import React, { useState, useContext, useMemo } from 'react';
import {
  FormattedMessage,
  FormattedDate,
  defineMessages,
  useIntl,
} from 'react-intl';
import useSWR from 'swr';
import { useRouter } from 'next/router';
import Button from '../Common/Button';
import type { TvResult } from '../../../server/models/Search';
import Link from 'next/link';
import Slider from '../Slider';
import TitleCard from '../TitleCard';
import PersonCard from '../PersonCard';
import { LanguageContext } from '../../context/LanguageContext';
import LoadingSpinner from '../Common/LoadingSpinner';
import { useUser, Permission } from '../../hooks/useUser';
import { TvDetails as TvDetailsType } from '../../../server/models/Tv';
import { MediaStatus } from '../../../server/constants/media';
import RequestModal from '../RequestModal';
import axios from 'axios';
import SlideOver from '../Common/SlideOver';
import RequestBlock from '../RequestBlock';
import Error from '../../pages/_error';
import TmdbLogo from '../../assets/tmdb_logo.svg';
import RTFresh from '../../assets/rt_fresh.svg';
import RTRotten from '../../assets/rt_rotten.svg';
import RTAudFresh from '../../assets/rt_aud_fresh.svg';
import RTAudRotten from '../../assets/rt_aud_rotten.svg';
import type { RTRating } from '../../../server/api/rottentomatoes';
import Head from 'next/head';
import { ANIME_KEYWORD_ID } from '../../../server/api/themoviedb';
import ExternalLinkBlock from '../ExternalLinkBlock';
import { sortCrewPriority } from '../../utils/creditHelpers';
import { Crew } from '../../../server/models/common';
import StatusBadge from '../StatusBadge';
import RequestButton from '../MovieDetails/RequestButton';

const messages = defineMessages({
  firstAirDate: 'First Air Date',
  userrating: 'User Rating',
  status: 'Status',
  originallanguage: 'Original Language',
  overview: 'Overview',
  cast: 'Cast',
  recommendations: 'Recommendations',
  similar: 'Similar Series',
  cancelrequest: 'Cancel Request',
  watchtrailer: 'Watch Trailer',
  available: 'Available',
  unavailable: 'Unavailable',
  pending: 'Pending',
  overviewunavailable: 'Overview unavailable',
  manageModalTitle: 'Manage Series',
  manageModalRequests: 'Requests',
  manageModalNoRequests: 'No Requests',
  manageModalClearMedia: 'Clear All Media Data',
  manageModalClearMediaWarning:
    'This will remove all media data including all requests for this item. This action is irreversible. If this item exists in your Plex library, the media information will be recreated next sync.',
  approve: 'Approve',
  decline: 'Decline',
  showtype: 'Show Type',
  anime: 'Anime',
  network: 'Network',
  viewfullcrew: 'View Full Crew',
});

interface TvDetailsProps {
  tv?: TvDetailsType;
}

interface SearchResult {
  page: number;
  totalResults: number;
  totalPages: number;
  results: TvResult[];
}

const TvDetails: React.FC<TvDetailsProps> = ({ tv }) => {
  const { hasPermission } = useUser();
  const router = useRouter();
  const intl = useIntl();
  const { locale } = useContext(LanguageContext);
  const [showRequestModal, setShowRequestModal] = useState(false);
  const [showManager, setShowManager] = useState(false);
  const { data, error, revalidate } = useSWR<TvDetailsType>(
    `/api/v1/tv/${router.query.tvId}?language=${locale}`,
    {
      initialData: tv,
    }
  );
  const { data: recommended, error: recommendedError } = useSWR<SearchResult>(
    `/api/v1/tv/${router.query.tvId}/recommendations?language=${locale}`
  );
  const { data: similar, error: similarError } = useSWR<SearchResult>(
    `/api/v1/tv/${router.query.tvId}/similar?language=${locale}`
  );

  const { data: ratingData } = useSWR<RTRating>(
    `/api/v1/tv/${router.query.tvId}/ratings`
  );

  const sortedCrew = useMemo(() => sortCrewPriority(data?.credits.crew ?? []), [
    data,
  ]);

  if (!data && !error) {
    return <LoadingSpinner />;
  }

  if (!data) {
    return <Error statusCode={404} />;
  }

  const trailerUrl = data.relatedVideos
    ?.filter((r) => r.type === 'Trailer')
    .sort((a, b) => a.size - b.size)
    .pop()?.url;

