Improve WASM client reusability

clients/compose/build.gradle.kts

@@ -154,16 +154,4 @@ fun envValue(key: String): String? {
             }
             .firstOrNull { it.first == key }?.second
     }
-}
-
-buildConfig {
-    sourceSets.getByName("wasmJsMain") {
-        val serverUrl = envValue("WASM_SERVER_URL") ?:
-            throw GradleException("MISSING CONFIGURATION: WASM_SERVER_URL. Please set it as environment variable or `.env` variable.")
-
-        className("WasmConfig")
-        packageName("com.jaytux.phoebench.clients")
-        useKotlinOutput()
-        buildConfigField("SERVER_URL", serverUrl)
-    }
 }

clients/compose/src/wasmJsMain/kotlin/com/jaytux/phoebench/clients/Main.kt

@@ -1,11 +1,13 @@
 package com.jaytux.phoebench.clients
 
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.ui.ExperimentalComposeUiApi
 import androidx.compose.ui.window.ComposeViewport
 import kotlinx.browser.document
 
 @OptIn(ExperimentalComposeUiApi::class)
-fun main() {
+suspend fun main() {
+    config = loadConfig()
     ComposeViewport(document.body!!) {
         App()
     }

clients/compose/src/wasmJsMain/kotlin/com/jaytux/phoebench/clients/PlatformAPI.wasmJs.kt

@@ -6,7 +6,10 @@ import com.jaytux.phoebench.clients.ui.constantServerSelect
 import io.ktor.client.*
 import io.ktor.client.engine.js.*
 import kotlinx.browser.window
+import kotlinx.coroutines.await
 import kotlinx.serialization.KSerializer
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.decodeFromString
 import kotlinx.serialization.json.Json
 import kotlinx.serialization.serializer
 import kotlin.uuid.Uuid
@@ -56,7 +59,19 @@ private external fun jsFormat(num: Double): String
 
 actual fun format(f: Float): String = jsFormat(f.toDouble())
 
+@Serializable
+data class Config(val server: String)
+
+@OptIn(ExperimentalWasmJsInterop::class)
+suspend fun loadConfig(): Config {
+    val resp = window.fetch("config.json").await()
+    val text = resp.text().await()
+    return Json.decodeFromString<Config>(text.toString())
+}
+
+lateinit var config: Config
+
 @Composable
 actual fun ServerSelect(server: String, onUpdate: (String) -> Unit) {
-    constantServerSelect(WasmConfig.SERVER_URL)(server, onUpdate)
+    constantServerSelect(config.server)(server, onUpdate)
 }