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

public class LevelsManager : NetworkBehaviour
{

    public float pipeVerticalOffsetRange = 1.8f;
    public GameObject pipePrefab;
    public Transform pipeSpawnPoint;
    public float distanceBetweenPipes = 5f;
    public float pipeOpeningSpace= -1f;
    public static float pipeMovingSpeed = 3f;
    public float pipeDestroyDistance = -10f;
    public List<GameObject> spawnedPipes = new List<GameObject>();
    float pipeSpawnTimer = 0;
    public float pipeSpawnInterval => distanceBetweenPipes/pipeMovingSpeed;

    void Update()
    {
        if(!isServer){return;}

        if(!NetGameManager.instance.playerSpawned) return;
        CheckAndRemovePipes();

        if(pipeSpawnTimer < pipeSpawnInterval){
            pipeSpawnTimer += Time.deltaTime;
            pipeOpeningSpace+=Time.deltaTime / 120f;

            return;
        }

        pipeSpawnTimer = 0f;

        SpawnPipe();
    }


    void CheckAndRemovePipes(){
        foreach(GameObject pipe in spawnedPipes){
            if(pipe.transform.position.x < pipeDestroyDistance){
                spawnedPipes.Remove(pipe);
                NetworkServer.Destroy(pipe);
            }
        }
    }


    void SpawnPipe(){
        float verticalOffset =Random.Range(-pipeVerticalOffsetRange, pipeVerticalOffsetRange);
        GameObject pipe = Instantiate(pipePrefab, pipeSpawnPoint.position + new Vector3(0, verticalOffset, 0), Quaternion.identity);
        NetworkServer.Spawn(pipe);
        Pipe pipeScript = pipe.GetComponent<Pipe>();
        pipeScript.Setup(pipeSpawnPoint.position.x, pipeOpeningSpace);
        spawnedPipes.Add(pipe);
    }
}