  const deleteMedia = async () => {
    if (data?.mediaInfo?.id) {
      await axios.delete(`/api/v1/media/${data?.mediaInfo?.id}`);
      revalidate();
    }
  };

  const isComplete =
    data.seasons.filter((season) => season.seasonNumber !== 0).length <=
    (
      data.mediaInfo?.seasons.filter(
        (season) => season.status === MediaStatus.AVAILABLE
      ) ?? []
    ).length;

  const is4kComplete =
    data.seasons.filter((season) => season.seasonNumber !== 0).length <=
    (
      data.mediaInfo?.seasons.filter(
        (season) => season.status4k === MediaStatus.AVAILABLE
      ) ?? []
    ).length;

  return (
    <div
      className="px-4 pt-4 -mx-4 -mt-2 bg-center bg-cover"
      style={{
        height: 493,
        backgroundImage: `linear-gradient(180deg, rgba(17, 24, 39, 0.47) 0%, rgba(17, 24, 39, 1) 100%), url(//image.tmdb.org/t/p/w1920_and_h800_multi_faces/${data.backdropPath})`,
      }}
    >
      <Head>
        <title>{data.name} - Overseerr</title>
      </Head>
      <RequestModal
        tmdbId={data.id}
        show={showRequestModal}
        type="tv"
        onComplete={() => {
          revalidate();
          setShowRequestModal(false);
        }}
        onCancel={() => setShowRequestModal(false)}
      />
      <SlideOver
        show={showManager}
        title={intl.formatMessage(messages.manageModalTitle)}
        onClose={() => setShowManager(false)}
        subText={data.name}
      >
        <h3 className="mb-2 text-xl">
          {intl.formatMessage(messages.manageModalRequests)}
        </h3>
        <div className="overflow-hidden bg-gray-600 rounded-md shadow">
          <ul>
            {data.mediaInfo?.requests?.map((request) => (
              <li
                key={`manage-request-${request.id}`}
                className="border-b border-gray-700 last:border-b-0"
              >
                <RequestBlock request={request} onUpdate={() => revalidate()} />
              </li>
            ))}
            {(data.mediaInfo?.requests ?? []).length === 0 && (
              <li className="py-4 text-center text-gray-400">
                {intl.formatMessage(messages.manageModalNoRequests)}
              </li>
            )}
          </ul>
        </div>
        {data?.mediaInfo && (
          <div className="mt-8">
            <Button
              buttonType="danger"
              className="w-full text-center"
              onClick={() => deleteMedia()}
            >
              {intl.formatMessage(messages.manageModalClearMedia)}
            </Button>
            <div className="mt-2 text-sm text-gray-400">
              {intl.formatMessage(messages.manageModalClearMediaWarning)}
            </div>
          </div>
        )}
      </SlideOver>
      <div className="flex flex-col items-center pt-4 lg:flex-row lg:items-end">
        <div className="lg:mr-4">
          <img
            src={`//image.tmdb.org/t/p/w600_and_h900_bestv2${data.posterPath}`}
            alt=""
            className="w-32 rounded shadow md:rounded-lg md:shadow-2xl md:w-44 lg:w-52"
          />
        </div>
        <div className="flex flex-col flex-1 mt-4 text-center text-white lg:mr-4 lg:mt-0 lg:text-left">
          <div className="mb-2">
            {data.mediaInfo && data.mediaInfo.status !== MediaStatus.UNKNOWN && (
              <span className="mr-2">
                <StatusBadge status={data.mediaInfo?.status} />
              </span>
            )}
            <span>
              <StatusBadge status={data.mediaInfo?.status4k} is4k />
            </span>
          </div>
          <h1 className="text-2xl lg:text-4xl">
            <span>{data.name}</span>
            {data.firstAirDate && (
              <span className="ml-2 text-2xl">
                ({data.firstAirDate.slice(0, 4)})
              </span>
            )}
          </h1>
          <span className="mt-1 text-xs lg:text-base lg:mt-0">
            {data.genres.map((g) => g.name).join(', ')}
          </span>
        </div>
        <div className="flex justify-end flex-shrink-0 mt-4 lg:mt-0">
          {trailerUrl && (
            <a href={trailerUrl} target="_blank" rel="noreferrer">
              <Button buttonType="ghost">
                <svg
                  className="w-5 h-5 mr-1"
                  fill="none"
                  stroke="currentColor"
                  viewBox="0 0 24 24"
                  xmlns="http://www.w3.org/2000/svg"
                >
                  <path
                    strokeLinecap="round"
                    strokeLinejoin="round"
                    strokeWidth={2}
                    d="M14.752 11.168l-3.197-2.132A1 1 0 0010 9.87v4.263a1 1 0 001.555.832l3.197-2.132a1 1 0 000-1.664z"
                  />
                  <path
                    strokeLinecap="round"
