jest.config.js

import nextJest from 'next/jest.js'

const createJestConfig = nextJest({
  // Provide the path to your Next.js app to load next.config.js and .env files in your test environment
  dir: './',
})

// Add any custom config to be passed to Jest
const customJestConfig = {
  setupFilesAfterEnv: ['<rootDir>/jest.setup.ts'],
  testEnvironment: 'jest-environment-jsdom',
  moduleNameMapper: {
    // Match tsconfig.json path aliases
    '^@/(.*)$': '<rootDir>/src/$1',
  },
  testMatch: [
    '<rootDir>/tests/**/*.test.ts',
    '<rootDir>/tests/**/*.test.tsx',
    '<rootDir>/**/__tests__/**/*.ts',
    '<rootDir>/**/__tests__/**/*.tsx',
  ],
  collectCoverageFrom: [
    'src/app/**/*.{js,jsx,ts,tsx}',
    'src/components/**/*.{js,jsx,ts,tsx}',
    'src/lib/**/*.{js,jsx,ts,tsx}',
    'src/hooks/**/*.{js,jsx,ts,tsx}',
    'src/services/**/*.{js,jsx,ts,tsx}',
    '!**/*.d.ts',
    '!**/node_modules/**',
    '!**/.next/**',
  ],
  moduleDirectories: ['node_modules', '<rootDir>/'],
  testPathIgnorePatterns: [
    '<rootDir>/.next/',
    '<rootDir>/node_modules/',
    '<rootDir>/tests/e2e/',
  ],
  transformIgnorePatterns: [
    'node_modules/(?!(nanoid|uuid)/)',
  ],
  // Ensure ts/tsx files use ts-jest
  moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json'],
}

// createJestConfig is exported this way to ensure that next/jest can load the Next.js config which is async
export default createJestConfig(customJestConfig)