using System;
using System.Collections.Generic;
using RobotAndDonkey.Game.Board;
using RobotAndDonkey.Game.Data;
using RobotAndDonkey.Game.Execution.Results;
using RobotAndDonkey.Game.GameState;
using RobotAndDonkey.Game.Intents;
using RobotAndDonkey.Game.Modifiers;
using RobotAndDonkey.Game.Pois;
using RobotAndDonkey.Game.Utils;

namespace RobotAndDonkey.Game.Cards.Patches;

public record Repeat() : PatchCard(ECard.Repeat, Balancing.Instance.RepeatCost, 0, ERarity.Legendary)
{
    protected override void CreateIntents(Cell avatarCell, Avatar avatar, CoreLoop coreLoop, Guid requestId, List<Intent> intents, List<Result> results)
    {
        var tape = coreLoop.GetTapeCards();
        var index = tape.IndexOf(this);
        if (index < 0)
        {
            results.Add(new InvalidInstructionResult(requestId, EInvalidReason.NotFound, this, avatarCell));
            return;
        }

        var targetIndex = CardExtensions.NextIndexConsideringCorruption(index, coreLoop);
        if (targetIndex < 0 || targetIndex >= tape.Count)
        {
            results.Add(new InvalidInstructionResult(requestId, EInvalidReason.OutOfBounds, this, avatarCell));
            return;
        }

        var targetCard = tape[targetIndex];
        if (!m_RepeatedCards.Add(targetCard))
        {
            results.Add(new InvalidInstructionResult(requestId, EInvalidReason.AlreadyExecuted, this, avatarCell));
            return;
        }

        targetCard.CreateIntents(avatarCell, coreLoop, requestId, intents, results);
        m_RepeatedCards.Remove(targetCard);
    }

    public override string ToolTip => "Behaves exactly like the next instruction.";

    private readonly HashSet<Card> m_RepeatedCards = [];
}