Load desktop config file

Author: jdamcd

desktop/build.gradle.kts

@@ -13,6 +13,7 @@ dependencies {
     implementation(libs.compose.viewmodel)
     implementation(libs.coroutines.swing)
     implementation(libs.koin)
+    implementation(libs.snakeyaml)
 }
 
 compose.desktop {

desktop/src/main/kotlin/com/jdamcd/arrivals/desktop/Main.kt

@@ -12,7 +12,12 @@ import androidx.compose.ui.window.WindowPosition
 import androidx.compose.ui.window.application
 import androidx.compose.ui.window.rememberWindowState
 import com.jdamcd.arrivals.Arrivals
+import com.jdamcd.arrivals.Settings
+import com.jdamcd.arrivals.SettingsConfig
 import com.jdamcd.arrivals.initKoin
+import org.yaml.snakeyaml.Yaml
+import java.io.File
+import java.io.FileInputStream
 import kotlin.system.exitProcess
 
 private val koin = initKoin().koin
@@ -27,6 +32,8 @@ fun main(args: Array<String>) = application {
         size = DpSize(width.dp, height.dp)
     )
 
+    loadConfig(koin.get<Settings>())
+
     val viewModel = ArrivalsViewModel(koin.get<Arrivals>())
     val state: ArrivalsState by viewModel.uiState.collectAsState(ArrivalsState.Loading)
 
@@ -48,3 +55,25 @@ fun main(args: Array<String>) = application {
 }
 
 private fun dimenFromArg(args: Array<String>, index: Int): Int? = if (args.size > index) args[index].toIntOrNull() else null
+
+fun loadConfig(settings: Settings) {
+    val path = "${System.getProperty("user.home")}/.arrivals.yml"
+    val configFile = File(path)
+
+    if (configFile.exists()) {
+        try {
+            FileInputStream(configFile).use { inputStream ->
+                val data: Map<String, String> = Yaml().load(inputStream)
+                data[SettingsConfig.MODE]?.let { settings.mode = it }
+                data[SettingsConfig.GTFS_REALTIME]?.let { settings.gtfsRealtime = it }
+                data[SettingsConfig.GTFS_SCHEDULE]?.let { settings.gtfsSchedule = it }
+                data[SettingsConfig.GTFS_STOP]?.let { settings.gtfsStop = it }
+                data[SettingsConfig.TFL_STOP]?.let { settings.tflStopId = it }
+                data[SettingsConfig.TFL_PLATFORM]?.let { settings.tflPlatform = it }
+                data[SettingsConfig.TFL_DIRECTION]?.let { settings.tflDirection = it }
+            }
+        } catch (e: Exception) {
+            println("Error reading config file: ${e.message}")
+        }
+    }
+}

gradle/libs.versions.toml

@@ -15,6 +15,7 @@ logging = "2.0.16"
 clikt = "5.0.2"
 composeMP = "1.7.3"
 viewModel = "2.8.2"
+snakeYaml = "2.3"
 
 [libraries]
 ktor-client-core = { group = "io.ktor", name = "ktor-client-core", version.ref = "ktor" }
@@ -32,6 +33,7 @@ logging-nop = { group = "org.slf4j", name = "slf4j-nop", version.ref = "logging"
 clikt = { group = "com.github.ajalt.clikt", name = "clikt", version.ref = "clikt" }
 compose-viewmodel = { group = "org.jetbrains.androidx.lifecycle", name = "lifecycle-viewmodel-compose", version.ref = "viewModel" }
 coroutines-swing = { group = "org.jetbrains.kotlinx", name = "kotlinx-coroutines-swing", version.ref = "coroutines" }
+snakeyaml = { group = "org.yaml", name = "snakeyaml", version.ref = "snakeYaml" }
 
 coroutines-test = { group = "org.jetbrains.kotlinx", name = "kotlinx-coroutines-test", version.ref = "coroutines" }
 mockk = { group = "io.mockk", name = "mockk", version.ref = "mockk" }

shared/src/commonMain/kotlin/com/jdamcd/arrivals/Settings.kt

@@ -18,8 +18,8 @@ object SettingsConfig {
     const val MODE_TFL = "tfl"
     const val MODE_GTFS = "gtfs"
 
-    const val TFL_STOP_ID = "selected_stop_id"
-    const val TFL_STOP_ID_DEFAULT = "910GSHRDHST"
+    const val TFL_STOP = "tfl_stop"
+    const val TFL_STOP_DEFAULT = "910GSHRDHST"
     const val TFL_PLATFORM = "tfl_platform"
     const val TFL_PLATFORM_DEFAULT = "Platform 2"
     const val TFL_DIRECTION = "tfl_direction"

shared/src/jvmMain/kotlin/com/jdamcd/arrivals/Settings.jvm.kt

@@ -2,7 +2,7 @@ package com.jdamcd.arrivals
 
 actual class Settings actual constructor() {
     actual var mode = SettingsConfig.MODE_GTFS
-    actual var tflStopId = SettingsConfig.TFL_STOP_ID_DEFAULT
+    actual var tflStopId = SettingsConfig.TFL_STOP_DEFAULT
     actual var tflPlatform = SettingsConfig.TFL_PLATFORM_DEFAULT
     actual var tflDirection = SettingsConfig.TFL_DIRECTION_DEFAULT
     actual var gtfsStopsUpdated = 0L

shared/src/macosMain/kotlin/com/jdamcd/arrivals/Settings.kt

@@ -12,9 +12,9 @@ actual class Settings actual constructor() {
         }
 
     actual var tflStopId: String
-        get() = defaults.stringForKey(SettingsConfig.TFL_STOP_ID) ?: SettingsConfig.TFL_STOP_ID_DEFAULT
+        get() = defaults.stringForKey(SettingsConfig.TFL_STOP) ?: SettingsConfig.TFL_STOP_DEFAULT
         set(value) {
-            defaults.setObject(value, SettingsConfig.TFL_STOP_ID)
+            defaults.setObject(value, SettingsConfig.TFL_STOP)
         }
 
     actual var tflPlatform: String