//---   Modules/Imports   ---//
import { Http } from "@capacitor-community/http";
import Innertube from "./innertube";
import constants from "./constants";
import useRender from "./renderers";

//---   Logger Function   ---//
function logger(func, data, isError = false) {
  searchModule.logs.unshift({
    name: func,
    time: Date.now(),
    data: data,
    error: isError,
  });
}

//---   Youtube Base Parser   ---//
function youtubeParse(html, callback) {
  //---   Replace Encoded Characters   ---///
  html = html.replace(/\\x([0-9A-F]{2})/gi, (...items) => {
    return String.fromCharCode(parseInt(items[1], 16));
  });
  //---   Properly Format JSON   ---//
  html = html.replaceAll('\\\\"', "");
  //---   Parse JSON   ---//
  html = JSON.parse(html);

  //---   Get Results   ---// ( Thanks To appit-online On Github ) -> https://github.com/appit-online/youtube-search/blob/master/src/lib/search.ts
  let results;
  if (
    html &&
    html.contents &&
    html.contents.sectionListRenderer &&
    html.contents.sectionListRenderer.contents &&
    html.contents.sectionListRenderer.contents.length > 0 &&
    html.contents.sectionListRenderer.contents[0].itemSectionRenderer &&
    html.contents.sectionListRenderer.contents[0].itemSectionRenderer.contents
      .length > 0
  ) {
    results =
      html.contents.sectionListRenderer.contents[0].itemSectionRenderer
        .contents;
    logger(constants.LOGGER_NAMES.search, results);
    callback(results);
  } else {
    try {
      results = JSON.parse(
        html
          .split('{"itemSectionRenderer":{"contents":')
          [html.split('{"itemSectionRenderer":{"contents":').length - 1].split(
            ',"continuations":[{'
          )[0]
      );
      logger(constants.LOGGER_NAMES.search, results);
      callback(results);
    } catch (e) {}
    try {
      results = JSON.parse(
        html
          .split('{"itemSectionRenderer":')
          [html.split('{"itemSectionRenderer":').length - 1].split(
            '},{"continuationItemRenderer":{'
          )[0]
      ).contents;
      logger(constants.LOGGER_NAMES.search, results);
      callback(results);
    } catch (e) {}
  }
}

//---   Search Main Function   ---//
function youtubeSearch(text, callback) {
  Http.request({
    method: "GET",
    url: `${constants.URLS.YT_URL}/results`,
    params: { q: text, hl: "en" },
  })
    .then((res) => {
      //---   Get HTML Only   ---//
      let html = res.data;
      //---   Isolate The Script Containing Video Information   ---//
      html = html.split("var ytInitialData = '")[1].split("';</script>")[0];

      youtubeParse(html, (data) => {
        callback(data);
      });
    })
    .catch((err) => {
      logger(constants.LOGGER_NAMES.search, err, true);
      callback(err);
    });
}

const searchModule = {
  logs: new Array(),

  //---   Get YouTube's Search Auto Complete   ---//
  autoComplete(text, callback) {
    Http.request({
      method: "GET",
      url: `${constants.URLS.YT_SUGGESTIONS}/search`,
      params: { client: "youtube", q: text },
    })
      .then((res) => {
        logger(constants.LOGGER_NAMES.autoComplete, res);
        callback(res.data);
      })
      .catch((err) => {
        logger(constants.LOGGER_NAMES.autoComplete, err, true);
        callback(err);
      });
  },

  search(text, callback) {
    let results = new Array();
    youtubeSearch(text, (videos) => {
      for (const i in videos) {
        const video = videos[i];

        if (video.compactVideoRenderer) {
          //---   If Entry Is A Video   ---//
          results.push({
            id: video.compactVideoRenderer.videoId,
            title: video.compactVideoRenderer.title.runs[0].text,
            runtime: video.compactVideoRenderer.lengthText.runs[0].text,
            uploaded: video.compactVideoRenderer.publishedTimeText.runs[0].text,
            views: video.compactVideoRenderer.viewCountText.runs[0].text,
            thumbnails: video.compactVideoRenderer.thumbnail.thumbnails,
          });
        } else {
          //---   If Entry Is Not A Video   ---//
          //logger(constants.LOGGER_NAMES.search, { type: "Error Caught Successfully", error: video }, true);
        }
      }
    });
    callback(results);
  },

