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

public class DungeonStoneWall : MonoBehaviour, IBreakable
{
    [SerializeField] private GameObject healthyVisual;
    [SerializeField] private GameObject damagedVisual;

    [SerializeField] private ParticleSystem hitEffect;
    [SerializeField] private ParticleSystem damageEffect;
    [SerializeField] private ParticleSystem breakingEffect;

    [SerializeField] private int hitsNeededFromNormalToDamaged;
    [SerializeField] private int hitsNeededFromDamagedToBreak;

    [SerializeField] private GameEvent onWallBroken;

    NavMeshObstacle obstacle;
    Collider collider;

    private int receivedHits = 0;

    bool isBroken = false;
    bool isDamaged = false;

    Coroutine stateChangeRoutine;

    private void Awake()
    {
        receivedHits = 0;
        isDamaged = false;
        isBroken = false;

        obstacle = GetComponent<NavMeshObstacle>();
        collider = GetComponent<Collider>();
    }

    private void Start()
    {
        SetHealthyVisual();
    }

    [ContextMenu("DebugHit")]
    public void Hit()
    {
        if (isBroken) return;

        receivedHits++;

 
        PlayDamageEffect();

        if (receivedHits >= hitsNeededFromNormalToDamaged)
            Damage();

        if (receivedHits >= hitsNeededFromDamagedToBreak)
            Break();
    }

    public void Damage()
    {
        PlayDamageEffect();
        if (isDamaged) return;

        stateChangeRoutine = StartCoroutine(SetStateWithDelay(BreakableState.Damaged, 0.2f));
        isDamaged = true;
    }

    public void Break()
    {
        isBroken = true;

        PlayBreakingEffect();

        if (stateChangeRoutine != null)
        {
            StopCoroutine(stateChangeRoutine);
            stateChangeRoutine = null;
        }

        stateChangeRoutine = StartCoroutine(SetStateWithDelay(BreakableState.Broken, 0.2f));

        obstacle.enabled = false;
        collider.enabled = false;

        onWallBroken.Raise();
    }


    private void PlayHitEffect()
    {
        hitEffect.Play();
    }
    private void PlayDamageEffect()
    {
        damageEffect.Play();
    }
    private void PlayBreakingEffect()
    {
        breakingEffect.Play();
    }

    IEnumerator SetStateWithDelay(BreakableState state, float delay)
    {
        yield return new WaitForSeconds(delay);

        switch (state)
        {
            case BreakableState.Healthy:
                SetHealthyVisual();
                break;
            case BreakableState.Damaged:
                SetDamagedVisual();
                break;
            case BreakableState.Broken:
                SetBrokenVisual();
                break;
            default:
                break;
        }
    }

    private void SetHealthyVisual()
    {
        healthyVisual.SetActive(true);
        damagedVisual.SetActive(false);
    }
    private void SetDamagedVisual()
    {
        healthyVisual.SetActive(false);
        damagedVisual.SetActive(true);
    }
    private void SetBrokenVisual()
    {
        PlayHitEffect();
        healthyVisual.SetActive(false);
        damagedVisual.SetActive(false);
    }


}

public enum BreakableState
{
    Healthy,
    Damaged,
    Broken
}