/**
 * Payment test fixtures with randomized personal data
 */

import { faker } from '@faker-js/faker';
import type {
  ThreeDSInitializeRequest,
  Non3DPaymentRequest,
  PaymentCard,
  Buyer,
  BillingAddress,
  ShippingAddress,
  BasketItem,
} from '../../src/types';

/**
 * Generates a valid Turkish identity number (TC Kimlik No)
 * Uses a simple algorithm that produces valid-looking numbers
 */
function generateTurkishIdentityNumber(): string {
  const digits: number[] = [];

  // First digit cannot be 0
  digits.push(faker.number.int({ min: 1, max: 9 }));

  // Generate next 8 random digits
  for (let i = 1; i < 9; i++) {
    digits.push(faker.number.int({ min: 0, max: 9 }));
  }

  // Calculate 10th digit
  const oddSum = digits[0] + digits[2] + digits[4] + digits[6] + digits[8];
  const evenSum = digits[1] + digits[3] + digits[5] + digits[7];
  const digit10 = (oddSum * 7 - evenSum) % 10;
  digits.push(digit10 < 0 ? digit10 + 10 : digit10);

  // Calculate 11th digit
  const allSum = digits.reduce((sum, d) => sum + d, 0);
  digits.push(allSum % 10);

  return digits.join('');
}

/**
 * Generates a Turkish phone number in the format +905XXXXXXXXX
 */
function generateTurkishPhoneNumber(): string {
  const areaCode = faker.helpers.arrayElement(['530', '531', '532', '533', '534', '535', '536', '537', '538', '539', '540', '541', '542', '543', '544', '545', '546', '547', '548', '549', '550', '551', '552', '553', '554', '555', '556', '557', '558', '559']);
  const number = faker.string.numeric(7);
  return `+90${areaCode}${number}`;
}

/**
 * Generates a random IP address
 */
function generateIpAddress(): string {
  return faker.internet.ipv4();
}

/**
 * Generates a test payment card with randomized holder name
 * Card number is fixed to iyzico sandbox test card
 */
export function createTestCard(): PaymentCard {
  return {
    cardHolderName: faker.person.fullName(),
    cardNumber: '5528790000000008', // iyzico sandbox test card
    expireMonth: '12',
    expireYear: '2030',
    cvc: '123',
  };
}

/**
 * Generates a test buyer with randomized personal data
 */
export function createTestBuyer(): Buyer {
  const firstName = faker.person.firstName();
  const lastName = faker.person.lastName();

  return {
    id: `BY${faker.string.alphanumeric(6).toUpperCase()}`,
    name: firstName,
    surname: lastName,
    identityNumber: generateTurkishIdentityNumber(),
    email: faker.internet.email({ firstName, lastName }).toLowerCase(),
    gsmNumber: generateTurkishPhoneNumber(),
    registrationAddress: `${faker.location.streetAddress()}, ${faker.location.city()}`,
    city: faker.location.city(),
    country: 'Turkey',
    ip: generateIpAddress(),
    zipCode: faker.location.zipCode('#####'),
  };
}

/**
 * Generates a test billing address with randomized data
 */
export function createTestBillingAddress(): BillingAddress {
  return {
    contactName: faker.person.fullName(),
    city: faker.location.city(),
    country: 'Turkey',
    address: `${faker.location.streetAddress()}, ${faker.location.city()}`,
    zipCode: faker.location.zipCode('#####'),
  };
}

/**
 * Generates a test shipping address with randomized data
 */
export function createTestShippingAddress(): ShippingAddress {
  return {
    contactName: faker.person.fullName(),
    city: faker.location.city(),
    country: 'Turkey',
    address: `${faker.location.streetAddress()}, ${faker.location.city()}`,
    zipCode: faker.location.zipCode('#####'),
  };
}

/**
 * Generates test basket items
 */
export function createTestBasketItems(): BasketItem[] {
  return [
    {
      id: `BI${faker.string.alphanumeric(3).toUpperCase()}`,
      name: faker.commerce.productName(),
      category1: faker.commerce.department(),
      category2: faker.commerce.productAdjective(),
      itemType: 'PHYSICAL',
      price: 0.3,
    },
    {
      id: `BI${faker.string.alphanumeric(3).toUpperCase()}`,
      name: faker.commerce.productName(),
      category1: 'Game',
      category2: 'Online Game Items',
      itemType: 'VIRTUAL',
      price: 0.5,
    },
    {
      id: `BI${faker.string.alphanumeric(3).toUpperCase()}`,
      name: faker.commerce.productName(),
      category1: 'Electronics',
      category2: faker.commerce.productAdjective(),
      itemType: 'PHYSICAL',
      price: 0.2,
    },
  ];
}

/**
 * Generates a test 3DS initialize request with randomized data
 */
export function createTest3DSInitializeRequest(): ThreeDSInitializeRequest {
  return {
    locale: 'tr',
    conversationId: faker.string.uuid(),
    price: 1.0,
    paidPrice: 1.1,
    currency: 'TRY',
    installment: 1,
    paymentChannel: 'WEB',
    basketId: `B${faker.string.alphanumeric(5).toUpperCase()}`,
    paymentGroup: 'PRODUCT',
    callbackUrl: 'https://www.merchant.com/callback',
    paymentCard: createTestCard(),
    buyer: createTestBuyer(),
    billingAddress: createTestBillingAddress(),
    shippingAddress: createTestShippingAddress(),
    basketItems: createTestBasketItems(),
  };
}

/**
 * Generates a test non-3DS payment request with randomized data
 */
export function createTestNon3DPaymentRequest(): Non3DPaymentRequest {
  return {
    locale: 'tr',
    conversationId: faker.string.uuid(),
    price: 1.0,
    paidPrice: 1.1,
    currency: 'TRY',
    installment: 1,
    paymentChannel: 'WEB',
    basketId: `B${faker.string.alphanumeric(5).toUpperCase()}`,
    paymentGroup: 'PRODUCT',
    paymentCard: createTestCard(),
    buyer: createTestBuyer(),
    billingAddress: createTestBillingAddress(),
    shippingAddress: createTestShippingAddress(),
    basketItems: createTestBasketItems(),
  };
}

// Legacy exports for backward compatibility (static versions that generate once)
export const testCard = createTestCard();
export const testBuyer = createTestBuyer();
export const testBillingAddress = createTestBillingAddress();
export const testShippingAddress = createTestShippingAddress();
export const testBasketItems = createTestBasketItems();
export const test3DSInitializeRequest = createTest3DSInitializeRequest();
export const testNon3DPaymentRequest = createTestNon3DPaymentRequest();