feat: add Training Timer and calculation of optimal Round Times

app/src/main/AndroidManifest.xml

@@ -2,6 +2,9 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
 
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
+    <uses-permission android:name="android.permission.WAKE_LOCK" />
     <application
         android:allowBackup="true"
         android:dataExtractionRules="@xml/data_extraction_rules"

app/src/main/java/de/patani/kettlebelltracker/MainActivity.kt

@@ -34,7 +34,7 @@ class MainActivity : ComponentActivity() {
 
     private val apiService by lazy {
         Retrofit.Builder()
-            .baseUrl("http://192.168.178.43:8080/") // WICHTIG: Deine lokale IP
+            .baseUrl("https://kb.patanix.de/")
             .addConverterFactory(GsonConverterFactory.create())
             .build()
             .create(de.patani.kettlebelltracker.data.remote.ApiService::class.java)

app/src/main/java/de/patani/kettlebelltracker/data/remote/ApiService.kt

@@ -1,10 +1,38 @@
 package de.patani.kettlebelltracker.data.remote
 
+import retrofit2.Response
 import retrofit2.http.Body
 import retrofit2.http.POST
-import retrofit2.Response
 
 interface ApiService {
     @POST("trainings/")
     suspend fun sendTrainingData(@Body payload: TrainingPayload): Response<Unit>
+
+    @POST("trainings/recommend-rest")
+    suspend fun getRecommendedRest(@Body request: RestRecommendationRequest): Response<ApiResponse<RestRecommendationData>>
+
 }
+
+data class RestRecommendationRequest(
+    val uuid: String,
+    val reps_per_set: Int,
+    val current_sets: Int
+)
+
+data class RestRecommendationResponse(
+    val recommended_rest_seconds: Int
+)
+
+data class ApiResponse<T>(
+    val status: String,
+    val message: String?,
+    val data: T?
+)
+
+data class RestRecommendationData(
+    val recommended_rest: Int,
+    val expected_sets: Int,
+    val last_training_rest: Int?,
+    val last_training_sets: Int?,
+    val reasoning: String?
+)

app/src/main/java/de/patani/kettlebelltracker/repositories/ApiRepository.kt

@@ -3,8 +3,12 @@ package de.patani.kettlebelltracker.repositories
 import android.util.Log
 import de.patani.kettlebelltracker.data.remote.TrainingPayload
 import de.patani.kettlebelltracker.data.remote.ApiService
+import de.patani.kettlebelltracker.data.remote.RestRecommendationData
+import de.patani.kettlebelltracker.data.remote.RestRecommendationRequest
+import de.patani.kettlebelltracker.data.remote.RestRecommendationResponse
 
 class ApiRepository(private val apiService: ApiService) {
+
     suspend fun sendTrainingData(session: de.patani.kettlebelltracker.data.local.TrainingSession, uuid: String) {
         try {
             val rest = if (session.sets > 0) {
@@ -29,4 +33,19 @@ class ApiRepository(private val apiService: ApiService) {
             Log.e("ApiRepository", "API Error: Failed to send training data", e)
         }
     }
+
+    suspend fun getRecommendedRest(uuid: String, repsPerSet: Int, currentSets: Int): RestRecommendationData? {
+        return try {
+            val request = RestRecommendationRequest(uuid, repsPerSet, currentSets)
+            val response = apiService.getRecommendedRest(request)
+            if (response.isSuccessful) {
+                response.body()?.data
+            } else {
+                null
+            }
+        } catch (e: Exception) {
+            null
+        }
+    }
+
 }

