using System;
using TMPro;
using UnityEngine;

public class ShipPlacementTimer : MonoBehaviour
{
    [SerializeField] private float timeLimit = 120f;
    [SerializeField] private TMP_Text timerText;

    public event Action TimerExpired;

    private float timeLeft;
    private bool isRunning;

    public void StartTimer()
    {
        timeLeft = timeLimit;
        isRunning = true;
        UpdateTimerText();
    }

    public void StopTimer()
    {
        isRunning = false;

        if (timerText != null)
            timerText.text = string.Empty;
    }

    private void Update()
    {
        if (!isRunning)
            return;

        timeLeft -= Time.deltaTime;

        if (timeLeft <= 0f)
        {
            timeLeft = 0f;
            isRunning = false;
            UpdateTimerText();
            TimerExpired?.Invoke();
            return;
        }

        UpdateTimerText();
    }

    private void UpdateTimerText()
    {
        if (timerText == null)
            return;

        TimeSpan time = TimeSpan.FromSeconds(Mathf.CeilToInt(timeLeft));
        timerText.text = time.ToString(@"mm\:ss");
    }
}