using System.Linq;
using EmbyToolbox.Services;

namespace EmbyToolbox.ViewModels;

/// <summary>Списки для ComboBox в окне настроек (синхронизированы с MainWindowViewModel).</summary>
public sealed class ConversionFormOptions
{
    public List<string> ContainerOptions { get; } = ["MKV", "MP4", "MOV", "WEBM"];
    public List<string> VideoCodecOptions { get; } = ["H.264", "H.265", "AV1", "Copy"];
    public List<string> PixelFormatOptions { get; } = ["yuv420p", "yuv420p10le", "yuv422p", "yuv444p"];
    public List<string> ResolutionOptions { get; } = ["Без изменений", "Максимум 2160p", "Максимум 1440p", "Максимум 1080p", "Максимум 720p"];
    public List<string> FpsOptions { get; } = ["Без изменений", "Максимум 60", "Максимум 30", "Максимум 25", "Максимум 24"];
    public List<string> AudioCodecOptions { get; } = ["AAC", "AC3", "EAC3", "Opus", "MP3", "FLAC", "Copy"];
    public List<string> AudioBitrateKbps { get; } = ["96 kbps", "128 kbps", "160 kbps", "192 kbps", "256 kbps", "320 kbps"];
    public List<string> VideoBitrateModeOptions { get; } = VideoBitratePolicy.UiOptions.ToList();

    internal void RestoreListsFromSerialized(IReadOnlyList<string>? containers,
        IReadOnlyList<string>? video,
        IReadOnlyList<string>? pixel,
        IReadOnlyList<string>? resolution,
        IReadOnlyList<string>? fps,
        IReadOnlyList<string>? audioBitrate,
        IReadOnlyList<string>? videoBitrateMode)
    {
        ReplaceList(ContainerOptions, containers);
        ReplaceList(VideoCodecOptions, video);
        ReplaceList(PixelFormatOptions, pixel);
        ReplaceList(ResolutionOptions, resolution);
        ReplaceList(FpsOptions, fps);
        ReplaceList(AudioBitrateKbps, audioBitrate);
        ReplaceList(VideoBitrateModeOptions, videoBitrateMode);
    }

    private static void ReplaceList(List<string> target, IReadOnlyList<string>? source)
    {
        if (source is null || source.Count == 0)
        {
            return;
        }

        target.Clear();
        foreach (var s in source)
        {
            if (!string.IsNullOrWhiteSpace(s))
            {
                target.Add(s.Trim());
            }
        }
    }
}