using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Shentun.Peis.ItemTypes;
using Shentun.Peis.Models;
using Shentun.Peis.OrganizationUnits;
using Shentun.Peis.RoleMenuInfos;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Volo.Abp;
using Volo.Abp.Application.Services;
using Volo.Abp.Domain.Repositories;
using Volo.Abp.Identity;
using Volo.Abp.Users;

namespace Shentun.Peis.MenuInfos
{
    /// <summary>
    /// 后台菜单
    /// </summary>
    [ApiExplorerSettings(GroupName = "Work")]
    [Authorize]
    public class MenuInfoAppService : ApplicationService
    {
        private readonly IRepository<MenuInfo, Guid> _menuInfoRepository;
        private readonly IRepository<RoleMenuInfo> _roleMenuInfoRepository;
        private readonly ICurrentUser _currentUser;
        private readonly IIdentityUserRepository _userRepository;
        private readonly IRepository<IdentityUser, Guid> _identityUserRepository;
        private readonly IConfiguration _configuration;
        private readonly MenuInfoManager _menuInfoManager;
        public MenuInfoAppService(
            IRepository<MenuInfo, Guid> menuInfoRepository,
            IRepository<RoleMenuInfo> roleMenuInfoRepository,
            ICurrentUser currentUser,
            MenuInfoManager menuInfoManager,
            IIdentityUserRepository userRepository,
            IRepository<IdentityUser, Guid> identityUserRepository,
            IConfiguration configuration)
        {
            this._menuInfoRepository = menuInfoRepository;
            this._menuInfoManager = menuInfoManager;
            this._roleMenuInfoRepository = roleMenuInfoRepository;
            this._currentUser = currentUser;
            this._userRepository = userRepository;
            this._identityUserRepository = identityUserRepository;
            this._configuration = configuration;
        }



        /// <summary>
        /// 查询菜单数据 根据ID
        /// </summary>
        /// <param name="MenuInfoId"></param>
        /// <returns></returns>
        [HttpGet("api/app/menuinfo/getmenuinfoasync")]
        public async Task<MenuInfoDto> GetMenuInfoAsync(Guid MenuInfoId)
        {
            var entity = await _menuInfoRepository.GetAsync(MenuInfoId);
            var dto = ObjectMapper.Map<MenuInfo, MenuInfoDto>(entity);
            var userList = await _userRepository.GetListAsync();
            dto.CreatorName = EntityHelper.GetSurnameNoSql(userList, dto.CreatorId);
            dto.LastModifierName = EntityHelper.GetSurnameNoSql(userList, dto.LastModifierId);
            return dto;
        }

        /// <summary>
        /// 创建后台菜单
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        [HttpPost("api/app/menuinfo/createtmenuinfo")]
        public async Task<MenuInfoDto> CreatetMenuInfoAsync(CreateMenuInfoDto input)
        {
            var createEntity = ObjectMapper.Map<CreateMenuInfoDto, MenuInfo>(input);
            var entity = await _menuInfoManager.CreatetMenuInfoAsync(createEntity);
            entity = await _menuInfoRepository.InsertAsync(entity);
            var dto = ObjectMapper.Map<MenuInfo, MenuInfoDto>(entity);
            return dto;
        }

        /// <summary>
        /// 修改后台菜单
        /// </summary>
        /// <param name="id"></param>
        /// <param name="input"></param>
        /// <returns></returns>
        [HttpPost("api/app/menuinfo/updatemenuinfo")]
        public async Task<MenuInfoDto> UpdateMenuInfoAsync(Guid id, UpdateMenuInfoDto input)
        {
            var entity = await _menuInfoRepository.GetAsync(id);
            var sourceEntity = ObjectMapper.Map<UpdateMenuInfoDto, MenuInfo>(input);
            _menuInfoManager.UpdateMenuInfoAsync(sourceEntity, entity);
            entity = await _menuInfoRepository.UpdateAsync(entity);
            var dto = ObjectMapper.Map<MenuInfo, MenuInfoDto>(entity);
            return dto;
        }


        /// <summary>
        /// 删除
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        [HttpPost("api/app/menuinfo/deletemenuinfo")]
        public async Task DeleteMenuInfoAsync(Guid id)
        {

            //判断是否有下级节点
            if ((await _menuInfoRepository.GetQueryableAsync()).Where(m => m.ParentId == id).Count() > 0)
                throw new UserFriendlyException("当前菜单有下级节点，不能删除");

            //删除角色选择的对应的菜单数据
            await _roleMenuInfoRepository.DeleteAsync(d => d.MenuInfoId == id);

