import { defineConfig } from "vitest/config";

export default defineConfig({
  resolve: { tsconfigPaths: true },
  test: {
    environment: "node",
    globals: false,
    // Loads .env before any test file's imports run. Several modules under
    // test (e.g. @/lib/auth/permissions -> @/lib/db/prisma) build the
    // database connection at import time, so a test that imports one of
    // them before fixtures.ts (which also loads dotenv) used to die with
    // "Database connection is not configured" — a pure import-order
    // accident, not a real failure.
    setupFiles: ["dotenv/config"],
    // E2E_TEST_MODE switches off the OTP rate limits (see otp.service.ts)
    // for Playwright. Integration tests assert those limits exist, so pin it
    // off here even if the surrounding environment/.env has it on — dotenv
    // never overrides a variable that's already set.
    env: { E2E_TEST_MODE: "false" },
    include: ["**/*.integration.test.ts"],
    // "**/node_modules/**" (not "node_modules/**") — see vitest.config.mts's
    // own comment for why this matters once a nested node_modules
    // (manager/node_modules) exists in the repo.
    exclude: ["**/node_modules/**", ".next/**", "templates/**", "manager/**"],
    // Concurrency tests (double-booking prevention) need real, unshared
    // DB connections and predictable ordering — run integration test
    // files one at a time.
    fileParallelism: false,
    testTimeout: 20000,
  },
});