import React, { useEffect, useState } from 'react';
import { useParams, Link } from 'react-router-dom';
import { Play, Plus, ThumbsUp, Share2 } from 'lucide-react';
import { getMovieMetadata, getGenresItems, getMovieCard } from '../lib/api';
import ContentRow from '../components/ContentRow';
import { useToast } from '@/hooks/use-toast';

const MovieDetailPage = () => {
  const { title } = useParams<{ title: string }>();
  const [movie, setMovie] = useState<any>(null);
  const [loading, setLoading] = useState(true);
  const [similarMovies, setSimilarMovies] = useState<any[]>([]);
  const { toast } = useToast();

  useEffect(() => {
    const fetchMovieData = async () => {
      if (!title) return;

      try {
        setLoading(true);
        const data = await getMovieMetadata(title);
        setMovie(data);
        const movieData = data.data;
        console.log(movieData);

        // Fetch similar movies based on individual genres
        if (movieData.genres && movieData.genres.length > 0) {
          const currentMovieName = movieData.name;
          const moviesByGenre = await Promise.all(
            movieData.genres.map(async (genre: any) => {
              // Pass a single genre name for each call
              const genreResult = await getGenresItems([genre.name], 'movie', 10, 1);
              if (genreResult.movies && Array.isArray(genreResult.movies)) {
                return genreResult.movies.map((movieItem: any) => {
                  const { title: similarTitle } = movieItem;
                  // Skip current movie
                  if (similarTitle === currentMovieName) return null;
                  return {
                    type: 'movie',
                    title: similarTitle,
                  };
                });
              }
              return [];
            })
          );
          // Flatten the array of arrays and remove null results
          const flattenedMovies = moviesByGenre.flat().filter(Boolean);
          // Remove duplicates based on the title
          const uniqueMovies = Array.from(
            new Map(flattenedMovies.map(movie => [movie.title, movie])).values()
          );
          setSimilarMovies(uniqueMovies);
        }
      } catch (error) {
        console.error(`Error fetching movie details for ${title}:`, error);
        toast({
          title: "Error loading movie details",
          description: "Please try again later",
          variant: "destructive"
        });
      } finally {
        setLoading(false);
      }
    };

    fetchMovieData();
  }, [title, toast]);

  if (loading) {
    return (
      <div className="flex items-center justify-center min-h-screen">
        <div className="animate-spin rounded-full h-12 w-12 border-t-2 border-b-2 border-netflix-red"></div>
      </div>
    );
  }

  if (!movie) {
    return (
      <div className="pt-24 px-4 md:px-8 text-center min-h-screen">
        <h1 className="text-3xl font-bold mb-4">Movie Not Found</h1>
        <p className="text-netflix-gray mb-6">We couldn't find the movie you're looking for.</p>
        <Link to="/movies" className="bg-netflix-red px-6 py-2 rounded font-medium">
          Back to Movies
        </Link>
      </div>
    );
  }

  // Use movieData fields from the new structure
  const movieData = movie.data;
  const runtime = movieData.runtime
    ? `${Math.floor(movieData.runtime / 60)}h ${movieData.runtime % 60}m`
    : '';
  const releaseYear = movieData.year || '';
  const movieName = (movieData.translations?.nameTranslations?.find((t: any) => t.language === 'eng')?.name || movieData.name || '');
  const overview =
    movieData.overview ||
    (movieData.translations?.overviewTranslations?.find((t: any) => t.language === 'eng')?.overview || '');

  return (
    <div className="pb-12 animate-fade-in">
      {/* Hero backdrop */}
      <div className="relative w-full h-[500px] md:h-[600px]">
        <div className="absolute inset-0">
          <img
            src={movieData.image}
            alt={movieName}
            className="w-full h-full object-cover"
            onError={(e) => {
              const target = e.target as HTMLImageElement;
              target.src = '/placeholder.svg';
            }}
          />
          <div className="absolute inset-0 bg-gradient-to-t from-netflix-black via-netflix-black/60 to-transparent" />
          <div className="absolute inset-0 bg-gradient-to-r from-netflix-black/80 via-netflix-black/40 to-transparent" />
        </div>
      </div>

