settings wird so langsam (#1)

shared/build.gradle.kts

@@ -24,6 +24,7 @@ kotlin {
     sourceSets {
         commonMain.dependencies {
             implementation(libs.bundles.kotlin.compose)
+            implementation(libs.ktor.serializationJson)
 
         }
         jvmMain.dependencies {

shared/src/commonMain/kotlin/net/keinekekse/app/config/ConfigProperties.kt

@@ -0,0 +1,5 @@
+package net.keinekekse.app.config
+
+interface ConfigProperties {
+    operator fun get(key: String): String?
+}

shared/src/commonMain/kotlin/net/keinekekse/app/config/Settings.kt

@@ -1,5 +1,10 @@
 package net.keinekekse.app.config
 
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class SettingsEntry(val key: String, val value: String)
+
 interface Settings {
     fun get(key: String): String?
     fun get(key: String, default: String): String = get(key) ?: default
@@ -24,4 +29,7 @@ interface Settings {
 
     fun size(): Int
     fun keys(): Set<String>
+
+    fun export(): String
+    fun import(data: String)
 }

shared/src/commonMain/kotlin/net/keinekekse/app/ui/ProgressIndicator.kt

@@ -10,8 +10,6 @@ import androidx.compose.ui.draw.drawBehind
 import androidx.compose.ui.graphics.drawscope.Stroke
 import androidx.compose.ui.unit.dp
 
-// TODO (ProgressIndicator.() -> Unit) --> { animationSize = ....
-
 @Composable
 fun ProgressIndicator(animationSize: Int = 48, paddingTop: Int = 16, strokeWidth: Int = 5) {
     val primaryColor = MaterialTheme.colorScheme.primary

shared/src/jvmMain/kotlin/net/keinekekse/app/config/JvmConfigProperties.kt

@@ -0,0 +1,26 @@
+package net.keinekekse.app.config
+
+import java.io.InputStream
+import java.util.*
+
+class JvmConfigProperties(val configFileName: String = "config.properties") : ConfigProperties {
+
+    private var properties = Properties()
+
+    override operator fun get(key: String): String? = properties.getProperty(key)
+
+    init {
+        loadConfigFile()
+    }
+
+    private fun loadConfigFile() {
+        getConfigStream().use { stream ->
+            properties.load(stream)
+        }
+    }
+
+    private fun getConfigStream(): InputStream {
+        return javaClass.classLoader.getResourceAsStream(configFileName)
+            ?: throw IllegalStateException("Could not load configuration from $configFileName")
+    }
+}

shared/src/jvmMain/kotlin/net/keinekekse/app/config/JvmSettings.kt

@@ -1,5 +1,6 @@
 package net.keinekekse.app.config
 
+import kotlinx.serialization.json.Json
 import java.util.prefs.Preferences
 
 class JvmSettings(clazz: Class<*>? = null) : Settings {
@@ -52,4 +53,13 @@ class JvmSettings(clazz: Class<*>? = null) : Settings {
     override fun keys(): Set<String> {
         return preferences.keys().toSet()
     }
+
+    override fun export(): String {
+        val prefList = keys().filter { get(it) != null }.map { SettingsEntry(it, get(it)!!) }
+        return Json {}.encodeToString(prefList)
+    }
+
+    override fun import(data: String) {
+        Json { }.decodeFromString<List<SettingsEntry>>(data).forEach { put(it.key, it.value) }
+    }
 }