[backend/core] Add lastActiveDate column to oauth_token and session tables

Iceshrimp.Backend/Core/Database/Migrations/20240224214251_AddOauthTokenAndSessionLastActiveDate.cs

@@ -0,0 +1,39 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace Iceshrimp.Backend.Core.Database.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddOauthTokenAndSessionLastActiveDate : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<DateTime>(
+                name: "lastActiveDate",
+                table: "session",
+                type: "timestamp with time zone",
+                nullable: true);
+
+            migrationBuilder.AddColumn<DateTime>(
+                name: "lastActiveDate",
+                table: "oauth_token",
+                type: "timestamp with time zone",
+                nullable: true);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "lastActiveDate",
+                table: "session");
+
+            migrationBuilder.DropColumn(
+                name: "lastActiveDate",
+                table: "oauth_token");
+        }
+    }
+}

Iceshrimp.Backend/Core/Database/Migrations/DatabaseContextModelSnapshot.cs

@@ -3174,6 +3174,10 @@ namespace Iceshrimp.Backend.Core.Database.Migrations
                         .HasColumnName("createdAt")
                         .HasComment("The created date of the OAuth token");
 
+                    b.Property<DateTime?>("LastActiveDate")
+                        .HasColumnType("timestamp with time zone")
+                        .HasColumnName("lastActiveDate");
+
                     b.Property<string>("RedirectUri")
                         .IsRequired()
                         .HasMaxLength(512)
@@ -3738,6 +3742,10 @@ namespace Iceshrimp.Backend.Core.Database.Migrations
                         .HasColumnName("createdAt")
                         .HasComment("The created date of the OAuth token");
 
+                    b.Property<DateTime?>("LastActiveDate")
+                        .HasColumnType("timestamp with time zone")
+                        .HasColumnName("lastActiveDate");
+
                     b.Property<string>("Token")
                         .IsRequired()
                         .HasMaxLength(64)

Iceshrimp.Backend/Core/Database/Tables/OauthToken.cs

@@ -67,4 +67,6 @@ public class OauthToken
 
 	[Column("supportsHtmlFormatting")] public bool SupportsHtmlFormatting { get; set; }
 	[Column("autoDetectQuotes")]       public bool AutoDetectQuotes       { get; set; }
+
+	[Column("lastActiveDate")] public DateTime? LastActiveDate { get; set; }
 }

Iceshrimp.Backend/Core/Database/Tables/Session.cs

@@ -37,4 +37,6 @@ public class Session
 	[ForeignKey("UserId")]
 	[InverseProperty(nameof(Tables.User.Sessions))]
 	public virtual User User { get; set; } = null!;
+
+	[Column("lastActiveDate")] public DateTime? LastActiveDate { get; set; }
 }

Iceshrimp.Backend/Core/Middleware/AuthenticationMiddleware.cs

@@ -56,7 +56,7 @@ public class AuthenticationMiddleware(DatabaseContext db, UserService userSvc) :
 					return;
 				}
 
-				userSvc.UpdateUserLastActive(oauthToken.User);
+				userSvc.UpdateOauthTokenMetadata(oauthToken);
 				ctx.SetOauthToken(oauthToken);
 			}
 			else
@@ -80,7 +80,7 @@ public class AuthenticationMiddleware(DatabaseContext db, UserService userSvc) :
 					return;
 				}
 
-				userSvc.UpdateUserLastActive(session.User);
+				userSvc.UpdateSessionMetadata(session);
 				ctx.SetSession(session);
 			}
 		}

Iceshrimp.Backend/Core/Services/UserService.cs

@@ -348,7 +348,33 @@ public class UserService(
 			await driveSvc.RemoveFile(user.Banner);
 	}
 
-	public void UpdateUserLastActive(User user)
+	public void UpdateOauthTokenMetadata(OauthToken token)
+	{
+		UpdateUserLastActive(token.User);
+
+		if (token.LastActiveDate != null && token.LastActiveDate > DateTime.UtcNow - TimeSpan.FromHours(1)) return;
+
+		_ = followupTaskSvc.ExecuteTask("UpdateOauthTokenMetadata", async provider =>
+		{
+			var bgDb = provider.GetRequiredService<DatabaseContext>();
+			await bgDb.OauthTokens.Where(p => p.Id == token.Id)
+			          .ExecuteUpdateAsync(p => p.SetProperty(u => u.LastActiveDate, DateTime.UtcNow));
+		});
+	}
+
+	public void UpdateSessionMetadata(Session session)
+	{
+		UpdateUserLastActive(session.User);
+
+		_ = followupTaskSvc.ExecuteTask("UpdateSessionMetadata", async provider =>
+		{
+			var bgDb = provider.GetRequiredService<DatabaseContext>();
+			await bgDb.Sessions.Where(p => p.Id == session.Id)
+			          .ExecuteUpdateAsync(p => p.SetProperty(u => u.LastActiveDate, DateTime.UtcNow));
+		});
+	}
+
+	private void UpdateUserLastActive(User user)
 	{
 		if (user.LastActiveDate != null && user.LastActiveDate > DateTime.UtcNow - TimeSpan.FromHours(1)) return;