feat(settings): Add option to reset all stats

This commit introduces a feature allowing users to delete all their statistics from the app.

Changes include:
- A new "Reset data" dialog to confirm the action.
- A "Delete data ?" button in the settings screen to trigger the dialog.
- Backend logic to clear all statistics from the database.
- Fixes a crash on the stats screen when there is no data to display.
- Added new strings and translations for the reset data feature.

app/src/main/java/org/nsh07/pomodoro/data/StatDao.kt

@@ -60,4 +60,7 @@ interface StatDao {
 
     @Query("SELECT date FROM stat ORDER BY date DESC LIMIT 1")
     suspend fun getLastDate(): LocalDate?
+
+    @Query("DELETE FROM stat")
+    suspend fun clearAll()
 }

app/src/main/java/org/nsh07/pomodoro/data/StatRepository.kt

@@ -33,6 +33,8 @@ interface StatRepository {
     fun getLastNDaysAverageFocusTimes(n: Int): Flow<StatFocusTime?>
 
     suspend fun getLastDate(): LocalDate?
+
+    suspend fun deleteAllStats()
 }
 
 /**
@@ -108,4 +110,8 @@ class AppStatRepository(
         statDao.getLastNDaysAvgFocusTimes(n)
 
     override suspend fun getLastDate(): LocalDate? = statDao.getLastDate()
+
+    override suspend fun deleteAllStats() =
+        statDao.clearAll()
+
 }

app/src/main/java/org/nsh07/pomodoro/ui/settingsScreen/ResetDataDialog.kt

@@ -0,0 +1,107 @@
+package org.nsh07.pomodoro.ui.settingsScreen
+
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.Button
+import androidx.compose.material3.ButtonDefaults
+import androidx.compose.material3.Card
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.ExperimentalMaterial3ExpressiveApi
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme.typography
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.window.Dialog
+import org.nsh07.pomodoro.R
+import org.nsh07.pomodoro.ui.theme.TomatoTheme
+
+@OptIn(ExperimentalMaterial3Api::class, ExperimentalMaterial3ExpressiveApi::class)
+@Composable
+fun ResetDataDialog(
+    modifier: Modifier = Modifier,
+    onDismiss: () -> Unit,
+    resetData: () -> Unit
+) {
+    Dialog(
+        onDismissRequest = onDismiss,
+    ) {
+        Card(
+            modifier = modifier
+                .clickable(onClick = onDismiss),
+            shape = RoundedCornerShape(16.dp),
+        ) {
+            Column(modifier = Modifier.padding(24.dp)) {
+                Icon(
+                    painter = painterResource(R.drawable.clear),
+                    contentDescription = null,
+                    modifier = Modifier
+                        .align(Alignment.CenterHorizontally)
+                        .size(40.dp)
+                )
+                Spacer(Modifier.height(16.dp))
+                Text(
+                    text = stringResource(R.string.reset_data),
+                    textAlign = TextAlign.Center,
+                    style = typography.headlineSmall,
+                    modifier = Modifier.align(Alignment.CenterHorizontally)
+                )
+                Spacer(Modifier.height(16.dp))
+                Text(
+                    text = stringResource(R.string.reset_data_dialog_text),
+                    textAlign = TextAlign.Center
+                )
+                Spacer(modifier = Modifier.height(24.dp))
+
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    horizontalArrangement = Arrangement.End
+                ) {
+                    TextButton(onClick = onDismiss) {
+                        Text(stringResource(android.R.string.cancel))
+                    }
+
+                    Spacer(modifier = Modifier.width(8.dp))
+
+                    Button(
+                        onClick = resetData,
+                        shapes = ButtonDefaults.shapes(),
+                    ) {
+                        Text(stringResource(android.R.string.ok))
+                    }
+                }
+            }
+
+        }
+    }
+}
+
+@Preview
+@Composable
+fun PreviewResetDataDialog() {
+    TomatoTheme {
+        Surface {
+            ResetDataDialog(
+                onDismiss = { },
+                resetData = { }
+            )
+        }
+    }
+}

app/src/main/java/org/nsh07/pomodoro/ui/settingsScreen/SettingsScreen.kt

@@ -27,9 +27,11 @@ import androidx.compose.animation.slideOutHorizontally
 import androidx.compose.animation.togetherWith
 import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.lazy.LazyColumn
@@ -42,6 +44,7 @@ import androidx.compose.material3.LocalTextStyle
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.SliderState
 import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
 import androidx.compose.material3.TopAppBar
 import androidx.compose.material3.TopAppBarDefaults
 import androidx.compose.runtime.Composable
@@ -170,6 +173,14 @@ private fun SettingsScreen(
             setShowSheet = { showLocaleSheet = it }
         )
 
+    if(settingsState.isShowingEraseDataDialog){
+        ResetDataDialog(resetData = {
+            onAction(SettingsAction.EraseData)
+        }, onDismiss = {
+            onAction(SettingsAction.CancelEraseData)
+        })
+    }
+
     NavDisplay(
         backStack = backStack,
         onBack = backStack::removeLastOrNull,
@@ -294,6 +305,20 @@ private fun SettingsScreen(
                             }
 
