/**
 * Helper for creating mock MailGun webhook events for testing
 */

import {
  MailgunWebhookEvent,
  MailgunDeliveredEvent,
  MailgunFailedEvent,
  MailgunOpenedEvent,
  MailgunClickedEvent,
  MailgunBouncedEvent,
  MailgunComplainedEvent,
  MailgunUnsubscribedEvent
} from '../../src/types/MailgunWebhookEvent';

/**
 * Base event data common to all webhook events
 */
const baseEventData = {
  timestamp: '1234567890',
  token: 'mock-token-123',
  signature: 'mock-signature-abc123',
  recipient: 'user@example.com',
  domain: 'mail.example.com',
  'message-id': '<20240101120000.1.ABC123@mail.example.com>',
  'Message-Id': '<20240101120000.1.ABC123@mail.example.com>'
};

/**
 * Creates a mock 'delivered' event
 */
export const createMockDeliveredEvent = (): MailgunDeliveredEvent => ({
  ...baseEventData,
  event: 'delivered',
  'message-headers': JSON.stringify([
    ['Subject', 'Test Email'],
    ['From', 'sender@example.com']
  ])
});

/**
 * Creates a mock 'failed' event
 */
export const createMockFailedEvent = (): MailgunFailedEvent => ({
  ...baseEventData,
  event: 'failed',
  severity: 'permanent',
  reason: 'bounce',
  notification: 'User inbox is full'
});

/**
 * Creates a mock 'opened' event
 */
export const createMockOpenedEvent = (): MailgunOpenedEvent => ({
  ...baseEventData,
  event: 'opened',
  city: 'San Francisco',
  country: 'US',
  'device-type': 'desktop',
  'client-os': 'macOS',
  'client-name': 'Apple Mail',
  ip: '192.168.1.100'
});

/**
 * Creates a mock 'clicked' event
 */
export const createMockClickedEvent = (): MailgunClickedEvent => ({
  ...baseEventData,
  event: 'clicked',
  url: 'https://example.com/link',
  city: 'New York',
  country: 'US',
  'device-type': 'mobile',
  'client-os': 'iOS',
  'client-name': 'Gmail',
  ip: '192.168.1.101'
});

/**
 * Creates a mock 'bounced' event
 */
export const createMockBouncedEvent = (): MailgunBouncedEvent => ({
  ...baseEventData,
  event: 'bounced',
  code: '550',
  error: 'User not found',
  notification: 'The email account that you tried to reach does not exist'
});

/**
 * Creates a mock 'complained' event
 */
export const createMockComplainedEvent = (): MailgunComplainedEvent => ({
  ...baseEventData,
  event: 'complained'
});

/**
 * Creates a mock 'unsubscribed' event
 */
export const createMockUnsubscribedEvent = (): MailgunUnsubscribedEvent => ({
  ...baseEventData,
  event: 'unsubscribed'
});

/**
 * Creates an invalid event missing required fields
 */
export const createInvalidEvent = () => ({
  timestamp: '1234567890',
  token: 'mock-token-123'
  // Missing 'event' and 'recipient' fields
});