import { format } from "date-fns";
import prettyBytes from "pretty-bytes";
import { useCallback, useEffect, useMemo, useState } from "react";
import { useTranslation } from "react-i18next";

import { Button } from "@renderer/components";
import { useDownload, useLibrary } from "@renderer/hooks";
import type { Game, ShopDetails } from "@types";

import { formatDownloadProgress } from "@renderer/helpers";
import { NoEntryIcon, PlusCircleIcon } from "@primer/octicons-react";
import { BinaryNotFoundModal } from "../shared-modals/binary-not-found-modal";
import * as styles from "./hero-panel.css";
import { useDate } from "@renderer/hooks/use-date";

export interface HeroPanelProps {
  game: Game | null;
  gameDetails: ShopDetails | null;
  color: string;
  isGamePlaying: boolean;
  openRepacksModal: () => void;
  getGame: () => void;
}

export function HeroPanel({
  game,
  gameDetails,
  color,
  openRepacksModal,
  getGame,
  isGamePlaying,
}: HeroPanelProps) {
  const { t } = useTranslation("game_details");

  const [showBinaryNotFoundModal, setShowBinaryNotFoundModal] = useState(false);
  const [lastTimePlayed, setLastTimePlayed] = useState("");

  const { formatDistance } = useDate();

  const {
    game: gameDownloading,
    isDownloading,
    progress,
    eta,
    numPeers,
    numSeeds,
    resumeDownload,
    pauseDownload,
    cancelDownload,
    removeGame,
    isGameDeleting,
  } = useDownload();
  const { updateLibrary, library } = useLibrary();

  const [toggleLibraryGameDisabled, setToggleLibraryGameDisabled] =
    useState(false);

  const gameOnLibrary = library.find(
    ({ objectID }) => objectID === gameDetails?.objectID
  );

  const isGameDownloading = isDownloading && gameDownloading?.id === game?.id;

  const updateLastTimePlayed = useCallback(() => {
    setLastTimePlayed(
      formatDistance(game.lastTimePlayed, new Date(), {
        addSuffix: true,
      })
    );
  }, [game?.lastTimePlayed, formatDistance]);

  useEffect(() => {
    if (game?.lastTimePlayed) {
      updateLastTimePlayed();

      const interval = setInterval(() => {
        updateLastTimePlayed();
      }, 1000);

      return () => {
        clearInterval(interval);
      };
    }
  }, [game?.lastTimePlayed, updateLastTimePlayed]);

  const openGameInstaller = () => {
    window.electron.openGameInstaller(game.id).then((isBinaryInPath) => {
      if (!isBinaryInPath) setShowBinaryNotFoundModal(true);
      updateLibrary();
    });
  };

  const openGame = () => {
    if (game.executablePath) {
      window.electron.openGame(game.id, game.executablePath);
      return;
    }

    if (game?.executablePath) {
      window.electron.openGame(game.id, game.executablePath);
      return;
    }

    window.electron
      .showOpenDialog({
        properties: ["openFile"],
        filters: [{ name: "Game executable (.exe)", extensions: ["exe"] }],
      })
      .then(({ filePaths }) => {
        if (filePaths && filePaths.length > 0) {
          const path = filePaths[0];
          window.electron.openGame(game.id, path);
        }
      });
  };

  const closeGame = () => {
    window.electron.closeGame(game.id);
  };

  const finalDownloadSize = useMemo(() => {
    if (!game) return "N/A";
    if (game.fileSize) return prettyBytes(game.fileSize);

    if (gameDownloading?.fileSize && isGameDownloading)
      return prettyBytes(gameDownloading.fileSize);

    return game.repack?.fileSize ?? "N/A";
  }, [game, isGameDownloading, gameDownloading]);

  const toggleLibraryGame = async () => {
    setToggleLibraryGameDisabled(true);

    try {
      if (gameOnLibrary) {
        await window.electron.removeGame(gameOnLibrary.id);
      } else {
        await window.electron.addGameToLibrary(
          gameDetails.objectID,
          gameDetails.name,
          "steam"
        );
      }

      await updateLibrary();
    } finally {
      setToggleLibraryGameDisabled(false);
    }
  };

  const getInfo = () => {
    if (!gameDetails) return null;

    if (isGameDeleting(game?.id)) {
      return <p>{t("deleting")}</p>;
    }

    if (isGameDownloading) {
      return (
        <>
          <p className={styles.downloadDetailsRow}>
            {progress}
            {eta && <small>{t("eta", { eta })}</small>}
          </p>