                         item { Spacer(Modifier.height(12.dp)) }
+
+                        item {
+                            Box(
+                                modifier = Modifier.fillMaxWidth(),
+                                contentAlignment = Alignment.Center
+                            ){
+
+                                TextButton(
+                                    onClick = { onAction(SettingsAction.AskEraseData) },
+                               ) {
+                                    Text(stringResource(R.string.reset_data))
+                                }
+                            }
+                        }
                     }
                 }
             }

app/src/main/java/org/nsh07/pomodoro/ui/settingsScreen/viewModel/SettingsAction.kt

@@ -33,4 +33,7 @@ sealed interface SettingsAction {
     data class SaveAlarmSound(val uri: Uri?) : SettingsAction
     data class SaveTheme(val theme: String) : SettingsAction
     data class SaveColorScheme(val color: Color) : SettingsAction
+    data object AskEraseData : SettingsAction
+    data object CancelEraseData : SettingsAction
+    data object EraseData : SettingsAction
 }

app/src/main/java/org/nsh07/pomodoro/ui/settingsScreen/viewModel/SettingsState.kt

@@ -35,6 +35,7 @@ data class SettingsState(
     val singleProgressBar: Boolean = false,
     val autostartNextSession: Boolean = false,
     val secureAod: Boolean = true,
+    val isShowingEraseDataDialog: Boolean = false,
 
     val focusTime: Long = 25 * 60 * 1000L,
     val shortBreakTime: Long = 5 * 60 * 1000L,

app/src/main/java/org/nsh07/pomodoro/ui/settingsScreen/viewModel/SettingsViewModel.kt

@@ -47,6 +47,7 @@ import kotlinx.coroutines.launch
 import org.nsh07.pomodoro.TomatoApplication
 import org.nsh07.pomodoro.billing.BillingManager
 import org.nsh07.pomodoro.data.PreferenceRepository
+import org.nsh07.pomodoro.data.StatRepository
 import org.nsh07.pomodoro.data.StateRepository
 import org.nsh07.pomodoro.service.ServiceHelper
 import org.nsh07.pomodoro.ui.Screen
@@ -59,6 +60,7 @@ class SettingsViewModel(
     private val billingManager: BillingManager,
     private val preferenceRepository: PreferenceRepository,
     private val stateRepository: StateRepository,
+    private val statRepository: StatRepository,
     private val serviceHelper: ServiceHelper,
     private val time: MutableStateFlow<Long>
 ) : ViewModel() {
@@ -120,6 +122,25 @@ class SettingsViewModel(
             is SettingsAction.SaveTheme -> saveTheme(action.theme)
             is SettingsAction.SaveBlackTheme -> saveBlackTheme(action.enabled)
             is SettingsAction.SaveAodEnabled -> saveAodEnabled(action.enabled)
+            is SettingsAction.AskEraseData -> askEraseData()
+            is SettingsAction.CancelEraseData -> cancelEraseData()
+            is SettingsAction.EraseData -> deleteStats()
+        }
+    }
+
+    private fun cancelEraseData() {
+        viewModelScope.launch(Dispatchers.IO) {
+            _settingsState.update { currentState ->
+                currentState.copy(isShowingEraseDataDialog = false)
+            }
+        }
+    }
+
+    private fun askEraseData() {
+        viewModelScope.launch(Dispatchers.IO) {
+            _settingsState.update { currentState ->
+                currentState.copy(isShowingEraseDataDialog = true)
+            }
         }
     }
 
@@ -137,6 +158,20 @@ class SettingsViewModel(
         }
     }
 
+    private fun deleteStats() {
+        viewModelScope.launch(Dispatchers.IO) {
+
+            serviceHelper.startService(TimerAction.ResetTimer)
+            focusFlowCollectionJob?.cancel()
+            shortBreakFlowCollectionJob?.cancel()
+            longBreakFlowCollectionJob?.cancel()
+            statRepository.deleteAllStats()
+            _settingsState.update {
+                it.copy(isShowingEraseDataDialog = false)
+            }
+        }
+    }
+
     fun runTextFieldFlowCollection() {
         focusFlowCollectionJob = viewModelScope.launch(Dispatchers.IO) {
             snapshotFlow { focusTimeTextFieldState.text }
@@ -343,13 +378,13 @@ class SettingsViewModel(
                 )
 
         val alarmSoundUri = (
-                preferenceRepository.getStringPreference("alarm_sound")
+            preferenceRepository.getStringPreference("alarm_sound")
-                    ?: preferenceRepository.saveStringPreference(
+                ?: preferenceRepository.saveStringPreference(
-                        "alarm_sound",
+                    "alarm_sound",
-                        (Settings.System.DEFAULT_ALARM_ALERT_URI
+                    (Settings.System.DEFAULT_ALARM_ALERT_URI
-                            ?: Settings.System.DEFAULT_RINGTONE_URI).toString()
+                        ?: Settings.System.DEFAULT_RINGTONE_URI).toString()
-                    )
+                )
-                ).toUri()
+            ).toUri()
 
         val theme = preferenceRepository.getStringPreference("theme")
             ?: preferenceRepository.saveStringPreference("theme", settingsState.theme)
@@ -458,6 +493,7 @@ class SettingsViewModel(
                 val appPreferenceRepository = application.container.appPreferenceRepository
                 val serviceHelper = application.container.serviceHelper
                 val stateRepository = application.container.stateRepository
+                val statRepository = application.container.appStatRepository
                 val time = application.container.time
 
