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test/README.md

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+# Ontime Merchant (id.ontime.merchant)
+
+Small Android app: Firebase Auth (phone OTP and email/password), FCM, and request/response logging.
+
+## Setup
+
+1. **Open in Android Studio** (or ensure JDK 17+ and Android SDK are installed).
+2. **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`).
+3. **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.):
+   ```json
+   "merchant_messages": {
+     "$uid": {
+       ".read": "auth != null",
+       ".write": "auth != null"
+     }
+   }
+   ```
+   - Example merged rules (yours may differ):
+   ```json
+   {
+     "rules": {
+       "customer_messages": { ... },
+       "driver_messages": { ... },
+       "merchant_messages": {
+         "$uid": {
+           ".read": "auth != null",
+           ".write": "auth != null"
+         }
+       }
+     }
+   }
+   ```
+   Then click **Publish**. See `database.rules.merge-only.txt` for the fragment only.
+4. Build and run: **Run → Run 'app'** or `./gradlew assembleDebug` (with Java and Android SDK on PATH).
+
+## Credentials
+
+- **Phone:** 62811936767 (for OTP: use with country code, e.g. +62811936767; for email login: `62811936767@merchant.ontime.id`)
+- **Password:** 123456 (email/password only)
+
+## Screens
+
+- **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).
+
+## Project layout
+
+- `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`).