  getRemainingVideoInfo(id, callback) {
    String.prototype.decodeEscapeSequence = function () {
      return this.replace(/\\x([0-9A-Fa-f]{2})/g, function () {
        return String.fromCharCode(parseInt(arguments[1], 16));
      });
    };
    Http.request({
      method: "GET",
      url: `${constants.URLS.YT_URL}/watch`,
      params: { v: id },
    })
      .then((res) => {
        let dataUpdated = res.data.decodeEscapeSequence();
        let likes = dataUpdated
          .split(
            `"defaultIcon":{"iconType":"LIKE"},"defaultText":{"runs":[{"text":"`
          )[1]
          .split(`"}],"accessibility":`)[0];
        let uploadDate = dataUpdated
          .split(`"uploadDate":"`)[1]
          .split(`}},"trackingParams":"`)[0]
          .slice(0, -2);
        let data = {
          likes: likes,
          uploadDate: uploadDate,
        };
        logger("vidData", data);
        callback(data);
      })
      .catch((err) => {
        logger("codeRun", err, true);
        callback(err);
      });
  },

  getReturnYoutubeDislike(id, callback) {
    Http.request({
      method: "GET",
      url: `https://returnyoutubedislikeapi.com/votes`,
      params: { videoId: id },
    })
      .then((res) => {
        logger("rydData", res.data);
        callback(res.data);
      })
      .catch((err) => {
        logger("codeRun", err, true);
        callback(err);
      });
  },
};

//---   Recommendations   ---//

let InnertubeAPI;

// Loads Innertube object. This will be the object used in all future Innertube API calls. getAPI Code provided by Lightfire228 (https://github.com/Lightfire228)
// These are just a way for the backend Javascript to communicate with the front end Vue scripts. Essentially a wrapper inside a wrapper
const innertubeModule = {
  async getAPI() {
    if (!InnertubeAPI) {
      InnertubeAPI = await Innertube.createAsync((message, isError) => {
        logger(constants.LOGGER_NAMES.innertube, message, isError);
      });
    }
    return InnertubeAPI;
  },

  async getVid(id) {
    try {
      return await InnertubeAPI.VidInfoAsync(id);
    } catch (error) {
      logger(constants.LOGGER_NAMES.watch, error, true);
    }
  },

  getThumbnail(id, resolution) {
    if (resolution == "max") {
      const url = `https://img.youtube.com/vi/${id}/maxresdefault.jpg`;
      let img = new Image();
      img.src = url;
      img.onload = function () {
        if (img.height !== 120) return url;
      };
    }
    return `https://img.youtube.com/vi/${id}/mqdefault.jpg`;
  },

  // It just works™
  // Front page recommendation
  async recommend() {
    const response = await InnertubeAPI.getRecommendationsAsync();
    if (!response.success)
      throw new Error("An error occurred and innertube failed to respond");

    const contents =
      response.data.contents.singleColumnBrowseResultsRenderer.tabs[0]
        .tabRenderer.content.sectionListRenderer.contents;
    const final = contents.map((shelves) => {
      const video =
        shelves.shelfRenderer?.content?.horizontalListRenderer?.items;

      if (video) return video;
      // if (video)
      //   return video.map((item) => {
      //     if (item) {
      //       const renderedItem = useRender(
      //         item[Object.keys(item)[0]],
      //         Object.keys(item)[0]
      //       );
      //       console.log(renderedItem);
      //       return renderedItem;
      //     } else {
      //       return undefined;
      //     }
      //   });
    });
    console.log(final);
    return final;
  },

  // This is the recommendations that exist under videos
};

//---   Start   ---//
export default ({ app }, inject) => {
  inject("youtube", { ...searchModule, ...innertubeModule });
  inject("logger", logger);
};
logger(constants.LOGGER_NAMES.init, "Program Started");