app/src/main/java/de/patani/kettlebelltracker/ui/screens/HistoryScreen.kt

@@ -1,96 +1,3 @@
-//
-//import androidx.compose.foundation.layout.*
-//import androidx.compose.foundation.lazy.LazyColumn
-//import androidx.compose.foundation.lazy.items
-//import androidx.compose.material3.*
-//import androidx.compose.runtime.*
-//import androidx.compose.ui.Modifier
-//import androidx.compose.ui.unit.dp
-//import de.patani.kettlebelltracker.viewmodels.HistoryViewModel
-//import de.patani.kettlebelltracker.util.formatDate
-//import de.patani.kettlebelltracker.util.formatDuration
-//import de.patani.kettlebelltracker.data.local.TrainingSession
-//
-//@Composable
-//fun HistoryScreen(viewModel: HistoryViewModel) {
-//    val history by viewModel.history.collectAsState()
-//
-//    if (history.isEmpty()) {
-//        Box(modifier = Modifier.fillMaxSize(), contentAlignment = androidx.compose.ui.Alignment.Center) {
-//            Text("Noch keine Trainingsdaten vorhanden.")
-//        }
-//    } else {
-//        LazyColumn(
-//            modifier = Modifier.fillMaxSize(),
-//            contentPadding = PaddingValues(16.dp),
-//            verticalArrangement = Arrangement.spacedBy(8.dp)
-//        ) {
-//            item {
-//                Row(Modifier.fillMaxWidth()) {
-//                    Text("Datum", modifier = Modifier.weight(1f))
-//                    Text("Sätze", modifier = Modifier.weight(0.5f))
-//                    Text("Dauer", modifier = Modifier.weight(0.7f))
-//                    Text("Reps", modifier = Modifier.weight(0.5f))
-//                }
-//                Divider(modifier = Modifier.padding(vertical = 8.dp))
-//            }
-//            items(history) { session ->
-//                HistoryItem(session = session, onUpdate = viewModel::updateSession, onDelete = viewModel::deleteSession)
-//            }
-//        }
-//    }
-//}
-//
-//@OptIn(ExperimentalMaterial3Api::class)
-//@Composable
-//fun HistoryItem(session: TrainingSession, onUpdate: (TrainingSession) -> Unit, onDelete: (TrainingSession) -> Unit) {
-//    var showDialog by remember { mutableStateOf(false) }
-//
-//    Card(onClick = { showDialog = true }, modifier = Modifier.fillMaxWidth()) {
-//        Row(modifier = Modifier.padding(16.dp)) {
-//            Text(text = session.date.formatDate(), modifier = Modifier.weight(1f))
-//            Text(text = session.sets.toString(), modifier = Modifier.weight(0.5f))
-//            Text(text = formatDuration(session.duration), modifier = Modifier.weight(0.7f))
-//            Text(text = session.repsPerSet.toString(), modifier = Modifier.weight(0.5f))
-//        }
-//    }
-//
-//    if (showDialog) {
-//        EditHistoryDialog(
-//            session = session,
-//            onDismiss = { showDialog = false },
-//            onSave = { updatedSession ->
-//                onUpdate(updatedSession)
-//                showDialog = false
-//            },
-//            onDelete = {
-//                onDelete(session)
-//                showDialog = false
-//            }
-//        )
-//    }
-//}
-//
-//@Composable
-//fun EditHistoryDialog(session: TrainingSession, onDismiss: () -> Unit, onSave: (TrainingSession) -> Unit, onDelete: () -> Unit) {
-//    // Implement a detailed dialog for editing if needed, similar to the Go app's dialog.
-//    // For brevity, this example uses a simpler confirmation.
-//    AlertDialog(
-//        onDismissRequest = onDismiss,
-//        title = { Text("Eintrag verwalten") },
-//        text = { Text("Möchtest du diesen Eintrag löschen? Das Bearbeiten kann in einer zukünftigen Version implementiert werden.") },
-//        confirmButton = {
-//            Button(onClick = onDelete) {
-//                Text("Löschen")
-//            }
-//        },
-//        dismissButton = {
-//            Button(onClick = onDismiss) {
-//                Text("Abbrechen")
-//            }
-//        }
-//    )
-//}
 package de.patani.kettlebelltracker.ui.screens
 
 import androidx.compose.foundation.layout.*

app/src/main/java/de/patani/kettlebelltracker/ui/screens/TrainingScreen.kt

@@ -6,7 +6,6 @@ import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.text.font.FontWeight
-import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import de.patani.kettlebelltracker.viewmodels.TrainingViewModel
@@ -14,8 +13,8 @@ import de.patani.kettlebelltracker.util.formatDuration
 
 @Composable
 fun TrainingScreen(viewModel: TrainingViewModel) {
-    val state by viewModel.trainingState.collectAsState()
+    val trainingState by viewModel.trainingState.collectAsState()
-    val showFinishButton = state.remainingSeconds <= 0 && state.isTrainingRunning
+    val showFinishButton = trainingState.remainingSeconds <= 0 && trainingState.isTrainingRunning
 
