using System;
using System.Collections.Generic;
using Xunit;
using Moq;
using FluentAssertions;
using SpotifyAPI.Web;

using Selector;

namespace Selector.Tests
{
    public class EqualTests
    {
        public static IEnumerable<object[]> TrackData => 
        new List<object[]>
        {
            // SAME
            new object[] {
                Helper.FullTrack("1", "1", "1"),
                Helper.FullTrack("1", "1", "1"),
                true
            },
            // WRONG ALBUM
            new object[] {
                Helper.FullTrack("1", "1", "1"),
                Helper.FullTrack("1", "2", "1"),
                false
            },
            // WRONG TRACK
            new object[] {
                Helper.FullTrack("1", "1", "1"),
                Helper.FullTrack("2", "1", "1"),
                false
            },
            // WRONG ARTIST
            new object[] {
                Helper.FullTrack("1", "1", "1"),
                Helper.FullTrack("1", "1", "2"),
                false
            },
            // WRONG TRACK/ARTIST
            new object[] {
                Helper.FullTrack("1", "1", "1"),
                Helper.FullTrack("2", "1", "2"),
                false
            },
            // RIGHT MULTIPLE ARTISTS
            new object[] {
                Helper.FullTrack("1", "1", new List<string>() { "1", "2" }),
                Helper.FullTrack("1", "1", new List<string>() { "1", "2" }),
                true
            },
            // WRONG ARTISTS
            new object[] {
                Helper.FullTrack("1", "1", new List<string>() { "1", "2" }),
                Helper.FullTrack("1", "1", new List<string>() { "1" }),
                false
            }
        };

        [Theory]
        [MemberData(nameof(TrackData))]
        public void TrackEquality(FullTrack track1, FullTrack track2, bool shouldEqual)
        {
            var eq = Equal.String();
            eq.IsEqual<FullTrack>(track1, track2).Should().Be(shouldEqual);
        }

        public static IEnumerable<object[]> AlbumData =>
        new List<object[]>
        {
            // SAME
            new object[] {
                Helper.SimpleAlbum("1", "1"),
                Helper.SimpleAlbum("1", "1"),
                true
            },
            // DIFFERENT NAME
            new object[] {
                Helper.SimpleAlbum("1", "1"),
                Helper.SimpleAlbum("2", "1"),
                false
            },
            // DIFFERENT ARTIST
            new object[] {
                Helper.SimpleAlbum("1", "1"),
                Helper.SimpleAlbum("1", "2"),
                false
            },
            // SAME ARTISTS
            new object[] {
                Helper.SimpleAlbum("1", new List<string>() { "1", "2" }),
                Helper.SimpleAlbum("1", new List<string>() { "1", "2" }),
                true
            },
            // DIFFERENT ARTISTS
            new object[] {
                Helper.SimpleAlbum("1", new List<string>() { "1", "2" }),
                Helper.SimpleAlbum("1", new List<string>() { "1" }),
                false
            },
        };

        [Theory]
        [MemberData(nameof(AlbumData))]
        public void AlbumEquality(SimpleAlbum album1, SimpleAlbum album2, bool shouldEqual)
        {
            var eq = Equal.String();
            eq.IsEqual<SimpleAlbum>(album1, album2).Should().Be(shouldEqual);
        }

        public static IEnumerable<object[]> ArtistData =>
        new List<object[]>
        {
            // SAME
            new object[] {
                Helper.SimpleArtist("1"),
                Helper.SimpleArtist("1"),
                true
            },
            // DIFFERENT
            new object[] {
                Helper.SimpleArtist("1"),
                Helper.SimpleArtist("2"),
                false
            }
        };

        [Theory]
        [MemberData(nameof(ArtistData))]
        public void ArtistEquality(SimpleArtist artist1, SimpleArtist artist2, bool shouldEqual)
        {
            var eq = Equal.String();
            eq.IsEqual<SimpleArtist>(artist1, artist2).Should().Be(shouldEqual);
        }

        public static IEnumerable<object[]> EpisodeData =>
        new List<object[]>
        {
            // SAME
            new object[] {
                Helper.FullEpisode("1"),
                Helper.FullEpisode("1"),
                true
            },
            // DIFFERENT
            new object[] {
                Helper.FullEpisode("1"),
                Helper.FullEpisode("2"),
                false
            }
        };

        [Theory]
        [MemberData(nameof(EpisodeData))]
        public void EpisodeEquality(FullEpisode episode1, FullEpisode episode2, bool shouldEqual)
        {
            var eq = Equal.String();
            eq.IsEqual<FullEpisode>(episode1, episode2).Should().Be(shouldEqual);
        }
    }
}