Initial commit

Android app works, but Android says it uses much more battery than
ntfy.sh, which should never happen
goimapnotify works
Logo is awesome <3
There are problems with constant working, presumably after restarts.

6 files changed, 362 insertions, 0 deletions

diff --git a/android/app/src/main/java/eu/jopek/dingdongmail/MainActivity.kt b/android/app/src/main/java/eu/jopek/dingdongmail/MainActivity.kt
new file mode 100644
index 0000000..a13b0d2
--- /dev/null
+++ b/android/app/src/main/java/eu/jopek/dingdongmail/MainActivity.kt
@@ -0,0 +1,74 @@
+package eu.jopek.dingdongmail
+
+import android.content.Intent
+import android.os.Bundle
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.activity.enableEdgeToEdge
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.Button
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.tooling.preview.Preview
+import eu.jopek.dingdongmail.ui.theme.DingDongMailTheme
+
+class MainActivity : ComponentActivity() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        enableEdgeToEdge()
+        setContent {
+            DingDongMailTheme {
+                Scaffold(modifier = Modifier.fillMaxSize()) { innerPadding ->
+                    Greeting(
+                        modifier = Modifier.padding(innerPadding)
+                    ) {
+                        actionOnService(it)
+                    }
+                }
+            }
+        }
+
+        log("Starting the service from MainActivity.onCreate")
+        Intent(this, MainWorkerService::class.java).also {
+            it.action = Actions.START.name
+            startForegroundService(it)
+        }
+    }
+
+    private fun actionOnService(action: Actions) {
+        log("Starting the service from button")
+        Intent(this, MainWorkerService::class.java).also {
+            it.action = action.name
+            if (action == Actions.STOP) stopService(it)
+            else startForegroundService(it)
+        }
+    }
+}
+
+@Composable
+fun Greeting(modifier: Modifier = Modifier, onClick: (Actions) -> Unit) {
+    Column {
+        Text(
+            text = "Ding-Dong Mail!",
+            modifier = modifier
+        )
+        Button(onClick = { onClick(Actions.START) }) {
+            Text(text = "Start")
+        }
+        Button(onClick = { onClick(Actions.STOP) }) {
+            Text(text = "Stop")
+        }
+    }
+}
+
+@Preview(showBackground = true)
+@Composable
+fun GreetingPreview() {
+    DingDongMailTheme {
+        Greeting() {}
+    }
+}
\ No newline at end of file
diff --git a/android/app/src/main/java/eu/jopek/dingdongmail/MainWorkerService.kt b/android/app/src/main/java/eu/jopek/dingdongmail/MainWorkerService.kt
new file mode 100644
index 0000000..4991c3a
--- /dev/null
+++ b/android/app/src/main/java/eu/jopek/dingdongmail/MainWorkerService.kt
@@ -0,0 +1,169 @@
+package eu.jopek.dingdongmail
+
+import android.app.Notification
+import android.app.NotificationChannel
+import android.app.NotificationManager
+import android.app.PendingIntent
+import android.app.Service
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import android.content.IntentFilter
+import android.content.pm.ApplicationInfo
+import android.content.pm.ServiceInfo
+import android.graphics.BitmapFactory
+import android.graphics.Color
+import android.os.Build
+import android.os.IBinder
+import android.os.PowerManager
+import android.util.Log
+import android.widget.Toast
+import eu.jopek.dingdongmail.ui.theme.DingDongMailTheme
+
+fun log(str: String) {
+    if (BuildConfig.DEBUG) {
+        Log.d("Ding-Dong Mail", str)
+    }
+}
+
+enum class Actions {
+    START,
+    STOP
+}
+
+class MainWorkerService : Service() {
+    private var wakeLock: PowerManager.WakeLock? = null
+    private var isServiceStarted = false
+
+    override fun onBind(intent: Intent): IBinder? {
+        log("Some component want to bind with the service")
+        // We don't provide binding, so return null
+        return null
+    }
+
+    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
+        if (intent != null) {
+            val action = intent.action
+            log("using an intent with action $action")
+            when (action) {
+                Actions.START.name -> startService()
+                Actions.STOP.name -> stopService()
+                else -> log("This should never happen. No action in the received intent")
+            }
+        } else {
+            log("with a null intent. It has been probably restarted by the system.")
