using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace BLL
{
    public static class ChemicalReportService
    {
        /// <summary>
        /// 化工行业能源节约与生态环境保护汇总表
        /// </summary>
        /// <param name="ChemicalReportId">化工行业能源节约与生态环境保护汇总表Id</param>
        /// <returns>化工行业能源节约与生态环境保护汇总表</returns>
        public static Model.Environmental_ChemicalReport GetChemicalReportByChemicalReportId(string ChemicalReportId)
        {
            return Funs.DB.Environmental_ChemicalReport.FirstOrDefault(e => e.ChemicalReportId == ChemicalReportId);
        }

        /// <summary>
        /// 化工行业能源节约与生态环境保护汇总表
        /// </summary>
        /// <param name="unitId">单位Id</param>
        /// <param name = "year" > 年度 </ param >
        /// <param name="month">月份</param>
        /// <returns>化工行业能源节约与生态环境保护汇总表</returns>
        public static Model.Environmental_ChemicalReport GetChemicalReportByUnitIdAndYearAndMonth(string unitId, int year, int month)
        {
            return Funs.DB.Environmental_ChemicalReport.FirstOrDefault(e => e.UnitId == unitId && e.Month == month && e.Year == year);
        }

        /// <summary>
        /// 根据单位Id获取化工行业能源节约与生态环境保护汇总表集合
        /// </summary>
        /// <param name="UnitId">单位Id</param>
        /// <returns>化工行业能源节约与生态环境保护汇总表集合</returns>
        public static List<Model.View_Environmental_ChemicalReport> GetChemicalReportsByUnitId(string UnitId)
        {
            return (from x in Funs.DB.View_Environmental_ChemicalReport where x.UnitId == UnitId orderby x.FillingDate descending select x).ToList();
        }

        /// <summary>
        /// 增加化工行业能源节约与生态环境保护汇总表
        /// </summary>
        /// <param name="ChemicalReport">化工行业能源节约与生态环境保护汇总表实体</param>
        public static void AddChemicalReport(Model.Environmental_ChemicalReport ChemicalReport)
        {
            Model.Environmental_ChemicalReport newChemicalReport = new Model.Environmental_ChemicalReport
            {
                ChemicalReportId = ChemicalReport.ChemicalReportId,
                Year = ChemicalReport.Year,
                Month = ChemicalReport.Month,
                UnitId = ChemicalReport.UnitId,
                FillingDate = ChemicalReport.FillingDate,
                DutyPerson = ChemicalReport.DutyPerson,
                FillingMan = ChemicalReport.FillingMan,
                UpState = ChemicalReport.UpState,
            };

            Funs.DB.Environmental_ChemicalReport.InsertOnSubmit(newChemicalReport);
            Funs.DB.SubmitChanges();
        }

        /// <summary>
        /// 修改化工行业能源节约与生态环境保护汇总表
        /// </summary>
        /// <param name="ChemicalReport">化工行业能源节约与生态环境保护汇总表实体</param>
        public static void UpdateChemicalReport(Model.Environmental_ChemicalReport ChemicalReport)
        {
            Model.Environmental_ChemicalReport newChemicalReport = Funs.DB.Environmental_ChemicalReport.FirstOrDefault(e => e.ChemicalReportId == ChemicalReport.ChemicalReportId);
            if (newChemicalReport != null)
            {
                newChemicalReport.Year = ChemicalReport.Year;
                newChemicalReport.Month = ChemicalReport.Month;
                newChemicalReport.UnitId = ChemicalReport.UnitId;
                newChemicalReport.FillingDate = ChemicalReport.FillingDate;
                newChemicalReport.DutyPerson = ChemicalReport.DutyPerson;
                newChemicalReport.UpState = ChemicalReport.UpState;

                Funs.DB.SubmitChanges();
            }
        }

        /// <summary>
        /// 根据Id获取数据
        /// </summary>
        /// <param name="ChemicalReportId"></param>
        public static void DeleteChemicalReportByChemicalReportId(string ChemicalReportId)
        {
            Model.Environmental_ChemicalReport newChemicalReport = Funs.DB.Environmental_ChemicalReport.FirstOrDefault(e => e.ChemicalReportId == ChemicalReportId);
            if (newChemicalReport != null)
            {
                Funs.DB.Environmental_ChemicalReport.DeleteOnSubmit(newChemicalReport);
                Funs.DB.SubmitChanges();
            }
        }

        /// <summary>
        /// 根据报表单位，报表时间判断是否存在
        /// </summary>
        /// <param name="Id">Id</param>
        /// <returns></returns>
        public static Model.Environmental_ChemicalReport GetChemicalReportByUnitIdDate(string unitId, int year, int Month)
        {
            return Funs.DB.Environmental_ChemicalReport.FirstOrDefault(e => e.UnitId == unitId && e.Year == year && e.Month == Month);
        }

        /// <summary>
        /// 根据报表单位，报表年份获取对应集合
        /// </summary>
        /// <param name="Id">Id</param>
        /// <returns></returns>
        public static List<Model.Environmental_ChemicalReport> GetChemicalReportByUnitIdYear(string unitId, int year)
        {
            return (from x in Funs.DB.Environmental_ChemicalReport where x.UnitId == unitId && x.Year == year select x).ToList();
        }
    }
}