using PkmnLib.Dynamic.Models;
using PkmnLib.Static;

namespace PkmnLib.Dynamic.ScriptHandling;

public class ProxyScript : Script
{
    public delegate void ChangeOffensiveStatValueEventHandler(IExecutingMove move, IPokemon target, byte hit,
        uint defensiveStat, ImmutableStatisticSet<uint> targetStats, ref uint value);

    private readonly List<(Script, ChangeOffensiveStatValueEventHandler)> _changeOffensiveStatValueEvents = new();

    public void AddChangeOffensiveStatValueEvent(Script script, ChangeOffensiveStatValueEventHandler handler)
    {
        _changeOffensiveStatValueEvents.Add((script, handler));
        script.OnRemoveEvent += OnRemoveScriptEvent;
    }

    private void OnRemoveScriptEvent(Script script)
    {
        _changeOffensiveStatValueEvents.RemoveAll(x => x.Item1 == script);
    }

    /// <inheritdoc />
    public override void ChangeOffensiveStatValue(IExecutingMove move, IPokemon target, byte hit, uint defensiveStat,
        ImmutableStatisticSet<uint> targetStats, ref uint value)
    {
        foreach (var (script, handler) in _changeOffensiveStatValueEvents)
        {
            if (!script.IsSuppressed)
            {
                handler(move, target, hit, defensiveStat, targetStats, ref value);
            }
        }
    }
}