/**
 * Jest Base Configuration
 * Shared across all TypeScript projects
 *
 * Usage in project:
 * ```js
 * // jest.config.js
 * const baseConfig = require('../../../devtools/configs/jest.config.base.js');
 * module.exports = {
 *   ...baseConfig,
 *   roots: ['<rootDir>/src'],
 * };
 * ```
 */

module.exports = {
  // TypeScript support
  preset: 'ts-jest',
  testEnvironment: 'node',

  // Test patterns
  testMatch: [
    '**/__tests__/**/*.ts',
    '**/*.spec.ts',
    '**/*.test.ts',
  ],

  // Module resolution
  moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json', 'node'],

  // Path aliases (override in project config)
  moduleNameMapper: {
    '^@/(.*)$': '<rootDir>/src/$1',
    '^@modules/(.*)$': '<rootDir>/src/modules/$1',
    '^@shared/(.*)$': '<rootDir>/src/shared/$1',
    '^@config/(.*)$': '<rootDir>/src/config/$1',
  },

  // Coverage
  collectCoverageFrom: [
    'src/**/*.ts',
    '!src/**/*.d.ts',
    '!src/**/*.spec.ts',
    '!src/**/*.test.ts',
    '!src/**/index.ts',
    '!src/main.ts',
  ],
  coverageDirectory: 'coverage',
  coverageReporters: ['text', 'lcov', 'html'],
  coverageThreshold: {
    global: {
      branches: 70,
      functions: 70,
      lines: 70,
      statements: 70,
    },
  },

  // Transform
  transform: {
    '^.+\\.tsx?$': ['ts-jest', {
      tsconfig: 'tsconfig.json',
    }],
  },

  // Setup
  setupFilesAfterEnv: [],

  // Timeouts
  testTimeout: 10000,

  // Clear mocks between tests
  clearMocks: true,
  restoreMocks: true,

  // Verbose output
  verbose: true,

  // Ignore patterns
  testPathIgnorePatterns: [
    '/node_modules/',
    '/dist/',
    '/build/',
  ],
  transformIgnorePatterns: [
    '/node_modules/',
  ],
};