#!/usr/bin/env node
/**
 * Build the Fabric web frontend with a relative asset base and copy the
 * static bundle into Fabric.Desktop/renderer/ so the packaged Electron app
 * is self-contained (loaded via file://, no separate web server needed).
 *
 * Fabric.Frontend is the sibling submodule under the parent Fabric repo.
 */
import { execSync } from 'node:child_process'
import fs from 'node:fs'
import path from 'node:path'
import { fileURLToPath } from 'node:url'

const __dirname = path.dirname(fileURLToPath(import.meta.url))
const DESKTOP = path.resolve(__dirname, '..')
const FRONTEND = path.resolve(DESKTOP, '..', 'Fabric.Frontend')
const SRC = path.join(FRONTEND, 'dist-desktop')
const DEST = path.join(DESKTOP, 'renderer')

if (!fs.existsSync(FRONTEND)) {
  console.error(`[build-renderer] Fabric.Frontend not found at ${FRONTEND}`)
  process.exit(1)
}

console.log('[build-renderer] building frontend (relative base)…')
execSync('npm install --no-audit --no-fund', { cwd: FRONTEND, stdio: 'inherit' })
execSync('npm run build:desktop', { cwd: FRONTEND, stdio: 'inherit' })

if (!fs.existsSync(path.join(SRC, 'index.html'))) {
  console.error(`[build-renderer] expected ${SRC}/index.html after build`)
  process.exit(1)
}

fs.rmSync(DEST, { recursive: true, force: true })
fs.cpSync(SRC, DEST, { recursive: true })
console.log(`[build-renderer] copied ${SRC} -> ${DEST}`)