Ontime Merchant (id.ontime.merchant)

Small Android app: Firebase Auth (phone OTP and email/password), FCM, and request/response logging.

Setup

Open in Android Studio (or ensure JDK 17+ and Android SDK are installed).
Firebase Console (project ngojol-trial):
- Enable Authentication → Sign-in method → Email/Password (for email login).
- Enable Authentication → Sign-in method → Phone (for phone OTP login). Add your app’s SHA-1 in Project settings if you use phone auth (e.g. from keytool -list -v -keystore app/ontimekeystore.jks).
Realtime Database (required for Send message): This app uses the same Firebase project as other apps. Add only the merchant_messages rules; do not replace your existing rules.
- In Firebase Console → Realtime Database → Rules, open your current rules.
- Inside the "rules" object, add the block below (keep any existing keys like customer_messages, driver_messages, etc.):
```
"merchant_messages": {
  "$uid": {
    ".read": "auth != null",
    ".write": "auth != null"
  }
}
```
- Example merged rules (yours may differ):
```
{
  "rules": {
    "customer_messages": { ... },
    "driver_messages": { ... },
    "merchant_messages": {
      "$uid": {
        ".read": "auth != null",
        ".write": "auth != null"
      }
    }
  }
}
```
Then click Publish. See database.rules.merge-only.txt for the fragment only.
Build and run: Run → Run 'app' or ./gradlew assembleDebug (with Java and Android SDK on PATH).

Phone: 62811936767 (for OTP: use with country code, e.g. +62811936767; for email login: 62811936767@merchant.ontime.id)
Password: 123456 (email/password only)

Login – Two options: (1) Login with phone (OTP): enter phone, tap Send OTP, enter SMS code, tap Verify; (2) Login with email/password: enter phone + password, Login or Register. Shows login token and request message in text fields.
Home – Launcher to Send message, Receipt message, Request & Response log; shows FCM token.
Send message – Type message, send to Firebase Realtime Database; sent payload/request shown in text.
Receipt message – Received FCM messages in text form.
Request & Response log – Text log of recent requests and responses (Auth, RTDB, FCM).

app/build.gradle – App config, package id.ontime.merchant, signing with ontimekeystore.jks.
app/google-services.json – Firebase config (unchanged).
app/ontimekeystore.jks – Debug/release signing (store/key password: 123456@ontime, alias: ontimekeystore).