feat: add simple frontend for in-game preview, closes #178

src/commonMain/kotlin/net/kyori/adventure/webui/Constants.kt

@@ -42,10 +42,8 @@ public const val PARAM_EDITOR_TOKEN: String = "token"
 /** Path for getting a short link for a MiniMessage input. */
 public const val URL_MINI_SHORTEN: String = "/mini-shorten"
 
-/** Path for getting a hostname for an in-game MiniMessage motd preview. */
-public const val URL_SETUP_MOTD_PREVIEW: String = "/setup-motd-preview"
-/** Path for getting a hostname for an in-game MiniMessage kick preview. */
-public const val URL_SETUP_KICK_PREVIEW: String = "/setup-kick-preview"
+/** Path for getting a hostname for an in-game MiniMessage preview. */
+public const val URL_IN_GAME_PREVIEW: String = "/in-game-preview"
 
 /** Path for getting the configuration of this WebUI instance */
 public const val URL_BUILD_INFO: String = "/build"

src/commonMain/kotlin/net/kyori/adventure/webui/websocket/Packet.kt

@@ -28,3 +28,9 @@ public data class Combined(
     public val background: String? = null,
     public val mode: String? = null
 )
+
+@Serializable
+public data class InGamePreview(
+    public val miniMessage: String? = null,
+    public val key: String? = null
+)

src/commonMain/resources/web/index.html

@@ -61,6 +61,9 @@ <h1 class="title mc-font">MiniMessage Viewer</h1>
               <button class="button" id="copy-button" aria-label="Copy input" title="Copy input">
                 <span class="icon is-small"><i class="fas fa-copy"></i></span>
               </button>
+              <button class="button" id="in-game-preview-button" aria-label="Try in-game" title="Try in-game">
+                <span class="icon is-small"><i class="fas fa-gamepad"></i></span>
+              </button>
               <div class="dropdown share-dropdown">
                 <div class="dropdown-trigger">
                   <button class="button" aria-haspopup="true" aria-controls="share-dropdown-menu">

src/jsMain/kotlin/net/kyori/adventure/webui/js/Main.kt

@@ -17,13 +17,15 @@ import net.kyori.adventure.webui.URL_API
 import net.kyori.adventure.webui.URL_EDITOR
 import net.kyori.adventure.webui.URL_EDITOR_INPUT
 import net.kyori.adventure.webui.URL_EDITOR_OUTPUT
+import net.kyori.adventure.webui.URL_IN_GAME_PREVIEW
 import net.kyori.adventure.webui.URL_MINI_TO_HTML
 import net.kyori.adventure.webui.URL_MINI_TO_JSON
 import net.kyori.adventure.webui.URL_MINI_TO_TREE
 import net.kyori.adventure.webui.editor.EditorInput
 import net.kyori.adventure.webui.tryDecodeFromString
 import net.kyori.adventure.webui.websocket.Call
 import net.kyori.adventure.webui.websocket.Combined
+import net.kyori.adventure.webui.websocket.InGamePreview
 import net.kyori.adventure.webui.websocket.Packet
 import net.kyori.adventure.webui.websocket.Placeholders
 import net.kyori.adventure.webui.websocket.Response
@@ -323,6 +325,20 @@ public fun mainLoaded() {
         }
     )
 
+    var inGamePreviewKey = (1..8).map { "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789".random() }.joinToString("")
+    document.getElementById("in-game-preview-button")!!.addEventListener(
+        "click",
+        {
+            window.postPacket(
+                "$URL_API$URL_IN_GAME_PREVIEW",
+                InGamePreview(miniMessage = input.value, key = inGamePreviewKey)
+            )
+                .then { response -> response.text() }
+                .then { text -> window.navigator.clipboard.writeText(text) }
+                .then { bulmaToast.toast("Minecraft Server Hostname copied to clipboard!") }
+        }
+    )
+
     // EDITOR
 