     Column(
         modifier = Modifier
@@ -24,44 +23,65 @@ fun TrainingScreen(viewModel: TrainingViewModel) {
         horizontalAlignment = Alignment.CenterHorizontally,
         verticalArrangement = Arrangement.SpaceEvenly
     ) {
+
+        if (trainingState.isRoundActive) {
+            RoundTimerCard(
+                timeRemaining = trainingState.currentRoundTime,
+                totalTime = trainingState.totalRoundTime,
+            )
+        }
+
+        if (trainingState.isRoundActive) {
             Column(horizontalAlignment = Alignment.CenterHorizontally) {
                 Text("Verbleibende Zeit", style = MaterialTheme.typography.titleLarge)
                 Text(
-                text = formatDuration(state.remainingSeconds.toLong()),
+                    text = formatDuration(trainingState.remainingSeconds.toLong()),
                     fontSize = 72.sp,
-                fontWeight = FontWeight.Bold
+                    fontWeight = FontWeight.Bold,
+                    color = if (trainingState.remainingSeconds <= 10)
+                        MaterialTheme.colorScheme.error
+                    else MaterialTheme.colorScheme.onSurface
                 )
             }
+        }
 
         Column(horizontalAlignment = Alignment.CenterHorizontally) {
             Text("Sätze", style = MaterialTheme.typography.titleLarge)
             Text(
-                text = "${state.setsDone} / ${state.goalSets}",
+                text = "${trainingState.setsDone} / ${trainingState.goalSets}",
                 fontSize = 60.sp,
                 fontWeight = FontWeight.Bold,
                 color = MaterialTheme.colorScheme.tertiary
             )
             Text(
-                text = "${state.repsPerSet} Wiederholungen",
+                text = "${trainingState.repsPerSet} Wiederholungen",
                 fontSize = 24.sp,
                 color = MaterialTheme.colorScheme.onSurface.copy(alpha = 0.7f)
             )
         }
 
-        Column(horizontalAlignment = Alignment.CenterHorizontally, verticalArrangement = Arrangement.spacedBy(12.dp)) {
+        Column(
+            horizontalAlignment = Alignment.CenterHorizontally,
+            verticalArrangement = Arrangement.spacedBy(12.dp)
+        ) {
+            if (trainingState.isRoundActive) {
                 Button(
                     onClick = viewModel::completeSet,
-                enabled = state.isTrainingRunning,
+                    enabled = trainingState.isTrainingRunning,
                     modifier = Modifier
                         .fillMaxWidth()
                         .height(60.dp)
                 ) {
                     Text("Satz abschließen", fontSize = 18.sp)
                 }
+            }
+
             if (showFinishButton) {
                 Button(
                     onClick = viewModel::finishTraining,
-                    colors = ButtonDefaults.buttonColors(containerColor = MaterialTheme.colorScheme.error),
+                    colors = ButtonDefaults.buttonColors(
+                        containerColor = MaterialTheme.colorScheme.error
+                    ),
                     modifier = Modifier
                         .fillMaxWidth()
                         .height(50.dp)
@@ -72,3 +92,82 @@ fun TrainingScreen(viewModel: TrainingViewModel) {
         }
     }
 }
+
+@Composable
+fun RoundTimerCard(
+    timeRemaining: Int,
+    totalTime: Int
+) {
+    Card(
+        modifier = Modifier
+            .fillMaxWidth()
+            .padding(8.dp),
+        colors = CardDefaults.cardColors(
+            containerColor = when {
+                timeRemaining <= 0 -> MaterialTheme.colorScheme.errorContainer
+                timeRemaining <= 10 -> MaterialTheme.colorScheme.tertiary.copy(alpha = 0.3f)
+                else -> MaterialTheme.colorScheme.primaryContainer
+            }
+        )
+    ) {
+        Column(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(20.dp),
+            horizontalAlignment = Alignment.CenterHorizontally
+        ) {
+            Text(
+                text = if (timeRemaining <= 0) "Zeit abgelaufen!" else "Rundenzeit",
+                style = MaterialTheme.typography.titleLarge,
+                color = when {
+                    timeRemaining <= 0 -> MaterialTheme.colorScheme.error
+                    else -> MaterialTheme.colorScheme.primary
+                }
+            )
+
+            Spacer(modifier = Modifier.height(16.dp))
+
+            Box(
+                modifier = Modifier.size(120.dp),
+                contentAlignment = Alignment.Center
+            ) {
+                val progress = if (totalTime > 0 && timeRemaining >= 0) {
+                    (totalTime - timeRemaining).toFloat() / totalTime.toFloat()
+                } else if (timeRemaining < 0) 1f else 0f
+
+                CircularProgressIndicator(
+                    progress = progress,
+                    modifier = Modifier.fillMaxSize(),
+                    strokeWidth = 8.dp,
+                    color = when {
+                        timeRemaining <= 0 -> MaterialTheme.colorScheme.error
+                        timeRemaining <= 10 -> MaterialTheme.colorScheme.tertiary
+                        else -> MaterialTheme.colorScheme.primary
+                    }
+                )
+
+                Column(horizontalAlignment = Alignment.CenterHorizontally) {
+                    Text(
+                        text = if (timeRemaining >= 0) {
+                            formatDuration(timeRemaining.toLong())
+                        } else {
+                            "+${formatDuration((-timeRemaining).toLong())}"
+                        },
+                        fontSize = 24.sp,
+                        fontWeight = FontWeight.Bold,
+                        color = when {
+                            timeRemaining <= 0 -> MaterialTheme.colorScheme.error
+                            timeRemaining <= 10 -> MaterialTheme.colorScheme.tertiary
+                            else -> MaterialTheme.colorScheme.primary
+                        }
+                    )
+                    Text(
+                        text = if (timeRemaining <= 0) "überzogen" else "verbleibend",
+                        fontSize = 12.sp,
+                        color = MaterialTheme.colorScheme.onSurface.copy(alpha = 0.7f)
+                    )
+                }
+            }
+        }
+    }
+}

