feat: basic playtime backend

prisma/models/client.prisma

@@ -1,7 +1,8 @@
 enum ClientCapabilities {
-    PeerAPI    @map("peerAPI") // other clients can use the HTTP API to P2P with this client
-    UserStatus @map("userStatus") // this client can report this user's status (playing, online, etc etc)
-    CloudSaves @map("cloudSaves") // ability to save to save slots
+    PeerAPI       @map("peerAPI") // other clients can use the HTTP API to P2P with this client
+    UserStatus    @map("userStatus") // this client can report this user's status (playing, online, etc etc)
+    CloudSaves    @map("cloudSaves") // ability to save to save slots
+    TrackPlaytime @map("trackPlaytime") // ability to track user playtime
 }
 
 // References a device

prisma/models/content.prisma

@@ -36,6 +36,7 @@ model Game {
     saves       SaveSlot[]
     screenshots Screenshot[]
     tags        Tag[]
+    playtime    Playtime[]
 
     developers Company[] @relation(name: "developers")
     publishers Company[] @relation(name: "publishers")
@@ -124,6 +125,21 @@ model Screenshot {
     @@index([userId])
 }
 
+model Playtime {
+    gameId String
+    game   Game   @relation(fields: [gameId], references: [id], onDelete: Cascade)
+    userId String
+    user   User   @relation(fields: [userId], references: [id], onDelete: Cascade)
+
+    seconds Int // seconds user has spent playing the game
+
+    updatedAt DateTime @updatedAt @db.Timestamptz(6)
+    createdAt DateTime @default(now()) @db.Timestamptz(6)
+
+    @@id([gameId, userId])
+    @@index([userId])
+}
+
 model Company {
     id String @id @default(uuid())
 

prisma/models/user.prisma

@@ -19,6 +19,7 @@ model User {
 
     saves       SaveSlot[]
     screenshots Screenshot[]
+    playtime    Playtime[]
 }
 
 model Notification {

server/internal/clients/capabilities.ts

@@ -10,6 +10,7 @@ export enum InternalClientCapability {
   PeerAPI = "peerAPI",
   UserStatus = "userStatus",
   CloudSaves = "cloudSaves",
+  TrackPlaytime = "trackPlaytime",
 }
 
 export const validCapabilities = Object.values(InternalClientCapability);
@@ -79,6 +80,7 @@ class CapabilityManager {
     [InternalClientCapability.PeerAPI]: async () => true,
     [InternalClientCapability.UserStatus]: async () => true, // No requirements for user status
     [InternalClientCapability.CloudSaves]: async () => true, // No requirements for cloud saves
+    [InternalClientCapability.TrackPlaytime]: async () => true,
   };
 
   async validateCapabilityConfiguration(
@@ -160,6 +162,28 @@ class CapabilityManager {
           },
         });
       },
+      [InternalClientCapability.TrackPlaytime]: async function () {
+        const currentClient = await prisma.client.findUnique({
+          where: { id: clientId },
+          select: {
+            capabilities: true,
+          },
+        });
+        if (!currentClient) throw new Error("Invalid client ID");
+        if (
+          currentClient.capabilities.includes(ClientCapabilities.TrackPlaytime)
+        )
+          return;
+
+        await prisma.client.update({
+          where: { id: clientId },
+          data: {
+            capabilities: {
+              push: ClientCapabilities.TrackPlaytime,
+            },
+          },
+        });
+      },
     };
     await upsertFunctions[capability]();
   }

server/internal/playtime/index.ts

@@ -0,0 +1,50 @@
+import prisma from "../db/database";
+
+class PlaytimeManager {
+  /**
+   * Get a user's playtime on a game
+   * @param gameId
+   * @param userId
+   * @returns
+   */
+  async get(gameId: string, userId: string) {
+    return await prisma.playtime.findUnique({
+      where: {
+        gameId_userId: {
+          gameId,
+          userId,
+        },
+      },
+    });
+  }
+
+  /**
+   * Add time to a user's playtime
+   * @param gameId
+   * @param userId
+   * @param seconds seconds played
+   */
+  async add(gameId: string, userId: string, seconds: number) {
+    await prisma.playtime.upsert({
+      where: {
+        gameId_userId: {
+          gameId,
+          userId,
+        },
+      },
+      create: {
+        gameId,
+        userId,
+        seconds,
+      },
+      update: {
+        seconds: {
+          increment: seconds,
+        },
+      },
+    });
+  }
+}
+
+export const playtimeManager = new PlaytimeManager();
+export default playtimeManager;