using Admin.Core.Model;
using Admin.Core.Common.Resource;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using System;
using System.Collections.Generic;
using System.Linq.Expressions;
using System.Threading.Tasks;
using Admin.Core.Common;
using System.Linq;
using AutoMapper;
using Admin.Core.IService.ISys;
using Admin.Core.Model.Sys;

namespace Admin.Core.Api
{
    /// <summary>
    /// SysDeptController
    /// </summary>
	[Route("api/[controller]/[action]")]
    [ApiController]
    [Authorize(Permissions.Name)]
    public class SysDeptController : BaseApiUserController
    {

        /// <summary>
        /// _sysDeptService
        /// </summary>
        private readonly ISysDeptService _sysDeptService;
        private readonly ISysRoleDeptService _sysRoleDeptService;
        private readonly IMapper _mapper;
        /// <summary>
        /// 构造方法
        /// </summary>
        /// <param name="SysDeptService"></param>
        /// <param name="sysRoleDeptService"></param>
        /// <param name="sysUserService"></param>
        /// <param name="mapper"></param>
        public SysDeptController(ISysDeptService SysDeptService, ISysRoleDeptService sysRoleDeptService, ISysUserService sysUserService,
            IMapper mapper) : base(sysUserService)
        {
            _sysUserService = sysUserService;
            _sysDeptService = SysDeptService;
            _sysRoleDeptService = sysRoleDeptService;
            _mapper = mapper;
        }

        /// <summary>
        /// 分页查询
        /// </summary>
        /// <param name="pageQuery"></param>
        /// <returns></returns>
        [HttpPost]
        public async Task<MessageModel<PageModel<DeptView>>> GetByPage([FromBody] PageQuery<SysDept> pageQuery)
        {
            if (!pageQuery.Query.IsNotEmptyOrNull())
            {
                pageQuery.Query = new SysDept();
            }
            var model = await _sysDeptService.SelectDeptList(pageQuery);
            return SuccessPage(model);
        }

        /// <summary>
        /// 查询所有部门信息
        /// </summary>
        /// <returns></returns>
        [HttpGet]
        public async Task<MessageModel<List<SysDept>>> GetAll()
        {
            return Success(await _sysDeptService.QueryAsync());
        }

        /// <summary>
        /// 根据ID查询
        /// </summary>
        /// <param name="id">主键</param>
        /// <returns></returns>
        [HttpGet]
        public async Task<MessageModel<SysDept>> GetByID(int id)
        {
            return new MessageModel<SysDept>()
            {
                msg = Resource_SysBase.OprateSuccess,
                success = true,
                data = await _sysDeptService.QueryByIdAsync(id)
            };
        }

        /// <summary>
        /// 新增一条数据
        /// </summary>
        /// <param name="request">SysDept</param>
        /// <returns></returns>
        [HttpPost]
        public async Task<MessageModel<int>> Add([FromBody] SysDept request)
        {
            var data = new MessageModel<int>();

            if (!await _sysDeptService.CheckDeptNameUnique(request))
            {
                data.success = false;
                data.msg = "部门名称已存在！";
                return data;
            }
            request.CreateBy = CurrentUser.LoginName;
            request.UpdateBy = CurrentUser.LoginName;

            data.data = await _sysDeptService.InsertDept(request);
            if (data.data > 0)
            {
                data.success = true;
                data.msg = Resource_SysBase.OprateSuccess;
            }
            else
            {
                data.success = false;
                data.msg = Resource_SysBase.OprateFail;
            }
            return data;
        }

        /// <summary>
        /// 更新一条数据
        /// </summary>
        /// <param name="request">SysDept</param>
        /// <returns></returns>
        [HttpPost]
        public async Task<MessageModel<bool>> Update([FromBody] SysDept request)
        {
            var data = new MessageModel<bool>();

            if (!await _sysDeptService.CheckDeptNameUnique(request))
            {
                data.success = false;
                data.msg = "部门名称已存在！";
                return data;
            }
            else if (request.ParentID == request.DeptID)
            {
                data.success = false;
                data.msg = "上级部门不能是自己！";
                return data;
            }
            else if (request.Status == SysConst.DISABLE)
            {
                //禁用部门需先禁用所有子部门
                var existChildren = await _sysDeptService.SelectNormalChildrenDeptById(request.DeptID);
                if (existChildren > 0)
                {
                    data.success = false;
                    data.msg = "该部门包含未停用的子部门！";
                    return data;
                }
            }

            data.success = await _sysDeptService.UpdateDept(request);

            if (data.success)
            {
                data.msg = Resource_SysBase.OprateSuccess;
            }
            else
            {
                data.msg = Resource_SysBase.OprateFail;
            }

            return data;
        }

        /// <summary>
        /// 删除一条数据
        /// </summary>
        /// <param name="id">主键</param>
        /// <returns></returns>
        [HttpPost]
        public async Task<MessageModel<bool>> Del(int id)
        {
            var data = new MessageModel<bool>();

            if (await _sysDeptService.HasChildByDeptId(id))
            {
                data.success = false;
                data.msg = "存在下级部门，不允许删除！";
                return data;
            }
            if (await _sysDeptService.CheckDeptExistUser(id))
            {
                data.success = false;
                data.msg = "部门存在用户，不允许删除！";
                return data;
            }

            data.success = await _sysDeptService.DeleteDeptById(id, CurrentUser.LoginName);
            if (data.success)
            {
                data.msg = Resource_SysBase.OprateSuccess;
            }
            else
            {
                data.msg = Resource_SysBase.OprateFail;
            }
            return data;
        }

        /// <summary>
        /// 查询部门列表（排除节点）
        /// </summary>
        [HttpGet]
        public async Task<MessageModel<List<TreeSelect>>> ExcludeChild(int deptId)
        {
            var detptList = new List<SysDept>();
            var depts = await _sysDeptService.SelectDeptAll();
            foreach (var item in depts)
            {
                if (item.DeptID != deptId && item.Ancestors.IsNotEmptyOrNull() && !item.Ancestors.Split(",").Contains(deptId.ToString()))
                {
                    detptList.Add(item);
                }
            }
            return Success(_sysDeptService.BuildDeptTreeSelect(detptList));
        }

        /// <summary>
        /// 获取部门下拉树列表
        /// </summary>
        [HttpGet]
        public async Task<MessageModel<List<TreeSelect>>> TreeSelect()
        {
            var depts = await _sysDeptService.SelectDeptAll();
            return Success(_sysDeptService.BuildDeptTreeSelect(depts));
        }


        /// <summary>
        /// 获取部门下拉树列表
        /// </summary>
        [HttpGet]
        public async Task<MessageModel<List<TreeSelect>>> TreeSelectByPid(int id)
        {
            var depts = await _sysDeptService.QueryAsync(x => x.DelFlag == false && x.Status == SysConst.ENABLE && x.ParentID == id);
            return Success(_sysDeptService.BuildDeptTreeSelect(depts));
        }

        /// <summary>
        /// 加载对应角色部门列表树
        /// </summary>
        [HttpGet]
        public async Task<MessageModel<TreeNode>> RoleDeptTreeSelect(int roleId)
        {
            var depts = await _sysDeptService.SelectDeptAll();
            var roleDepts = await _sysRoleDeptService.QueryAsync(x => x.RoleID == roleId);
            TreeNode tree = new TreeNode()
            {
                CheckedKeys = roleDepts.Select(x => (int)x.DeptID).ToList(),
                TreeSelects = _sysDeptService.BuildDeptTreeSelect(depts)
            };
            return Success(tree);
        }

    }
}