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

namespace BLL
{
    public static class AuditFlowApproveService
    {
        /// <summary>
        /// 返回对应主表的审批明细
        /// </summary>
        /// <param name="toKey"></param>
        /// <returns></returns>
        public static List<Model.AuditFlowApprove> GetAuditFlowApprove(string toKey)
        {
            return Funs.DB.AuditFlowApprove.Where(e => e.ToKey == toKey).ToList();
        }

        /// <summary>
        /// 返回对应主表的审批明细
        /// </summary>
        /// <param name="toKey"></param>
        /// <returns></returns>
        public static Model.AuditFlowApprove GetAuditFlowApproveByToKey(string toKey)
        {
            return Funs.DB.AuditFlowApprove.FirstOrDefault(x => x.ToKey == toKey && x.HandleDate == null);
        }

        /// <summary>
        /// 返回对应主表是否存在审批明细
        /// </summary>
        /// <param name="toKey"></param>
        /// <returns></returns>
        public static bool IsExitsAuditFlowApproveByToKey(string toKey)
        {
            return (from x in Funs.DB.AuditFlowApprove where x.ToKey == toKey select x).Count()>0;
        }

        /// <summary>
        /// 添加审批明细信息
        /// </summary>
        /// <param name="flow"></param>
        public static void AddAuditFlowApprove(Model.AuditFlowApprove approve)
        {
            Model.SGGLDB db = Funs.DB;
            string newKeyID = SQLHelper.GetNewID(typeof(Model.AuditFlowApprove));
            Model.AuditFlowApprove newApprove = new Model.AuditFlowApprove();
            newApprove.AuditFlowApproveId = newKeyID;
            newApprove.ToKey = approve.ToKey;
            newApprove.MenuId = approve.MenuId;
            newApprove.HandleUser = approve.HandleUser;
            newApprove.HandleDate = approve.HandleDate;
            newApprove.MyOpinions=approve.MyOpinions;
            newApprove.IsAgree = approve.IsAgree;
            newApprove.HandleStep = approve.HandleStep;

            db.AuditFlowApprove.InsertOnSubmit(newApprove);
            db.SubmitChanges();
        }

        /// <summary>
        /// 修改审批明细信息
        /// </summary>
        /// <param name="flow"></param>
        public static void UpdateAuditFlowApprove(Model.AuditFlowApprove approve)
        {
            Model.SGGLDB db = Funs.DB;
            Model.AuditFlowApprove newApprove = db.AuditFlowApprove.FirstOrDefault(e => e.AuditFlowApproveId == approve.AuditFlowApproveId);
            if (newApprove != null)
            {
                newApprove.ToKey = approve.ToKey;
                newApprove.MenuId = approve.MenuId;
                newApprove.HandleUser = approve.HandleUser;
                newApprove.HandleDate = approve.HandleDate;
                newApprove.MyOpinions = approve.MyOpinions;
                newApprove.IsAgree = approve.IsAgree;
                newApprove.HandleStep = approve.HandleStep;

                db.SubmitChanges();
            }
        }

        /// <summary>
        /// 删除审批明细信息
        /// </summary>
        /// <param name="audiFlowId"></param>
        public static void DeleteAuditFlowApprove(string toKey)
        {
            Model.SGGLDB db = Funs.DB;
            var approves = db.AuditFlowApprove.Where(e => e.ToKey == toKey);
            db.AuditFlowApprove.DeleteAllOnSubmit(approves);
            db.SubmitChanges();
        }

        /// <summary>
        /// 获取审批过程用户
        /// </summary>
        /// <param name="userId"></param>
        /// <returns></returns>
        public static string GetUserName(string toKey, int? type)
        {
            Model.SGGLDB db = Funs.DB;
            string userName = string.Empty;

            var q = from x in db.AuditFlowApprove where x.ToKey ==toKey && x.HandleStep == type && x.HandleDate != null select x;
            if (q.Count() > 0)
            {
                Model.Sys_User m = db.Sys_User.FirstOrDefault(e => e.UserId == q.First().HandleUser);
                if (m != null)
                {
                    userName = m.UserName;
                }
            }
            return userName;
        }

        /// <summary>
        /// 获取发布日期
        /// </summary>
        /// <param name="userId"></param>
        /// <returns></returns>
        public static string GetIssueDate(string toKey, int? type)
        {
            Model.SGGLDB db = Funs.DB;
            string issueDate = string.Empty;

            var q = from x in db.AuditFlowApprove where x.ToKey == toKey && x.HandleStep == type && x.HandleDate != null select x;
            if (q.Count() > 0)
            {
                issueDate = q.First().HandleDate.ToString();
            }
            return issueDate;
        }
    }
}