29751/backend/src/db/seeders/20231127130745-sample-data.js

const db = require('../models');
const Users = db.users;

const ClassRegistrations = db.class_registrations;

const Classes = db.classes;

const Memberships = db.memberships;

const Payments = db.payments;

const Products = db.products;

const Sales = db.sales;

const UserMemberships = db.user_memberships;

const Organizations = db.organizations;

const ClassRegistrationsData = [
  {
    // type code here for "relation_one" field

    attendance: true,

    // type code here for "relation_one" field
  },

  {
    // type code here for "relation_one" field

    attendance: true,

    // type code here for "relation_one" field
  },

  {
    // type code here for "relation_one" field

    attendance: true,

    // type code here for "relation_one" field
  },

  {
    // type code here for "relation_one" field

    attendance: true,

    // type code here for "relation_one" field
  },

  {
    // type code here for "relation_one" field

    attendance: true,

    // type code here for "relation_one" field
  },
];

const ClassesData = [
  {
    name: 'Yoga Basics',

    description: 'Beginner yoga class focusing on flexibility.',

    // type code here for "relation_one" field

    schedule_date: new Date('2023-10-10'),

    start_time: new Date('09:00'),

    end_time: new Date('10:00'),

    capacity: 20,

    // type code here for "relation_one" field
  },

  {
    name: 'HIIT Workout',

    description: 'High-intensity interval training for all levels.',

    // type code here for "relation_one" field

    schedule_date: new Date('2023-10-11'),

    start_time: new Date('18:00'),

    end_time: new Date('19:00'),

    capacity: 15,

    // type code here for "relation_one" field
  },

  {
    name: 'Pilates Core',

    description: 'Strengthen your core with Pilates exercises.',

    // type code here for "relation_one" field

    schedule_date: new Date('2023-10-12'),

    start_time: new Date('11:00'),

    end_time: new Date('12:00'),

    capacity: 10,

    // type code here for "relation_one" field
  },

  {
    name: 'Zumba Dance',

    description: 'Dance your way to fitness with Zumba.',

    // type code here for "relation_one" field

    schedule_date: new Date('2023-10-13'),

    start_time: new Date('17:00'),

    end_time: new Date('18:00'),

    capacity: 25,

    // type code here for "relation_one" field
  },

  {
    name: 'Spin Class',

    description: 'Cardio workout on stationary bikes.',

    // type code here for "relation_one" field

    schedule_date: new Date('2023-10-14'),

    start_time: new Date('07:00'),

    end_time: new Date('08:00'),

    capacity: 30,

    // type code here for "relation_one" field
  },
];

const MembershipsData = [
  {
    name: 'Basic Plan',

    description: 'Access to gym facilities during off-peak hours.',

    price: 29.99,

    duration: 'Monthly',

    // type code here for "relation_one" field
  },

  {
    name: 'Standard Plan',

    description: 'Full access to gym facilities and group classes.',

    price: 49.99,

    duration: 'Yearly',

    // type code here for "relation_one" field
  },

  {
    name: 'Premium Plan',

    description: 'Includes personal training sessions and spa access.',

    price: 79.99,

    duration: 'Monthly',

    // type code here for "relation_one" field
  },

  {
    name: 'Annual Plan',

    description: 'Yearly membership with a discount.',

    price: 499.99,

    duration: 'Monthly',

    // type code here for "relation_one" field
  },

  {
    name: 'Family Plan',

    description: 'Membership for up to four family members.',

    price: 99.99,

    duration: 'Yearly',

    // type code here for "relation_one" field
  },
];