                    strokeLinejoin="round"
                    strokeWidth={2}
                    d="M21 12a9 9 0 11-18 0 9 9 0 0118 0z"
                  />
                </svg>
                <FormattedMessage {...messages.watchtrailer} />
              </Button>
            </a>
          )}
          <RequestButton
            mediaType="tv"
            onUpdate={() => revalidate()}
            tmdbId={data?.id}
            media={data?.mediaInfo}
            isShowComplete={isComplete}
            is4kShowComplete={is4kComplete}
          />
          {hasPermission(Permission.MANAGE_REQUESTS) && (
            <Button
              buttonType="default"
              className="ml-2 first:ml-0"
              onClick={() => setShowManager(true)}
            >
              <svg
                className="w-5"
                style={{ height: 20 }}
                fill="none"
                stroke="currentColor"
                viewBox="0 0 24 24"
                xmlns="http://www.w3.org/2000/svg"
              >
                <path
                  strokeLinecap="round"
                  strokeLinejoin="round"
                  strokeWidth={2}
                  d="M10.325 4.317c.426-1.756 2.924-1.756 3.35 0a1.724 1.724 0 002.573 1.066c1.543-.94 3.31.826 2.37 2.37a1.724 1.724 0 001.065 2.572c1.756.426 1.756 2.924 0 3.35a1.724 1.724 0 00-1.066 2.573c.94 1.543-.826 3.31-2.37 2.37a1.724 1.724 0 00-2.572 1.065c-.426 1.756-2.924 1.756-3.35 0a1.724 1.724 0 00-2.573-1.066c-1.543.94-3.31-.826-2.37-2.37a1.724 1.724 0 00-1.065-2.572c-1.756-.426-1.756-2.924 0-3.35a1.724 1.724 0 001.066-2.573c-.94-1.543.826-3.31 2.37-2.37.996.608 2.296.07 2.572-1.065z"
                />
                <path
                  strokeLinecap="round"
                  strokeLinejoin="round"
                  strokeWidth={2}
                  d="M15 12a3 3 0 11-6 0 3 3 0 016 0z"
                />
              </svg>
            </Button>
          )}
        </div>
      </div>
      <div className="flex flex-col pt-8 pb-4 text-white md:flex-row">
        <div className="flex-1 md:mr-8">
          <h2 className="text-xl md:text-2xl">
            <FormattedMessage {...messages.overview} />
          </h2>
          <p className="pt-2 text-sm md:text-base">
            {data.overview
              ? data.overview
              : intl.formatMessage(messages.overviewunavailable)}
          </p>
          <ul className="grid grid-cols-2 gap-6 mt-6 sm:grid-cols-3">
            {(data.createdBy.length > 0
              ? [
                  ...data.createdBy.map(
                    (person): Partial<Crew> => ({
                      id: person.id,
                      job: 'Creator',
                      name: person.name,
                    })
                  ),
                  ...sortedCrew,
                ]
              : sortedCrew
            )
              .slice(0, 6)
              .map((person) => (
                <li
                  className="flex flex-col col-span-1"
                  key={`crew-${person.job}-${person.id}`}
                >
                  <span className="font-bold">{person.job}</span>
                  <Link href={`/person/${person.id}`}>
                    <a className="text-gray-400 transition duration-300 hover:text-underline hover:text-gray-100">
                      {person.name}
                    </a>
                  </Link>
                </li>
              ))}
          </ul>
          {sortedCrew.length > 0 && (
            <div className="flex justify-end mt-4">
              <Link href={`/tv/${data.id}/crew`}>
                <a className="flex items-center text-gray-400 transition duration-300 hover:text-gray-100">
                  <span>{intl.formatMessage(messages.viewfullcrew)}</span>
                  <svg
                    className="inline-block w-5 h-5 ml-1"
                    fill="none"
                    stroke="currentColor"
                    viewBox="0 0 24 24"
                    xmlns="http://www.w3.org/2000/svg"
                  >
                    <path
                      strokeLinecap="round"
                      strokeLinejoin="round"
                      strokeWidth={2}
                      d="M13 9l3 3m0 0l-3 3m3-3H8m13 0a9 9 0 11-18 0 9 9 0 0118 0z"
                    />
                  </svg>
                </a>
              </Link>
            </div>
          )}
        </div>
        <div className="w-full mt-8 md:w-80 md:mt-0">
          <div className="bg-gray-900 border border-gray-800 rounded-lg shadow">
            {(data.voteCount > 0 || ratingData) && (
              <div className="flex items-center justify-center px-4 py-2 border-b border-gray-800 last:border-b-0">
                {ratingData?.criticsRating &&
                  (ratingData?.criticsScore ?? 0) > 0 && (
