using PkmnLib.Plugin.Gen7.Scripts.Utils;

namespace PkmnLib.Plugin.Gen7.Scripts.Moves;

/// <summary>
/// Mimic copies the target's last used move into the move slot Mimic occupies, with 5 PP, until the user
/// leaves the field. It fails if the target has not used a move, if that move is Sketch, Transform, Struggle,
/// Metronome, or Chatter, or if the user already knows it.
///
/// <see href="https://bulbapedia.bulbagarden.net/wiki/Mimic_(move)">Bulbapedia - Mimic</see>
/// </summary>
[Script(ScriptCategory.Move, "mimic")]
public class Mimic : Script, IScriptOnSecondaryEffect
{
    /// <inheritdoc />
    public void OnSecondaryEffect(IExecutingMove move, IPokemon target, byte hit)
    {
        var moveSlot = move.User.Moves.IndexOf(move.ChosenMove);
        if (moveSlot == -1)
        {
            move.GetHitData(target, hit).Fail();
            return;
        }

        var lastMove = target.BattleData?.LastMoveChoice;
        if (lastMove == null || !lastMove.ChosenMove.MoveData.CanCopyMove())
        {
            move.GetHitData(target, hit).Fail();
            return;
        }

        var copiedMoveName = lastMove.ChosenMove.MoveData.Name;
        if (move.User.Moves.Any(m => m?.MoveData.Name == copiedMoveName))
        {
            move.GetHitData(target, hit).Fail();
            return;
        }

        move.User.LearnTemporaryMove(copiedMoveName, MoveLearnMethod.Mimic, (byte)moveSlot);
        // The copied move only has 5 PP, or its own maximum PP if that is lower.
        move.User.Moves[moveSlot]?.SetCurrentPP(5);
    }
}