
					port.postMessage({ result: gatewayResult.data, error: null });
				}
				return;
			}

			if (!qappsRequestUrl) {
				logDebug('error', 'Q-Apps request URL missing', { requestType });
				postBridgeError(port, 'Q-Apps request endpoint is not configured');
				return;
			}
			const headers = { 'Content-Type': 'application/json' };
			if (typeof OC !== 'undefined' && OC.requestToken) {
				headers.requesttoken = OC.requestToken;
			}
			logDebug('info', 'Broker qortalRequest start', { requestType, payload });
			const response = await fetch(qappsRequestUrl, {
				method: 'POST',
				headers,
				body: JSON.stringify({
					requestType,
					payload,
				}),
			});
			const json = await response.json();
			if (!response.ok || json.ok === false || json.error) {
				const errorMessage = json.error || 'qortal_request_failed';
				const approvalContext = extractApprovalContext(errorMessage, json.details, requestType);
				if (isWalletLockedError(errorMessage, json.details)) {
					markWalletLocked();
					const walletId = approvalContext.walletId || payload.walletId || currentWalletId;
					logDebug('info', 'Wallet locked', { requestType, walletId });
					const decision = await showUnlockModal({ requestType, app: currentQappAddress, walletId });
					if (decision.action === 'cancel') {
						postBridgeError(port, 'wallet_locked');
						closeUnlockModal();
						return;
					}
					if (unlockConfirm) {
						unlockConfirm.disabled = true;
						unlockConfirm.textContent = 'Unlocking...';
					}
					if (unlockCancel) {
						unlockCancel.disabled = true;
					}
					try {
						await unlockWallet(walletId, decision.password, decision.ttlSeconds);
						const retryResponse = await fetch(qappsRequestUrl, {
							method: 'POST',
							headers,
							body: JSON.stringify({
								requestType,
								payload,
							}),
						});
						const retryJson = await retryResponse.json();
						if (!retryResponse.ok || retryJson.ok === false || retryJson.error) {
							const retryError = retryJson.error || 'qortal_request_failed';
							if (typeof retryError === 'string' && retryError.includes('approval_required')) {
								const retryApprovalContext = extractApprovalContext(retryError, retryJson.details, requestType);
								logDebug('info', 'Approval required after unlock', { requestType });
								const temporaryOutcome = await tryTemporaryApproval(
									requestType,
									payload,
									retryApprovalContext,
									headers
								);
								if (temporaryOutcome && temporaryOutcome.ok) {
									logDebug('info', 'Broker qortalRequest ok', { requestType, result: temporaryOutcome.result });
									activeApprovalPolicyMode = 'type_minutes';
									port.postMessage({ result: temporaryOutcome.result, error: null });
									closeUnlockModal();
									return;
								}
								closeUnlockModal();
								await refreshWalletLockState(retryApprovalContext.walletId || currentWalletId);
								const decisionAfterUnlock = await showApprovalModal({
									requestType,
									payload,
									app: currentQappAddress,
									scope: retryApprovalContext.scope,
									walletId: retryApprovalContext.walletId,
								});
								if (decisionAfterUnlock.action === 'cancel') {
									postBridgeError(port, 'approval_cancelled');
									closeApprovalModal();
									return;
								}
								if (approvalConfirm) {
									approvalConfirm.disabled = true;
									approvalConfirm.textContent = 'Approving...';
								}
								if (approvalCancel) {
									approvalCancel.disabled = true;
								}
									try {
										if (decisionAfterUnlock.action === 'once' || decisionAfterUnlock.action === 'type_minutes') {
											if (decisionAfterUnlock.action === 'type_minutes') {
												const temporaryScope = normalizeApprovalScope(retryApprovalContext.scope, requestType);
												upsertTemporaryApprovalRule({
													requestType,
													scope: temporaryScope,
													app: currentQappAddress,
													expiresAt: Date.now() + (decisionAfterUnlock.tempMinutes * 60 * 1000),
												});
											}
											const token = await approveOnce(requestType, payload, retryApprovalContext);
											const retryOutcome = await runApprovedRequestWithFallbacks(
												requestType,
												payload,
												token,
												retryApprovalContext,
