using Newtonsoft.Json;
using System.Diagnostics;

namespace MinecraftDiscordBot.Models;

[JsonConverter(typeof(ModItemIdJsonConverter))]
[DebuggerDisplay($"{{{nameof(ToString)}(),nq}}")]
public class ModItemId {
    public ModItemId(string name) {
        var colon = name.IndexOf(':');
        if (colon < 0) throw new ArgumentException("Invalid mod item id!", nameof(name));
        ModName = name[..colon];
        ModItem = name[(colon + 1)..];
        if (ToString() != name) throw new InvalidProgramException("Bad Parsing!");
    }
    public override string ToString() => $"{ModName}:{ModItem}";
    public string ModName { get; }
    public string ModItem { get; }

    public class ModItemIdJsonConverter : JsonConverter<ModItemId> {
        public override ModItemId? ReadJson(JsonReader reader, Type objectType, ModItemId? existingValue, bool hasExistingValue, JsonSerializer serializer)
            => reader.Value is string value
                ? new(value)
                : throw new JsonException($"Could not parse mod name with token '{reader.Value}'");
        public override void WriteJson(JsonWriter writer, ModItemId? value, JsonSerializer serializer) {
            if (value is null) writer.WriteNull();
            else writer.WriteValue(value.ToString());
        }
    }
}