feat: add cloud save backend

server/api/v1/client/saves/[gameid]/index.get.ts

@@ -0,0 +1,37 @@
+import { ClientCapabilities } from "@prisma/client";
+import { defineClientEventHandler } from "~/server/internal/clients/event-handler";
+import prisma from "~/server/internal/db/database";
+
+export default defineClientEventHandler(
+  async (h3, { fetchClient, fetchUser }) => {
+    const client = await fetchClient();
+    if (!client.capabilities.includes(ClientCapabilities.CloudSaves))
+      throw createError({
+        statusCode: 403,
+        statusMessage: "Capability not allowed.",
+      });
+    const user = await fetchUser();
+    const gameId = getRouterParam(h3, "gameid");
+    if (!gameId)
+      throw createError({
+        statusCode: 400,
+        statusMessage: "No gameID in route params",
+      });
+
+    const game = await prisma.game.findUnique({
+      where: { id: gameId },
+      select: { id: true },
+    });
+    if (!game)
+      throw createError({ statusCode: 400, statusMessage: "Invalid game ID" });
+
+    const saves = await prisma.saveSlot.findMany({
+      where: {
+        userId: user.id,
+        gameId: gameId,
+      },
+    });
+
+    return saves;
+  }
+);