using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using UnityEngine;

namespace DDD
{
    public class TabUiController : MonoBehaviour
    {
        private List<TabUi> _tabUis;
        private TaskCompletionSource<bool> _isInitialized = new();

        private void Awake()
        {
            var tabUiChildren = GetComponentsInChildren<TabUi>();
            _tabUis = new List<TabUi>(tabUiChildren);
            foreach (var tabUi in _tabUis)
            {
                tabUi.Initialize();
            }
            _isInitialized.SetResult(true);
        }

        public async void SelectedTab(TabUi selectedTabUi)
        {
            await _isInitialized.Task;
            
            foreach (var tabUi in _tabUis)
            {
                bool shouldBeActive = tabUi == selectedTabUi;

                if (tabUi.IsOn != shouldBeActive)
                {
                    tabUi.TabContentsSetActive(shouldBeActive);
                }
            }
        }
        
        public void ActivateFirstTab()
        {
            if (_tabUis == null || _tabUis.Count == 0) return;

            SelectedTab(_tabUis[0]);
        }
    }
}