                    <>
                      <span className="text-sm">
                        {ratingData.criticsRating === 'Rotten' ? (
                          <RTRotten className="w-6 mr-1" />
                        ) : (
                          <RTFresh className="w-6 mr-1" />
                        )}
                      </span>
                      <span className="mr-4 text-sm text-gray-400 last:mr-0">
                        {ratingData.criticsScore}%
                      </span>
                    </>
                  )}
                {ratingData?.audienceRating &&
                  (ratingData?.audienceScore ?? 0) > 0 && (
                    <>
                      <span className="text-sm">
                        {ratingData.audienceRating === 'Spilled' ? (
                          <RTAudRotten className="w-6 mr-1" />
                        ) : (
                          <RTAudFresh className="w-6 mr-1" />
                        )}
                      </span>
                      <span className="mr-4 text-sm text-gray-400 last:mr-0">
                        {ratingData.audienceScore}%
                      </span>
                    </>
                  )}
                {data.voteCount > 0 && (
                  <>
                    <span className="text-sm">
                      <TmdbLogo className="w-6 mr-2" />
                    </span>
                    <span className="text-sm text-gray-400">
                      {data.voteAverage}/10
                    </span>
                  </>
                )}
              </div>
            )}
            {data.keywords.some(
              (keyword) => keyword.id === ANIME_KEYWORD_ID
            ) && (
              <div className="flex px-4 py-2 border-b border-gray-800 last:border-b-0">
                <span className="text-sm">
                  {intl.formatMessage(messages.showtype)}
                </span>
                <span className="flex-1 text-sm text-right text-gray-400">
                  {intl.formatMessage(messages.anime)}
                </span>
              </div>
            )}
            {data.firstAirDate && (
              <div className="flex px-4 py-2 border-b border-gray-800 last:border-b-0">
                <span className="text-sm">
                  <FormattedMessage {...messages.firstAirDate} />
                </span>
                <span className="flex-1 text-sm text-right text-gray-400">
                  <FormattedDate
                    value={new Date(data.firstAirDate)}
                    year="numeric"
                    month="long"
                    day="numeric"
                  />
                </span>
              </div>
            )}
            <div className="flex px-4 py-2 border-b border-gray-800 last:border-b-0">
              <span className="text-sm">
                <FormattedMessage {...messages.status} />
              </span>
              <span className="flex-1 text-sm text-right text-gray-400">
                {data.status}
              </span>
            </div>
            {data.spokenLanguages.some(
              (lng) => lng.iso_639_1 === data.originalLanguage
            ) && (
              <div className="flex px-4 py-2 border-b border-gray-800 last:border-b-0">
                <span className="text-sm">
                  <FormattedMessage {...messages.originallanguage} />
                </span>
                <span className="flex-1 text-sm text-right text-gray-400">
                  {
                    data.spokenLanguages.find(
                      (lng) => lng.iso_639_1 === data.originalLanguage
                    )?.name
                  }
                </span>
              </div>
            )}
            {data.networks.length > 0 && (
              <div className="flex px-4 py-2 border-b border-gray-800 last:border-b-0">
                <span className="text-sm">
                  <FormattedMessage {...messages.network} />
                </span>
                <span className="flex-1 text-sm text-right text-gray-400">
                  {data.networks.map((n) => n.name).join(', ')}
                </span>
              </div>
            )}
          </div>
          <div className="mt-4">
            <ExternalLinkBlock
              mediaType="tv"
              tmdbId={data.id}
              imdbId={data.externalIds.imdbId}
              rtUrl={ratingData?.url}
            />
          </div>
        </div>
      </div>
      <div className="mt-6 mb-4 md:flex md:items-center md:justify-between">
        <div className="flex-1 min-w-0">
          <Link href="/tv/[tvId]/cast" as={`/tv/${data.id}/cast`}>
            <a className="inline-flex items-center text-xl leading-7 text-gray-300 hover:text-white sm:text-2xl sm:leading-9 sm:truncate">