												headers,
												decisionAfterUnlock,
												retryApprovalContext.walletId || currentWalletId
											);
											if (!retryOutcome.ok) {
												showApprovalError(retryOutcome.error || 'approval_failed');
												postBridgeError(port, retryOutcome.error || 'qortal_request_failed');
												closeApprovalModal();
												return;
											}
											logDebug('info', 'Broker qortalRequest ok', { requestType, result: retryOutcome.result });
											if (decisionAfterUnlock.action === 'type_minutes') {
												activeApprovalPolicyMode = 'type_minutes';
											}
											port.postMessage({ result: retryOutcome.result, error: null });
											closeApprovalModal();
											return;
										}
										if (
											decisionAfterUnlock.action === 'type_always' ||
											decisionAfterUnlock.action === 'app_always'
										) {
											const walletIdAfterUnlock = retryApprovalContext.walletId || currentWalletId;
											await setPermission(decisionAfterUnlock.action, requestType, retryApprovalContext.scope, walletIdAfterUnlock);
											const permissionOutcome = await runPermissionRequestWithFallbacks(
												decisionAfterUnlock.action,
												requestType,
												payload,
												headers,
												decisionAfterUnlock,
												walletIdAfterUnlock,
												retryApprovalContext
											);
											if (!permissionOutcome.ok) {
												showApprovalError(permissionOutcome.error || 'approval_failed');
												postBridgeError(port, permissionOutcome.error || 'qortal_request_failed');
												closeApprovalModal();
												return;
											}
											activeApprovalPolicyMode = decisionAfterUnlock.action;
											logDebug('info', 'Broker qortalRequest ok', { requestType, result: permissionOutcome.result });
											port.postMessage({ result: permissionOutcome.result, error: null });
											closeApprovalModal();
											return;
										}
								} finally {
									if (approvalConfirm) {
										approvalConfirm.disabled = false;
										approvalConfirm.textContent = 'Approve';
									}
									if (approvalCancel) {
										approvalCancel.disabled = false;
									}
								}
							}
								showUnlockError(retryError || 'wallet_unlock_failed');
								postBridgeError(port, retryError || 'wallet_unlock_failed');
								closeUnlockModal();
								return;
							}
						const retryResult = retryJson.data !== undefined ? retryJson.data : retryJson;
						logDebug('info', 'Broker qortalRequest ok', { requestType, result: retryResult });
						port.postMessage({ result: retryResult, error: null });
						closeUnlockModal();
						return;
					} catch (unlockErr) {
						showUnlockError(unlockErr.message || 'wallet_unlock_failed');
						logDebug('error', 'Wallet unlock failed', { requestType, error: unlockErr.message || 'wallet_unlock_failed' });
						postBridgeError(port, unlockErr.message || 'wallet_unlock_failed');
						if (unlockConfirm) {
							unlockConfirm.disabled = false;
							unlockConfirm.textContent = 'Unlock';
						}
						if (unlockCancel) {
							unlockCancel.disabled = false;
						}
						closeUnlockModal();
						return;
					}
				}
				if (typeof errorMessage === 'string' && errorMessage.includes('approval_required')) {
					logDebug('info', 'Approval required', { requestType, context: approvalContext });
					const temporaryOutcome = await tryTemporaryApproval(requestType, payload, approvalContext, headers);
					if (temporaryOutcome && temporaryOutcome.ok) {
						logDebug('info', 'Broker qortalRequest ok', { requestType, result: temporaryOutcome.result });
						activeApprovalPolicyMode = 'type_minutes';
						port.postMessage({ result: temporaryOutcome.result, error: null });
						return;
					}
					await refreshWalletLockState(approvalContext.walletId || currentWalletId);
					const decision = await showApprovalModal({
						requestType,
						payload,
						app: currentQappAddress,
						scope: approvalContext.scope,
						walletId: approvalContext.walletId,
					});
					if (decision.action === 'cancel') {
						postBridgeError(port, 'approval_cancelled');
						closeApprovalModal();
						return;
					}
					if (approvalConfirm) {
						approvalConfirm.disabled = true;
						approvalConfirm.textContent = 'Approving...';
					}
