// vitest.config.integration.ts
import { defineConfig, mergeConfig } from 'vitest/config';
import viteConfig from './vite.config';

/**
 * This configuration is specifically for integration tests.
 * It MERGES with the main vite.config.ts to inherit plugins and aliases,
 * then overrides the test-specific settings for a Node.js environment.
 */
export default mergeConfig(viteConfig, defineConfig({
  test: {
    // Override settings from the main config for this specific test project.
    name: 'integration',
    environment: 'node',
    // The path must be specific. By default, Vitest doesn't look in `src`
    // unless the pattern explicitly includes it.
    include: ['src/**/*.integration.test.ts'],
    // CRITICAL: We must override the `exclude` property from the base vite.config.ts.
    // Otherwise, the inherited `exclude` rule will prevent any integration tests from running.
    // Setting it to an empty array removes all exclusion rules for this project.
    exclude: [],
    // This setup script starts the backend server before tests run.
    globalSetup: './src/tests/setup/integration-global-setup.ts',
    testTimeout: 15000, // Increased timeout for server startup and API calls.
    // "singleThread: true" is removed in modern Vitest.
    // Use fileParallelism: false to ensure test files run one by one to prevent port conflicts.
    fileParallelism: false,
    coverage: {
      provider: 'v8',
      // We remove 'text' here. The final text report will be generated by `nyc` after merging.
      reporter: ['html', 'json-summary', 'json'],
      reportsDirectory: '.coverage/integration',
      clean: true,
    },
  }
}));