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using learun.iapplication;
using learun.util;
using System;
using System.Collections.Generic;
using System.Text;
using System.Threading.Tasks;
namespace learun.application
{
/// <summary>
/// 版 本 EasyCode EC管理后台
/// Copyright (c) 2019-present EC管理有限公司
/// 创建人:tobin
/// 日 期:2019.11.05
/// 描 述:即时通讯消息内容
/// </summary>
public class IMMsgService : ServiceBase
{
private readonly IMContactsService iMContactsService = new IMContactsService();
#region 构造函数和属性
private readonly string fieldSql;
/// <summary>
///
/// </summary>
public IMMsgService()
{
fieldSql = @"
t.F_MsgId,
t.F_IsSystem,
t.F_SendUserId,
t.F_RecvUserId,
t.F_Content,
t.F_CreateDate
";
}
#endregion 构造函数和属性
#region 获取数据
/// <summary>
/// 获取列表数据(最近的10条聊天记录)
/// </summary>
/// <returns></returns>
public async Task<IEnumerable<IMMsgEntity>> GetList(string sendUserId, string recvUserId)
{
var strSql = new StringBuilder();
strSql.Append("SELECT ");
strSql.Append(fieldSql);
strSql.Append(" FROM LR_IM_Msg t where (t.F_SendUserId = @sendUserId and t.F_RecvUserId = @recvUserId ) or (t.F_SendUserId = @recvUserId and t.F_RecvUserId = @sendUserId ) ");
Pagination pagination = new Pagination
{
page = 1,
rows = 10,
sidx = "F_CreateDate",
sord = "DESC"
};
await this.BaseRepository().ExecuteSql(" Update LR_IM_Contacts Set F_ISREAD = 2 where F_MyUserId = @sendUserId AND F_OtherUserId = @recvUserId ", new { sendUserId, recvUserId });
return await this.BaseRepository().FindList<IMMsgEntity>(strSql.ToString(), new { sendUserId, recvUserId }, pagination);
}
/// <summary>
/// 获取列表数据(小于某个时间点的5条记录)
/// </summary>
/// <param name="myUserId">我的ID</param>
/// <param name="otherUserId">对方的ID</param>
/// <param name="time">时间</param>
/// <returns></returns>
public Task<IEnumerable<IMMsgEntity>> GetListByTime(string myUserId, string otherUserId, DateTime time)
{
var strSql = new StringBuilder();
strSql.Append("SELECT ");
strSql.Append(fieldSql);
strSql.Append(" FROM LR_IM_Msg t where ((t.F_SendUserId = @myUserId and t.F_RecvUserId = @otherUserId ) or (t.F_SendUserId = @otherUserId and t.F_RecvUserId = @myUserId )) AND t.F_CreateDate <= @time ");
Pagination pagination = new Pagination();
pagination.page = 1;
pagination.rows = 5;
pagination.sidx = "F_CreateDate";
pagination.sord = "DESC";
return this.BaseRepository().FindList<IMMsgEntity>(strSql.ToString(), new { myUserId, otherUserId, time }, pagination);
}
/// <summary>
/// 获取列表数据(大于某个时间的所有数据)
/// </summary>
/// <param name="myUserId">我的ID</param>
/// <param name="otherUserId">对方的ID</param>
/// <param name="time">时间</param>
/// <returns></returns>
public Task<IEnumerable<IMMsgEntity>> GetListByTime2(string myUserId, string otherUserId, DateTime time)
{
time = time.AddSeconds(1);
var strSql = new StringBuilder();
strSql.Append("SELECT ");
strSql.Append(fieldSql);
strSql.Append(" FROM LR_IM_Msg t where ((t.F_SendUserId = @myUserId and t.F_RecvUserId = @otherUserId ) or (t.F_SendUserId = @otherUserId and t.F_RecvUserId = @myUserId )) AND t.F_CreateDate >= @time Order By F_CreateDate ASC ");
return this.BaseRepository().FindList<IMMsgEntity>(strSql.ToString(), new { myUserId, otherUserId, time });
}
/// <summary>
/// 获取列表分页数据
/// </summary>
/// <param name="pagination">分页参数</param>
/// <param name="sendUserId"></param>
/// <param name="recvUserId"></param>
/// <param name="keyword"></param>
/// <returns></returns>
public Task<IEnumerable<IMMsgEntity>> GetPageList(Pagination pagination, string sendUserId, string recvUserId, string keyword)
{
var strSql = new StringBuilder();
strSql.Append("SELECT ");
strSql.Append(fieldSql);
strSql.Append(" FROM LR_IM_Msg t where ((t.F_SendUserId = @sendUserId and t.F_RecvUserId = @recvUserId ) or (t.F_SendUserId = @recvUserId and t.F_RecvUserId = @sendUserId )) ");
if (!string.IsNullOrEmpty(keyword))
{
keyword = "%" + keyword + "%";
strSql.Append(" AND F_Content like @keyword ");
}
return this.BaseRepository().FindList<IMMsgEntity>(strSql.ToString(), new { sendUserId, recvUserId, keyword }, pagination);
}
#endregion 获取数据
#region 提交数据
/// <summary>
/// 删除实体数据
/// </summary>
/// <param name="keyValue">主键</param>
/// <returns></returns>
public async Task DeleteEntity(string keyValue)
{
await this.BaseRepository().DeleteAny<IMMsgEntity>(new { F_MsgId = keyValue });
}
/// <summary>
/// 保存实体数据(新增)
/// </summary>
/// <param name="entity">实体数据</param>
/// <returns></returns>
public async Task SaveEntity(IMMsgEntity entity)
{
IMContactsEntity myContacts = new IMContactsEntity();
IMContactsEntity otherContacts = new IMContactsEntity();
myContacts.F_MyUserId = entity.F_SendUserId;
myContacts.F_OtherUserId = entity.F_RecvUserId;
myContacts.F_Content = entity.F_Content;
otherContacts.F_MyUserId = entity.F_RecvUserId;
otherContacts.F_OtherUserId = entity.F_SendUserId;
otherContacts.F_Content = entity.F_Content;
var myContactsTmp = await iMContactsService.GetEntity(myContacts.F_MyUserId, myContacts.F_OtherUserId);
var otherContactsTmp = await iMContactsService.GetEntity(otherContacts.F_MyUserId, otherContacts.F_OtherUserId);
var db = this.BaseRepository().BeginTrans();
try
{
myContacts.F_IsRead = 2;
myContacts.F_Time = DateTime.Now;
if (myContactsTmp == null)
{
myContacts.F_Id = Guid.NewGuid().ToString();
await db.Insert(myContacts);
}
else
{
myContacts.F_Id = myContactsTmp.F_Id;
await db.Update(myContacts);
}
otherContacts.F_IsRead = 1;
otherContacts.F_Time = DateTime.Now;
if (otherContactsTmp == null)
{
otherContacts.F_Id = Guid.NewGuid().ToString();
await db.Insert(otherContacts);
}
else
{
otherContacts.F_Id = otherContactsTmp.F_Id;
await db.Update(otherContacts);
}
entity.F_MsgId = Guid.NewGuid().ToString();
entity.F_CreateDate = DateTime.Now;
await db.Insert(entity);
db.Commit();
}
catch (Exception)
{
db.Rollback();
throw;
}
}
#endregion 提交数据
}
}