using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using EMIS.CommonLogic.Students;
using EMIS.ViewModel;
using EMIS.Web.Controls;
using EMIS.Utility;
using System.Dynamic;
using EMIS.ViewModel.DifferentDynamic;
using Bowin.Common.Mvc;
using Bowin.Common.Utility;
using Bowin.Common.Linq;
using EMIS.Entities;

namespace EMIS.Web.Controllers.DifferentDynamic
{
    /// <summary>
    /// 异动统计
    /// </summary>
    [Authorization]
    public class DifferentDynamicStatisticsController : JsonNetController
    {
        public IDifferentDynamicServices DifferentDynamicServices { get; set; }

        /// <summary>
        /// 
        /// </summary>
        /// <returns></returns>
        public ActionResult List()
        {
            var differentDynamicTypes = DictionaryHelper.GetDictionaryValue(DictionaryItem.CF_ChangeType);

            ViewBag.DifferentDynamicTypes = differentDynamicTypes;

            return View();
        }

        /// <summary>
        /// 列表查询
        /// </summary>
        /// <param name="pararms"></param>
        /// <returns></returns>
        [HttpPost]
        public ActionResult List(QueryParamsModel pararms)
        {
            var configuretView = ConfiguretExtensions.GetConfiguretermsView(pararms);
            var campusID = pararms.getExtraGuid("CampusDropdown"); //校区
            var collegeID = pararms.getExtraGuid("CollegeDropdown"); //院系所
            var schoolYearID = pararms.getExtraGuid("SchoolYearDropdown"); //异动学期

            var result = DifferentDynamicServices.GetDifferentDynamicStatistics(configuretView, campusID, collegeID, schoolYearID);

            var differentDynamicTypes = DictionaryHelper.GetDictionaryValue(DictionaryItem.CF_ChangeType);
            var list = WrapResult(result, differentDynamicTypes);

            return Json(new { total = list.Count, rows = list });
        }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="result"></param>
        /// <param name="differentDynamicTypes"></param>
        /// <returns></returns>
        private List<ExpandoObject> WrapResult(ICollection<DifferentDynamicStatisticsView> result, IEnumerable<Sys_DictionaryItem> differentDynamicTypes)
        {
            var list = new List<ExpandoObject>();

            if (result == null || result.Count == 0)
            {
                return list;
            }

            var colleges = result.Select(s => new { s.CollegeID, s.CollegeName }).OrderBy(o => o.CollegeName).Distinct().ToList();

            foreach (var college in colleges)
            {
                dynamic item = new ExpandoObject();

                item.CollegeName = college.CollegeName;

                DifferentDynamicStatisticsView covarianceItem = null;
                foreach (var differentDynamicType in differentDynamicTypes)
                {
                    covarianceItem = result.FirstOrDefault(w => w.CollegeID == college.CollegeID && w.DifferentDynamicType == differentDynamicType.Value);
                    var quantity = covarianceItem == null ? 0 : covarianceItem.Quantity;

                    ((IDictionary<string, object>)item).Add("Item" + differentDynamicType.Value, quantity.ToString());
                }

                list.Add(item);
            }

            return list;
        }

        /// <summary>
        /// 
        /// </summary>
        /// <returns></returns>
        [HttpPost]
        public ActionResult Excel()
        {
            NpoiExcelHelper neh = new NpoiExcelHelper();
            ConfiguretView configuretView = ConfiguretExtensions.GetConfiguretermsView(null);
            
            var campusID = Request.Form["CampusDropdown"].ParseStrTo<Guid>(); //校区
            var collegeID = Request.Form["CollegeDropdown"].ParseStrTo<Guid>(); //院系所
            var schoolYearID = Request.Form["SchoolYearDropdown"].ParseStrTo<Guid>();  //异动学期

            var result = DifferentDynamicServices.GetDifferentDynamicStatistics(configuretView, campusID, collegeID, schoolYearID);
            var differentDynamicTypes = DictionaryHelper.GetDictionaryValue(DictionaryItem.CF_ChangeType);
            var dt = WrapResult(result, differentDynamicTypes).ToTable();

            var columns = new List<string> { RSL.Get("College") };

            foreach (var item in differentDynamicTypes)
            {
                columns.Add(item.Name);
            }

            neh.Export(dt, columns.ToArray(), "异动统计");
            return RedirectToAction("MsgShow", "Common", new
            {
                msg = "导出成功！",
                url = Url.Action("List").AddMenuParameter()
            });
        }

    }
}