using Newtonsoft.Json;

namespace MinecraftDiscordBot.Models;

public class LuaPackedArray {
    public ref object? this[int i] => ref _items[i];
    private readonly object?[] _items;
    public LuaPackedArray(IDictionary<string, object> packedTable) {
        if (packedTable["n"] is not long n) throw new ArgumentException("No length in packed array!");
        _items = new object?[n];
        for (var i = 0; i < _items.Length; i++)
            _items[i] = packedTable.TryGetValue((i + 1).ToString(), out var val) ? val : null;
    }
    public static LuaPackedArray Deserialize(string value) {
        var dict = JsonConvert.DeserializeObject<Dictionary<string, object>>(value);
        return new LuaPackedArray(dict ?? throw new Exception("Not a packed table (empty object)!"));
    }
    public override string ToString() => _items is { Length: 0 }
        ? "Empty Array"
        : string.Join(", ", _items.Select(i => i is null ? "nil" : i.ToString()));
}