					if (approvalCancel) {
						approvalCancel.disabled = true;
					}
					try {
						const walletId = approvalContext.walletId || currentWalletId;
						if (decision.password) {
							await unlockWallet(walletId, decision.password, decision.ttlSeconds);
						}
						if (decision.action === 'once' || decision.action === 'type_minutes') {
							if (decision.action === 'type_minutes') {
								const temporaryScope = normalizeApprovalScope(approvalContext.scope, requestType);
								upsertTemporaryApprovalRule({
									requestType,
									scope: temporaryScope,
									app: currentQappAddress,
									expiresAt: Date.now() + (decision.tempMinutes * 60 * 1000),
								});
							}
							let token;
							try {
								token = await approveOnce(requestType, payload, approvalContext);
							} catch (error) {
								const msg = error && error.message ? error.message : String(error || 'approval_failed');
								if (msg.includes('wallet_locked')) {
									markWalletLocked();
									if (decision.password) {
										await unlockWallet(walletId, decision.password, decision.ttlSeconds);
									} else {
										await ensureWalletUnlocked(walletId, requestType);
									}
									token = await approveOnce(requestType, payload, approvalContext);
								} else {
									throw error;
								}
							}
							const retryOutcome = await runApprovedRequestWithFallbacks(
								requestType,
								payload,
								token,
								approvalContext,
								headers,
								decision,
								walletId
							);
							if (!retryOutcome.ok) {
								showApprovalError(retryOutcome.error || 'approval_failed');
								postBridgeError(port, retryOutcome.error || 'qortal_request_failed');
								if (approvalConfirm) {
									approvalConfirm.disabled = false;
									approvalConfirm.textContent = 'Approve';
								}
								if (approvalCancel) {
									approvalCancel.disabled = false;
								}
								closeApprovalModal();
								return;
							}
							logDebug('info', 'Broker qortalRequest ok', { requestType, result: retryOutcome.result });
							if (decision.action === 'type_minutes') {
								activeApprovalPolicyMode = 'type_minutes';
							}
							port.postMessage({ result: retryOutcome.result, error: null });
							closeApprovalModal();
							return;
						}
							if (decision.action === 'type_always' || decision.action === 'app_always') {
								try {
									await setPermission(decision.action, requestType, approvalContext.scope, walletId);
								} catch (error) {
									const msg = error && error.message ? error.message : String(error || 'permission_set_failed');
									if (msg.includes('wallet_locked')) {
										markWalletLocked();
										if (decision.password) {
											await unlockWallet(walletId, decision.password, decision.ttlSeconds);
										} else {
											await ensureWalletUnlocked(walletId, requestType);
										}
										await setPermission(decision.action, requestType, approvalContext.scope, walletId);
									} else {
										throw error;
									}
								}
								const permissionOutcome = await runPermissionRequestWithFallbacks(
									decision.action,
									requestType,
									payload,
									headers,
									decision,
									walletId,
									approvalContext
								);
									if (!permissionOutcome.ok) {
										showApprovalError(permissionOutcome.error || 'approval_failed');
										postBridgeError(port, permissionOutcome.error || 'qortal_request_failed');
										closeApprovalModal();
										return;
									}
									activeApprovalPolicyMode = decision.action;
									logDebug('info', 'Broker qortalRequest ok', { requestType, result: permissionOutcome.result });
									port.postMessage({ result: permissionOutcome.result, error: null });
									closeApprovalModal();
									return;
							}
						} catch (approvalError) {
							showApprovalError(approvalError.message || 'approval_failed');
							logDebug('error', 'Approval failed', { requestType, error: approvalError.message || 'approval_failed' });
							postBridgeError(port, approvalError.message || 'approval_failed');
							if (approvalConfirm) {
								approvalConfirm.disabled = false;
								approvalConfirm.textContent = 'Approve';
							}
							if (approvalCancel) {
								approvalCancel.disabled = false;
							}
							closeApprovalModal();