+        }
+        // by returning this we make sure the service is restarted if the system kills the service
+        return START_STICKY
+    }
+
+    override fun onCreate() {
+        super.onCreate()
+        log("The service has been created")
+        val notification = createNotification()
+        startForeground(ServiceInfo.FOREGROUND_SERVICE_TYPE_SPECIAL_USE, notification)
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        log("The service has been destroyed")
+        Toast.makeText(this, "Service destroyed", Toast.LENGTH_SHORT).show()
+    }
+
+    private fun startService() {
+        if (isServiceStarted) return
+        log("Starting the foreground service task")
+        Toast.makeText(this, "Service starting its task", Toast.LENGTH_SHORT).show()
+        isServiceStarted = true
+
+        // we need this lock so our service gets not affected by Doze Mode
+        wakeLock =
+            (getSystemService(Context.POWER_SERVICE) as PowerManager).run {
+                newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "DingDongMail::lock").apply {
+                    acquire()
+                }
+            }
+
+        val i = Intent("eu.faircode.email.DISABLE").apply {
+            setPackage("eu.faircode.email")
+        }
+        startService(i)
+        val intentFilter = IntentFilter("io.heckel.ntfy.MESSAGE_RECEIVED")
+        registerReceiver(receiver, intentFilter, RECEIVER_EXPORTED)
+    }
+
+    private val receiver: BroadcastReceiver = object : BroadcastReceiver() {
+        override fun onReceive(context: Context, intent: Intent) {
+            val msg = intent.getStringExtra("message") ?: return
+            val (email, _mailbox) = msg.split(":", ignoreCase = false, limit = 2)
+            log("email: $email")
+            val i = Intent("eu.faircode.email.POLL").apply {
+                setPackage("eu.faircode.email")
+                putExtra("account", email)
+            }
+            startService(i)
+        }
+    }
+
+    private fun stopService() {
+        log("Stopping the foreground service")
+        Toast.makeText(this, "Service stopping", Toast.LENGTH_SHORT).show()
+        val i = Intent("eu.faircode.email.ENABLE").apply {
+            setPackage("eu.faircode.email")
+        }
+        startService(i)
+        wakeLock?.let {
+            if (it.isHeld) {
+                it.release()
+            }
+        }
+        stopSelf()
+        unregisterReceiver(receiver)
+        isServiceStarted = false
+    }
+
+    private fun createNotification(): Notification {
+        val notificationChannelId = "DING-DONG MAIL - FOREGROUND SERVICE"
+
+        val notificationManager =
+            getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
+        val channel = NotificationChannel(
+            notificationChannelId,
+            "Foreground service",
+            NotificationManager.IMPORTANCE_MIN
+        ).let {
+            it.description = "Foreground service"
+            it.enableLights(true)
+            it.lightColor = Color.RED
+            it.enableVibration(true)
+            it.vibrationPattern = longArrayOf(100, 200, 300, 400, 500, 400, 300, 200, 400)
+            it
+        }
+        notificationManager.createNotificationChannel(channel)
+
+        val pendingIntent: PendingIntent =
+            Intent(this, MainActivity::class.java).let { notificationIntent ->
+                PendingIntent.getActivity(this, 0, notificationIntent, PendingIntent.FLAG_IMMUTABLE)
+            }
+
+        val builder: Notification.Builder =
+            Notification.Builder(
+                this,
+                notificationChannelId
+            )
+
+        return builder
+            .setContentTitle("Ding-Dong Mail - Foreground Service")
+            .setContentText("This makes Ding-Dong Mail works so good")
+            .setContentIntent(pendingIntent)
+            .setSmallIcon(R.drawable.notification)
+            .setColor(resources.getColor(R.color.notification_bg, theme))
+            .setLargeIcon(
+                BitmapFactory.decodeResource(
+                    applicationContext.resources,
+                    R.mipmap.logo
+                )
+            )
+            .build()
+    }
+}
\ No newline at end of file
