using System.Collections.Generic;

namespace Wizard;

public class AIEvoHeal : AIEvoTagArgument
{
	private AIPolishConvertedExpression _healAmount;

	private readonly int HEAL_VALUE_ARG_INDEX = 1;

	protected override int SELECT_TYPE_OFFSET => 2;

	public AIEvoHeal(string text)
		: base(text)
	{
	}

	protected override void InitExpressions(string text)
	{
		base.InitExpressions(text);
		_healAmount = _exprList[_exprList.Count - HEAL_VALUE_ARG_INDEX];
	}

	public override void Execute(AIVirtualCard tagOwner, AIVirtualField field, List<int> playPtn, AISituationInfo situation = null)
	{
		List<AIVirtualCard> targetsFromField = GetTargetsFromField(tagOwner, field, playPtn, situation);
		if (targetsFromField != null && targetsFromField.Count > 0)
		{
			int heal = (int)_healAmount.EvalArg(tagOwner, playPtn, tagOwner.SelfField);
			switch (base.SelectType)
			{
			case AIScriptTokenArgType.ALL_SELECT:
				AISkillSimulationUtility.HealAll(targetsFromField, field, heal, playPtn, situation);
				break;
			case AIScriptTokenArgType.TARGET_SELECT:
			case AIScriptTokenArgType.SECOND_TARGET_SELECT:
				AISkillSimulationUtility.HealTarget(situation, field, base.SelectType, heal);
				break;
			case AIScriptTokenArgType.RANDOM_MULTI_SELECT:
				break;
			}
		}
	}

	public override bool IsTargetGoingToDie(AIVirtualCard owner, AIVirtualCard candidate, AISituationInfo situation)
	{
		return false;
	}

	protected override List<AIVirtualCard> GetBaseFilteringCards(List<AIVirtualCard> candidates, AIVirtualCard tagOwner, AIVirtualField field, List<int> playPtn, AISituationInfo situation, bool isBlockDead)
	{
		return AIFilteringUtility.FilteringForStatusEffectiveAbility(candidates, tagOwner, base.Filters, playPtn, situation, isAttackEffective: false, isBlockDead: true);
	}

	protected override void CreateLegalSelectTypes()
	{
		base.LegalSelectTypes = new AIScriptTokenArgType[3]
		{
			AIScriptTokenArgType.ALL_SELECT,
			AIScriptTokenArgType.TARGET_SELECT,
			AIScriptTokenArgType.SECOND_TARGET_SELECT
		};
	}
}
