import type { OperationContext, OperationOptions } from '@commerce/api/operations';
import type { GetAllPagesOperation, Page } from '@commerce/types/page';
import { requireConfigValue } from '../../isomorphic-config';
import normalizePage from '../../utils/normalizations/normalize-page';
import type { IPages } from '@spree/storefront-api-v2-sdk/types/interfaces/Page';
import type { SpreeSdkVariables } from '../../types';
import type { SpreeApiConfig, SpreeApiProvider } from '../index';

export default function getAllPagesOperation({ commerce }: OperationContext<SpreeApiProvider>) {
  async function getAllPages<T extends GetAllPagesOperation>(options?: {
    config?: Partial<SpreeApiConfig>;
    preview?: boolean;
  }): Promise<T['data']>;

  async function getAllPages<T extends GetAllPagesOperation>(
    opts: {
      config?: Partial<SpreeApiConfig>;
      preview?: boolean;
    } & OperationOptions
  ): Promise<T['data']>;

  async function getAllPages<T extends GetAllPagesOperation>({
    config: userConfig,
    preview,
    query,
    url
  }: {
    url?: string;
    config?: Partial<SpreeApiConfig>;
    preview?: boolean;
    query?: string;
  } = {}): Promise<T['data']> {
    console.info(
      'getAllPages called. Configuration: ',
      'query: ',
      query,
      'userConfig: ',
      userConfig,
      'preview: ',
      preview,
      'url: ',
      url
    );

    const config = commerce.getConfig(userConfig);
    const { fetch: apiFetch } = config;

    const variables: SpreeSdkVariables = {
      methodPath: 'pages.list',
      arguments: [
        {
          per_page: 500,
          filter: {
            locale_eq: config.locale || (requireConfigValue('defaultLocale') as string)
          }
        }
      ]
    };

    const { data: spreeSuccessResponse } = await apiFetch<IPages, SpreeSdkVariables>('__UNUSED__', {
      variables
    });

    const normalizedPages: Page[] = spreeSuccessResponse.data.map<Page>((spreePage) =>
      normalizePage(spreeSuccessResponse, spreePage, config.locales || [])
    );

    return { pages: normalizedPages };
  }

  return getAllPages;
}