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

public class IVBullet : MonoBehaviour
{
    [SerializeField] BoxCollider col;
    [SerializeField] ParticleSystem ptcBullet;

    BattleMgr battleMgr;
    BigInteger biDmg;
    float fCrtDam;
    float Shake;
    int Vibrato;
    int iCrtRate;
    int idNumber;
    int useFrom;

    HashSet<string> targetFilter;
    HashSet<IBattleEntity> damaged = new(); 

    private void FixedUpdate()
    {
        bool isHit = false;
        battleMgr.LoopAllBattleEntities((battleEntity) =>
        {
            if(damaged.Contains(battleEntity))
                return true;

            var entity = battleEntity as Entity;
            if (targetFilter.Contains(entity.tag) && col.bounds.Contains(entity.Position))
            {
                battleEntity.GetDamage(biDmg, fCrtDam, iCrtRate, idNumber);
                damaged.Add(battleEntity);
                ptcPlay();
            }

            return true;
        });

        if(isHit)
        {
            IVCameraController.SShakeCamera(0.2f, Shake, Vibrato);
        }
    }

    private void ptcPlay()
    {
        if(ptcBullet != null)
            ptcBullet.Play();
    }

    public void SetStatus(BattleMgr mgr, BigInteger bidmg, float fcrtdam, int icrtrate, int idnumber, float fshake, int ivibrato, int useFrom = 0)
    {
        battleMgr = mgr;
        biDmg = bidmg;
        fCrtDam = fcrtdam;
        iCrtRate = icrtrate;
        idNumber = idnumber;
        Shake = fshake;
        Vibrato = ivibrato;

        if(targetFilter is null || this.useFrom != useFrom)
        {
            this.useFrom = useFrom;

            if(useFrom == 0)
                targetFilter = new HashSet<string>() { GameProperty.Instance.EnemyTag };
            else
                targetFilter = new HashSet<string>() { GameProperty.Instance.PlayerTag };
        }

        damaged.Clear();
    }
}