using System;
using ET.EventType;
using FairyGUI;
using UnityEngine;

namespace ET
{
    using FUIBuilding;
    public class CreateBuildingViewComponentAwakeSystem : AwakeSystem<CreateBuildingViewComponent>
    {
        public override void Awake(CreateBuildingViewComponent self)
        {
            self.Awake();
        }
    }

    public class CreateBuildingViewComponentUpdateSystem : UpdateSystem<CreateBuildingViewComponent>
    {
        public override void Update(CreateBuildingViewComponent self)
        {
            self.Update();
        }
    }
    
    public class CreateBuildingViewComponentDestorySystem : DestroySystem<CreateBuildingViewComponent>
    {
        public override void Destroy(CreateBuildingViewComponent self)
        {
            self.Destroy();
        }
    }

    [FriendClass(typeof(CreateBuildingViewComponent))]
    [FriendClass(typeof(FUIBuildingEditComponent))]
    [FriendClass(typeof(MapUnitOperationComponent))]
    public static class CreateBuildingViewComponentSystem
    {
        public static void Edit(this CreateBuildingViewComponent self, Transform buildingRoot, int buildingSynthesisId)
        {
            self.CurEditBuildingRoot = buildingRoot;
            self.CurEditBuildingSynthesisId = buildingSynthesisId;
            var buildingSR = self.CurEditBuildingRoot.GetComponentInChildren<SpriteRenderer>();

            // 显示编辑按钮
            self.EditUI = self.ZoneScene().GetComponent<FUIComponent>()
                    .ShowWindow<FUI_BuildingEdit, FUIBuildingEditComponent>();
            self.EditUI.OnCreateBuildingConfirm = self.OnCreateBuildingConfirm;
            self.EditUI.OnCreateBuildingCancle = self.OnCreateBuildingCancel;

            var mapUnitOper = self.Parent.AddComponent<MapUnitOperationComponent>();
            mapUnitOper.Edit(buildingRoot, buildingSR);
            // 默认设置到屏幕中间
            mapUnitOper.UpdateUnitPos(new Vector2(Screen.width / 2 , Screen.height / 2));
            mapUnitOper.UnitPosUpdate += self.UpdateEditUIPos;
            // 设置编辑按钮位置
            self.UpdateEditUIPos();
        }
        
        public static void UpdateEditUIPos(this CreateBuildingViewComponent self)
        {
            var mapUnitOper = self.Parent.GetComponent<MapUnitOperationComponent>();
            self.EditUI.SetConfirmButtonPos(mapUnitOper.GetMidLeftPos());
            self.EditUI.SetCancelButtonPos(mapUnitOper.GetMidRightPos());
        }

        public static void Awake(this CreateBuildingViewComponent self)
        {

        }
        public static void Destroy(this CreateBuildingViewComponent self)
        {
            self.Parent.RemoveComponent<MapUnitOperationComponent>();
        }
        
        public static void Update(this CreateBuildingViewComponent self)
        {
        }

        public static void OnCreateBuildingConfirm(this CreateBuildingViewComponent self)
        {
            self.CreateBuilding().Coroutine();
        }

        public static async ETTask CreateBuilding(this CreateBuildingViewComponent self)
        {
            var mapUnitOper = self.Parent.GetComponent<MapUnitOperationComponent>();
            Unit unit = UnitHelper.GetMyUnitFromZoneScene(self.ZoneScene());
            if (mapUnitOper.IsPlaceValid())
            {
                var pos = self.CurEditBuildingRoot.position;
                int errorCode = await ConstructHelper.CreateConstruct(unit, self.CurEditBuildingSynthesisId, pos.x, pos.y);
                if (errorCode != ErrorCode.ERR_Success)
                {
                    Debug.LogWarning("Create Building Failed");
                }  
            }
            else
            {
                CommonHelper.ShowHint(self.ZoneScene(), TextHelper.Building_Place_Invalid);
            }


            // 删除临时的建筑
            GameObject.Destroy(self.CurEditBuildingRoot.gameObject);
            
            Game.EventSystem.Publish(new QuitCreateBuildingEdit() { Unit = unit});
        }
        
        public static void OnCreateBuildingCancel(this CreateBuildingViewComponent self)
        {
            GameObject.Destroy(self.CurEditBuildingRoot.gameObject);
            
            
            Unit unit = UnitHelper.GetMyUnitFromZoneScene(self.ZoneScene());
            Game.EventSystem.Publish(new QuitCreateBuildingEdit(){ Unit = unit});
        }
    }
}