新增私聊相关

Hotfix/Social/Mail/System/MailManageComponentSystem.cs

@@ -0,0 +1,93 @@
+using Fantasy;
+using Fantasy.Async;
+using Fantasy.Entitas;
+using Fantasy.Entitas.Interface;
+using Fantasy.Helper;
+using NB.Game;
+
+namespace NB.Chat;
+
+public class MailManageComponentDestroySystem : DestroySystem<MailManageComponent>
+{
+    protected override void Destroy(MailManageComponent self)
+    {
+        foreach (var (_, conversation) in self.Conversations)
+        {
+            conversation.Dispose();
+        }
+
+        self.Conversations.Clear();
+    }
+}
+
+public static class MailManageComponentSystem
+{
+    public static async FTask DeleteConversation(this MailManageComponent self, long selfId, long otherId)
+    {
+        var firstId = selfId;
+        var secondId = otherId;
+        if (otherId < selfId)
+        {
+            firstId = otherId;
+            secondId = selfId;
+        }
+
+        var key = $"{firstId}-{secondId}";
+
+        if (self.Conversations.Remove(key, out var conversation))
+        {
+            await MailConversationHelper.DeleteDataBase(conversation.Scene, conversation.Id);
+            conversation.Dispose();
+        }
+    }
+
+    public static async FTask<MailConversation?> GetConversation(this MailManageComponent self, long selfId,
+        long otherId)
+    {
+        var firstId = selfId;
+        var secondId = otherId;
+        if (otherId < selfId)
+        {
+            firstId = otherId;
+            secondId = selfId;
+        }
+
+        var key = $"{firstId}-{secondId}";
+        if (!self.Conversations.TryGetValue(key, out var conversation))
+        {
+            //检查数据库中是否存在
+            conversation = await MailConversationHelper.LoadDataBase(self.Scene, firstId, secondId);
+            if (conversation == null)
+            {
+                //检查id是否合法
+                var roleInfo = await CacheHandler.GetPlayerBasicCacheInfo(self.Scene, otherId);
+                if (roleInfo == null)
+                {
+                    return null;
+                }
+
+                conversation = Entity.Create<MailConversation>(self.Scene, true, true);
+
+                conversation.FirstId = firstId;
+                conversation.SecondId = secondId;
+
+                conversation.Key = key;
+                await conversation.Save(false);
+            }
+
+            self.Conversations.Add(key, conversation);
+        }
+
+        return conversation;
+    }
+
+    public static async FTask<List<MailConversation>> GetConversations(this MailManageComponent self, long id)
+    {
+        List<MailConversation> players =
+            await self.Scene.World.DataBase.QueryByPageOrderBy<MailConversation>(
+                d => d.FirstId == id || d.SecondId == id, 1, 50,
+                d => d.UpdateTime);
+
+        return players;
+    }
+}