using AutoMapper;
using Common.Enum;
using Entity.DbModel.System.SysBaseObject;
using Entity.Dto.Req;
using Entity.Dto.Resp;
using HybirdFrameworkCore.Autofac.Attribute;
using Mapster;
using Microsoft.AspNetCore.Mvc;
using Repository.System;
using Service.Mgr;

namespace Service.System
{
    [Scope("SingleInstance")]
    public class SysMenuService : BaseServices<SysMenu>
    {
        //private readonly UserManager _userManager;
        private readonly SysMenuRepository _sysMenuRep;
        private readonly SysRoleMenuMgr _sysRoleMenuMgr;
        private readonly SysUserRoleMgr _sysUserRoleMgr;

        public SysMenuService(
            SysMenuRepository sysMenuRep,
            SysRoleMenuMgr sysRoleMenuService,
            SysUserRoleMgr sysUserRoleService)
        {
            _sysMenuRep = sysMenuRep;
            _sysRoleMenuMgr = sysRoleMenuService;
            _sysUserRoleMgr = sysUserRoleService;
        }

        /// <summary>
        /// 获取登录菜单树 🔖
        /// </summary>
        /// <returns></returns>
        public async Task<List<MenuResp>> GetLoginMenuTree()
        {
            if (UserManager.SuperAdmin)
            {
                var config = new MapperConfiguration(u => u.CreateMap<MenuResp, SysMenu>().ReverseMap());
                IMapper mapper = config.CreateMapper();

                var menuList = await _sysMenuRep.QueryTreeByClauseAsync((u => u.Type != MenuTypeEnum.Btn && u.Status == StatusEnum.Enable),
                    u => new { u.OrderNo, u.Id },
                    u => u.Children, u => u.Pid, 0);
                return menuList.Adapt<List<MenuResp>>();
                //return mapper.Map<List<MenuResp>>(menuList);
            }
            else
            {
                var menuIdList = await GetMenuIdList();
                var menuTree = await _sysMenuRep.QueryTreeByClauseAsync(u => u.Status == StatusEnum.Enable, u => new { u.OrderNo, u.Id },
                    u => u.Children, u => u.Pid, 0, menuIdList.Select(d => (object)d).ToArray());
                DeleteBtnFromMenuTree(menuTree);
                return menuTree.Adapt<List<MenuResp>>();
            }
        }

        /// <summary>
        /// 删除登录菜单树里面的按钮
        /// </summary>
        private void DeleteBtnFromMenuTree(List<SysMenu> menuList)
        {
            if (menuList == null) return;
            for (var i = menuList.Count - 1; i >= 0; i--)
            {
                var menu = menuList[i];
                if (menu.Type == MenuTypeEnum.Btn)
                    menuList.Remove(menu);
                else if (menu.Children.Count > 0)
                    DeleteBtnFromMenuTree(menu.Children);
            }
        }

        /// <summary>
        /// 获取菜单列表 🔖
        /// </summary>
        /// <returns></returns>
        public async Task<List<SysMenu>> GetList([FromQuery] MenuReq input)
        {
            var menuIdList = UserManager.SuperAdmin ? new List<long>() : await GetMenuIdList();

            // 有筛选条件时返回list列表（防止构造不出树）
            if (!string.IsNullOrWhiteSpace(input.Title) || input.Type is > 0)
            {
                return await _sysMenuRep.QueryListByClauseAsync(
                    !string.IsNullOrWhiteSpace(input.Title), u => u.Title.Contains(input.Title),
                    input.Type is > 0, u => u.Type == input.Type,
                    menuIdList.Count > 1, u => menuIdList.Contains(u.Id), (u => u.OrderNo)
                    );
            }

            return UserManager.SuperAdmin ?
                await _sysMenuRep.QueryTreeByClauseAsync(u => u.OrderNo, u => u.Children, u => u.Pid, 0) :
                await _sysMenuRep.QueryTreeByClauseAsync(u => u.OrderNo, u => u.Children, u => u.Pid, 0, menuIdList.Select(d => (object)d).ToArray()); // 角色菜单授权时
        }

