// canvaskit and onnxruntime resolve their wasm at runtime, not through the
// bundler, so the binaries have to be served assets. 20MB of wasm in the repo is
// worse than 20MB copied out of node_modules at build time (the Docker build
// stage does the same).
import { copyFileSync, mkdirSync, existsSync } from 'node:fs';
import { dirname } from 'node:path';

const copies = [
  ['node_modules/canvaskit-wasm/bin/full/canvaskit.wasm', 'public/wasm/canvaskit.wasm'],
  // onnxruntime-web's default entry (its own bundled glue) looks for the jsep
  // build of the runtime in `env.wasm.wasmPaths`; that build carries both the
  // WebGPU and the plain WebAssembly execution provider, so one file is enough.
  [
    'node_modules/onnxruntime-web/dist/ort-wasm-simd-threaded.jsep.wasm',
    'public/wasm/ort/ort-wasm-simd-threaded.jsep.wasm',
  ],
  [
    'node_modules/onnxruntime-web/dist/ort-wasm-simd-threaded.jsep.mjs',
    'public/wasm/ort/ort-wasm-simd-threaded.jsep.mjs',
  ],
];

for (const [from, to] of copies) {
  if (!existsSync(from)) {
    console.error(`missing ${from} — run npm install first`);
    process.exit(1);
  }
  mkdirSync(dirname(to), { recursive: true });
  copyFileSync(from, to);
  console.log(`copied ${from} -> ${to}`);
}