/// <summary>
/// 声明已经阅读了某条
/// </summary>
/// <param name="messageId"></param>
/// <param name="username"></param>
public static void Read(int messageId, string username)
{
using (Model2DataContext db = new Model2DataContext())
{
Message message = db.PondOfMessage.FirstOrDefault(x => x.Id == messageId);
if (message == null) { throw new Exception("消息不存在"); }
if (message.Readed) { return; }
message.Readed = true;
db.SaveChanges();
}
}
/// <summary>
/// 发送一个新的聊天信息
/// </summary>
/// <param name="_from">发件人</param>
/// <param name="_to">收件人</param>
/// <param name="content">正文</param>
/// <param name="ip">来源地址</param>
/// <param name="address">来源地址</param>
/// <param name="readed">已经阅读</param>
/// <param name="isOfficial">一个布尔值 表示是否官方信息</param>
/// <returns>返回被创建的聊天信息的封装</returns>
public static Message Send(string _from, string _to, string content, string ip, string address
, bool readed, bool isOfficial = false)
{
using (Model2DataContext db = new Model2DataContext())
{
Message message = new Message(_from, _to, content, ip, address, readed, isOfficial);
db.PondOfMessage.Add(message);
db.SaveChanges();
return message;
}
}
/// <summary>
/// 创建一个新的Ip/实际地址对照
/// </summary>
/// <param name="ip">网络地址</param>
/// <param name="address">实际地址</param>
public static void Create(string ip, string address)
{
using (Model2DataContext db = new Model2DataContext())
{
db.PondOfIpToAddress.Where(x => x.Ip == ip)
.ToList()
.ForEach(x => db.PondOfIpToAddress.Remove(x));
IpToAddress t = new IpToAddress(ip, address);
db.PondOfIpToAddress.Add(t);
db.SaveChanges();
}
}
public static string Create(byte[] content)
{
using (Model2DataContext db = new Model2DataContext())
{
string token = Guid.NewGuid().ToString("N");
Picture pic = new Picture(token, content);
db.PondOfPicture.Add(pic);
db.SaveChanges();
return token;
}
}
/// <summary>
/// 读取未读信息列表
/// </summary>
/// <param name="targetUser">对方的用户名</param>
/// <param name="self">自己的用户名</param>
/// <returns>返回未读信息的列表</returns>
public static List<MessageResult> ReadUnreadMessages(string targetUser, string self)
{
using (Model2DataContext db = new Model2DataContext())
{
List<MessageResult> result = new List<MessageResult>();
List<Message> tList = db.PondOfMessage.Where(x => x.From == targetUser && x.To == self && !x.Readed)
.ToList();
tList.ForEach(x =>
{
x.Readed = true;
MessageResult mr = new MessageResult(x, x.From == self);
result.Add(mr);
});
db.SaveChanges();
return result;
}
}