diff --git a/android/app/src/main/java/eu/jopek/dingdongmail/StartReceiver.kt b/android/app/src/main/java/eu/jopek/dingdongmail/StartReceiver.kt
new file mode 100644
index 0000000..e5fad0b
--- /dev/null
+++ b/android/app/src/main/java/eu/jopek/dingdongmail/StartReceiver.kt
@@ -0,0 +1,16 @@
+package eu.jopek.dingdongmail
+
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+
+class StartReceiver: BroadcastReceiver() {
+    override fun onReceive(context: Context, intent: Intent) {
+        log("Starting the service from a StartReceiver")
+        Intent(context, MainWorkerService::class.java).also {
+           it.action = Actions.START.name
+           context.startForegroundService(it)
+        }
+    }
+
+}
\ No newline at end of file
diff --git a/android/app/src/main/java/eu/jopek/dingdongmail/ui/theme/Color.kt b/android/app/src/main/java/eu/jopek/dingdongmail/ui/theme/Color.kt
new file mode 100644
index 0000000..fdb4075
--- /dev/null
+++ b/android/app/src/main/java/eu/jopek/dingdongmail/ui/theme/Color.kt
@@ -0,0 +1,11 @@
+package eu.jopek.dingdongmail.ui.theme
+
+import androidx.compose.ui.graphics.Color
+
+val Purple80 = Color(0xFFD0BCFF)
+val PurpleGrey80 = Color(0xFFCCC2DC)
+val Pink80 = Color(0xFFEFB8C8)
+
+val Purple40 = Color(0xFF6650a4)
+val PurpleGrey40 = Color(0xFF625b71)
+val Pink40 = Color(0xFF7D5260)
\ No newline at end of file
diff --git a/android/app/src/main/java/eu/jopek/dingdongmail/ui/theme/Theme.kt b/android/app/src/main/java/eu/jopek/dingdongmail/ui/theme/Theme.kt
new file mode 100644
index 0000000..444f356
--- /dev/null
+++ b/android/app/src/main/java/eu/jopek/dingdongmail/ui/theme/Theme.kt
@@ -0,0 +1,58 @@
+package eu.jopek.dingdongmail.ui.theme
+
+import android.app.Activity
+import android.os.Build
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.darkColorScheme
+import androidx.compose.material3.dynamicDarkColorScheme
+import androidx.compose.material3.dynamicLightColorScheme
+import androidx.compose.material3.lightColorScheme
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.platform.LocalContext
+
+private val DarkColorScheme = darkColorScheme(
+    primary = Purple80,
+    secondary = PurpleGrey80,
+    tertiary = Pink80
+)
+
+private val LightColorScheme = lightColorScheme(
+    primary = Purple40,
+    secondary = PurpleGrey40,
+    tertiary = Pink40
+
+    /* Other default colors to override
+    background = Color(0xFFFFFBFE),
+    surface = Color(0xFFFFFBFE),
+    onPrimary = Color.White,
+    onSecondary = Color.White,
+    onTertiary = Color.White,
+    onBackground = Color(0xFF1C1B1F),
+    onSurface = Color(0xFF1C1B1F),
+    */
+)
+
+@Composable
+fun DingDongMailTheme(
+    darkTheme: Boolean = isSystemInDarkTheme(),
+    // Dynamic color is available on Android 12+
+    dynamicColor: Boolean = true,
+    content: @Composable () -> Unit
+) {
+    val colorScheme = when {
+        dynamicColor && Build.VERSION.SDK_INT >= Build.VERSION_CODES.S -> {
+            val context = LocalContext.current
+            if (darkTheme) dynamicDarkColorScheme(context) else dynamicLightColorScheme(context)
+        }
+
+        darkTheme -> DarkColorScheme
+        else -> LightColorScheme
+    }
+
+    MaterialTheme(
+        colorScheme = colorScheme,
+        typography = Typography,
+        content = content
+    )
+}
\ No newline at end of file
diff --git a/android/app/src/main/java/eu/jopek/dingdongmail/ui/theme/Type.kt b/android/app/src/main/java/eu/jopek/dingdongmail/ui/theme/Type.kt
new file mode 100644
index 0000000..03d0dd1
--- /dev/null
+++ b/android/app/src/main/java/eu/jopek/dingdongmail/ui/theme/Type.kt
@@ -0,0 +1,34 @@
+package eu.jopek.dingdongmail.ui.theme
+
+import androidx.compose.material3.Typography
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.sp
+
+// Set of Material typography styles to start with
+val Typography = Typography(
+    bodyLarge = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 16.sp,
+        lineHeight = 24.sp,
+        letterSpacing = 0.5.sp
+    )
+    /* Other default text styles to override
+    titleLarge = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 22.sp,
+        lineHeight = 28.sp,
+        letterSpacing = 0.sp
+    ),
+    labelSmall = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Medium,
+        fontSize = 11.sp,
+        lineHeight = 16.sp,
+        letterSpacing = 0.5.sp
+    )
+    */
+)
\ No newline at end of file