import { configDefaults, defineConfig } from "vitest/config";

// Tests must not inherit a caller's production React/runtime selection.
// Package scripts also launch Vitest through scripts/run-vitest.ts, which owns
// NODE_ENV before the Vitest process starts. Keeping the config deterministic
// protects direct `vitest` invocations as well.
process.env.NODE_ENV = "test";

export default defineConfig({
  test: {
    globals: false,
    setupFiles: ["./tests/setup.ts"],
    restoreMocks: true,
    clearMocks: true,
    mockReset: true,
    testTimeout: 10_000,
    exclude: [
      ...configDefaults.exclude,
      ".tmp/**",
      // A git worktree inside the repository is a different checkout of a
      // different branch. Running its tests against this checkout's config
      // reports failures that belong to neither.
      ".worktrees/**",
      "tests/fixtures/v8-coverage-counter-semantics/**",
    ],
    coverage: {
      provider: "v8",
      reportsDirectory: "artifacts/tests/coverage",
      reporter: ["text", "json-summary", "lcov"],
      include: ["src/**/*.{ts,tsx}"],
      exclude: ["**/*.d.ts", "**/*.stories.*"],
    },
  },
});