const PaymentsData = [
  {
    // type code here for "relation_one" field

    payment_date: new Date('2023-09-01'),

    amount: 49.99,

    payment_method: 'PayPal',

    transaction_id: 'txn_001',

    payment_type: 'Membership',

    // type code here for "relation_one" field
  },

  {
    // type code here for "relation_one" field

    payment_date: new Date('2023-09-05'),

    amount: 29.99,

    payment_method: 'Stripe',

    transaction_id: 'txn_002',

    payment_type: 'Product',

    // type code here for "relation_one" field
  },

  {
    // type code here for "relation_one" field

    payment_date: new Date('2023-09-10'),

    amount: 79.99,

    payment_method: 'PayPal',

    transaction_id: 'txn_003',

    payment_type: 'Membership',

    // type code here for "relation_one" field
  },

  {
    // type code here for "relation_one" field

    payment_date: new Date('2023-09-15'),

    amount: 99.99,

    payment_method: 'PayPal',

    transaction_id: 'txn_004',

    payment_type: 'Product',

    // type code here for "relation_one" field
  },

  {
    // type code here for "relation_one" field

    payment_date: new Date('2023-09-20'),

    amount: 49.99,

    payment_method: 'PayPal',

    transaction_id: 'txn_005',

    payment_type: 'Product',

    // type code here for "relation_one" field
  },
];

const ProductsData = [
  {
    name: 'Protein Shake',

    description: 'Nutritional protein shake for post-workout recovery.',

    price: 5.99,

    stock_quantity: 100,

    // type code here for "relation_one" field
  },

  {
    name: 'Yoga Mat',

    description: 'Non-slip yoga mat for all levels.',

    price: 19.99,

    stock_quantity: 50,

    // type code here for "relation_one" field
  },

  {
    name: 'Dumbbell Set',

    description: 'Adjustable dumbbell set for strength training.',

    price: 49.99,

    stock_quantity: 30,

    // type code here for "relation_one" field
  },

  {
    name: 'Gym Towel',

    description: 'Absorbent towel for gym use.',

    price: 9.99,

    stock_quantity: 200,

    // type code here for "relation_one" field
  },

  {
    name: 'Water Bottle',

    description: 'Reusable water bottle with gym logo.',

    price: 14.99,

    stock_quantity: 150,

    // type code here for "relation_one" field
  },
];

const SalesData = [
  {
    // type code here for "relation_one" field

    // type code here for "relation_one" field

    quantity: 2,

    sale_date: new Date('2023-09-01'),

    total_amount: 11.98,

    // type code here for "relation_one" field
  },

  {
    // type code here for "relation_one" field

    // type code here for "relation_one" field

    quantity: 1,

    sale_date: new Date('2023-09-05'),

    total_amount: 19.99,

    // type code here for "relation_one" field
  },

  {
    // type code here for "relation_one" field

    // type code here for "relation_one" field

    quantity: 1,

    sale_date: new Date('2023-09-10'),

    total_amount: 49.99,

    // type code here for "relation_one" field
  },

  {
    // type code here for "relation_one" field

    // type code here for "relation_one" field

    quantity: 3,

    sale_date: new Date('2023-09-15'),

    total_amount: 29.97,

    // type code here for "relation_one" field
  },

  {
    // type code here for "relation_one" field

    // type code here for "relation_one" field

    quantity: 1,

    sale_date: new Date('2023-09-20'),

    total_amount: 14.99,

    // type code here for "relation_one" field
  },
];

const UserMembershipsData = [
  {
    // type code here for "relation_one" field

    // type code here for "relation_one" field

    start_date: new Date('2023-01-01'),

    end_date: new Date('2023-12-31'),

    active: true,

    // type code here for "relation_one" field
  },

  {
    // type code here for "relation_one" field

    // type code here for "relation_one" field

    start_date: new Date('2023-02-01'),

    end_date: new Date('2023-08-01'),

    active: true,

    // type code here for "relation_one" field
  },

  {
    // type code here for "relation_one" field

    // type code here for "relation_one" field

    start_date: new Date('2023-03-01'),

    end_date: new Date('2023-09-01'),

    active: true,

    // type code here for "relation_one" field
  },

  {
    // type code here for "relation_one" field

    // type code here for "relation_one" field

    start_date: new Date('2023-04-01'),

    end_date: new Date('2024-04-01'),

    active: true,

    // type code here for "relation_one" field
  },

  {
    // type code here for "relation_one" field

    // type code here for "relation_one" field

    start_date: new Date('2023-05-01'),

    end_date: new Date('2023-11-01'),

    active: true,

    // type code here for "relation_one" field
  },
];

const OrganizationsData = [
  {
    name: 'Max Delbruck',
  },

  {
    name: 'Paul Ehrlich',
  },

  {
    name: 'Edward Teller',
  },

  {
    name: 'Galileo Galilei',
  },

  {
    name: 'Albrecht von Haller',
  },
];

