import { useCallback } from 'react';
import { resourceDownloadControllerAtom } from '../atoms/global';
import { getBaseApiReact } from '../App';
import { useSetAtom } from 'jotai';

export const useFetchResources = () => {
  const setResources = useSetAtom(resourceDownloadControllerAtom);

  const downloadResource = useCallback(
    ({ service, name, identifier }, build) => {
      setResources((prev) => ({
        ...prev,
        [`${service}-${name}-${identifier}`]: {
          ...(prev[`${service}-${name}-${identifier}`] || {}),
          service,
          name,
          identifier,
        },
      }));

      try {
        let isCalling = false;
        let percentLoaded = 0;
        let timer = 24;
        let tries = 0;
        let calledFirstTime = false;
        let intervalId;
        let timeoutId;
        const callFunction = async () => {
          if (isCalling) return;
          isCalling = true;

          let res;

          if (!build) {
            const urlFirstTime = `${getBaseApiReact()}/arbitrary/resource/status/${service}/${name}/${identifier}`;
            const resCall = await fetch(urlFirstTime, {
              method: 'GET',
              headers: {
                'Content-Type': 'application/json',
              },
            });
            res = await resCall.json();
            if (tries > 18) {
              if (intervalId) {
                clearInterval(intervalId);
              }
              if (timeoutId) {
                clearTimeout(timeoutId);
              }
              setResources((prev) => ({
                ...prev,
                [`${service}-${name}-${identifier}`]: {
                  ...(prev[`${service}-${name}-${identifier}`] || {}),
                  status: {
                    ...res,
                    status: 'FAILED_TO_DOWNLOAD',
                  },
                },
              }));
              return;
            }
            tries = tries + 1;
          }

          if (build || (calledFirstTime === false && res?.status !== 'READY')) {
            const url = `${getBaseApiReact()}/arbitrary/resource/properties/${service}/${name}/${identifier}?build=true`;
            const resCall = await fetch(url, {
              method: 'GET',
              headers: {
                'Content-Type': 'application/json',
              },
            });
            res = await resCall.json();
          }
          calledFirstTime = true;
          isCalling = false;

          if (res.localChunkCount) {
            if (res.percentLoaded) {
              if (
                res.percentLoaded === percentLoaded &&
                res.percentLoaded !== 100
              ) {
                timer = timer - 5;
              } else {
                timer = 24;
              }

              if (timer < 0) {
                timer = 24;
                isCalling = true;

                // Update Recoil state for refetching
                setResources((prev) => ({
                  ...prev,
                  [`${service}-${name}-${identifier}`]: {
                    ...(prev[`${service}-${name}-${identifier}`] || {}),
                    status: {
                      ...res,
                      status: 'REFETCHING',
                    },
                  },
                }));

                timeoutId = setTimeout(() => {
                  isCalling = false;
                  downloadResource({ name, service, identifier }, true);
                }, 25000);

                return;
              }

              percentLoaded = res.percentLoaded;
            }

            // Update Recoil state for progress
            setResources((prev) => ({
              ...prev,
              [`${service}-${name}-${identifier}`]: {
                ...(prev[`${service}-${name}-${identifier}`] || {}),
                status: res,
              },
            }));
          }

          // Check if progress is 100% and clear interval if true
          if (res?.status === 'READY') {
            if (intervalId) {
              clearInterval(intervalId);
            }
            if (timeoutId) {
              clearTimeout(timeoutId);
            }
            // Update Recoil state for completion
            setResources((prev) => ({
              ...prev,
              [`${service}-${name}-${identifier}`]: {
                ...(prev[`${service}-${name}-${identifier}`] || {}),
                status: res,
              },
            }));
          }
          if (res?.status === 'DOWNLOADED') {
            const url = `${getBaseApiReact()}/arbitrary/resource/status/${service}/${name}/${identifier}?build=true`;
            const resCall = await fetch(url, {
              method: 'GET',
              headers: {
                'Content-Type': 'application/json',
              },
            });
            res = await resCall.json();
          }
        };
        callFunction();
        intervalId = setInterval(async () => {
          callFunction();
        }, 5000);
      } catch (error) {
        console.error('Error during resource fetch:', error);
      }
    },
    [setResources]
  );

  return downloadResource;
};