Replace unlike ajax page with Kotlin version

diff --git a/src/main/java/net/pterodactylus/sone/web/ajax/UnlikeAjaxPage.java b/src/main/java/net/pterodactylus/sone/web/ajax/UnlikeAjaxPage.java
deleted file mode 100644 (file)
index a527b94..0000000
--- a/src/main/java/net/pterodactylus/sone/web/ajax/UnlikeAjaxPage.java
+++ /dev/null
@@ -1,67 +0,0 @@
-/*
- * Sone - UnlikeAjaxPage.java - Copyright © 2010–2016 David Roden
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package net.pterodactylus.sone.web.ajax;
-
-import javax.annotation.Nonnull;
-
-import net.pterodactylus.sone.data.Post;
-import net.pterodactylus.sone.data.Sone;
-import net.pterodactylus.sone.web.WebInterface;
-import net.pterodactylus.sone.web.page.FreenetRequest;
-
-/**
- * AJAX page that lets the user unlike a {@link Post}.
- *
- * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
- */
-public class UnlikeAjaxPage extends LoggedInJsonPage {
-
-       /**
-        * Creates a new “unlike post” AJAX page.
-        *
-        * @param webInterface
-        *            The Sone web interface
-        */
-       public UnlikeAjaxPage(WebInterface webInterface) {
-               super("unlike.ajax", webInterface);
-       }
-
-       /**
-        * {@inheritDoc}
-        */
-       @Nonnull
-       @Override
-       protected JsonReturnObject createJsonObject(@Nonnull Sone currentSone, @Nonnull FreenetRequest request) {
-               String type = request.getHttpRequest().getParam("type", null);
-               String id = request.getHttpRequest().getParam(type, null);
-               if ((id == null) || (id.length() == 0)) {
-                       return createErrorJsonObject("invalid-" + type + "-id");
-               }
-               if ("post".equals(type)) {
-                       currentSone.removeLikedPostId(id);
-                       webInterface.getCore().touchConfiguration();
-               } else if ("reply".equals(type)) {
-                       currentSone.removeLikedReplyId(id);
-                       webInterface.getCore().touchConfiguration();
-               } else {
-                       return createErrorJsonObject("invalid-type");
-               }
-               return createSuccessJsonObject();
-       }
-
-}

diff --git a/src/main/kotlin/net/pterodactylus/sone/web/ajax/UnlikeAjaxPage.kt b/src/main/kotlin/net/pterodactylus/sone/web/ajax/UnlikeAjaxPage.kt
new file mode 100644 (file)
index 0000000..c4ec236
--- /dev/null
+++ b/src/main/kotlin/net/pterodactylus/sone/web/ajax/UnlikeAjaxPage.kt
@@ -0,0 +1,27 @@
+package net.pterodactylus.sone.web.ajax
+
+import net.pterodactylus.sone.data.Sone
+import net.pterodactylus.sone.utils.emptyToNull
+import net.pterodactylus.sone.utils.parameters
+import net.pterodactylus.sone.web.WebInterface
+import net.pterodactylus.sone.web.page.FreenetRequest
+
+/**
+ * AJAX page that lets the user unlike a [net.pterodactylus.sone.data.Post].
+ */
+class UnlikeAjaxPage(webInterface: WebInterface) : LoggedInJsonPage("unlike.ajax", webInterface) {
+
+       override fun createJsonObject(currentSone: Sone, request: FreenetRequest) = when (request.parameters["type"]) {
+               "post" -> request.processEntity("post", currentSone::removeLikedPostId)
+               "reply" -> request.processEntity("reply", currentSone::removeLikedReplyId)
+               else -> createErrorJsonObject("invalid-type")
+       }
+
+       private fun FreenetRequest.processEntity(entity: String, likeRemover: (String) -> Unit) =
+                       parameters[entity].emptyToNull
+                                       ?.also(likeRemover)
+                                       ?.also { webInterface.core.touchConfiguration() }
+                                       ?.let { createSuccessJsonObject() }
+                                       ?: createErrorJsonObject("invalid-$entity-id")
+
+}