            //删除菜单
            await _menuInfoRepository.DeleteAsync(id);
        }


        /// <summary>
        /// 获取当前用户的树型菜单结果
        /// </summary>
        /// <returns></returns>
        [HttpGet("api/app/menuinfo/getmymenuinfotreelist")]
        public async Task<List<MenuInfoTreeDto>> GetMyMenuInfoTreeListAsync()
        {

            var dataList = await _menuInfoRepository.GetQueryableAsync();
            string AdminId = _configuration.GetValue<string>("AdminId");
            if (_currentUser.Id.Value != Guid.Parse(AdminId))
            {
                var userRoles = await _userRepository.GetRolesAsync(_currentUser.Id.Value); //获取当前用户的角色
                if (!userRoles.Any())
                    return new List<MenuInfoTreeDto>();
                var userMenuInfoList = await _roleMenuInfoRepository.GetListAsync(m => userRoles.Select(s => s.Id).Contains(m.RoleId)); //当前持有的菜单项
                if (!userMenuInfoList.Any())
                    return new List<MenuInfoTreeDto>();
                dataList = dataList.Where(m => userMenuInfoList.Select(s => s.MenuInfoId).Distinct().Contains(m.Id));
            }
            var items = from p in dataList.OrderBy(o => o.DisplayOrder).ThenBy(o => o.DisplayName)
                        select new MenuInfoTreeDto()
                        {
                            Id = p.Id,
                            ParentId = p.ParentId,
                            DisplayOrder = p.DisplayOrder,
                            IconName = p.IconName,
                            IsActive = p.IsActive,
                            RouteUrl = p.RouteUrl,
                            DisplayName = p.DisplayName,
                            SimpleCode = p.SimpleCode,
                            MenuType = p.MenuType
                        };
            return GetMenuInfoTree(items.ToList(), null);
        }



        /// <summary>
        /// 获取树型菜单结果
        /// </summary>
        /// <returns></returns>
        [HttpGet("api/app/menuinfo/getmenuinfotreelist")]
        public async Task<List<MenuInfoTreeDto>> GetMenuInfoTreeListAsync()
        {
            var dataList = await _menuInfoRepository.GetQueryableAsync();
            var items = from p in dataList.OrderBy(o => o.DisplayOrder).ThenBy(o => o.DisplayName)
                        select new MenuInfoTreeDto()
                        {
                            Id = p.Id,
                            ParentId = p.ParentId,
                            DisplayOrder = p.DisplayOrder,
                            IconName = p.IconName,
                            IsActive = p.IsActive,
                            RouteUrl = p.RouteUrl,
                            DisplayName = p.DisplayName,
                            SimpleCode = p.SimpleCode,
                            MenuType = p.MenuType
                        };
            return GetMenuInfoTree(items.ToList(), null);
        }


        /// <summary>
        /// 获取当前用户的菜单列表
        /// </summary>
        /// <returns></returns>
        [HttpGet("api/app/menuinfo/getmymenuinfolist")]
        public async Task<List<GetMyMenuInfoListDto>> GetMyMenuInfoListAsync()
        {
            var query = await _menuInfoRepository.GetQueryableAsync();

            query = query.Where(m => m.IsActive == 'Y');

            string AdminId = _configuration.GetValue<string>("AdminId");

            if (_currentUser.Id.Value != Guid.Parse(AdminId))
            {
                var userRoles = await _userRepository.GetRolesAsync(_currentUser.Id.Value); //获取当前用户的角色
                if (!userRoles.Any())
                    return new List<GetMyMenuInfoListDto>();
                var userMenuInfoList = await _roleMenuInfoRepository.GetListAsync(m => userRoles.Select(s => s.Id).Contains(m.RoleId)); //当前持有的菜单项
                if (!userMenuInfoList.Any())
                    return new List<GetMyMenuInfoListDto>();
                query = query.Where(m => userMenuInfoList.Select(s => s.MenuInfoId).Distinct().Contains(m.Id));
            }


            var entlistdto = query.Select(s => new GetMyMenuInfoListDto
            {
                DisplayName = s.DisplayName,
                DisplayOrder = s.DisplayOrder,
                IconName = s.IconName,
                Id = s.Id,
                MenuType = s.MenuType,
                ParentId = s.ParentId,
                RouteUrl = s.RouteUrl,
            }).OrderBy(o => o.ParentId).ThenBy(o => o.DisplayOrder).ToList();

