seed.js

import { PrismaClient } from "@prisma/client";
import { faker } from "@faker-js/faker";

const prisma = new PrismaClient();

async function main() {
  // Create 10 users
  const users = await Promise.all(
    Array.from({ length: 10 }).map(() =>
      prisma.user.create({
        data: {
          name: faker.person.fullName(),
          address:
            faker.location.streetAddress() + ", " + faker.location.city(),
          email: faker.internet.email(),
        },
      })
    )
  );

  // Create 10 products
  const products = await Promise.all(
    Array.from({ length: 10 }).map(() =>
      prisma.product.create({
        data: {
          name: faker.commerce.productName(),
          description: faker.commerce.productDescription(),
          price: parseFloat(faker.commerce.price()),
        },
      })
    )
  );

  // Generate 100 orders, each associated with a random user
  for (let i = 0; i < 100; i++) {
    // Randomly select a user for this order
    const randomUser = users[Math.floor(Math.random() * users.length)];
    await prisma.order.create({
      data: {
        userId: randomUser.id,
        fulfillmentStatus: faker.helpers.arrayElement([
          "Pending",
          "Shipped",
          "Delivered",
        ]),
        lineItems: {
          create: Array.from({
            length: faker.number.int({ min: 1, max: 5 }),
          }).map(() => {
            const randomProduct =
              products[Math.floor(Math.random() * products.length)];
            return {
              productId: randomProduct.id,
              quantity: faker.number.int({ min: 1, max: 3 }),
            };
          }),
        },
      },
    });
  }

  console.log("Database seeded with 10 users, 10 products, and 100 orders.");
}

main()
  .catch((e) => {
    console.error(e);
    process.exit(1);
  })
  .finally(async () => {
    await prisma.$disconnect();
  });