using System.Collections.Generic;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;

namespace Uigenx.Protocol
{
    /// <summary>Every bridge message on the wire: `{ v, t, id?, re?, ts, body }`.</summary>
    public sealed class UgxEnvelope
    {
        [JsonProperty("v")] public int V { get; set; } = UgxJson.ProtocolVersion;

        /// <summary>`family.name`, for example `data.delta`.</summary>
        [JsonProperty("t")] public string T { get; set; }

        /// <summary>Present on requests and events.</summary>
        [JsonProperty("id", NullValueHandling = NullValueHandling.Ignore)]
        public string Id { get; set; }

        /// <summary>Echoes the id of the request this message answers.</summary>
        [JsonProperty("re", NullValueHandling = NullValueHandling.Ignore)]
        public string Re { get; set; }

        [JsonProperty("ts")] public long Ts { get; set; }

        [JsonProperty("body")] public JToken Body { get; set; }

        public T BodyAs<T>() where T : class, new()
            => Body == null ? new T() : Body.ToObject<T>(UgxJson.Serializer);

        public static UgxEnvelope Create(string type, object body, long ts, string id = null, string re = null)
            => new UgxEnvelope
            {
                V = UgxJson.ProtocolVersion,
                T = type,
                Id = id,
                Re = re,
                Ts = ts,
                Body = body == null ? new JObject() : JToken.FromObject(body, UgxJson.Serializer),
            };
    }

    public sealed class UgxErrorBody
    {
        public string Code { get; set; }
        public string Message { get; set; }
        public Dictionary<string, object> Details { get; set; }
    }

    public static class UgxErrorCodes
    {
        public const string VersionMismatch = "version_mismatch";
        public const string Unauthorized = "unauthorized";
        public const string UnknownMessage = "unknown_message";
        public const string BadRequest = "bad_request";
        public const string CompileFailed = "compile_failed";
        public const string ImportFailed = "import_failed";
        public const string RenderFailed = "render_failed";
        public const string NotPlaying = "not_playing";
        public const string Internal = "internal";
    }

    /// <summary>Envelope `t` values. Unity sends the first group and receives the second.</summary>
    public static class UgxMessageTypes
    {
        public const string Hello = "hello";
        public const string SyncResult = "sync.result";
        public const string CompileResult = "compile.result";
        public const string DataSchemaResult = "dataSchema.result";
        public const string DataDelta = "data.delta";
        public const string DataSnapshot = "data.snapshot";
        public const string ActionFired = "action.fired";
        public const string PreviewResult = "preview.result";
        public const string HotReloadResult = "hotReload.result";
        public const string ScreenState = "screen.state";
        public const string Log = "log";
        public const string Pong = "pong";

        public const string Welcome = "welcome";
        public const string SyncBundle = "sync.bundle";
        public const string SyncFile = "sync.file";
        public const string CompileRequest = "compile.request";
        public const string DataSchemaRequest = "dataSchema.request";
        public const string DataSubscribe = "data.subscribe";
        public const string DataUnsubscribe = "data.unsubscribe";
        public const string DataSet = "data.set";
        public const string ActionEmit = "action.emit";
        public const string PreviewRequest = "preview.request";
        public const string HotReloadRequest = "hotReload.request";
        public const string ScreenshotRequest = "screenshot.request";
        public const string Ping = "ping";

        /// <summary>Sent in both directions.</summary>
        public const string Error = "error";
    }
}