import { defineConfig } from 'vitest/config';

// Under CI the job-level env already sets DB_NAME=familysync and DB_HOST=mariadb
// (the ephemeral service container). Do not override those — CI provisions and
// migrates its own DB via the db:migrate step (T-ndv-04).
// Locally, force workers to connect to the isolated test DB so the dev
// `familysync` DB is never mutated by the test suite (T-ndv-02).
const isCI = !!process.env.CI;

export default defineConfig({
  test: {
    environment: 'node',
    globals: true,
    globalSetup: ['./test/global-setup.ts'],
    setupFiles: ['./test/setup.ts'],
    // Disable parallel file execution so concurrent DB tests do not interfere
    // via the shared MariaDB. The global afterEach in test/setup.ts truncates
    // list tables; running test files in parallel causes FK violations when one
    // file's afterEach deletes rows that another file's test is still using.
    fileParallelism: false,
    env: {
      // OIDC discovery config — supplied so oidcConfigFallbackMiddleware
      // (src/auth/middleware.ts) always takes its env path and never reads
      // app_config on every /api/* request. Without these, the middleware hits
      // the DB, which 500s any test file that mocks `db` with a partial query
      // chain (e.g. events/login). CI's api job provides no OIDC env, so this
      // also makes the suite hermetic rather than depending on a local .env.
      // Dummy values are safe: tests exercising the real OIDC flow mock
      // @hono/oidc-auth directly.
      OIDC_ISSUER: 'https://auth.test.local',
      OIDC_CLIENT_ID: 'familysync-test',
      OIDC_AUTH_EXTERNAL_URL: 'https://familysync.test.local',
      // Local: force the isolated test DB so the dev `familysync` DB is never
      // mutated. Under CI the job-level env already sets DB_NAME=familysync and
      // DB_HOST=mariadb — do not override those.
      ...(isCI
        ? {}
        : {
            DB_NAME: 'familysync_test',
            DB_HOST: process.env.DB_HOST ?? '127.0.0.1',
          }),
    },
  },
});