using System.Collections.Generic;
using Data;
using Managers;
using UnityEngine;

namespace UI
{
    public class StartPlayUI : FullScreenUI
    {
        public Transform iconList;

        public MapViewUI mapViewUIPrefab;
        public List<MapViewUI> mapViewUIList = new();

        private int _currentIndex;

        public int CurrentDimensionIndex
        {
            get => _currentIndex;
            set
            {
                _currentIndex = value;
                if (_currentIndex < 0)
                    _currentIndex += mapViewUIList.Count;
                else if (_currentIndex >= mapViewUIList.Count) _currentIndex %= mapViewUIList.Count;
            }
        }

        public DimensionDef CurrentDimension => mapViewUIList[CurrentDimensionIndex].DimensionDefine;

        private void Start()
        {
            var dimensionDefs = DefineManager.Instance.QueryDefinesByType<DimensionDef>();
            if (dimensionDefs == null)
                return;
            foreach (var d in dimensionDefs)
            {
                if (!d.canSelect)
                    continue;
                var newObj = Instantiate(mapViewUIPrefab, iconList);
                mapViewUIList.Add(newObj);
                newObj.Init(d);
                newObj.gameObject.SetActive(false);
                newObj.transform.localPosition = Vector3.zero;
            }

            UpdateUI();
        }

        public void UpdateUI()
        {
            if (mapViewUIList == null)
                return;
            for (var i = 0; i < mapViewUIList.Count; i++)
                mapViewUIList[i].gameObject.SetActive(i == CurrentDimensionIndex);
        }

        public void OnStartGame()
        {
            Program.Instance.StartPlayGame(CurrentDimension);
        }

        public void OnLeft()
        {
            CurrentDimensionIndex -= 1;
            UpdateUI();
        }

        public void OnRight()
        {
            CurrentDimensionIndex += 1;
            UpdateUI();
        }
    }
}