using Entitas;
using UnityEngine;
using Game;
public class AISystem : IExecuteSystem, IInitializeSystem
{
    private IGroup<GameEntity> _entities;
    public void Initialize()
    {
        _entities = Util.GetGroup(GameMatcher.AI);
    }
    public void Execute()
    {
        foreach (var entity in _entities)
        {
            UpdateAIBlueprint(entity);
            UpdateAIHungry(entity);
        }
    }

    private void UpdateAIHungry(GameEntity entity)
    {
        var ai = entity.aI;
        var hp = entity.hp;
        if (!hp.IsAlive)
        {
            return;
        }
        if (ai.IsHungryFull.Value)
        {
            return;
        }
        if (ai.AttackPermit.Value)
        {
            return;
        }
        var newHungry = ai.Hungry.Value + ai.HungryIncrease * ai.HungryIncreaseRate * Time.deltaTime;
        ai.Hungry.Value = Mathf.Min(ai.HungryMax.Value, newHungry);
        if (ai.Hungry.Value >= ai.HungryMax.Value)
        {
            ai.IsHungryFull.Value = true;
            ai.Hungry.Value = 0;
        }
    }

    private void UpdateAIBlueprint(GameEntity entity)
    {
        var id = entity.iD;
        var ai = entity.aI;
        var skill = entity.skill;
        var hp = entity.hp;
        var buff = entity.buff;
        if (!hp.IsAlive)
        {
            return;
        }
        ai.Data.Entity = entity.ID();
        ai.Data.Owner = entity.Owner();
        ai.Data.Target = entity.Target();
        if (!ai.IsInit)
        {
            ai.IsInit = true;
            Util.RunBp(GameConst.BlueprintAICommon, GameConst.BpEntranceEnter, ai.Data);
            Util.RunBp(id.Data.Blueprint, GameConst.BpEntranceEnter, ai.Data);
        }
        ai.ThinkCdNow -= Time.deltaTime;
        if (ai.ThinkCdNow > 0)
        {
            return;
        }
        ai.ThinkCdNow = ai.ThinkCdMax;
        if (Util.EntityIsStagger(entity))
        {
            return;
        }
        if (skill.IsRunning)
        {
            return;
        }
        Util.RunBp(GameConst.BlueprintAICommon, GameConst.BpEntranceUpdate, ai.Data);
        Util.RunBp(id.Data.Blueprint, GameConst.BpEntranceUpdate, ai.Data);
    }

}