import { fileURLToPath } from "node:url";

import { defineConfig } from "vitest/config";
import react from "@vitejs/plugin-react";

// The binder splits into a pure headless core (bindings, active-state reducer,
// rect-registry) that is node-safe, and a React surface (provider, form
// renderer, overlay, registry hooks) exercised in a DOM. Tests whose filename
// ends in `.dom.test.{ts,tsx}` run under happy-dom; everything else runs in
// Node, which is faster. The react plugin lets the `.tsx` sources compile.
//
// The one runtime dependency, `@citation-evidence/engine`, resolves through its
// package `exports` map (`.` and `./shared`) via the sibling-checkout link. The
// engine ships raw TypeScript that uses its own `@shared/*` / `@engine/*` path
// aliases internally; tsc honours those via tsconfig `paths`, but Vite does
// not read tsconfig, so we mirror them here as resolve aliases. Nothing in this
// package imports `citation-evidence` internals — the aliases only exist so the
// linked engine source resolves.
const enginePath = (rel: string) =>
  fileURLToPath(new URL(`../citation-engine/src/${rel}`, import.meta.url));

export default defineConfig({
  plugins: [react()],
  resolve: {
    alias: [
      { find: /^@shared\//, replacement: `${enginePath("shared")}/` },
      { find: /^@engine\//, replacement: `${enginePath("engine")}/` },
    ],
  },
  test: {
    environmentMatchGlobs: [["**/*.dom.test.{ts,tsx}", "happy-dom"]],
    globals: false,
  },
});