using System;
using System.Collections.Generic;
using PkmnLib.Static;
using PkmnLib.Static.Utils;

namespace PkmnLib.Plugin.Gen7.Scripts.Moves;

public abstract class ChangeTargetStats : Script
{
    private readonly Statistic _stat;
    private sbyte _amount;

    protected ChangeTargetStats(Statistic stat)
    {
        _stat = stat;
    }

    /// <inheritdoc />
    public override void OnInitialize(IReadOnlyDictionary<StringKey, object?>? parameters)
    {
        if (parameters == null)
        {
            throw new ArgumentNullException(nameof(parameters));
        }

        if (!parameters.TryGetValue("amount", out var amount) || amount == null)
        {
            throw new ArgumentException("Parameter 'amount' is required.");
        }

        _amount = (sbyte)(int)amount;
    }

    /// <inheritdoc />
    public override void OnSecondaryEffect(IExecutingMove move, IPokemon target, byte hit)
    {
        target.ChangeStatBoost(_stat, _amount, target == move.User);
    }
}

[Script(ScriptCategory.Move, "change_target_attack")]
public class ChangeTargetAttack : ChangeTargetStats
{
    public ChangeTargetAttack() : base(Statistic.Attack)
    {
    }
}

[Script(ScriptCategory.Move, "change_target_defense")]
public class ChangeTargetDefense : ChangeTargetStats
{
    public ChangeTargetDefense() : base(Statistic.Defense)
    {
    }
}

[Script(ScriptCategory.Move, "change_target_special_attack")]
public class ChangeTargetSpecialAttack : ChangeTargetStats
{
    public ChangeTargetSpecialAttack() : base(Statistic.SpecialAttack)
    {
    }
}

[Script(ScriptCategory.Move, "change_target_special_defense")]
public class ChangeTargetSpecialDefense : ChangeTargetStats
{
    public ChangeTargetSpecialDefense() : base(Statistic.SpecialDefense)
    {
    }
}

[Script(ScriptCategory.Move, "change_target_speed")]
public class ChangeTargetSpeed : ChangeTargetStats
{
    public ChangeTargetSpeed() : base(Statistic.Speed)
    {
    }
}