#region license
// This file is part of Vocaluxe.
//
// Vocaluxe is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Vocaluxe is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Vocaluxe. If not, see <http://www.gnu.org/licenses/>.
#endregion

using System.Collections.Generic;

// Shared between the song server and the game (linked into Vocaluxe.csproj). Keep it free of dependencies.
// Serialized as camelCase JSON. All paths are relative to the library root and use '/'.
namespace VocaluxeSongServer.Contracts
{
    /// <summary>GET /api/v1/library</summary>
    public sealed class LibraryDto
    {
        /// <summary>Changes whenever any song file is added, removed or changed. Also sent as ETag.</summary>
        public string Version { get; set; } = "";
        public string ScannedAt { get; set; } = "";
        public List<SongDto> Songs { get; set; } = new List<SongDto>();
        /// <summary>All files in the song folders (text files, audio, video, images), downloadable via /api/v1/files/{path}.</summary>
        public List<FileDto> Files { get; set; } = new List<FileDto>();
    }

    public sealed class SongDto
    {
        /// <summary>Stable id, derived from the path of the text file.</summary>
        public string Id { get; set; } = "";
        /// <summary>Path of the UltraStar text file.</summary>
        public string Path { get; set; } = "";
        public string Title { get; set; } = "";
        public string Artist { get; set; } = "";
    }

    public sealed class FileDto
    {
        public string Path { get; set; } = "";
        public long Size { get; set; }
        /// <summary>Last modification, Unix time in milliseconds (UTC).</summary>
        public long Modified { get; set; }
    }

    /// <summary>POST /api/v1/files/bundle: returns the files as a zip archive (entries named by their path).</summary>
    public sealed class BundleRequest
    {
        public List<string> Paths { get; set; } = new List<string>();
    }

    /// <summary>GET /api/v1/sources: where new songs can be found.</summary>
    public sealed class SourceDto
    {
        public string Id { get; set; } = "";
        public string Name { get; set; } = "";
        public string Description { get; set; } = "";
        public bool Enabled { get; set; }
        /// <summary>Why the source is disabled (e.g. missing account), or empty.</summary>
        public string Hint { get; set; } = "";
    }

    /// <summary>GET /api/v1/search?q=...: results of all enabled sources.</summary>
    public sealed class SearchResponse
    {
        public List<SearchResultDto> Results { get; set; } = new List<SearchResultDto>();
        /// <summary>Sources that failed for this search: source id -> error message.</summary>
        public Dictionary<string, string> Errors { get; set; } = new Dictionary<string, string>();
    }

    public sealed class SearchResultDto
    {
        public string Source { get; set; } = "";
        /// <summary>Id of the song within its source; used to download it.</summary>
        public string SourceId { get; set; } = "";
        public string Artist { get; set; } = "";
        public string Title { get; set; } = "";
        /// <summary>Extra info shown with the result (language, year, license, ...).</summary>
        public string Details { get; set; } = "";
        public string CoverUrl { get; set; } = "";
        /// <summary>True if a song with the same artist and title is already in the library.</summary>
        public bool InLibrary { get; set; }
    }

    /// <summary>POST /api/v1/downloads</summary>
    public sealed class DownloadRequest
    {
        public string Source { get; set; } = "";
        public string SourceId { get; set; } = "";
        public string Artist { get; set; } = "";
        public string Title { get; set; } = "";
    }

    /// <summary>GET /api/v1/downloads: queued, running and finished downloads (newest first).</summary>
    public sealed class DownloadJobDto
    {
        public string Id { get; set; } = "";
        public string Source { get; set; } = "";
        public string SourceId { get; set; } = "";
        public string Artist { get; set; } = "";
        public string Title { get; set; } = "";
        /// <summary>queued, running, done or failed</summary>
        public string State { get; set; } = "";
        /// <summary>0..1</summary>
        public double Progress { get; set; }
        public string Message { get; set; } = "";
        public string Created { get; set; } = "";
    }
}