using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PlayArea
{
    public delegate void PlayAreaChangedAction();
    public event PlayAreaChangedAction OnPlayAreaChanged;

    private List<BaseCard> heroPermanents;
    private List<BaseCard> monsterPermanents;
    private DefaultsManager mDefaultsManager;

    public PlayArea() {
        this.heroPermanents = new List<BaseCard>();
        this.monsterPermanents = new List<BaseCard>();
        mDefaultsManager = new DefaultsManager();
    }

    public List<BaseCard> GetHeroPermanents() {
        return heroPermanents;
    }

    public void AddPlayedHeroPermanent(BaseCard permanent) {
        this.heroPermanents.Add(permanent);
        TriggerPlayAreaChanged();
    }

    public void RemoveHeroPermanent(BaseCard permanent) {
        this.heroPermanents.Remove(permanent);
        TriggerPlayAreaChanged();
    }

    public void AddPlayedMonsterPermanent(BaseCard permanent) {
        this.monsterPermanents.Add(permanent);
        TriggerPlayAreaChanged();
    }

    public void RemoveMonsterPermanent(BaseCard permanent) {
        this.monsterPermanents.Remove(permanent);
        TriggerPlayAreaChanged();
    }

    public DefaultHeroCard SetupDefault(DefaultEffect effect) {
        DefaultHeroCard previousDefault = mDefaultsManager.Setup(effect);
        if (previousDefault != null) {
            RemoveHeroPermanent(previousDefault);
        }

        AddPlayedHeroPermanent(effect.Card);

        TriggerPlayAreaChanged();
        return previousDefault;
    }

    public IEnumerator UseHeroDefaults(
            BattleHero[] heroes, ParticipantActivity activity,
            DefaultsManager.UseDefaultAction useDefaultAction) {
        yield return mDefaultsManager.UseHeroDefaults(heroes, activity, useDefaultAction);
    }

    private void TriggerPlayAreaChanged() {
        if (OnPlayAreaChanged != null) OnPlayAreaChanged();
    }
}