// Similar logic for "relation_many"

async function associateUserWithOrganization() {
  const relatedOrganization0 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const User0 = await Users.findOne({
    order: [['id', 'ASC']],
    offset: 0,
  });
  if (User0?.setOrganization) {
    await User0.setOrganization(relatedOrganization0);
  }

  const relatedOrganization1 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const User1 = await Users.findOne({
    order: [['id', 'ASC']],
    offset: 1,
  });
  if (User1?.setOrganization) {
    await User1.setOrganization(relatedOrganization1);
  }

  const relatedOrganization2 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const User2 = await Users.findOne({
    order: [['id', 'ASC']],
    offset: 2,
  });
  if (User2?.setOrganization) {
    await User2.setOrganization(relatedOrganization2);
  }

  const relatedOrganization3 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const User3 = await Users.findOne({
    order: [['id', 'ASC']],
    offset: 3,
  });
  if (User3?.setOrganization) {
    await User3.setOrganization(relatedOrganization3);
  }

  const relatedOrganization4 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const User4 = await Users.findOne({
    order: [['id', 'ASC']],
    offset: 4,
  });
  if (User4?.setOrganization) {
    await User4.setOrganization(relatedOrganization4);
  }
}

async function associateClassRegistrationWithUser() {
  const relatedUser0 = await Users.findOne({
    offset: Math.floor(Math.random() * (await Users.count())),
  });
  const ClassRegistration0 = await ClassRegistrations.findOne({
    order: [['id', 'ASC']],
    offset: 0,
  });
  if (ClassRegistration0?.setUser) {
    await ClassRegistration0.setUser(relatedUser0);
  }

  const relatedUser1 = await Users.findOne({
    offset: Math.floor(Math.random() * (await Users.count())),
  });
  const ClassRegistration1 = await ClassRegistrations.findOne({
    order: [['id', 'ASC']],
    offset: 1,
  });
  if (ClassRegistration1?.setUser) {
    await ClassRegistration1.setUser(relatedUser1);
  }

  const relatedUser2 = await Users.findOne({
    offset: Math.floor(Math.random() * (await Users.count())),
  });
  const ClassRegistration2 = await ClassRegistrations.findOne({
    order: [['id', 'ASC']],
    offset: 2,
  });
  if (ClassRegistration2?.setUser) {
    await ClassRegistration2.setUser(relatedUser2);
  }

  const relatedUser3 = await Users.findOne({
    offset: Math.floor(Math.random() * (await Users.count())),
  });
  const ClassRegistration3 = await ClassRegistrations.findOne({
    order: [['id', 'ASC']],
    offset: 3,
  });
  if (ClassRegistration3?.setUser) {
    await ClassRegistration3.setUser(relatedUser3);
  }

  const relatedUser4 = await Users.findOne({
    offset: Math.floor(Math.random() * (await Users.count())),
  });
  const ClassRegistration4 = await ClassRegistrations.findOne({
    order: [['id', 'ASC']],
    offset: 4,
  });
  if (ClassRegistration4?.setUser) {
    await ClassRegistration4.setUser(relatedUser4);
  }
}

async function associateClassRegistrationWithOrganization() {
  const relatedOrganization0 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const ClassRegistration0 = await ClassRegistrations.findOne({
    order: [['id', 'ASC']],
    offset: 0,
  });
  if (ClassRegistration0?.setOrganization) {
    await ClassRegistration0.setOrganization(relatedOrganization0);
  }

  const relatedOrganization1 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const ClassRegistration1 = await ClassRegistrations.findOne({
    order: [['id', 'ASC']],
    offset: 1,
  });
  if (ClassRegistration1?.setOrganization) {
    await ClassRegistration1.setOrganization(relatedOrganization1);
  }

  const relatedOrganization2 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const ClassRegistration2 = await ClassRegistrations.findOne({
    order: [['id', 'ASC']],
    offset: 2,
  });
  if (ClassRegistration2?.setOrganization) {
    await ClassRegistration2.setOrganization(relatedOrganization2);
  }

