import { useMutation } from "@tanstack/react-query";
import { useAtom } from "jotai";
import { useState } from "react";
import { useTranslation } from "react-i18next";
import { View } from "react-native";
import { toast } from "sonner-native";
import { JellyseerrApi, useJellyseerr } from "@/hooks/useJellyseerr";
import { userAtom } from "@/providers/JellyfinProvider";
import { useSettings } from "@/utils/atoms/settings";
import { jellyseerrProbe } from "@/utils/serverUrl/probes/jellyseerr";
import { resolveServerUrl } from "@/utils/serverUrl/resolve";
import { Button } from "../Button";
import { Input } from "../common/Input";
import { ServerUrlField } from "../common/ServerUrlField";
import { Text } from "../common/Text";
import { ListGroup } from "../list/ListGroup";
import { ListItem } from "../list/ListItem";

export const JellyseerrSettings = () => {
  const { jellyseerrUser, setJellyseerrUser, clearAllJellyseerData } =
    useJellyseerr();

  const { t } = useTranslation();

  const [user] = useAtom(userAtom);
  const { settings, updateSettings } = useSettings();

  const [jellyseerrPassword, setJellyseerrPassword] = useState<
    string | undefined
  >(undefined);

  const [jellyseerrServerUrl, setjellyseerrServerUrl] = useState<string>(
    settings?.jellyseerrServerUrl ?? "",
  );
  const [resolvedUrl, setResolvedUrl] = useState<string | undefined>(
    settings?.jellyseerrServerUrl ?? undefined,
  );

  const loginToJellyseerrMutation = useMutation({
    mutationFn: async () => {
      if (!user?.Name)
        throw new Error("Missing required information for login");

      // Prefer the already-resolved URL; otherwise resolve the raw input now
      // (covers tapping Login before the field's on-blur resolve settled).
      let finalUrl = resolvedUrl || settings?.jellyseerrServerUrl || "";
      if (!finalUrl && jellyseerrServerUrl) {
        const resolved = await resolveServerUrl(
          jellyseerrServerUrl,
          jellyseerrProbe,
        );
        if (!resolved.ok) throw new Error("Invalid server url");
        finalUrl = resolved.url;
      }
      if (!finalUrl) throw new Error("Missing server url");

      const jellyseerrTempApi = new JellyseerrApi(finalUrl);
      const testResult = await jellyseerrTempApi.test();
      if (!testResult.isValid) throw new Error("Invalid server url");
      const loggedInUser = await jellyseerrTempApi.login(
        user.Name,
        jellyseerrPassword || "",
      );
      return { user: loggedInUser, url: finalUrl };
    },
    onSuccess: ({ user: loggedInUser, url }) => {
      setJellyseerrUser(loggedInUser);
      setResolvedUrl(url);
      updateSettings({ jellyseerrServerUrl: url });
    },
    onError: () => {
      toast.error(t("jellyseerr.failed_to_login"));
    },
    onSettled: () => {
      setJellyseerrPassword(undefined);
    },
  });

  const clearData = () => {
    clearAllJellyseerData().finally(() => {
      setJellyseerrUser(undefined);
      setJellyseerrPassword(undefined);
      setjellyseerrServerUrl("");
      setResolvedUrl(undefined);
    });
  };

  return (
    <View className=''>
      <View>
        {jellyseerrUser ? (
          <>
            <ListGroup title={"Jellyseerr"}>
              <ListItem
                title={t(
                  "home.settings.plugins.jellyseerr.total_media_requests",
                )}
                value={jellyseerrUser?.requestCount?.toString()}
              />
              <ListItem
                title={t("home.settings.plugins.jellyseerr.movie_quota_limit")}
                value={
                  jellyseerrUser?.movieQuotaLimit?.toString() ??
                  t("home.settings.plugins.jellyseerr.unlimited")
                }
              />
              <ListItem
                title={t("home.settings.plugins.jellyseerr.movie_quota_days")}
                value={
                  jellyseerrUser?.movieQuotaDays?.toString() ??
                  t("home.settings.plugins.jellyseerr.unlimited")
                }
              />
              <ListItem
                title={t("home.settings.plugins.jellyseerr.tv_quota_limit")}
                value={
                  jellyseerrUser?.tvQuotaLimit?.toString() ??
                  t("home.settings.plugins.jellyseerr.unlimited")
                }
              />
              <ListItem
                title={t("home.settings.plugins.jellyseerr.tv_quota_days")}
                value={
                  jellyseerrUser?.tvQuotaDays?.toString() ??
                  t("home.settings.plugins.jellyseerr.unlimited")
                }
              />
            </ListGroup>

            <View className='p-4'>
              <Button color='red' onPress={clearData}>
                {t(
                  "home.settings.plugins.jellyseerr.reset_jellyseerr_config_button",
                )}
              </Button>
            </View>
          </>
        ) : (
          <View className='flex flex-col rounded-xl overflow-hidden p-4 bg-neutral-900'>
            <Text className='text-xs text-red-600 mb-2'>
              {t("home.settings.plugins.jellyseerr.jellyseerr_warning")}
            </Text>
            <View className='mb-2'>
              <ServerUrlField
                value={jellyseerrServerUrl}
                onChangeText={setjellyseerrServerUrl}
                onResolved={(url) => setResolvedUrl(url)}
                probe={jellyseerrProbe}
                minVersion='2.0.0'
                label={t("home.settings.plugins.jellyseerr.server_url")}
                hint={t("home.settings.plugins.jellyseerr.server_url_hint")}
                placeholder={t(
                  "home.settings.plugins.jellyseerr.server_url_placeholder",
                )}
                editable={!loginToJellyseerrMutation.isPending}
              />
            </View>
            <View>
              <Text className='font-bold mb-2'>
                {t("home.settings.plugins.jellyseerr.password")}
              </Text>
              <Input
                className='border border-neutral-800'
                autoFocus={true}
                focusable={true}
                placeholder={t(
                  "home.settings.plugins.jellyseerr.password_placeholder",
                  { username: user?.Name },
                )}
                value={jellyseerrPassword}
                keyboardType='default'
                secureTextEntry={true}
                returnKeyType='done'
                autoCapitalize='none'
                textContentType='password'
                onChangeText={setJellyseerrPassword}
                editable={!loginToJellyseerrMutation.isPending}
              />
              <Button
                loading={loginToJellyseerrMutation.isPending}
                disabled={loginToJellyseerrMutation.isPending}
                color='purple'
                className='h-12 mt-2'
                onPress={() => loginToJellyseerrMutation.mutate()}
              >
                {t("home.settings.plugins.jellyseerr.login_button")}
              </Button>
            </View>
          </View>
        )}
      </View>
    </View>
  );
};