      {/* Movie details */}
      <div className="px-4 md:px-8 -mt-60 relative z-10 max-w-7xl mx-auto">
        <div className="flex flex-col md:flex-row gap-8">
          {/* Poster */}
          <div className="flex-shrink-0 hidden md:block">
            <img
              src={movieData.image}
              alt={movieName}
              className="w-64 h-96 object-cover rounded-md shadow-lg"
              onError={(e) => {
                const target = e.target as HTMLImageElement;
                target.src = '/placeholder.svg';
              }}
            />
          </div>

          {/* Details */}
          <div className="flex-grow">
            <h1 className="text-3xl md:text-4xl lg:text-5xl font-bold mb-3">{movieName}</h1>

            <div className="flex flex-wrap items-center text-sm text-gray-300 mb-6">
              {releaseYear && <span className="mr-3">{releaseYear}</span>}
              {runtime && <span className="mr-3">{runtime}</span>}
              {movieData.contentRatings && movieData.contentRatings.length > 0 && (
                <span className="mr-3 bg-netflix-red/80 px-2 py-0.5 rounded text-xs">
                  {movieData.contentRatings[0].name}+
                </span>
              )}
            </div>

            <div className="flex flex-wrap items-center gap-2 my-4">
              {movieData.genres &&
                movieData.genres.map((genre: any) => (
                  <Link
                    key={genre.id}
                    to={`/movies?genre=${genre.name}`}
                    className="px-3 py-1 bg-netflix-gray/20 rounded-full text-sm hover:bg-netflix-gray/40 transition"
                  >
                    {genre.name}
                  </Link>
                ))}
            </div>

            <p className="text-gray-300 mb-8 max-w-3xl">{overview}</p>

            <div className="flex flex-wrap gap-3 mb-8">
              <Link
                to={`/movie/${encodeURIComponent(title!)}/watch`}
                className="flex items-center px-6 py-2 rounded bg-netflix-red text-white font-semibold hover:bg-red-700 transition"
              >
                <Play className="w-5 h-5 mr-2" /> Play
              </Link>

              <button className="flex items-center px-4 py-2 rounded bg-gray-700 text-white hover:bg-gray-600 transition">
                <Plus className="w-5 h-5 mr-2" /> My List
              </button>

              <button className="flex items-center justify-center w-10 h-10 rounded-full bg-gray-700 text-white hover:bg-gray-600 transition">
                <ThumbsUp className="w-5 h-5" />
              </button>

              <button className="flex items-center justify-center w-10 h-10 rounded-full bg-gray-700 text-white hover:bg-gray-600 transition">
                <Share2 className="w-5 h-5" />
              </button>
            </div>

            {/* Additional details */}
            <div className="mb-6">
              {movieData.translations?.nameTranslations?.find((t: any) => t.isPrimary) && (
                <p className="text-gray-400 italic mb-4">
                  "{movieData.translations.nameTranslations.find((t: any) => t.isPrimary).tagline}"
                </p>
              )}

              <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
                {movieData.production_companies && movieData.production_companies.length > 0 && (
                  <div>
                    <h3 className="text-gray-400 font-semibold mb-1">Production</h3>
                    <p className="text-white">
                      {movieData.production_companies.map((company: any) => company.name).join(', ')}
                    </p>
                  </div>
                )}

                {movieData.spoken_languages && movieData.spoken_languages.length > 0 && (
                  <div>
                    <h3 className="text-gray-400 font-semibold mb-1">Languages</h3>
                    <p className="text-white">{movieData.spoken_languages.join(', ')}</p>
                  </div>
                )}
              </div>
            </div>
          </div>
        </div>

        {/* Similar Movies */}
        {similarMovies.length > 0 && (
          <div className="mt-16">
            <ContentRow title="More Like This" items={similarMovies} />
          </div>
        )}
      </div>
    </div>
  );
};

export default MovieDetailPage;