  const relatedOrganization3 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const ClassRegistration3 = await ClassRegistrations.findOne({
    order: [['id', 'ASC']],
    offset: 3,
  });
  if (ClassRegistration3?.setOrganization) {
    await ClassRegistration3.setOrganization(relatedOrganization3);
  }

  const relatedOrganization4 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const ClassRegistration4 = await ClassRegistrations.findOne({
    order: [['id', 'ASC']],
    offset: 4,
  });
  if (ClassRegistration4?.setOrganization) {
    await ClassRegistration4.setOrganization(relatedOrganization4);
  }
}

async function associateClassWithTrainer() {
  const relatedTrainer0 = await Users.findOne({
    offset: Math.floor(Math.random() * (await Users.count())),
  });
  const Class0 = await Classes.findOne({
    order: [['id', 'ASC']],
    offset: 0,
  });
  if (Class0?.setTrainer) {
    await Class0.setTrainer(relatedTrainer0);
  }

  const relatedTrainer1 = await Users.findOne({
    offset: Math.floor(Math.random() * (await Users.count())),
  });
  const Class1 = await Classes.findOne({
    order: [['id', 'ASC']],
    offset: 1,
  });
  if (Class1?.setTrainer) {
    await Class1.setTrainer(relatedTrainer1);
  }

  const relatedTrainer2 = await Users.findOne({
    offset: Math.floor(Math.random() * (await Users.count())),
  });
  const Class2 = await Classes.findOne({
    order: [['id', 'ASC']],
    offset: 2,
  });
  if (Class2?.setTrainer) {
    await Class2.setTrainer(relatedTrainer2);
  }

  const relatedTrainer3 = await Users.findOne({
    offset: Math.floor(Math.random() * (await Users.count())),
  });
  const Class3 = await Classes.findOne({
    order: [['id', 'ASC']],
    offset: 3,
  });
  if (Class3?.setTrainer) {
    await Class3.setTrainer(relatedTrainer3);
  }

  const relatedTrainer4 = await Users.findOne({
    offset: Math.floor(Math.random() * (await Users.count())),
  });
  const Class4 = await Classes.findOne({
    order: [['id', 'ASC']],
    offset: 4,
  });
  if (Class4?.setTrainer) {
    await Class4.setTrainer(relatedTrainer4);
  }
}

async function associateClassWithOrganization() {
  const relatedOrganization0 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const Class0 = await Classes.findOne({
    order: [['id', 'ASC']],
    offset: 0,
  });
  if (Class0?.setOrganization) {
    await Class0.setOrganization(relatedOrganization0);
  }

  const relatedOrganization1 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const Class1 = await Classes.findOne({
    order: [['id', 'ASC']],
    offset: 1,
  });
  if (Class1?.setOrganization) {
    await Class1.setOrganization(relatedOrganization1);
  }

  const relatedOrganization2 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const Class2 = await Classes.findOne({
    order: [['id', 'ASC']],
    offset: 2,
  });
  if (Class2?.setOrganization) {
    await Class2.setOrganization(relatedOrganization2);
  }

  const relatedOrganization3 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const Class3 = await Classes.findOne({
    order: [['id', 'ASC']],
    offset: 3,
  });
  if (Class3?.setOrganization) {
    await Class3.setOrganization(relatedOrganization3);
  }

  const relatedOrganization4 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const Class4 = await Classes.findOne({
    order: [['id', 'ASC']],
    offset: 4,
  });
  if (Class4?.setOrganization) {
    await Class4.setOrganization(relatedOrganization4);
  }
}

async function associateMembershipWithOrganization() {
  const relatedOrganization0 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const Membership0 = await Memberships.findOne({
    order: [['id', 'ASC']],
    offset: 0,
  });
  if (Membership0?.setOrganization) {
    await Membership0.setOrganization(relatedOrganization0);
  }

  const relatedOrganization1 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const Membership1 = await Memberships.findOne({
    order: [['id', 'ASC']],
    offset: 1,
  });
  if (Membership1?.setOrganization) {
    await Membership1.setOrganization(relatedOrganization1);
  }

