namespace PkmnLib.Plugin.Gen7.Scripts.Weather;

[Script(ScriptCategory.Weather, "rain")]
public class Rain : Script, ILimitedTurnsScript, IScriptChangeBasePower, IScriptOnEndTurn, IScriptChangeAccuracy
{
    private int? _duration;

    /// <inheritdoc />
    public int TurnsRemaining => _duration ?? 0;

    /// <inheritdoc />
    public void SetTurns(int turns)
    {
        _duration = turns;
    }

    /// <inheritdoc />
    public virtual void OnEndTurn(IScriptSource owner, IBattle battle)
    {
        _duration--;
        if (_duration <= 0)
        {
            battle.SetWeather(null, 0);
        }
    }

    /// <inheritdoc />
    public void ChangeBasePower(IExecutingMove move, IBattlePokemon target, byte hit, ref ushort basePower)
    {
        var hitType = move.GetHitData(target, hit).Type;
        if (hitType?.Name == TypeNames.Water)
        {
            // Increase Water-type move power by 50% in rain
            basePower = (ushort)(basePower * 1.5);
        }
        else if (hitType?.Name == TypeNames.Fire)
        {
            // Decrease Fire-type move power by 50% in rain
            basePower = (ushort)(basePower * 0.5);
        }
    }

    // These moves are not part of the gen 7 data files, so no generated constants exist for them.
    private static readonly StringKey BleakwindStormName = "bleakwind_storm";
    private static readonly StringKey WindboltStormName = "windbolt_storm";
    private static readonly StringKey SandsearStormName = "sandsear_storm";

    /// <inheritdoc />
    public void ChangeAccuracy(IExecutingMove executingMove, IBattlePokemon target, byte hitIndex,
        ref int modifiedAccuracy)
    {
        var moveName = executingMove.UseMove.Name;
        if (moveName == MoveNames.Thunder || moveName == MoveNames.Hurricane || moveName == BleakwindStormName ||
            moveName == WindboltStormName || moveName == SandsearStormName)
        {
            modifiedAccuracy = 1000;
        }
    }
}