import React from "react";
import { Alert, Platform } from "react-native";
import { useFocusEffect, useRouter } from "expo-router";
import { MaterialCommunityIcons } from "@expo/vector-icons";
import { isDevelopmentProvisioningProfile } from "modules/check-ios-certificate";
import { ScrollView, useTheme, YStack } from "tamagui";

import type { ScrapeMedia } from "@movie-web/provider-utils";

import { DownloadItem } from "~/components/DownloadItem";
import ScreenLayout from "~/components/layout/ScreenLayout";
import { MWButton } from "~/components/ui/Button";
import { useDownloadManager } from "~/hooks/useDownloadManager";
import { PlayerStatus } from "~/stores/player/slices/interface";
import { usePlayerStore } from "~/stores/player/store";
import { useDownloadHistoryStore } from "~/stores/settings";

const DownloadsScreen: React.FC = () => {
  const { startDownload } = useDownloadManager();
  const downloads = useDownloadHistoryStore((state) => state.downloads);
  const resetVideo = usePlayerStore((state) => state.resetVideo);
  const setVideoSrc = usePlayerStore((state) => state.setVideoSrc);
  const setIsLocalFile = usePlayerStore((state) => state.setIsLocalFile);
  const setPlayerStatus = usePlayerStore((state) => state.setPlayerStatus);
  const router = useRouter();
  const theme = useTheme();

  useFocusEffect(
    React.useCallback(() => {
      if (Platform.OS === "ios" && !isDevelopmentProvisioningProfile()) {
        Alert.alert(
          "Production Certificate",
          "Download functionality is not available when the application is signed with a distribution certificate.",
          [
            {
              text: "OK",
              onPress: () => router.back(),
            },
          ],
        );
      }
    }, [router]),
  );

  const handlePress = (localPath?: string) => {
    if (!localPath) return;
    resetVideo();
    setIsLocalFile(true);
    setPlayerStatus(PlayerStatus.READY);
    setVideoSrc({
      uri: localPath,
    });
    router.push({
      pathname: "/videoPlayer",
    });
  };

  const exampleShowMedia: ScrapeMedia = {
    type: "show",
    title: "Example Show Title",
    releaseYear: 2022,
    imdbId: "tt1234567",
    tmdbId: "12345",
    season: {
      number: 1,
      tmdbId: "54321",
    },
    episode: {
      number: 3,
      tmdbId: "98765",
    },
  };

  return (
    <ScreenLayout>
      <YStack gap={2} style={{ padding: 10 }}>
        <MWButton
          type="secondary"
          backgroundColor="$sheetItemBackground"
          icon={
            <MaterialCommunityIcons
              name="download"
              size={24}
              color={theme.buttonSecondaryText.val}
            />
          }
          onPress={async () => {
            await startDownload(
              "https://samplelib.com/lib/preview/mp4/sample-5s.mp4",
              "mp4",
              exampleShowMedia,
            ).catch(console.error);
          }}
        >
          test download (mp4)
        </MWButton>
        <MWButton
          type="secondary"
          backgroundColor="$sheetItemBackground"
          icon={
            <MaterialCommunityIcons
              name="download"
              size={24}
              color={theme.buttonSecondaryText.val}
            />
          }
          onPress={async () => {
            await startDownload(
              "http://sample.vodobox.com/skate_phantom_flex_4k/skate_phantom_flex_4k.m3u8",
              "hls",
              {
                ...exampleShowMedia,
                tmdbId: "123456",
              },
            ).catch(console.error);
          }}
        >
          test download (hls)
        </MWButton>
      </YStack>
      <ScrollView
        contentContainerStyle={{
          gap: "$4",
        }}
      >
        {/* TODO: Differentiate movies/shows, shows in new page */}
        {downloads
          .map((item) => item.downloads)
          .flat()
          .map((item) => (
            <DownloadItem
              key={item.id}
              item={item}
              onPress={() => handlePress(item.localPath)}
            />
          ))}
      </ScrollView>
    </ScreenLayout>
  );
};

export default DownloadsScreen;