new: add logging abstraction with Kermit integration

shared/src/commonMain/kotlin/fr/ajaury/gwenedeg/core/logging/KermitLogger.kt

@@ -0,0 +1,26 @@
+package fr.ajaury.gwenedeg.core.logging
+
+import co.touchlab.kermit.Logger as Kermit
+
+/**
+ * Kermit-backed implementation (adapter) of the [Logger] port.
+ */
+class KermitLogger(
+    private val tag: String = "Gwenedeg",
+) : Logger {
+    override fun debug(message: String, throwable: Throwable?) {
+        Kermit.d(throwable = throwable, tag = tag) { message }
+    }
+
+    override fun info(message: String, throwable: Throwable?) {
+        Kermit.i(throwable = throwable, tag = tag) { message }
+    }
+
+    override fun warning(message: String, throwable: Throwable?) {
+        Kermit.w(throwable = throwable, tag = tag) { message }
+    }
+
+    override fun error(message: String, throwable: Throwable?) {
+        Kermit.e(throwable = throwable, tag = tag) { message }
+    }
+}

shared/src/commonMain/kotlin/fr/ajaury/gwenedeg/core/logging/Logger.kt

@@ -0,0 +1,27 @@
+package fr.ajaury.gwenedeg.core.logging
+
+/**
+ * Logging abstraction so the rest of the app depends on this interface
+ * rather than on a concrete logging library.
+ */
+interface Logger {
+    fun debug(
+        message: String,
+        throwable: Throwable? = null,
+    )
+
+    fun info(
+        message: String,
+        throwable: Throwable? = null,
+    )
+
+    fun warning(
+        message: String,
+        throwable: Throwable? = null,
+    )
+
+    fun error(
+        message: String,
+        throwable: Throwable? = null,
+    )
+}

shared/src/commonMain/kotlin/fr/ajaury/gwenedeg/di/Modules.kt

@@ -1,5 +1,7 @@
 package fr.ajaury.gwenedeg.di
 
+import fr.ajaury.gwenedeg.core.logging.KermitLogger
+import fr.ajaury.gwenedeg.core.logging.Logger
 import fr.ajaury.gwenedeg.player.ui.viewmodel.PlayerViewModel
 import fr.ajaury.gwenedeg.records.data.InMemoryRecordRepository
 import fr.ajaury.gwenedeg.records.domain.RecordRepository
@@ -10,6 +12,7 @@ import org.koin.core.module.dsl.viewModelOf
 import org.koin.dsl.module
 
 val sharedModule = module {
+    single<Logger> { KermitLogger() }
     factoryOf(::InMemoryRecordRepository) { bind<RecordRepository>() }
     viewModelOf(::RecordsViewModel)
     viewModelOf(::PlayerViewModel)

shared/src/commonMain/kotlin/fr/ajaury/gwenedeg/player/ui/viewmodel/PlayerViewModel.kt

@@ -2,6 +2,7 @@ package fr.ajaury.gwenedeg.player.ui.viewmodel
 
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
+import fr.ajaury.gwenedeg.core.logging.Logger
 import fr.ajaury.gwenedeg.player.AudioPlayer
 import fr.ajaury.gwenedeg.player.AudioSessionManager
 import fr.ajaury.gwenedeg.player.PlaybackState
@@ -16,6 +17,7 @@ import kotlin.time.Duration.Companion.seconds
 class PlayerViewModel(
     private val audioPlayer: AudioPlayer,
     private val audioSessionManager: AudioSessionManager,
+    private val logger: Logger,
 ) : ViewModel() {
     private var filePath: String? = null
 
@@ -32,9 +34,13 @@ class PlayerViewModel(
     }
 
     fun play(filePath: String) {
-        this.filePath = filePath
-        audioPlayer.load(uri = Res.getUri(filePath))
-        audioPlayer.play()
+        try {
+            this.filePath = filePath
+            audioPlayer.load(uri = Res.getUri(filePath))
+            audioPlayer.play()
+        } catch (exception: Exception) {
+            logger.error(message = "Failed to play audio: $filePath", throwable = exception)
+        }
     }
 
     fun performMainPlayAction() {