using System.Collections.Generic;
using System.Linq;
using Data;
using UnityEngine;
using UnityEngine.UI;

namespace UI
{
    public class DevMenuUI : UIBase
    {
        public GameObject menuContent;

        public EntityPlacementUI entityPlacementUI;

        public Prefab.TextPrefab textTemplate;
        public Prefab.ButtonPrefab buttonTemplate;

        private void Start()
        {
            Init();
        }

        private void Init()
        {
            InitEvent();
            InitCharacter();
            InitMonster();
            InitBuilding();
        }


        private void InitEvent()
        {
            var title = InstantiatePrefab(textTemplate, menuContent.transform);
            title.Label = "事件菜单";
            
            title = InstantiatePrefab(textTemplate, menuContent.transform);
            title.Label = "未定义任何事件";
            title.text.color = Color.red;
            // for (int i = 0; i < 30; i++)
            // {
            //     var button= InstantiatePrefab(buttonTemplate, menuContent.transform);
            //     button.text.text = i.ToString();
            // }

        }

        private void InitCharacter()
        {
            var title = InstantiatePrefab(textTemplate, menuContent.transform);
            title.Label = "生成人物";

            var defList = Managers.DefineManager.Instance.QueryNamedDefinesByType<Data.CharacterDef>();
            if (defList == null || defList.Length == 0)
            {
                title = InstantiatePrefab(textTemplate, menuContent.transform);
                title.Label = "未定义任何角色";
                title.text.color = Color.red;
            }
            else
                foreach (var def in defList)
                {
                    var button = InstantiatePrefab(buttonTemplate, menuContent.transform);
                    button.Label = def.label;
                    var pawnDef = def;
                    button.AddListener(() => GenerateEntityCallback(pawnDef));
                }

        }

        private void InitMonster()
        {
            var title = InstantiatePrefab(textTemplate, menuContent.transform);
            title.Label = "生成怪物";

            var defList = Managers.DefineManager.Instance.QueryNamedDefinesByType<Data.MonsterDef>();
            if (defList == null || defList.Length == 0)
            {
                title = InstantiatePrefab(textTemplate, menuContent.transform);
                title.Label = "未定义任何怪物";
                title.text.color = Color.red;
            }
            else
            foreach (var def in defList)
            {
                var button = InstantiatePrefab(buttonTemplate, menuContent.transform);
                button.Label = def.label;
                var pawnDef = def;
                button.AddListener(() => GenerateEntityCallback(pawnDef));
            }
        }

        private void InitBuilding()
        {
            var title = InstantiatePrefab(textTemplate, menuContent.transform);
            title.Label = "生成建筑";

            var defList = Managers.DefineManager.Instance.QueryNamedDefinesByType<Data.BuildingDef>();
            if (defList == null || defList.Length == 0)
            {
                title = InstantiatePrefab(textTemplate, menuContent.transform);
                title.Label = "未定义任何建筑";
                title.text.color = Color.red;
            }
            else
                foreach (var def in defList)
                {
                    var button = InstantiatePrefab(buttonTemplate, menuContent.transform);
                    button.Label = def.label;
                    var pawnDef = def;
                    button.AddListener(() => GenerateBuildingCallback(pawnDef));
                }
        }

        /// <summary>
        /// 通用的实例化函数，返回实例化的预制件脚本组件。
        /// </summary>
        /// <typeparam name="T">预制件脚本的类型</typeparam>
        /// <param name="prefab">要实例化的预制件</param>
        /// <param name="parent">实例化对象的父对象</param>
        /// <returns>实例化的预制件脚本组件</returns>
        private T InstantiatePrefab<T>(T prefab, Transform parent) where T : Component
        {
            if (prefab == null || parent == null)
            {
                Debug.LogError("Prefab or parent is null!");
                return null;
            }

            // 实例化预制件
            var instance = Instantiate(prefab.gameObject, parent);

            // 获取实例化对象的脚本组件
            var instantiatedComponent = instance.GetComponent<T>();

            if (instantiatedComponent == null)
            {
                Debug.LogError($"Failed to get component of type {typeof(T).Name} from the instantiated prefab!");
            }

            return instantiatedComponent;
        }

        private void GenerateEntityCallback(EntityDef entityDef)
        {
            entityPlacementUI.currentAction = () =>
            {
                Managers.EntityManage.Instance.GenerateEntity(entityDef, Utils.MousePosition.GetWorldPosition());
            };
            entityPlacementUI.Prompt = $"当前生成器：\n名称：{entityDef.label}\n描述：{entityDef.description}";
            entityPlacementUI.snapEnabled = false;
            Base.UIInputControl.Instance.Show(entityPlacementUI);
        }

        private void GenerateBuildingCallback(BuildingDef def)
        {
            entityPlacementUI.currentAction = () =>
            {
                Managers.EntityManage.Instance.GenerateBuildingEntity(def, Utils.MousePosition.GetSnappedWorldPosition());
            };
            entityPlacementUI.Prompt = $"当前生成器：\n名称：{def.label}\n描述：{def.description}";
            entityPlacementUI.snapEnabled = true;
            Base.UIInputControl.Instance.Show(entityPlacementUI);
        }
    }

}