            return entlistdto;
        }


        /// <summary>
        /// 获取指定用户的菜单列表
        /// </summary>
        /// <returns></returns>
        [HttpGet("api/app/menuinfo/getmymenuinfolistinuser")]
        public async Task<List<MenuInfoDto>> GetMyMenuInfoListInUserAsync(Guid UserId)
        {
            var query = from a in await _menuInfoRepository.GetQueryableAsync()
                        join b in await _identityUserRepository.GetQueryableAsync() on a.CreatorId equals b.Id into bb
                        from ab in bb.DefaultIfEmpty()
                        join c in await _identityUserRepository.GetQueryableAsync() on a.LastModifierId equals c.Id into cc
                        from ac in cc.DefaultIfEmpty()
                        select new
                        {
                            a,
                            LastModifierName = ac != null ? ac.Surname : "",
                            CreatorName = ab != null ? ab.Surname : ""
                        };

            var userRoles = await _userRepository.GetRolesAsync(UserId); //获取当前用户的角色
            if (!userRoles.Any())
                return new List<MenuInfoDto>();
            var userMenuInfoList = await _roleMenuInfoRepository.GetListAsync(m => userRoles.Select(s => s.Id).Contains(m.RoleId)); //当前持有的菜单项
            if (!userMenuInfoList.Any())
                return new List<MenuInfoDto>();
            query = query.Where(m => userMenuInfoList.Select(s => s.MenuInfoId).Distinct().Contains(m.a.Id));



            var entlistdto = query.Select(s => new MenuInfoDto
            {
                CreationTime = s.a.CreationTime,
                CreatorId = s.a.CreatorId,
                DisplayName = s.a.DisplayName,
                DisplayOrder = s.a.DisplayOrder,
                IconName = s.a.IconName,
                Id = s.a.Id,
                IsActive = s.a.IsActive,
                LastModifierId = s.a.LastModifierId,
                LastModificationTime = s.a.LastModificationTime,
                MenuType = s.a.MenuType,
                ParentId = s.a.ParentId,
                RouteUrl = s.a.RouteUrl,
                SimpleCode = s.a.SimpleCode,
                CreatorName = s.CreatorName,
                LastModifierName = s.LastModifierName
            }).OrderBy(o => o.DisplayOrder).ThenBy(o => o.DisplayName).ToList();

            return entlistdto;
        }



        /// <summary>
        /// 获取菜单列表
        /// </summary>
        /// <returns></returns>
        [HttpGet("api/app/menuinfo/getmenuinfolist")]
        public async Task<List<MenuInfoDto>> GetMenuInfoListAsync()
        {

            var query = from a in await _menuInfoRepository.GetQueryableAsync()
                        join b in await _identityUserRepository.GetQueryableAsync() on a.CreatorId equals b.Id into bb
                        from ab in bb.DefaultIfEmpty()
                        join c in await _identityUserRepository.GetQueryableAsync() on a.LastModifierId equals c.Id into cc
                        from ac in cc.DefaultIfEmpty()
                        select new
                        {
                            a,
                            LastModifierName = ac != null ? ac.Surname : "",
                            CreatorName = ab != null ? ab.Surname : ""
                        };


            var entlistdto = query.Select(s => new MenuInfoDto
            {
                CreationTime = s.a.CreationTime,
                CreatorId = s.a.CreatorId,
                DisplayName = s.a.DisplayName,
                DisplayOrder = s.a.DisplayOrder,
                IconName = s.a.IconName,
                Id = s.a.Id,
                IsActive = s.a.IsActive,
                LastModifierId = s.a.LastModifierId,
                LastModificationTime = s.a.LastModificationTime,
                MenuType = s.a.MenuType,
                ParentId = s.a.ParentId,
                RouteUrl = s.a.RouteUrl,
                SimpleCode = s.a.SimpleCode,
                CreatorName = s.CreatorName,
                LastModifierName = s.LastModifierName
            }).OrderBy(o => o.DisplayOrder).ThenBy(o => o.DisplayName).ToList();

            return entlistdto;


        }

        /// <summary>
        ///  
        /// </summary>
        /// <param name="items"></param>
        /// <param name="ParentId"></param>
        /// <returns></returns>
        private List<MenuInfoTreeDto> GetMenuInfoTree(List<MenuInfoTreeDto> items, Guid? ParentId)
        {
            return (from p in items
                    where p.ParentId == ParentId
                    let subs = GetMenuInfoTree(items, p.Id)
                    select new MenuInfoTreeDto()
                    {
                        Id = p.Id,
                        ParentId = p.ParentId,
                        DisplayOrder = p.DisplayOrder,
                        IconName = p.IconName,
                        IsActive = p.IsActive,
                        RouteUrl = p.RouteUrl,
                        DisplayName = p.DisplayName,
                        SimpleCode = p.SimpleCode,
                        MenuType = p.MenuType,
                        TreeChildren = subs.ToList()
                    }
                    ).ToList();
        }



    }
}