							return;
						}
				}
				logDebug('error', 'Broker qortalRequest failed', { requestType, error: json.error || 'qortal_request_failed' });
				postBridgeError(port, json.error || 'qortal_request_failed');
				return;
			}
			let resultPayload = json.data !== undefined ? json.data : json;
			if (requestType === 'GET_PRIMARY_NAME' && typeof resultPayload !== 'string') {
				if (Array.isArray(resultPayload)) {
					resultPayload = resultPayload.length > 0 ? resultPayload[0] : '';
				} else if (resultPayload && typeof resultPayload === 'object') {
					resultPayload =
						resultPayload.name ||
						resultPayload.primaryName ||
						(resultPayload.data && resultPayload.data.name) ||
						'';
				} else if (resultPayload === null || resultPayload === undefined) {
					resultPayload = '';
				}
			}
			logDebug('info', 'Broker qortalRequest ok', { requestType, result: resultPayload });
			port.postMessage({ result: resultPayload, error: null });
		} catch (error) {
			logDebug('error', 'qortalRequest exception', { requestType, error: error.message || 'qortal_request_failed' });
			postBridgeError(port, error.message || 'qortal_request_failed');
		}
	});

	function appendQuery(params, key, value) {
		if (value === undefined || value === null || value === '') {
			return;
		}
		if (Array.isArray(value)) {
			value.forEach(function (item) {
				appendQuery(params, key, item);
			});
			return;
		}
		const normalized = typeof value === 'boolean' ? String(Boolean(value)) : String(value);
		params.append(key, normalized);
	}

	function buildGatewayApiUrl(path, params) {
		const base = openGatewayPath(path);
		if (!base) {
			return '';
		}
		if (!params) {
			return base;
		}
		const qs = params.toString();
		if (!qs) {
			return base;
		}
		return base + (base.includes('?') ? '&' : '?') + qs;
	}

	function parseGatewayResponse(text) {
		if (text === '') {
			return null;
		}
		try {
			return JSON.parse(text);
		} catch (error) {
			return text;
		}
	}

	async function fetchGateway(url) {
		logDebug('info', 'Gateway fetch', { url });
		const response = await fetch(url, {
			method: 'GET',
			headers: {
				Accept: 'application/json,text/plain,*/*',
			},
		});
		const text = await response.text();
		const parsed = parseGatewayResponse(text);
		if (!response.ok) {
			const message = parsed && parsed.error ? parsed.error : 'gateway_request_failed';
			logDebug('error', 'Gateway fetch failed', { url, status: response.status, message });
			throw new Error(message);
		}
		logDebug('info', 'Gateway fetch ok', { url, status: response.status });
		return parsed;
	}

	async function handleGatewayRequest(requestType, payload) {
		const params = new URLSearchParams();
		let path = '';
		switch (requestType) {
			case 'IS_USING_PUBLIC_NODE':
				return { handled: true, data: false };
			case 'GET_ACCOUNT_DATA':
				if (!payload.address) return { handled: true, error: 'address is required' };
				path = `addresses/${payload.address}`;
				break;
			case 'GET_ACCOUNT_NAMES':
				if (!payload.address) return { handled: true, error: 'address is required' };
				path = `names/address/${payload.address}`;
				break;
			case 'SEARCH_NAMES':
				path = 'names/search';
				appendQuery(params, 'query', payload.query);
				appendQuery(params, 'prefix', payload.prefix);
				appendQuery(params, 'limit', payload.limit);
				appendQuery(params, 'offset', payload.offset);
				appendQuery(params, 'reverse', payload.reverse);
				break;
			case 'GET_NAME_DATA':
				if (!payload.name) return { handled: true, error: 'name is required' };
				path = `names/${payload.name}`;
				break;
			case 'LIST_QDN_RESOURCES':
				path = 'arbitrary/resources';
				appendQuery(params, 'service', payload.service);
				appendQuery(params, 'name', payload.name);
				appendQuery(params, 'identifier', payload.identifier);
				appendQuery(params, 'default', payload.default);
				appendQuery(params, 'includestatus', payload.includeStatus);
				appendQuery(params, 'includemetadata', payload.includeMetadata);
				appendQuery(params, 'namefilter', payload.nameListFilter);
				appendQuery(params, 'followedonly', payload.followedOnly);
				appendQuery(params, 'excludeblocked', payload.excludeBlocked);
				appendQuery(params, 'limit', payload.limit);
				appendQuery(params, 'offset', payload.offset);
				appendQuery(params, 'reverse', payload.reverse);