     // BURGER MENU

src/jvmMain/kotlin/net/kyori/adventure/webui/jvm/minimessage/MiniMessage.kt

@@ -26,12 +26,11 @@ import net.kyori.adventure.webui.Serializers
 import net.kyori.adventure.webui.URL_API
 import net.kyori.adventure.webui.URL_BUILD_INFO
 import net.kyori.adventure.webui.URL_EDITOR
+import net.kyori.adventure.webui.URL_IN_GAME_PREVIEW
 import net.kyori.adventure.webui.URL_MINI_SHORTEN
 import net.kyori.adventure.webui.URL_MINI_TO_HTML
 import net.kyori.adventure.webui.URL_MINI_TO_JSON
 import net.kyori.adventure.webui.URL_MINI_TO_TREE
-import net.kyori.adventure.webui.URL_SETUP_KICK_PREVIEW
-import net.kyori.adventure.webui.URL_SETUP_MOTD_PREVIEW
 import net.kyori.adventure.webui.jvm.appendComponent
 import net.kyori.adventure.webui.jvm.getConfigString
 import net.kyori.adventure.webui.jvm.minimessage.editor.installEditor
@@ -49,6 +48,7 @@ import net.kyori.adventure.webui.jvm.minimessage.storage.BytebinStorage
 import net.kyori.adventure.webui.tryDecodeFromString
 import net.kyori.adventure.webui.websocket.Call
 import net.kyori.adventure.webui.websocket.Combined
+import net.kyori.adventure.webui.websocket.InGamePreview
 import net.kyori.adventure.webui.websocket.Packet
 import net.kyori.adventure.webui.websocket.ParseResult
 import net.kyori.adventure.webui.websocket.Placeholders
@@ -205,16 +205,14 @@ public fun Application.miniMessage() {
                 }
             }
 
-            post(URL_SETUP_MOTD_PREVIEW) {
-                val input = call.receiveText()
-                val hostname = previewManager.initializeMotdPreview(input)
-                call.respondText(hostname)
-            }
-
-            post(URL_SETUP_KICK_PREVIEW) {
-                val input = call.receiveText()
-                val hostname = previewManager.initializeKickPreview(input)
-                call.respondText(hostname)
+            post(URL_IN_GAME_PREVIEW) {
+                val request = Serializers.json.tryDecodeFromString<InGamePreview>(call.receiveText())
+                if (request != null && request.miniMessage != null && request.key != null) {
+                    val hostname = previewManager.initializePreview(request.miniMessage, request.key)
+                    call.respondText(hostname)
+                } else {
+                    call.response.status(HttpStatusCode.BadRequest)
+                }
             }
 
             get(URL_BUILD_INFO) {

src/jvmMain/kotlin/net/kyori/adventure/webui/jvm/minimessage/preview/ServerStatusPreviewManager.kt

@@ -36,8 +36,7 @@ public class ServerStatusPreviewManager(
     private val managerJob = SupervisorJob(application.coroutineContext.job)
     override val coroutineContext: CoroutineContext = application.coroutineContext + managerJob
 
-    private val motdPreviews = Cache.Builder<String, String>().expireAfterAccess(1.hours).build()
-    private val kickPreviews = Cache.Builder<String, String>().expireAfterAccess(1.hours).build()
+    private val previews = Cache.Builder<String, String>().expireAfterAccess(1.hours).build()
 
     init {
         launch {
@@ -110,32 +109,18 @@ public class ServerStatusPreviewManager(
     }
 
     private fun lookupKickMessage(serverAddress: String): String {
-        return kickPreviews.get(serverAddress.split(".")[0]) ?: "<red>You cant join here!"
+        return previews.get(serverAddress.split(".")[0]) ?: "<red>You cant join here!"
     }
 
     private fun lookupMotd(serverAddress: String): String {
-        return motdPreviews.get(serverAddress.split(".")[0]) ?: "<rainbow>MiniMessage is cool!"
+        return previews.get(serverAddress.split(".")[0]) ?: "<rainbow>MiniMessage is cool!"
     }
 
-    public fun initializeKickPreview(input: String): String {
-        val key = generateRandomString()
-        kickPreviews.put(key, input)
+    public fun initializePreview(input: String, key: String): String {
+        previews.put(key, input)
         return "$key.webui.advntr.dev"
     }
 
-    public fun initializeMotdPreview(input: String): String {
-        val key = generateRandomString()
-        motdPreviews.put(key, input)
-        return "$key.webui.advntr.dev"
-    }
-
-    private fun generateRandomString(length: Int = 8): String {
-        val allowedChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
-        return (1..length)
-            .map { allowedChars.random() }
-            .joinToString("")
-    }
-
     private suspend fun ByteWriteChannel.writeMcPacket(packetId: Int, consumer: (packet: DataOutputStream) -> Unit) {
         val stream = ByteArrayOutputStream()
         val packet = DataOutputStream(stream)