import { useQueryClient } from "@tanstack/react-query";
import { useNavigation } from "expo-router";
import { useCallback, useEffect, useState } from "react";
import { useTranslation } from "react-i18next";
import {
  Linking,
  ScrollView,
  Switch,
  TextInput,
  TouchableOpacity,
  View,
} from "react-native";
import { useSafeAreaInsets } from "react-native-safe-area-context";
import { toast } from "sonner-native";
import { Text } from "@/components/common/Text";
import { ListGroup } from "@/components/list/ListGroup";
import { ListItem } from "@/components/list/ListItem";
import { useSettings } from "@/utils/atoms/settings";

export default function page() {
  const { t } = useTranslation();
  const navigation = useNavigation();
  const insets = useSafeAreaInsets();

  const {
    settings,
    updateSettings,
    pluginSettings,
    refreshStreamyfinPluginSettings,
  } = useSettings();
  const queryClient = useQueryClient();

  // Local state for all editable fields
  const [url, setUrl] = useState<string>(settings?.streamyStatsServerUrl || "");
  const [useForSearch, setUseForSearch] = useState<boolean>(
    settings?.searchEngine === "Streamystats",
  );
  const [movieRecs, setMovieRecs] = useState<boolean>(
    settings?.streamyStatsMovieRecommendations ?? false,
  );
  const [seriesRecs, setSeriesRecs] = useState<boolean>(
    settings?.streamyStatsSeriesRecommendations ?? false,
  );
  const [promotedWatchlists, setPromotedWatchlists] = useState<boolean>(
    settings?.streamyStatsPromotedWatchlists ?? false,
  );

  const isUrlLocked = pluginSettings?.streamyStatsServerUrl?.locked === true;
  const isStreamystatsEnabled = !!url;

  const onSave = useCallback(() => {
    const cleanUrl = url.endsWith("/") ? url.slice(0, -1) : url;
    updateSettings({
      streamyStatsServerUrl: cleanUrl,
      searchEngine: useForSearch ? "Streamystats" : "Jellyfin",
      streamyStatsMovieRecommendations: movieRecs,
      streamyStatsSeriesRecommendations: seriesRecs,
      streamyStatsPromotedWatchlists: promotedWatchlists,
    });
    queryClient.invalidateQueries({ queryKey: ["search"] });
    queryClient.invalidateQueries({ queryKey: ["streamystats"] });
    toast.success(t("home.settings.plugins.streamystats.toasts.saved"));
  }, [
    url,
    useForSearch,
    movieRecs,
    seriesRecs,
    promotedWatchlists,
    updateSettings,
    queryClient,
    t,
  ]);

  // Set up header save button
  useEffect(() => {
    navigation.setOptions({
      headerRight: () => (
        <TouchableOpacity onPress={onSave}>
          <Text className='text-blue-500 font-medium'>
            {t("home.settings.plugins.streamystats.save")}
          </Text>
        </TouchableOpacity>
      ),
    });
  }, [navigation, onSave, t]);

  const handleClearStreamystats = useCallback(() => {
    setUrl("");
    setUseForSearch(false);
    setMovieRecs(false);
    setSeriesRecs(false);
    setPromotedWatchlists(false);
    updateSettings({
      streamyStatsServerUrl: "",
      searchEngine: "Jellyfin",
      streamyStatsMovieRecommendations: false,
      streamyStatsSeriesRecommendations: false,
      streamyStatsPromotedWatchlists: false,
    });
    queryClient.invalidateQueries({ queryKey: ["streamystats"] });
    queryClient.invalidateQueries({ queryKey: ["search"] });
    toast.success(t("home.settings.plugins.streamystats.toasts.disabled"));
  }, [updateSettings, queryClient, t]);

  const handleOpenLink = () => {
    Linking.openURL("https://github.com/fredrikburmester/streamystats");
  };