				break;
			case 'SEARCH_QDN_RESOURCES':
				path = 'arbitrary/resources/search';
				appendQuery(params, 'service', payload.service);
				appendQuery(params, 'query', payload.query);
				appendQuery(params, 'identifier', payload.identifier);
				appendQuery(params, 'name', payload.name);
				appendQuery(params, 'name', payload.names);
				appendQuery(params, 'keywords', payload.keywords);
				appendQuery(params, 'title', payload.title);
				appendQuery(params, 'description', payload.description);
				appendQuery(params, 'prefix', payload.prefix);
				appendQuery(params, 'exactmatchnames', payload.exactMatchNames);
				appendQuery(params, 'default', payload.default);
				appendQuery(params, 'mode', payload.mode);
				appendQuery(params, 'minlevel', payload.minLevel);
				appendQuery(params, 'includestatus', payload.includeStatus);
				appendQuery(params, 'includemetadata', payload.includeMetadata);
				appendQuery(params, 'namefilter', payload.nameListFilter);
				appendQuery(params, 'followedonly', payload.followedOnly);
				appendQuery(params, 'excludeblocked', payload.excludeBlocked);
				appendQuery(params, 'before', payload.before);
				appendQuery(params, 'after', payload.after);
				appendQuery(params, 'limit', payload.limit);
				appendQuery(params, 'offset', payload.offset);
				appendQuery(params, 'reverse', payload.reverse);
				break;
			case 'FETCH_QDN_RESOURCE':
				if (!payload.service || !payload.name) return { handled: true, error: 'service and name are required' };
				path = `arbitrary/${payload.service}/${payload.name}`;
				if (payload.identifier) {
					path += `/${payload.identifier}`;
				}
				appendQuery(params, 'filepath', payload.filepath);
				appendQuery(params, 'rebuild', payload.rebuild);
				appendQuery(params, 'encoding', payload.encoding);
				break;
			case 'GET_QDN_RESOURCE_STATUS':
				if (!payload.service || !payload.name) return { handled: true, error: 'service and name are required' };
				path = `arbitrary/resource/status/${payload.service}/${payload.name}`;
				if (payload.identifier) {
					path += `/${payload.identifier}`;
				}
				appendQuery(params, 'build', payload.build);
				break;
			case 'GET_QDN_RESOURCE_METADATA':
				if (!payload.service || !payload.name) return { handled: true, error: 'service and name are required' };
				path = `arbitrary/metadata/${payload.service}/${payload.name}/${payload.identifier || 'default'}`;
				break;
			case 'GET_QDN_RESOURCE_PROPERTIES':
				if (!payload.service || !payload.name) return { handled: true, error: 'service and name are required' };
				path = `arbitrary/resource/properties/${payload.service}/${payload.name}/${payload.identifier || 'default'}`;
				break;
			case 'GET_QDN_RESOURCE_URL':
				if (!payload.service || !payload.name) return { handled: true, error: 'service and name are required' };
				path = `arbitrary/resource/status/${payload.service}/${payload.name}`;
				if (payload.identifier) {
					path += `/${payload.identifier}`;
				}
				appendQuery(params, 'build', payload.build);
				{
					const statusUrl = buildGatewayApiUrl(path, params);
					if (!statusUrl) return { handled: true, error: 'Gateway URL is not configured' };
					const status = await fetchGateway(statusUrl);
					const parsedStatus = parseQdnStatusPayload(status);
					const statusCode = parsedStatus ? parsedStatus.status : '';
					const totalChunkCount = parsedStatus
						? parsedStatus.totalChunkCount
						: coerceFiniteNumber(status && status.totalChunkCount);
					if (
						!status
						|| statusCode === 'NOT_PUBLISHED'
						|| statusCode === 'UNSUPPORTED'
						|| statusCode === 'BLOCKED'
						|| (!statusCode && totalChunkCount !== null && totalChunkCount <= 0)
					) {
						return { handled: true, error: 'Resource does not exist' };
					}
						const resourcePath = `${payload.service}/${payload.name}`
							+ (payload.identifier ? `/${payload.identifier}` : '')
							+ (payload.path ? `/${String(payload.path).replace(/^\/+/, '')}` : '');
					const url = openGatewayPath(resourcePath);
					return { handled: true, data: url };
				}
			default:
				return { handled: false };
		}

		const url = buildGatewayApiUrl(path, params);
		if (!url) {
			return { handled: true, error: 'Gateway URL is not configured' };
		}
		const data = await fetchGateway(url);
		return { handled: true, data };
	}
})();