  const relatedOrganization2 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const Membership2 = await Memberships.findOne({
    order: [['id', 'ASC']],
    offset: 2,
  });
  if (Membership2?.setOrganization) {
    await Membership2.setOrganization(relatedOrganization2);
  }

  const relatedOrganization3 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const Membership3 = await Memberships.findOne({
    order: [['id', 'ASC']],
    offset: 3,
  });
  if (Membership3?.setOrganization) {
    await Membership3.setOrganization(relatedOrganization3);
  }

  const relatedOrganization4 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const Membership4 = await Memberships.findOne({
    order: [['id', 'ASC']],
    offset: 4,
  });
  if (Membership4?.setOrganization) {
    await Membership4.setOrganization(relatedOrganization4);
  }
}

async function associatePaymentWithUser() {
  const relatedUser0 = await Users.findOne({
    offset: Math.floor(Math.random() * (await Users.count())),
  });
  const Payment0 = await Payments.findOne({
    order: [['id', 'ASC']],
    offset: 0,
  });
  if (Payment0?.setUser) {
    await Payment0.setUser(relatedUser0);
  }

  const relatedUser1 = await Users.findOne({
    offset: Math.floor(Math.random() * (await Users.count())),
  });
  const Payment1 = await Payments.findOne({
    order: [['id', 'ASC']],
    offset: 1,
  });
  if (Payment1?.setUser) {
    await Payment1.setUser(relatedUser1);
  }

  const relatedUser2 = await Users.findOne({
    offset: Math.floor(Math.random() * (await Users.count())),
  });
  const Payment2 = await Payments.findOne({
    order: [['id', 'ASC']],
    offset: 2,
  });
  if (Payment2?.setUser) {
    await Payment2.setUser(relatedUser2);
  }

  const relatedUser3 = await Users.findOne({
    offset: Math.floor(Math.random() * (await Users.count())),
  });
  const Payment3 = await Payments.findOne({
    order: [['id', 'ASC']],
    offset: 3,
  });
  if (Payment3?.setUser) {
    await Payment3.setUser(relatedUser3);
  }

  const relatedUser4 = await Users.findOne({
    offset: Math.floor(Math.random() * (await Users.count())),
  });
  const Payment4 = await Payments.findOne({
    order: [['id', 'ASC']],
    offset: 4,
  });
  if (Payment4?.setUser) {
    await Payment4.setUser(relatedUser4);
  }
}

async function associatePaymentWithOrganization() {
  const relatedOrganization0 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const Payment0 = await Payments.findOne({
    order: [['id', 'ASC']],
    offset: 0,
  });
  if (Payment0?.setOrganization) {
    await Payment0.setOrganization(relatedOrganization0);
  }

  const relatedOrganization1 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const Payment1 = await Payments.findOne({
    order: [['id', 'ASC']],
    offset: 1,
  });
  if (Payment1?.setOrganization) {
    await Payment1.setOrganization(relatedOrganization1);
  }

  const relatedOrganization2 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const Payment2 = await Payments.findOne({
    order: [['id', 'ASC']],
    offset: 2,
  });
  if (Payment2?.setOrganization) {
    await Payment2.setOrganization(relatedOrganization2);
  }

  const relatedOrganization3 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const Payment3 = await Payments.findOne({
    order: [['id', 'ASC']],
    offset: 3,
  });
  if (Payment3?.setOrganization) {
    await Payment3.setOrganization(relatedOrganization3);
  }

  const relatedOrganization4 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const Payment4 = await Payments.findOne({
    order: [['id', 'ASC']],
    offset: 4,
  });
  if (Payment4?.setOrganization) {
    await Payment4.setOrganization(relatedOrganization4);
  }
}

async function associateProductWithOrganization() {
  const relatedOrganization0 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const Product0 = await Products.findOne({
    order: [['id', 'ASC']],
    offset: 0,
  });
  if (Product0?.setOrganization) {
    await Product0.setOrganization(relatedOrganization0);
  }

