first commit

calcom/packages/app-store/_utils/installation.ts

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+import type { Prisma } from "@prisma/client";
+
+import { HttpError } from "@calcom/lib/http-error";
+import prisma from "@calcom/prisma";
+import type { UserProfile } from "@calcom/types/UserProfile";
+
+export async function checkInstalled(slug: string, userId: number) {
+  const alreadyInstalled = await prisma.credential.findFirst({
+    where: {
+      appId: slug,
+      userId: userId,
+    },
+  });
+  if (alreadyInstalled) {
+    throw new HttpError({ statusCode: 422, message: "Already installed" });
+  }
+}
+
+type InstallationArgs = {
+  appType: string;
+  user: {
+    id: number;
+    profile?: UserProfile;
+  };
+  slug: string;
+  key?: Prisma.InputJsonValue;
+  teamId?: number;
+  subscriptionId?: string | null;
+  paymentStatus?: string | null;
+  billingCycleStart?: number | null;
+};
+
+export async function createDefaultInstallation({
+  appType,
+  user,
+  slug,
+  key = {},
+  teamId,
+  billingCycleStart,
+  paymentStatus,
+  subscriptionId,
+}: InstallationArgs) {
+  const installation = await prisma.credential.create({
+    data: {
+      type: appType,
+      key,
+      ...(teamId ? { teamId } : { userId: user.id }),
+      appId: slug,
+      subscriptionId,
+      paymentStatus,
+      billingCycleStart,
+    },
+  });
+  if (!installation) {
+    throw new Error(`Unable to create user credential for type ${appType}`);
+  }
+  return installation;
+}