  const handleRefreshFromServer = useCallback(async () => {
    const newPluginSettings = await refreshStreamyfinPluginSettings(true);
    // Update local state with new values
    const newUrl = newPluginSettings?.streamyStatsServerUrl?.value || "";
    setUrl(newUrl);
    if (newUrl) {
      setUseForSearch(true);
    }
    toast.success(t("home.settings.plugins.streamystats.toasts.refreshed"));
  }, [refreshStreamyfinPluginSettings, t]);

  if (!settings) return null;

  return (
    <ScrollView
      contentInsetAdjustmentBehavior='automatic'
      contentContainerStyle={{
        paddingLeft: insets.left,
        paddingRight: insets.right,
      }}
    >
      <View className='px-4'>
        <ListGroup className='flex-1'>
          <ListItem
            title={t("home.settings.plugins.streamystats.url")}
            disabledByAdmin={isUrlLocked}
          >
            <TextInput
              editable={!isUrlLocked}
              className='text-white text-right flex-1'
              placeholder={t(
                "home.settings.plugins.streamystats.server_url_placeholder",
              )}
              value={url}
              keyboardType='url'
              returnKeyType='done'
              autoCapitalize='none'
              textContentType='URL'
              onChangeText={setUrl}
            />
          </ListItem>
        </ListGroup>

        <Text className='px-4 text-xs text-neutral-500 mt-1'>
          {t("home.settings.plugins.streamystats.streamystats_search_hint")}{" "}
          <Text className='text-blue-500' onPress={handleOpenLink}>
            {t(
              "home.settings.plugins.streamystats.read_more_about_streamystats",
            )}
          </Text>
        </Text>

        <ListGroup
          title={t("home.settings.plugins.streamystats.features_title")}
          className='mt-4'
        >
          <ListItem
            title={t("home.settings.plugins.streamystats.enable_search")}
            disabledByAdmin={pluginSettings?.searchEngine?.locked === true}
          >
            <Switch
              value={useForSearch}
              disabled={!isStreamystatsEnabled}
              onValueChange={setUseForSearch}
            />
          </ListItem>
          <ListItem
            title={t(
              "home.settings.plugins.streamystats.enable_movie_recommendations",
            )}
            disabledByAdmin={
              pluginSettings?.streamyStatsMovieRecommendations?.locked === true
            }
          >
            <Switch
              value={movieRecs}
              onValueChange={setMovieRecs}
              disabled={!isStreamystatsEnabled}
            />
          </ListItem>
          <ListItem
            title={t(
              "home.settings.plugins.streamystats.enable_series_recommendations",
            )}
            disabledByAdmin={
              pluginSettings?.streamyStatsSeriesRecommendations?.locked === true
            }
          >
            <Switch
              value={seriesRecs}
              onValueChange={setSeriesRecs}
              disabled={!isStreamystatsEnabled}
            />
          </ListItem>
          <ListItem
            title={t(
              "home.settings.plugins.streamystats.enable_promoted_watchlists",
            )}
            disabledByAdmin={
              pluginSettings?.streamyStatsPromotedWatchlists?.locked === true
            }
          >
            <Switch
              value={promotedWatchlists}
              onValueChange={setPromotedWatchlists}
              disabled={!isStreamystatsEnabled}
            />
          </ListItem>
        </ListGroup>
        <Text className='px-4 text-xs text-neutral-500 mt-1'>
          {t("home.settings.plugins.streamystats.home_sections_hint")}
        </Text>

        <TouchableOpacity
          onPress={handleRefreshFromServer}
          className='mt-6 py-3 rounded-xl bg-neutral-800'
        >
          <Text className='text-center text-blue-500'>
            {t("home.settings.plugins.streamystats.refresh_from_server")}
          </Text>
        </TouchableOpacity>

        {/* Disable button - only show if URL is not locked and Streamystats is enabled */}
        {!isUrlLocked && isStreamystatsEnabled && (
          <TouchableOpacity
            onPress={handleClearStreamystats}
            className='mt-3 mb-4 py-3 rounded-xl bg-neutral-800'
          >
            <Text className='text-center text-red-500'>
              {t("home.settings.plugins.streamystats.disable_streamystats")}
            </Text>
          </TouchableOpacity>
        )}
      </View>
    </ScrollView>
  );
}