          {gameDownloading?.status !== "downloading" ? (
            <>
              <p>{t(gameDownloading?.status)}</p>
              {eta && <small>{t("eta", { eta })}</small>}
            </>
          ) : (
            <p className={styles.downloadDetailsRow}>
              {prettyBytes(gameDownloading?.bytesDownloaded)} /{" "}
              {finalDownloadSize}
              <small>
                {numPeers} peers / {numSeeds} seeds
              </small>
            </p>
          )}
        </>
      );
    }

    if (game?.status === "paused") {
      return (
        <>
          <p>
            {t("paused_progress", {
              progress: formatDownloadProgress(game.progress),
            })}
          </p>
          <p>
            {prettyBytes(game.bytesDownloaded)} / {finalDownloadSize}
          </p>
        </>
      );
    }

    if (game?.status === "seeding") {
      if (!game.lastTimePlayed) {
        return <p>{t("not_played_yet", { title: game.title })}</p>;
      }

      return (
        <>
          <p>
            {t("play_time", {
              amount: formatDistance(0, game.playTimeInMilliseconds),
            })}
          </p>

          <p>
            {t("last_time_played", {
              period: lastTimePlayed,
            })}
          </p>
        </>
      );
    }

    const [latestRepack] = gameDetails.repacks;

    if (latestRepack) {
      const lastUpdate = format(latestRepack.uploadDate!, "dd/MM/yyyy");
      const repacksCount = gameDetails.repacks.length;

      return (
        <>
          <p>{t("updated_at", { updated_at: lastUpdate })}</p>
          <p>{t("download_options", { count: repacksCount })}</p>
        </>
      );
    }

    return <p>{t("no_downloads")}</p>;
  };

  const getActions = () => {
    const deleting = isGameDeleting(game?.id);

    const toggleGameOnLibraryButton = (
      <Button
        theme="outline"
        disabled={!gameDetails || toggleLibraryGameDisabled}
        onClick={toggleLibraryGame}
      >
        {gameOnLibrary ? <NoEntryIcon /> : <PlusCircleIcon />}
        {gameOnLibrary ? t("remove_from_library") : t("add_to_library")}
      </Button>
    );

    if (isGameDownloading) {
      return (
        <>
          <Button onClick={() => pauseDownload(game.id)} theme="outline">
            {t("pause")}
          </Button>
          <Button onClick={() => cancelDownload(game.id)} theme="outline">
            {t("cancel")}
          </Button>
        </>
      );
    }

    if (game?.status === "paused") {
      return (
        <>
          <Button onClick={() => resumeDownload(game.id)} theme="outline">
            {t("resume")}
          </Button>
          <Button
            onClick={() => cancelDownload(game.id).then(getGame)}
            theme="outline"
          >
            {t("cancel")}
          </Button>
        </>
      );
    }

    if (game?.status === "seeding") {
      return (
        <>
          <Button
            onClick={openGameInstaller}
            theme="outline"
            disabled={deleting || isGamePlaying}
          >
            {t("install")}
          </Button>

          {isGamePlaying ? (
            <Button onClick={closeGame} theme="outline" disabled={deleting}>
              {t("close")}
            </Button>
          ) : (
            <Button
              onClick={openGame}
              theme="outline"
              disabled={deleting || isGamePlaying}
            >
              {t("play")}
            </Button>
          )}
        </>
      );
    }

    if (game?.status === "cancelled") {
      return (
        <>
          <Button
            onClick={openRepacksModal}
            theme="outline"
            disabled={deleting}
          >
            {t("open_download_options")}
          </Button>
          <Button
            onClick={() => removeGame(game.id).then(getGame)}
            theme="outline"
            disabled={deleting}
          >
            {t("remove_from_list")}
          </Button>
        </>
      );
    }

    if (gameDetails && gameDetails.repacks.length) {
      return (
        <>
          {toggleGameOnLibraryButton}
          <Button onClick={openRepacksModal} theme="outline">
            {t("open_download_options")}
          </Button>
        </>
      );
    }

    return toggleGameOnLibraryButton;
  };

  return (
    <>
      <BinaryNotFoundModal
        visible={showBinaryNotFoundModal}
        onClose={() => setShowBinaryNotFoundModal(false)}
      />
      <div style={{ backgroundColor: color }} className={styles.panel}>
        <div className={styles.content}>{getInfo()}</div>
        <div className={styles.actions}>{getActions()}</div>
      </div>
    </>
  );
}