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

public class BossWebSpawner : MonoBehaviour, IPauseable
{
    [SerializeField] private GameObject warningMarkerPrefab;
    [SerializeField] private GameObject webPrefab;
    [field: SerializeField] public float WebAvoidanceRadius { get; private set; } = 2.5f;

    public List<Vector3> ActiveWebPositions { get; private set; } = new List<Vector3>();
    private bool isPaused;

    private void Start()
    {
        if (WorldPauseManager.Instance != null)
        {
            WorldPauseManager.Instance.Register(this);
        }
    }

    private void OnDestroy()
    {
        if (WorldPauseManager.Instance != null)
        {
            WorldPauseManager.Instance.Unregister(this);
        }
    }

    public void Pause() => isPaused = true;
    public void Resume() => isPaused = false;

    private IEnumerator WaitForUnpausedSeconds(float duration)
    {
        float timer = 0f;
        while (timer < duration)
        {
            if (!isPaused)
            {
                timer += Time.deltaTime;
            }
            yield return null;
        }
    }

    public void SpawnWarningAndWeb(Vector3 targetGroundPos, float delay, float webDuration)
    {
        StartCoroutine(SpawnWebRoutine(targetGroundPos, delay, webDuration));
    }

    private IEnumerator SpawnWebRoutine(Vector3 pos, float delay, float duration)
    {
        ActiveWebPositions.Add(pos);

        GameObject marker = null;
        if (warningMarkerPrefab != null)
        {
            marker = Instantiate(warningMarkerPrefab, pos + new Vector3(0, 0.5f, 0), Quaternion.identity);
        }

        yield return WaitForUnpausedSeconds(delay);

        if (marker != null) Destroy(marker);

        if (webPrefab != null)
        {
            Quaternion webRotation = Quaternion.Euler(270f, 0f, 0f);
            GameObject web = Instantiate(webPrefab, pos + new Vector3(0, 0.5f, 0), webRotation);

            yield return WaitForUnpausedSeconds(duration);

            if (web != null) Destroy(web);
        }
        else
        {
            yield return WaitForUnpausedSeconds(duration);
        }

        ActiveWebPositions.Remove(pos);
    }
}