  const relatedOrganization1 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const Product1 = await Products.findOne({
    order: [['id', 'ASC']],
    offset: 1,
  });
  if (Product1?.setOrganization) {
    await Product1.setOrganization(relatedOrganization1);
  }

  const relatedOrganization2 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const Product2 = await Products.findOne({
    order: [['id', 'ASC']],
    offset: 2,
  });
  if (Product2?.setOrganization) {
    await Product2.setOrganization(relatedOrganization2);
  }

  const relatedOrganization3 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const Product3 = await Products.findOne({
    order: [['id', 'ASC']],
    offset: 3,
  });
  if (Product3?.setOrganization) {
    await Product3.setOrganization(relatedOrganization3);
  }

  const relatedOrganization4 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const Product4 = await Products.findOne({
    order: [['id', 'ASC']],
    offset: 4,
  });
  if (Product4?.setOrganization) {
    await Product4.setOrganization(relatedOrganization4);
  }
}

async function associateSaleWithUser() {
  const relatedUser0 = await Users.findOne({
    offset: Math.floor(Math.random() * (await Users.count())),
  });
  const Sale0 = await Sales.findOne({
    order: [['id', 'ASC']],
    offset: 0,
  });
  if (Sale0?.setUser) {
    await Sale0.setUser(relatedUser0);
  }

  const relatedUser1 = await Users.findOne({
    offset: Math.floor(Math.random() * (await Users.count())),
  });
  const Sale1 = await Sales.findOne({
    order: [['id', 'ASC']],
    offset: 1,
  });
  if (Sale1?.setUser) {
    await Sale1.setUser(relatedUser1);
  }

  const relatedUser2 = await Users.findOne({
    offset: Math.floor(Math.random() * (await Users.count())),
  });
  const Sale2 = await Sales.findOne({
    order: [['id', 'ASC']],
    offset: 2,
  });
  if (Sale2?.setUser) {
    await Sale2.setUser(relatedUser2);
  }

  const relatedUser3 = await Users.findOne({
    offset: Math.floor(Math.random() * (await Users.count())),
  });
  const Sale3 = await Sales.findOne({
    order: [['id', 'ASC']],
    offset: 3,
  });
  if (Sale3?.setUser) {
    await Sale3.setUser(relatedUser3);
  }

  const relatedUser4 = await Users.findOne({
    offset: Math.floor(Math.random() * (await Users.count())),
  });
  const Sale4 = await Sales.findOne({
    order: [['id', 'ASC']],
    offset: 4,
  });
  if (Sale4?.setUser) {
    await Sale4.setUser(relatedUser4);
  }
}

async function associateSaleWithProduct() {
  const relatedProduct0 = await Products.findOne({
    offset: Math.floor(Math.random() * (await Products.count())),
  });
  const Sale0 = await Sales.findOne({
    order: [['id', 'ASC']],
    offset: 0,
  });
  if (Sale0?.setProduct) {
    await Sale0.setProduct(relatedProduct0);
  }

  const relatedProduct1 = await Products.findOne({
    offset: Math.floor(Math.random() * (await Products.count())),
  });
  const Sale1 = await Sales.findOne({
    order: [['id', 'ASC']],
    offset: 1,
  });
  if (Sale1?.setProduct) {
    await Sale1.setProduct(relatedProduct1);
  }

  const relatedProduct2 = await Products.findOne({
    offset: Math.floor(Math.random() * (await Products.count())),
  });
  const Sale2 = await Sales.findOne({
    order: [['id', 'ASC']],
    offset: 2,
  });
  if (Sale2?.setProduct) {
    await Sale2.setProduct(relatedProduct2);
  }

  const relatedProduct3 = await Products.findOne({
    offset: Math.floor(Math.random() * (await Products.count())),
  });
  const Sale3 = await Sales.findOne({
    order: [['id', 'ASC']],
    offset: 3,
  });
  if (Sale3?.setProduct) {
    await Sale3.setProduct(relatedProduct3);
  }

  const relatedProduct4 = await Products.findOne({
    offset: Math.floor(Math.random() * (await Products.count())),
  });
  const Sale4 = await Sales.findOne({
    order: [['id', 'ASC']],
    offset: 4,
  });
  if (Sale4?.setProduct) {
    await Sale4.setProduct(relatedProduct4);
  }
}

