Changing Room Counter

Offline-first Flutter app for counting changing room customers at an event.

The app tracks four categories:

• Male Cash
• Male QRIS
• Female Cash
• Female QRIS

Each tap creates an individual timestamped record saved on the device. Pending records can be uploaded later to Google Sheets through a preconfigured Google Apps Script web app URL.

Google Sheets upload setup

1. Create and deploy the Apps Script endpoint from docs/google_apps_script.md.

2. Copy .env.example to .env and put the deployed web app URL there.

3. Build the Android APK with the URL injected at compile time:

   flutter build apk --release --dart-define-from-file=.env

lib/app_config.dart reads the URL from GOOGLE_APPS_SCRIPT_WEB_APP_URL, so the private Apps Script URL does not need to be committed to Git.

Successful uploads are marked locally and will not be uploaded again. Voided records remain visible in history but are excluded from totals and upload payloads.