using System.Linq;
using Lumina.Text;
using Lumina.Text.Payloads;

namespace SourceGenerator {
    internal static class SeStringExtensions {
        internal static string TextValue(this SeString str) {
            var payloads = str.Payloads
                .Select(p => {
                    if (p is TextPayload text) {
                        return p.Data[0] == 0x03 
                            ? text.RawString[1..]
                            : text.RawString;
                    }

                    if (p.Data.Length <= 1) {
                        return "";
                    }

                    if (p.Data[1] == 0x1F) {
                        return "-";
                    }

                    if (p.Data.Length > 2 && p.Data[1] == 0x20) {
                        var value = p.Data.Length > 4
                            ? p.Data[3] - 1
                            : p.Data[2];
                        return ((char) (48 + value)).ToString();
                    }

                    return "";
                });

            return string.Join("", payloads);
        }
    }
}