/**
 * expo-sqlite copies vendor/sqlite3/*.c into ios/ during `pod install` (see ExpoSQLite.podspec).
 * After a fresh `npm install`, Xcode can fail with missing sqlite3.c until pods run.
 * This script mirrors that copy so native builds work without an extra manual step.
 */
const fs = require('fs');
const path = require('path');

const appRoot = path.join(__dirname, '..');
const pkgRoot = path.join(appRoot, 'node_modules', 'expo-sqlite');

function readUseLibSQL() {
  const propsPath = path.join(appRoot, 'ios', 'Podfile.properties.json');
  if (!fs.existsSync(propsPath)) {
    return false;
  }
  try {
    const props = JSON.parse(fs.readFileSync(propsPath, 'utf8'));
    return props['expo.sqlite.useLibSQL'] === 'true';
  } catch {
    return false;
  }
}

function main() {
  if (!fs.existsSync(pkgRoot)) {
    return;
  }
  if (readUseLibSQL()) {
    return;
  }

  const vendorDir = path.join(pkgRoot, 'vendor', 'sqlite3');
  const iosDir = path.join(pkgRoot, 'ios');
  for (const file of ['sqlite3.c', 'sqlite3.h']) {
    const src = path.join(vendorDir, file);
    const dest = path.join(iosDir, file);
    if (!fs.existsSync(src)) {
      console.warn(`[ensure-expo-sqlite-ios] missing vendor file: ${src}`);
      continue;
    }
    if (fs.existsSync(dest)) {
      continue;
    }
    fs.mkdirSync(iosDir, { recursive: true });
    fs.copyFileSync(src, dest);
    console.log(`[ensure-expo-sqlite-ios] copied ${file} -> ios/`);
  }
}

main();