app/src/main/java/de/patani/kettlebelltracker/ui/theme/Theme.kt

@@ -1,17 +1,9 @@
 package de.patani.kettlebelltracker.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
 
-import androidx.compose.material3.darkColorScheme
 import androidx.compose.ui.graphics.Color
 
 private val DarkColorScheme = darkColorScheme(

app/src/main/java/de/patani/kettlebelltracker/ui/theme/Type.kt

@@ -6,7 +6,6 @@ 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,
@@ -15,20 +14,4 @@ val Typography = Typography(
         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
-    )
-    */
 )

app/src/main/java/de/patani/kettlebelltracker/util/formatDuration.kt

@@ -1,5 +1,6 @@
 package de.patani.kettlebelltracker.util
 
+import android.annotation.SuppressLint
 import java.text.SimpleDateFormat
 import java.util.Date
 import java.util.Locale
@@ -9,6 +10,7 @@ fun Date.formatDate(): String {
     return formatter.format(this)
 }
 
+@SuppressLint("DefaultLocale")
 fun formatDuration(totalSeconds: Long): String {
     if (totalSeconds < 0) return "00:00"
     val minutes = totalSeconds / 60

app/src/main/java/de/patani/kettlebelltracker/viewmodels/TrainingViewModel.kt

@@ -1,5 +1,7 @@
 package de.patani.kettlebelltracker.viewmodels
 
+import android.media.AudioManager
+import android.media.ToneGenerator
 import android.util.Log
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
@@ -27,7 +29,11 @@ data class TrainingState(
     val currentProgram: String = "clean_1.0",
     val currentBlockDay: Int = 1,
     val currentReps: Int = 5,
-    val totalTrainingDays: Int = 0
+    val totalTrainingDays: Int = 0,
+    // Neue Rundentimer-Eigenschaften
+    val isRoundActive: Boolean = false,
+    val currentRoundTime: Int = 0,
+    val totalRoundTime: Int = 0
 )
 
 class TrainingViewModel(
@@ -41,9 +47,9 @@ class TrainingViewModel(
     val trainingState = _trainingState.asStateFlow()
 
     private var timerJob: Job? = null
+    private var roundTimerJob: Job? = null
 
     init {
-        // Load initial state based on past trainings
         viewModelScope.launch {
             val trainingCount = dao.getTrainingCount().first()
             val initialState = calculateStateByDayCount(trainingCount)
@@ -59,6 +65,8 @@ class TrainingViewModel(
         }
     }
 
