clean up db seeding file (#197)

* improve naming and flow

* make seed code cleaner

* Update dbSeeds.ts

* Update template/app/src/server/scripts/dbSeeds.ts

Co-authored-by: Martin Šošić <Martinsos@users.noreply.github.com>

* cleaner seed script

* Update dbSeeds.ts

---------

Co-authored-by: Martin Šošić <Martinsos@users.noreply.github.com>

template/app/main.wasp

@@ -64,7 +64,7 @@ app OpenSaaS {
     // Run `wasp db seed` to seed the database with the seed functions below:
     seeds: [
       // Populates the database with a bunch of fake users to work with during development.
-      import { devSeedUsers } from "@src/server/scripts/usersSeed.js",
+      import { seedMockUsers } from "@src/server/scripts/dbSeeds",
     ]
   },
 
@@ -100,8 +100,8 @@ entity User {=psl
 
   stripeId                  String?
   checkoutSessionId         String?
-  subscriptionTier          String?
-  subscriptionStatus        String?
+  subscriptionStatus        String?         // 'active', 'canceled', 'past_due', 'deleted', null
+  subscriptionTier          String?         // 'hobby-tier', 'pro-tier', null
   sendEmail                 Boolean         @default(false)
   datePaid                  DateTime?
   credits                   Int             @default(3)

template/app/src/server/scripts/dbSeeds.ts

@@ -0,0 +1,47 @@
+import { type User } from 'wasp/entities';
+import { faker } from '@faker-js/faker';
+import type { PrismaClient } from '@prisma/client';
+import { TierIds } from '../../shared/constants.js';
+import { type SubscriptionStatusOptions } from '../../shared/types.js';
+
+type MockUserData = Omit<User, 'id'>;
+
+/**
+ * This function, which we've imported in `app.db.seeds` in the `main.wasp` file,
+ * seeds the database with mock users via the `wasp db seed` command.
+ * For more info see: https://wasp-lang.dev/docs/data-model/backends#seeding-the-database
+ */
+export async function seedMockUsers(prismaClient: PrismaClient) {
+  await Promise.all(generateMockUsersData(50).map((data) => 
+    prismaClient.user.create({ data }))
+  );
+}
+
+function generateMockUsersData(numOfUsers: number): MockUserData[] {
+  return faker.helpers.multiple(generateMockUserData, { count: numOfUsers });
+}
+
+function generateMockUserData(): MockUserData {
+  const firstName = faker.person.firstName();
+  const lastName = faker.person.lastName();
+  const subscriptionStatus = faker.helpers.arrayElement<SubscriptionStatusOptions>(['active', 'canceled', 'past_due', 'deleted', null]);
+  const now = new Date();
+  const createdAt = faker.date.past({ refDate: now });
+  const lastActiveTimestamp = faker.date.between({ from: createdAt, to: now });
+  const credits = subscriptionStatus ? 0 : faker.number.int({ min: 0, max: 10 });
+  const hasUserPaidOnStripe = !!subscriptionStatus || credits > 3 
+  return {
+    email: faker.internet.email({ firstName, lastName }),
+    username: faker.internet.userName({ firstName, lastName }),
+    createdAt,
+    lastActiveTimestamp,
+    isAdmin: false,
+    sendEmail: false,
+    credits,
+    subscriptionStatus,
+    stripeId: hasUserPaidOnStripe ? `cus_test_${faker.string.uuid()}` : null,
+    datePaid: hasUserPaidOnStripe ? faker.date.between({ from: createdAt, to: lastActiveTimestamp }) : null,
+    checkoutSessionId: hasUserPaidOnStripe ? `cs_test_${faker.string.uuid()}` : null,
+    subscriptionTier: subscriptionStatus ? faker.helpers.arrayElement([TierIds.HOBBY, TierIds.PRO]) : null,
+  };
+}

template/app/src/server/scripts/usersSeed.ts

@@ -1,49 +0,0 @@
-import { type User } from 'wasp/entities';
-import { faker } from '@faker-js/faker';
-import type { PrismaClient } from '@prisma/client';
-import { TierIds } from '../../shared/constants.js';
-
-// in a terminal window run `wasp db seed` to seed your dev database with mock user data
-export function createRandomUser() {
-  const firstName = faker.person.firstName();
-  const lastName = faker.person.lastName();
-  const user: Omit<User, 'id'> = {
-    email: faker.internet.email({
-      firstName,
-      lastName,
-    }),
-    username: faker.internet.userName({
-      firstName,
-      lastName,
-    }),
-    createdAt: faker.date.between({ from: new Date('2023-01-01'), to: new Date() }),
-    lastActiveTimestamp: faker.date.recent(),
-    isAdmin: false,
-    stripeId: `cus_${faker.string.uuid()}`,
-    sendEmail: false,
-    subscriptionStatus: faker.helpers.arrayElement(['active', 'canceled', 'past_due', 'deleted', null]),
-    datePaid: faker.date.recent(),
-    credits: faker.number.int({ min: 0, max: 3 }),
-    checkoutSessionId: null,
-    subscriptionTier: faker.helpers.arrayElement([TierIds.HOBBY, TierIds.PRO]),
-  };
-  return user;
-}
-
-const USERS: Omit<User, 'id'>[] = faker.helpers.multiple(createRandomUser, {
-  count: 50,
-});
-
-export async function devSeedUsers(prismaClient: PrismaClient) {
-  try {
-    await Promise.all(
-      USERS.map(async (user) => {
-        await prismaClient.user.create({
-          data: user,
-        });
-      })
-    );
-  } catch (error) {
-    console.error(error);
-  }
-}