                 SettingsViewModel(
@@ -465,7 +501,8 @@ class SettingsViewModel(
                     preferenceRepository = appPreferenceRepository,
                     serviceHelper = serviceHelper,
                     stateRepository = stateRepository,
-                    time = time
+                    statRepository = statRepository,
+                    time = time,
                 )
             }
         }

app/src/main/java/org/nsh07/pomodoro/ui/statsScreen/StatsScreen.kt

@@ -143,17 +143,21 @@ fun StatsScreen(
     val lastMonthSummaryAnalysisModelProducer = remember { CartesianChartModelProducer() }
 
     LaunchedEffect(lastWeekAverageFocusTimes) {
-        lastWeekSummaryAnalysisModelProducer.runTransaction {
+        if (lastWeekAverageFocusTimes.isNotEmpty()) {
-            columnSeries {
+            lastWeekSummaryAnalysisModelProducer.runTransaction {
-                series(lastWeekAverageFocusTimes)
+                columnSeries {
+                    series(lastWeekAverageFocusTimes)
+                }
             }
         }
     }
 
     LaunchedEffect(lastMonthAverageFocusTimes) {
-        lastMonthSummaryAnalysisModelProducer.runTransaction {
+        if (lastMonthAverageFocusTimes.isNotEmpty()) {
-            columnSeries {
+            lastMonthSummaryAnalysisModelProducer.runTransaction {
-                series(lastMonthAverageFocusTimes)
+                columnSeries {
+                    series(lastMonthAverageFocusTimes)
+                }
             }
         }
     }

app/src/main/java/org/nsh07/pomodoro/ui/statsScreen/viewModel/StatsViewModel.kt

@@ -30,6 +30,7 @@ import com.patrykandpatrick.vico.core.common.data.ExtraStore
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.SharingStarted
 import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.filter
 import kotlinx.coroutines.flow.flowOn
 import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.flow.stateIn
@@ -42,6 +43,7 @@ import java.time.LocalDate
 import java.time.format.DateTimeFormatter
 import java.time.format.TextStyle
 import java.util.Locale
+import kotlin.collections.isNotEmpty
 
 class StatsViewModel(
     private val statRepository: StatRepository
@@ -66,6 +68,9 @@ class StatsViewModel(
 
     val lastWeekSummaryChartData: StateFlow<Pair<CartesianChartModelProducer, ExtraStore.Key<List<String>>>> =
         statRepository.getLastNDaysStatsSummary(7)
+            .filter {list ->
+                list.isNotEmpty()
+            }
             .map { list ->
                 // reversing is required because we need ascending order while the DB returns descending order
                 val reversed = list.reversed()
@@ -108,6 +113,9 @@ class StatsViewModel(
 
     val lastMonthSummaryChartData: StateFlow<Pair<CartesianChartModelProducer, ExtraStore.Key<List<String>>>> =
         statRepository.getLastNDaysStatsSummary(30)
+            .filter {list ->
+                list.isNotEmpty()
+            }
             .map { list ->
                 val reversed = list.reversed()
                 val keys = reversed.map { it.date.dayOfMonth.toString() }
@@ -144,6 +152,9 @@ class StatsViewModel(
 
     val lastYearSummaryChartData: StateFlow<Pair<CartesianChartModelProducer, ExtraStore.Key<List<String>>>> =
         statRepository.getLastNDaysStatsSummary(365)
+            .filter {list ->
+                list.isNotEmpty()
+            }
             .map { list ->
                 val reversed = list.reversed()
                 val keys = reversed.map { it.date.format(yearDayFormatter) }

app/src/main/res/values-fr/strings.xml

@@ -86,4 +86,6 @@
     <string name="session_only_progress">Progression de la session uniquement</string>
     <string name="session_only_progress_desc">Montre uniquement la progression de la session actuelle, au lieu de la séquence entière.</string>
     <string name="media_volume_for_alarm_desc">Fonctionne uniquement avec un casque. Si le casque est déconnecté, l\'alarme retentit via le haut-parleur au volume des médias.</string>
+    <string name="reset_data">Réinitialiser les données</string>
+    <string name="reset_data_dialog_text">Êtes-vous sûr de vouloir réinitialiser toutes vos données ?</string>
 </resources>

app/src/main/res/values/strings.xml

@@ -113,4 +113,6 @@
     <string name="secure_aod_desc">Automatically lock your device after a timeout, while keeping the AOD visible</string>
     <string name="timer_reset_message">Timer reset</string>
     <string name="undo">Undo</string>
+    <string name="reset_data">Reset data</string>
+    <string name="reset_data_dialog_text">Are you sure you want to Reset all your data ?</string>
 </resources>