using YandexMusic.API.Models.Playlist;
using YandexMusic.API.Models.Ugc;
using YandexMusic.API.Requests.Ugc;

namespace YandexMusic.API;

/// <summary>API для загрузки пользовательского контента (UGC).</summary>
public class YUgcAPI : YCommonAPI
{
    public YUgcAPI(YandexMusicApi api) : base(api) { }

    public Task<YUgcUpload?> GetUgcUploadLinkAsync(YPlaylist playlist, string fileName)
        => new YUgcGetUploadLinkBuilder(Api).ExecuteAsync((playlist, fileName));

    public async Task<string?> UploadTrackToPlaylistAsync(YPlaylist playlist, string fileName, string filePath)
    {
        if (!File.Exists(filePath))
            throw new FileNotFoundException("Файл не найден", filePath);
        return await UploadTrackToPlaylistAsync(playlist, fileName, await File.ReadAllBytesAsync(filePath));
    }

    public async Task<string?> UploadTrackToPlaylistAsync(YPlaylist playlist, string fileName, Stream stream)
    {
        using var ms = new MemoryStream();
        await stream.CopyToAsync(ms);
        return await UploadTrackToPlaylistAsync(playlist, fileName, ms.ToArray());
    }

    public async Task<string?> UploadTrackToPlaylistAsync(YPlaylist playlist, string fileName, byte[] file)
    {
        var uploadLink = await GetUgcUploadLinkAsync(playlist, fileName);
        if (uploadLink?.PostTarget == null) return null;
        var result = await new YUgcUploadBuilder(Api).ExecuteAsync((uploadLink.PostTarget, file));
        return result?.Result;
    }
}