using System;
using System.Linq;
using System.Linq.Expressions;
using OpenAuth.Domain.Interface;

namespace OpenAuth.Domain.Service
{
 /// <summary>
 /// 领域服务
 /// <para>进出库管理服务</para>
 /// </summary>
 public class StockManagerService
 {
 private IStockRepository _repository;
 private IOrgRepository _orgRepository;
 private AuthoriseService _authoriseService;

 public StockManagerService(IStockRepository repository,
 IOrgRepository orgRepository, AuthoriseService service)
 {
 _repository = repository;
 _orgRepository = orgRepository;
 _authoriseService = service;
 }

 /// <summary>
 /// 根据部门ID得到进出库信息
 /// </summary>
 public dynamic Load(string username, Guid orgId, int pageindex, int pagesize)
 {

 _authoriseService.LoadAuthControls(username);
 if (_authoriseService.Orgs.Count == 0) //用户没有任何可见机构
 {
 return new
 {
 total = 0,
 pageCurrent = pageindex
 };
 }

 var orgIds = _authoriseService.Orgs.Select(u => u.Id).ToArray(); //用户可访问的机构ID

 var orgs = _orgRepository.GetSubOrgs(orgId) //点击的节点与用户可访问的机构合并
 .Where(u => orgIds.Contains(u.Id))
 .Select(u => u.Id).ToArray();

 var keys = _authoriseService.Resources.Select(r => r.Key); //用户可访问的资源的KEY列表

 Expression<Func<Stock, bool>> exp = u => u.OrgId != null &&orgs.Contains(u.OrgId.Value) && (u.Viewable == "" || keys.Contains(u.Viewable));
 var stocks = _repository.Find(pageindex, pagesize, "", exp);
 int total = _repository.GetCount(exp);


 return new
 {
 total = total,
 list = stocks,
 pageCurrent = pageindex
 };
 }

 public Stock Find(Guid id)
 {
 var stock = _repository.FindSingle(u => u.Id == id);
 if (stock == null) return new Stock();

 return stock;
 }

 public void Delete(Guid id)
 {
 _repository.Delete(id);
 }

 public void AddOrUpdate(Stock stock)
 {

 if (stock.Id == Guid.Empty)
 {
 _repository.Add(stock);
 }
 else
 {
 _repository.Update(stock);
 }

 }
 }
}