              <span>
                <FormattedMessage {...messages.cast} />
              </span>
              <svg
                className="w-6 h-6 ml-2"
                fill="none"
                stroke="currentColor"
                viewBox="0 0 24 24"
                xmlns="http://www.w3.org/2000/svg"
              >
                <path
                  strokeLinecap="round"
                  strokeLinejoin="round"
                  strokeWidth={2}
                  d="M13 9l3 3m0 0l-3 3m3-3H8m13 0a9 9 0 11-18 0 9 9 0 0118 0z"
                />
              </svg>
            </a>
          </Link>
        </div>
      </div>
      <Slider
        sliderKey="cast"
        isLoading={false}
        isEmpty={false}
        items={data?.credits.cast.slice(0, 20).map((person) => (
          <PersonCard
            key={`cast-item-${person.id}`}
            personId={person.id}
            name={person.name}
            subName={person.character}
            profilePath={person.profilePath}
          />
        ))}
      />
      {(recommended?.results ?? []).length > 0 && (
        <>
          <div className="mt-6 mb-4 md:flex md:items-center md:justify-between">
            <div className="flex-1 min-w-0">
              <Link
                href="/tv/[tvId]/recommendations"
                as={`/tv/${data.id}/recommendations`}
              >
                <a className="inline-flex items-center text-xl leading-7 text-gray-300 hover:text-white sm:text-2xl sm:leading-9 sm:truncate">
                  <span>
                    <FormattedMessage {...messages.recommendations} />
                  </span>
                  <svg
                    className="w-6 h-6 ml-2"
                    fill="none"
                    stroke="currentColor"
                    viewBox="0 0 24 24"
                    xmlns="http://www.w3.org/2000/svg"
                  >
                    <path
                      strokeLinecap="round"
                      strokeLinejoin="round"
                      strokeWidth={2}
                      d="M13 9l3 3m0 0l-3 3m3-3H8m13 0a9 9 0 11-18 0 9 9 0 0118 0z"
                    />
                  </svg>
                </a>
              </Link>
            </div>
          </div>
          <Slider
            sliderKey="recommendations"
            isLoading={!recommended && !recommendedError}
            isEmpty={false}
            items={recommended?.results.map((title) => (
              <TitleCard
                key={`recommended-${title.id}`}
                id={title.id}
                image={title.posterPath}
                status={title.mediaInfo?.status}
                summary={title.overview}
                title={title.name}
                userScore={title.voteAverage}
                year={title.firstAirDate}
                mediaType={title.mediaType}
              />
            ))}
          />
        </>
      )}
      {(similar?.results ?? []).length > 0 && (
        <>
          <div className="mt-6 mb-4 md:flex md:items-center md:justify-between">
            <div className="flex-1 min-w-0">
              <Link href="/tv/[tvId]/similar" as={`/tv/${data.id}/similar`}>
                <a className="inline-flex items-center text-xl leading-7 text-gray-300 hover:text-white sm:text-2xl sm:leading-9 sm:truncate">
                  <span>
                    <FormattedMessage {...messages.similar} />
                  </span>
                  <svg
                    className="w-6 h-6 ml-2"
                    fill="none"
                    stroke="currentColor"
                    viewBox="0 0 24 24"
                    xmlns="http://www.w3.org/2000/svg"
                  >
                    <path
                      strokeLinecap="round"
                      strokeLinejoin="round"
                      strokeWidth={2}
                      d="M13 9l3 3m0 0l-3 3m3-3H8m13 0a9 9 0 11-18 0 9 9 0 0118 0z"
                    />
                  </svg>
                </a>
              </Link>
            </div>
          </div>
          <Slider
            sliderKey="similar"
            isLoading={!similar && !similarError}
            isEmpty={false}
            items={similar?.results.map((title) => (
              <TitleCard
                key={`recommended-${title.id}`}
                id={title.id}
                image={title.posterPath}
                status={title.mediaInfo?.status}
                summary={title.overview}
                title={title.name}
                userScore={title.voteAverage}
                year={title.firstAirDate}
                mediaType={title.mediaType}
              />
            ))}
          />
        </>
      )}
      <div className="pb-8" />
    </div>
  );
};

export default TvDetails;
