using System.Collections.Generic;
using System.Linq;
using Unity.UIWidgets.foundation;
using UnityEngine;

namespace UIWidgetsSample.RaycastableScene
{
    public class ItemInfo
    {
        public string itemObjName;
        public string itemDesc;
        public GameObject obj;
        public Vector3 position;
        public bool active;
        public Vector3 cameraPosition;

        public ItemInfo(string name, string desc, Vector3 cameraPosition)
        {
            itemObjName = name;
            itemDesc = desc;
            this.cameraPosition = cameraPosition;
        }
    }

    public class GameObjectManager : MonoBehaviour
    {
        public static ItemInfo[] itemInfos = new[]
        {
            new ItemInfo("Crane", "1", new Vector3(-5.69f, 2.38f, -1.36f)),
            new ItemInfo("Dog", "2", new Vector3(-2.44f, 1.31f, -2.96f)),
            new ItemInfo("Dragon", "3", new Vector3(-0.38f, 4.21f, -2.74f)),
            new ItemInfo("Goat", "4", new Vector3(-0.1f, 1.55f, -4.42f)),
            new ItemInfo("Horse", "5", new Vector3(-4.21f, 1.55f, -4.96f)),
            new ItemInfo("Monkey", "6", new Vector3(2.88f, 3.66f, -7.28f)),
            new ItemInfo("Ox", "7", new Vector3(1.08f, 1.23f, -1.86f)),
            new ItemInfo("Pig", "8", new Vector3(-4.2f, 0.95f, -2.49f)),
            new ItemInfo("Rabbit", "9", new Vector3(0.53f, 6.7f, -10.19f)),
            new ItemInfo("Rat", "10", new Vector3(-8.8f, 1.19f, -1.99f)),
            new ItemInfo("Rooster", "11", new Vector3(-13.71f, 6.8f, -9.48f)),
            new ItemInfo("Snake", "12", new Vector3(-6.88f, 4.9f, -9.6f)),
            new ItemInfo("Tiger", "13", new Vector3(-6.85f, 1.51f, -6.41f))
        };

        public Transform center;
        public static Transform centerInstance;

        public static List<PickListItem> listItems => itemInfos.Select(x => new PickListItem(x.itemObjName, true, x.itemObjName)).ToList();
        
        public static Dictionary<string, ItemInfo> objects = new Dictionary<string, ItemInfo>();

        public static Vector3? cameraPosition;

        public static Camera cameraInstance;

        public Camera camera;

        private void OnEnable()
        {
            objects.Clear();
            
            centerInstance = center;
            cameraInstance = camera;

            foreach (var item in itemInfos)
            {
                var newInfo = new ItemInfo(item.itemObjName, item.itemDesc, item.cameraPosition);
                newInfo.active = true;
                newInfo.obj = GameObject.Find(item.itemObjName);
                newInfo.position = newInfo.obj.transform.position;
                
                objects.Add(item.itemObjName, newInfo);
            }
        }

        
        void Update()
        { 
            if (cameraPosition != null )
            {
                var dif = cameraPosition.Value - camera.transform.position;
                if (dif.sqrMagnitude > RaycastableSceneConfig.delta)
                {
                    camera.transform.position = dif.normalized * (RaycastableSceneConfig.cameraSpeed * Time.deltaTime) 
                                                + camera.transform.position;
                    
                }
            }
        }

        public static void FocusOnObject(string name)
        {
            var obj = objects.getOrDefault(name);
            if (obj != null && obj.active)
            {
                cameraPosition = obj.cameraPosition;
            }
        }
        
        public static void MoveCenter(string name)
        {
            var obj = objects.getOrDefault(name);
            if (obj != null)
            {
                obj.obj.transform.position = obj.position;
                obj.active = true;
            }
        }
        
        public static void MoveFar(string name)
        {
            var obj = objects.getOrDefault(name);
            if (obj != null)
            {
                obj.obj.transform.position = RaycastableSceneConfig.far;
                obj.active = false;
            }
        }
    }
}