async function associateSaleWithOrganization() {
  const relatedOrganization0 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const Sale0 = await Sales.findOne({
    order: [['id', 'ASC']],
    offset: 0,
  });
  if (Sale0?.setOrganization) {
    await Sale0.setOrganization(relatedOrganization0);
  }

  const relatedOrganization1 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const Sale1 = await Sales.findOne({
    order: [['id', 'ASC']],
    offset: 1,
  });
  if (Sale1?.setOrganization) {
    await Sale1.setOrganization(relatedOrganization1);
  }

  const relatedOrganization2 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const Sale2 = await Sales.findOne({
    order: [['id', 'ASC']],
    offset: 2,
  });
  if (Sale2?.setOrganization) {
    await Sale2.setOrganization(relatedOrganization2);
  }

  const relatedOrganization3 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const Sale3 = await Sales.findOne({
    order: [['id', 'ASC']],
    offset: 3,
  });
  if (Sale3?.setOrganization) {
    await Sale3.setOrganization(relatedOrganization3);
  }

  const relatedOrganization4 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const Sale4 = await Sales.findOne({
    order: [['id', 'ASC']],
    offset: 4,
  });
  if (Sale4?.setOrganization) {
    await Sale4.setOrganization(relatedOrganization4);
  }
}

async function associateUserMembershipWithUser() {
  const relatedUser0 = await Users.findOne({
    offset: Math.floor(Math.random() * (await Users.count())),
  });
  const UserMembership0 = await UserMemberships.findOne({
    order: [['id', 'ASC']],
    offset: 0,
  });
  if (UserMembership0?.setUser) {
    await UserMembership0.setUser(relatedUser0);
  }

  const relatedUser1 = await Users.findOne({
    offset: Math.floor(Math.random() * (await Users.count())),
  });
  const UserMembership1 = await UserMemberships.findOne({
    order: [['id', 'ASC']],
    offset: 1,
  });
  if (UserMembership1?.setUser) {
    await UserMembership1.setUser(relatedUser1);
  }

  const relatedUser2 = await Users.findOne({
    offset: Math.floor(Math.random() * (await Users.count())),
  });
  const UserMembership2 = await UserMemberships.findOne({
    order: [['id', 'ASC']],
    offset: 2,
  });
  if (UserMembership2?.setUser) {
    await UserMembership2.setUser(relatedUser2);
  }

  const relatedUser3 = await Users.findOne({
    offset: Math.floor(Math.random() * (await Users.count())),
  });
  const UserMembership3 = await UserMemberships.findOne({
    order: [['id', 'ASC']],
    offset: 3,
  });
  if (UserMembership3?.setUser) {
    await UserMembership3.setUser(relatedUser3);
  }

  const relatedUser4 = await Users.findOne({
    offset: Math.floor(Math.random() * (await Users.count())),
  });
  const UserMembership4 = await UserMemberships.findOne({
    order: [['id', 'ASC']],
    offset: 4,
  });
  if (UserMembership4?.setUser) {
    await UserMembership4.setUser(relatedUser4);
  }
}

async function associateUserMembershipWithMembership() {
  const relatedMembership0 = await Memberships.findOne({
    offset: Math.floor(Math.random() * (await Memberships.count())),
  });
  const UserMembership0 = await UserMemberships.findOne({
    order: [['id', 'ASC']],
    offset: 0,
  });
  if (UserMembership0?.setMembership) {
    await UserMembership0.setMembership(relatedMembership0);
  }

  const relatedMembership1 = await Memberships.findOne({
    offset: Math.floor(Math.random() * (await Memberships.count())),
  });
  const UserMembership1 = await UserMemberships.findOne({
    order: [['id', 'ASC']],
    offset: 1,
  });
  if (UserMembership1?.setMembership) {
    await UserMembership1.setMembership(relatedMembership1);
  }

  const relatedMembership2 = await Memberships.findOne({
    offset: Math.floor(Math.random() * (await Memberships.count())),
  });
  const UserMembership2 = await UserMemberships.findOne({
    order: [['id', 'ASC']],
    offset: 2,
  });
  if (UserMembership2?.setMembership) {
    await UserMembership2.setMembership(relatedMembership2);
  }

