using Shared.Engine;
using Shared.Models.Base;
using System.Text.Json;
using System.Text.Json.Serialization;

namespace Shared.Models.Templates
{
    public static class VideoTpl
    {
        public static string ToJson(string method, string url, string title, in StreamQualityTpl? streamquality = null, in SubtitleTpl? subtitles = null, string quality = null, VastConf vast = null, List<HeadersModel> headers = null, int? hls_manifest_timeout = null, in SegmentTpl? segments = null, string subtitles_call = null)
        {
            var _vast = vast ?? AppInit.conf.vast;

            return JsonSerializer.Serialize(new VideoDto(
                title,
                method,
                url,
                Http.NormalizeHeaders(headers),
                streamquality?.ToObject(emptyToNull: true)
                    ?? new Dictionary<string, string>(
                        [new KeyValuePair<string, string>(quality ?? "auto", url)]
                    ),
                subtitles?.ToObject(emptyToNull: true),
                subtitles_call,
                hls_manifest_timeout,
                _vast?.url != null ? _vast : _vast,
                segments?.ToObject()
            ), VideoJsonContext.Default.VideoDto);
        }
    }


    [JsonSourceGenerationOptions(
        DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingDefault
    )]
    [JsonSerializable(typeof(VideoDto))]
    [JsonSerializable(typeof(Dictionary<string, string>))]
    [JsonSerializable(typeof(Dictionary<string, List<SegmentDto>>))]
    [JsonSerializable(typeof(SubtitleDto))]
    [JsonSerializable(typeof(List<SubtitleDto>))]
    [JsonSerializable(typeof(VastConf))]
    [JsonSerializable(typeof(SegmentDto))]
    [JsonSerializable(typeof(List<SegmentDto>))]
    public partial class VideoJsonContext : JsonSerializerContext
    {
    }

    public readonly struct VideoDto
    {
        public string title { get; }
        public string method { get; }
        public string url { get; }
        public Dictionary<string, string> headers { get; }
        public Dictionary<string, string> quality { get; }
        public IReadOnlyList<SubtitleDto> subtitles { get; }
        public string subtitles_call { get; }
        public int? hls_manifest_timeout { get; }
        public VastConf vast { get; }
        public Dictionary<string, IReadOnlyList<SegmentDto>> segments { get; }

        [JsonConstructor]
        public VideoDto(
            string title,
            string method,
            string url,
            Dictionary<string, string> headers,
            Dictionary<string, string> quality,
            IReadOnlyList<SubtitleDto> subtitles,
            string subtitles_call,
            int? hls_manifest_timeout,
            VastConf vast,
            Dictionary<string, IReadOnlyList<SegmentDto>> segments)
        {
            this.method = method;
            this.url = url;
            this.headers = headers;
            this.quality = quality;
            this.subtitles = subtitles;
            this.subtitles_call = subtitles_call;
            this.title = title;
            this.hls_manifest_timeout = hls_manifest_timeout;
            this.vast = vast;
            this.segments = segments;
        }
    }
}