using JetBrains.Annotations;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class HitboxController : MonoBehaviour {
    public BoxCollider2D boxCollider; // Pass-thru reference
    public CircleCollider2D circleCollider; // Pass-thru reference

    [SerializeField] private GameObject hitEffect;

    [SerializeField] public float activeTime = 1.0f; // Seconds
    [SerializeField] public float damageTick = 0.08f; // Seconds
    public int maxMonstersHit = 1;
    public int numLines = 1;
    public float damageMultiplier = 1.0f;

    [SerializeField] public bool flip = false;
    [SerializeField] public AudioClip hitClip;
    [SerializeField] public AudioClip tickClip;

    private int numMonstersHit = 0;

    // Start is called before the first frame update
    void Start() {
        // boxCollider = GetComponent<BoxCollider2D>();
        // circleCollider = GetComponent<CircleCollider2D>();
        Invoke("Die", activeTime);
    }

    public void Setup(int maxMonstersHit, int numLines, float damageMultiplier) {
        this.maxMonstersHit = maxMonstersHit;
        this.numLines = numLines;
        this.damageMultiplier = damageMultiplier;
    }

    private void OnTriggerEnter2D(Collider2D collision) {
        Debug.Log("Entered collision");
        // If the hitbox collides with a monster...
        if (collision.gameObject.CompareTag("Monster") && numMonstersHit < maxMonstersHit) {
            // Do nothing if the monster is still spawning.
            if (collision.GetComponent<MonsterController>().isSpawning) {
                return;
            }
            // Calculate the damage dealt against the monster and generate damage lines.
            float BASE_DAMAGE = State.state.stats.cache.baseDamage;
            float STABILITY = State.state.stats.cache.totalStb;
            float MIN_MULTIPLIER = 0.5f + 0.4f * Mathf.Min(STABILITY, 100f) / 100f;
            List<float> finalDamageLines = new List<float>();
            for (int i = 0; i < numLines; i++) {
                finalDamageLines.Add(BASE_DAMAGE * damageMultiplier * Random.Range(MIN_MULTIPLIER, 1.0f));
            };
            bool hit = collision.gameObject.GetComponent<DamageController>().IssueDamage(finalDamageLines, damageTick, !flip, hitClip, tickClip);
            if (hit) {
                numMonstersHit += 1;
                GameObject effect = Instantiate(hitEffect);
                Destroy(effect, 5f);
                effect.transform.position = collision.transform.position;
                if (numMonstersHit >= maxMonstersHit) {
                    Destroy(gameObject);
                }
            }
        }
    }

    public void Die() {
        Destroy(gameObject);
    }
}