using System;
using System.Drawing;
using System.Text.Json;
using System.Text.Json.Serialization;

namespace FizzyLauncher.Text.Json
{
    public class JsonPointConverter : JsonConverter<Point>
    {
        public override Point Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
        {
            Point rs = new Point(0, 0);

            if (reader.TokenType == JsonTokenType.String)
            {
                string[] parts = reader.GetString().Split(',');
                if (parts.Length != 2)
                {
                    return rs;
                }

                int x = 0;
                int y = 0;

                if (!int.TryParse(parts[0].Trim(), out x)) x = 0;
                if (!int.TryParse(parts[1].Trim(), out y)) y = 0;

                return new Point(x, y);
            }

            return rs;
        }

        public override void Write(Utf8JsonWriter writer, Point value, JsonSerializerOptions options)
        {
            writer.WriteStringValue(string.Format("{0}, {1}", value.X.ToString(), value.Y.ToString()));
        }

    }
}