using System.Collections.Generic;
using System.Threading.Tasks;
using AutoMapper;
using Datory;
using GxPress.Common.AppOptions;
using GxPress.Common.Tools;
using GxPress.Repository.Interface.DepartmentUser;
using Microsoft.Extensions.Caching.Distributed;
using Microsoft.Extensions.Options;
using System.Transactions;
using GxPress.Request.Department;

namespace GxPress.Repository.Implement.DepartmentUser
{
    public class DepartmentUserRepository : IDepartmentUserRepository
    {
        private readonly Repository<Entity.DepartmentUser> _repository;
        private readonly IMapper _mapper;
        private readonly IDistributedCache _cache;
        private readonly string _connectionString;
        private readonly string _databaseTypeStr;

        public DepartmentUserRepository(IOptionsMonitor<DatabaseOptions> dbOptionsAccessor, IMapper mapper, IDistributedCache cache)
        {
            _databaseTypeStr = dbOptionsAccessor.CurrentValue.DatabaseType;
            _connectionString = dbOptionsAccessor.CurrentValue.ConnectionString;
            var databaseType = StringUtils.ToEnum<DatabaseType>(dbOptionsAccessor.CurrentValue.DatabaseType, DatabaseType.MySql);
            var database = new Database(databaseType, dbOptionsAccessor.CurrentValue.ConnectionString);
            _repository = new Repository<Entity.DepartmentUser>(database);
            _mapper = mapper;
            _cache = cache;
        }
        public IDatabase Database => _repository.Database;
        public string TableName => _repository.TableName;
        public List<TableColumn> TableColumns => _repository.TableColumns;
        /// <summary>
        /// 根据部门ID获取用户
        /// </summary>
        /// <param name="departmentId"></param>
        /// <returns></returns>
        public async Task<IEnumerable<int>> GetUserIdsAsync(int departmentId)
        {
            return await _repository.GetAllAsync<int>(Q.Where(nameof(Entity.DepartmentUser.DepartmentId), departmentId).Select(nameof(Entity.DepartmentUser.UserId)));
        }

        /// <summary>
        /// 根据用户ID获取部门下面的用户
        /// </summary>
        /// <param name="departmentId"></param>
        /// <returns></returns>
        public async Task<IEnumerable<int>> GetUserIdsByUserIdAsync(int userId)
        {
            var departmentIds = await _repository.GetAllAsync<int>(Q.Where(nameof(Entity.DepartmentUser.UserId), userId).Select(nameof(Entity.DepartmentUser.DepartmentId)));
            return await _repository.GetAllAsync<int>(Q.WhereIn(nameof(Entity.DepartmentUser.DepartmentId), departmentIds).Select(nameof(Entity.DepartmentUser.UserId)));
        }
        /// <summary>
        /// 根据部门ID集合获取用户
        /// </summary>
        /// <param name="departmentId"></param>
        /// <returns></returns>
        public async Task<IEnumerable<int>> GetUserIdsAsync(IEnumerable<int> departmentIds)
        {
            return await _repository.GetAllAsync<int>(Q.WhereIn(nameof(Entity.DepartmentUser.DepartmentId), departmentIds).Select(nameof(Entity.DepartmentUser.UserId)));
        }
        /// <summary>
        /// 获取部门下面的所有用户
        /// </summary>
        /// <param name="departmentId"></param>
        /// <returns></returns>
        public async Task<IEnumerable<int>> GetUserIdsAsync()
        {
            return await _repository.GetAllAsync<int>(Q.Select(nameof(Entity.DepartmentUser.UserId)).GroupBy(nameof(Entity.DepartmentUser.UserId)));
        }
        /// <summary>
        /// 根据部门ID获取部门下面的所有用户
        /// </summary>
        /// <param name="departmentIds"></param>
        /// <returns></returns>
        public async Task<IEnumerable<int>> GetUserIdsByDepartmentIdsAsync(IEnumerable<int> departmentIds)
        {
            return await _repository.GetAllAsync<int>(Q.Select(nameof(Entity.DepartmentUser.UserId)).WhereIn(nameof(Entity.DepartmentUser.DepartmentId), departmentIds).GroupBy(nameof(Entity.DepartmentUser.UserId)));
        }
        /// <summary>
        /// 判断是否有部门
        /// </summary>
        /// <param name="userId"></param>
        /// <returns></returns>
        public async Task<bool> IsExistsAsync(int userId)
        {
            return await _repository.ExistsAsync(Q.Where(nameof(Entity.DepartmentUser.UserId), userId));
        }
        /// <summary>
        /// 根据用户D获取部门ID
        /// </summary>
        /// <param name="departmentId"></param>
        /// <returns></returns>
        public async Task<IEnumerable<int>> GetDepartmentIdsAsync(int userId)
        {
            return await _repository.GetAllAsync<int>(Q.Where(nameof(Entity.DepartmentUser.UserId), userId).Select(nameof(Entity.DepartmentUser.DepartmentId)));
        }
        /// <summary>
        /// 添加部门成员
        /// </summary>
        /// <param name="request"></param>
        /// <returns></returns>
        public async Task<bool> AddDepartmentUserAsync(DepartmentUserInRequest request)
        {
            try
            {
                using (var transactionScope = new TransactionScope())
                {
                    //删除
                    await _repository.DeleteAsync(Q.Where(nameof(Entity.DepartmentUser.DepartmentId), request.DepartmentId));
                    foreach (var item in request.UserIds)
                    {
                        var entity = new Entity.DepartmentUser()
                        {
                            DepartmentId = request.DepartmentId,
                            UserId = item
                        };
                        await _repository.InsertAsync(entity);
                    }
                    transactionScope.Complete();
                }
            }
            catch
            {
                return false;
            }
            return true;
        }
        /// <summary>
        /// 添加部门成员
        /// </summary>
        /// <param name="request"></param>
        /// <returns></returns>
        public async Task<bool> AddDepartmentUserAsync(IEnumerable<int> departmentIds, int userId)
        {
            try
            {
                using (var transactionScope = new TransactionScope())
                {
                    //删除
                    await _repository.DeleteAsync(Q.Where(nameof(Entity.DepartmentUser.UserId), userId));
                    foreach (var item in departmentIds)
                    {
                        var entity = new Entity.DepartmentUser()
                        {
                            DepartmentId = item,
                            UserId = userId
                        };
                        await _repository.InsertAsync(entity);
                    }
                    transactionScope.Complete();
                }
            }
            catch
            {
                return false;
            }
            return true;
        }
        /// <summary>
        /// 根据用户id获取所在部门
        /// </summary>
        /// <param name="userIds"></param>
        /// <returns></returns>
        public async Task<IEnumerable<Entity.DepartmentUser>> GetDepartmentUsersByUserIdsAsync(IEnumerable<int> userIds)
        {
            return await _repository.GetAllAsync(Q.WhereIn(nameof(Entity.DepartmentUser.UserId), userIds));
        }
    }
}