  const relatedMembership3 = await Memberships.findOne({
    offset: Math.floor(Math.random() * (await Memberships.count())),
  });
  const UserMembership3 = await UserMemberships.findOne({
    order: [['id', 'ASC']],
    offset: 3,
  });
  if (UserMembership3?.setMembership) {
    await UserMembership3.setMembership(relatedMembership3);
  }

  const relatedMembership4 = await Memberships.findOne({
    offset: Math.floor(Math.random() * (await Memberships.count())),
  });
  const UserMembership4 = await UserMemberships.findOne({
    order: [['id', 'ASC']],
    offset: 4,
  });
  if (UserMembership4?.setMembership) {
    await UserMembership4.setMembership(relatedMembership4);
  }
}

async function associateUserMembershipWithOrganization() {
  const relatedOrganization0 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const UserMembership0 = await UserMemberships.findOne({
    order: [['id', 'ASC']],
    offset: 0,
  });
  if (UserMembership0?.setOrganization) {
    await UserMembership0.setOrganization(relatedOrganization0);
  }

  const relatedOrganization1 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const UserMembership1 = await UserMemberships.findOne({
    order: [['id', 'ASC']],
    offset: 1,
  });
  if (UserMembership1?.setOrganization) {
    await UserMembership1.setOrganization(relatedOrganization1);
  }

  const relatedOrganization2 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const UserMembership2 = await UserMemberships.findOne({
    order: [['id', 'ASC']],
    offset: 2,
  });
  if (UserMembership2?.setOrganization) {
    await UserMembership2.setOrganization(relatedOrganization2);
  }

  const relatedOrganization3 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const UserMembership3 = await UserMemberships.findOne({
    order: [['id', 'ASC']],
    offset: 3,
  });
  if (UserMembership3?.setOrganization) {
    await UserMembership3.setOrganization(relatedOrganization3);
  }

  const relatedOrganization4 = await Organizations.findOne({
    offset: Math.floor(Math.random() * (await Organizations.count())),
  });
  const UserMembership4 = await UserMemberships.findOne({
    order: [['id', 'ASC']],
    offset: 4,
  });
  if (UserMembership4?.setOrganization) {
    await UserMembership4.setOrganization(relatedOrganization4);
  }
}

module.exports = {
  up: async (queryInterface, Sequelize) => {
    await ClassRegistrations.bulkCreate(ClassRegistrationsData);

    await Classes.bulkCreate(ClassesData);

    await Memberships.bulkCreate(MembershipsData);

    await Payments.bulkCreate(PaymentsData);

    await Products.bulkCreate(ProductsData);

    await Sales.bulkCreate(SalesData);

    await UserMemberships.bulkCreate(UserMembershipsData);

    await Organizations.bulkCreate(OrganizationsData);

    await Promise.all([
      // Similar logic for "relation_many"

      await associateUserWithOrganization(),

      await associateClassRegistrationWithUser(),

      await associateClassRegistrationWithOrganization(),

      await associateClassWithTrainer(),

      await associateClassWithOrganization(),

      await associateMembershipWithOrganization(),

      await associatePaymentWithUser(),

      await associatePaymentWithOrganization(),

      await associateProductWithOrganization(),

      await associateSaleWithUser(),

      await associateSaleWithProduct(),

      await associateSaleWithOrganization(),

      await associateUserMembershipWithUser(),

      await associateUserMembershipWithMembership(),

      await associateUserMembershipWithOrganization(),
    ]);
  },

  down: async (queryInterface, Sequelize) => {
    await queryInterface.bulkDelete('class_registrations', null, {});

    await queryInterface.bulkDelete('classes', null, {});

    await queryInterface.bulkDelete('memberships', null, {});

    await queryInterface.bulkDelete('payments', null, {});

    await queryInterface.bulkDelete('products', null, {});

    await queryInterface.bulkDelete('sales', null, {});

    await queryInterface.bulkDelete('user_memberships', null, {});

    await queryInterface.bulkDelete('organizations', null, {});
  },
};