const nextJest = require('next/jest');

/** @type {import('jest').Config} */
const createJestConfig = nextJest({
  // Provide the path to your Next.js app to load next.config.js and .env files
  dir: './',
});

// Add any custom config to be passed to Jest
const config = {
  coverageProvider: 'v8',
  testEnvironment: 'jsdom',
  
  // Setup files to run before each test
  setupFilesAfterEnv: ['<rootDir>/jest.setup.js'],
  
  // Test file patterns
  testMatch: [
    '**/__tests__/**/*.(ts|tsx|js)',
    '**/*.(test|spec).(ts|tsx|js)'
  ],
  
  // Module name mapping for absolute imports (correct property name)
  moduleNameMapper: {
    '^@/(.*)$': '<rootDir>/$1',
  },
  
  // Coverage settings
  collectCoverageFrom: [
    'app/**/*.{ts,tsx}',
    'components/**/*.{ts,tsx}', 
    'lib/**/*.{ts,tsx}',
    '!**/*.d.ts',
    '!**/node_modules/**',
    '!**/.next/**',
    '!**/coverage/**',
  ],
  
  // Coverage thresholds
  coverageThreshold: {
    global: {
      branches: 70,
      functions: 70,
      lines: 70,
      statements: 70,
    },
  },
};

// createJestConfig is exported this way to ensure that next/jest can load the Next.js config which is async
module.exports = createJestConfig(config);