        /// <summary>
        /// 增加菜单 🔖
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        public async Task<string> AddMenu(AddMenuReq input)
        {
            string result = "";
            var isExist = input.Type != MenuTypeEnum.Btn
                ? await _sysMenuRep.QueryByClauseAsync(u => u.Title == input.Title && u.Pid == input.Pid)
                : await _sysMenuRep.QueryByClauseAsync(u => u.Permission == input.Permission && u.Pid == input.Pid);
            if (isExist != null)
            {
                result = "菜单已存在";
                return result;
            }
            if (!string.IsNullOrWhiteSpace(input.Name))
            {
                if (await _sysMenuRep.QueryByClauseAsync(u => u.Name == input.Name) != null)
                    return result = "路由名称重复";
            }
            if (input.Pid != 0)
            {
                if (await _sysMenuRep.QueryByClauseAsync(u => u.Id == input.Pid && u.Type == MenuTypeEnum.Btn) != null)
                    return result = "父节点不能为按钮类型";
            }
            // 校验菜单参数
            var sysMenu = input.Adapt<SysMenu>();
            string checkResult = CheckMenuParam(sysMenu);
            if (checkResult == "")
            {
                await _sysMenuRep.InsertAsync(sysMenu);
                return result = "增加菜单成功";
            }
            else
            {
                return result = "增加菜单失败";
            }
        }

        /// <summary>
        /// 更新菜单 🔖
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        public async Task<int> UpdateMenu(UpdateMenuReq input)
        {
            int updateResult = 0;
            if (input.Id == input.Pid)
                throw new ArgumentException($"禁止本节点与父节点相同");
            var isExist = input.Type != MenuTypeEnum.Btn
                ? await _sysMenuRep.QueryByClauseAsync(u => u.Title == input.Title && u.Type == input.Type && u.Pid == input.Pid && u.Id != input.Id)
                : await _sysMenuRep.QueryByClauseAsync(u => u.Permission == input.Permission && u.Type == input.Type && u.Pid == input.Pid && u.Id != input.Id);
            if (isExist != null)
                throw new ArgumentException($"菜单已存在");
            if (!string.IsNullOrWhiteSpace(input.Name))
            {
                if ((await _sysMenuRep.QueryByClauseAsync(u => u.Id != input.Id && u.Name == input.Name)) != null)
                    throw new ArgumentException($"路由名称重复");
            }

            if (input.Pid != 0)
            {
                if ((await _sysMenuRep.QueryByClauseAsync(u => u.Id == input.Pid && u.Type == MenuTypeEnum.Btn)) != null)
                    throw new ArgumentException($"父节点不能为按钮类型");
            }

            // 校验菜单参数
            var sysMenu = input.Adapt<SysMenu>();
            CheckMenuParam(sysMenu);

            bool result = await _sysMenuRep.UpdateAsync(sysMenu);
            if (result)
            {
                updateResult = 200;
                return updateResult;
            }
            return updateResult;
        }

        /// <summary>
        /// 删除菜单 🔖
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        public async Task DeleteMenu(DeleteMenuReq input)
        {
            var menuTreeList = await _sysMenuRep.QueryTreeByClauseAsync(u => u.Pid, input.Id, true);
            var menuIdList = menuTreeList.Select(u => u.Id).ToList();

            await _sysMenuRep.DeleteAsync(u => menuIdList.Contains(u.Id));

            // 级联删除角色菜单数据
            await _sysRoleMenuMgr.DeleteRoleMenuByMenuIdList(menuIdList);
        }

        /// <summary>
        /// 增加和编辑时检查菜单数据
        /// </summary>
        /// <param name="menu"></param>
        private static string CheckMenuParam(SysMenu menu)
        {
            string result = "";
            var permission = menu.Permission;
            if (menu.Type == MenuTypeEnum.Btn)
            {
                menu.Name = null;
                menu.Path = null;
                menu.Component = null;
                menu.Icon = null;
                menu.Redirect = null;
                menu.OutLink = null;
                menu.IsHide = false;
                menu.IsKeepAlive = true;
                menu.IsAffix = false;
                menu.IsIframe = false;

                if (string.IsNullOrEmpty(permission))
                    return result = "权限标识格式为空";
                if (!permission.Contains(':'))
                    return result = "权限标识格式错误 如xxx:xxx";
            }
            else
            {
                menu.Permission = null;
            }
            return result;
        }


        /// <summary>
        /// 获取当前用户菜单Id集合
        /// </summary>
        /// <returns></returns>
        private async Task<List<long>> GetMenuIdList()
        {
            var roleIdList = await _sysUserRoleMgr.GetUserRoleIdList(UserManager.UserId);
            return await _sysRoleMenuMgr.GetRoleMenuIdList(roleIdList);
        }

    }
}