import { fileURLToPath } from "node:url";
import react from "@vitejs/plugin-react";
import { defineConfig } from "vitest/config";

export default defineConfig({
  plugins: [react()],
  resolve: {
    // Resolves the "@/*" path alias from tsconfig.json.
    tsconfigPaths: true,
    alias: {
      // The real package throws unless bundled for React Server Components.
      "server-only": fileURLToPath(new URL("./test/server-only.ts", import.meta.url)),
    },
  },
  test: {
    // Server code runs in Node; component tests opt in with `// @vitest-environment jsdom`.
    environment: "node",
    include: ["src/**/*.test.{ts,tsx}", "scripts/**/*.test.ts", "cli/**/*.test.ts"],
    restoreMocks: true,
    unstubEnvs: true,
    coverage: {
      provider: "v8",
      include: ["src/**/*.{ts,tsx}"],
      exclude: [
        "src/**/*.test.{ts,tsx}",
        "src/**/*.d.ts",
        // Async Server Component: unit runners can't render it (Next docs, testing/vitest.md).
        "src/app/page.tsx",
      ],
      reporter: ["text", "json-summary"],
      // vrek principle pri-be2smzk: `npm run coverage` fails if line coverage drops below 95%.
      thresholds: { lines: 95 },
    },
  },
});