+    private var recommendedRestSeconds: Int = 90
+
     fun startTraining() {
         if (_trainingState.value.isTrainingRunning) return
 
@@ -76,7 +84,15 @@ class TrainingViewModel(
                     progress = 0.0f
                 )
             }
+            val recommendation = apiRepository.getRecommendedRest(
+                uuid = appUUID,
+                repsPerSet = _trainingState.value.repsPerSet,
+                currentSets = 0 // ggf. 0 oder deinen Startwert
+            )
+            recommendedRestSeconds = recommendation?.recommended_rest ?: 90
+            Log.d("Training", "using rest time ${recommendedRestSeconds.toString()}")
             startTimer()
+            startFirstRound()
         }
     }
 
@@ -93,20 +109,87 @@ class TrainingViewModel(
         }
     }
 
+    private fun startFirstRound() {
+        startRoundTimer(recommendedRestSeconds)
+    }
+
     fun completeSet() {
         if (!_trainingState.value.isTrainingRunning) return
 
-        _trainingState.update {
+        val currentState = _trainingState.value
-            val newSetsDone = it.setsDone + 1
+        val newSetsDone = currentState.setsDone + 1
-            val newProgress = if (it.goalSets > 0) {
+        val newProgress = if (currentState.goalSets > 0) {
-                min(newSetsDone.toFloat() / it.goalSets.toFloat(), 1.0f)
+            min(newSetsDone.toFloat() / currentState.goalSets.toFloat(), 1.0f)
         } else 0.0f
-            it.copy(setsDone = newSetsDone, progress = newProgress)
+
+        _trainingState.update {
+            it.copy(
+                setsDone = newSetsDone,
+                progress = newProgress
+            )
+        }
+
+        stopRoundTimer()
+
+        if (newSetsDone < currentState.goalSets) {
+            startNextRound()
+        }
+    }
+
+    private fun startNextRound() {
+                startRoundTimer(recommendedRestSeconds)
+    }
+
+    private fun startRoundTimer(seconds: Int) {
+        roundTimerJob?.cancel()
+
+        _trainingState.update {
+            it.copy(
+                isRoundActive = true,
+                currentRoundTime = seconds,
+                totalRoundTime = seconds
+            )
+        }
+
+        roundTimerJob = viewModelScope.launch {
+            while (_trainingState.value.currentRoundTime > 0 && _trainingState.value.isRoundActive) {
+                delay(1000)
+                _trainingState.update {
+                    it.copy(currentRoundTime = it.currentRoundTime - 1)
+                }
+            }
+
+            if (_trainingState.value.isRoundActive) {
+                playRoundCompleteSound()
+            }
+        }
+    }
+
+    private fun stopRoundTimer() {
+        roundTimerJob?.cancel()
+        _trainingState.update {
+            it.copy(
+                isRoundActive = false,
+                currentRoundTime = 0,
+                totalRoundTime = 0
+            )
+        }
+    }
+
+    private fun playRoundCompleteSound() {
+        viewModelScope.launch {
+            try {
+                val toneGenerator = ToneGenerator(AudioManager.STREAM_NOTIFICATION, 100)
+                toneGenerator.startTone(ToneGenerator.TONE_CDMA_ALERT_CALL_GUARD, 1000)
+            } catch (e: Exception) {
+                Log.e("TrainingViewModel", "Could not play sound", e)
+            }
         }
     }
 
     fun finishTraining() {
         timerJob?.cancel()
+        roundTimerJob?.cancel()
         if (!_trainingState.value.isTrainingRunning) return
 
         viewModelScope.launch {
@@ -165,5 +248,11 @@ class TrainingViewModel(
         return ProgramState(program, blockDay, reps)
     }
 
+    override fun onCleared() {
+        super.onCleared()
+        timerJob?.cancel()
+        roundTimerJob?.cancel()
+    }
+
     data class ProgramState(val program: String, val blockDay: Int, val reps: Int)
 }