feat(webUI): simple command invocation (no arguments)

Refs: #9

src/main/java/ru/ewc/checklogic/LogicChecker.java

@@ -45,6 +45,7 @@
 import org.assertj.core.api.Assertions;
 import org.assertj.core.api.SoftAssertions;
 import org.yaml.snakeyaml.Yaml;
+import ru.ewc.checklogic.server.CommandPage;
 import ru.ewc.checklogic.server.StatePage;
 import ru.ewc.commands.CommandsFacade;
 import ru.ewc.decisions.api.DecitaFacade;
@@ -71,6 +72,7 @@ private LogicChecker() {
         // Utility class
     }
 
+    // @todo #20 Implement a registry of pages and their endpoints
     public static void main(final String[] args) {
         if (args.length == 0) {
             throw new IllegalArgumentException("Please provide the path to the resources");
@@ -91,6 +93,8 @@ public static void main(final String[] args) {
             final WebFramework web = minum.getWebFramework();
             final StatePage state = new StatePage(initial);
             web.registerPath(RequestLine.Method.GET, "", state::statePage);
+            final CommandPage command = new CommandPage(initial);
+            web.registerPath(RequestLine.Method.POST, "command", command::commandPage);
             minum.block();
         } else {
             System.setProperty("sources", root);

src/main/java/ru/ewc/checklogic/server/CommandPage.java

@@ -0,0 +1,58 @@
+/*
+ * MIT License
+ *
+ * Copyright (c) 2024 Decision-Driven Development
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package ru.ewc.checklogic.server;
+
+import com.renomad.minum.web.Request;
+import com.renomad.minum.web.Response;
+import java.util.Map;
+import ru.ewc.checklogic.Computation;
+import ru.ewc.checklogic.Transition;
+import ru.ewc.decisions.api.Locators;
+
+/**
+ * I am a configuration object for all the command-related endpoints.
+ *
+ * @since 0.3.0
+ */
+public final class CommandPage {
+    /**
+     * The computation to be used for the command processing.
+     */
+    private final Computation computation;
+
+    /**
+     * Ctor.
+     *
+     * @param computation The computation to be used for the command processing.
+     */
+    public CommandPage(final Computation computation) {
+        this.computation = computation;
+    }
+
+    public Response commandPage(final Request request) {
+        final String command = request.body().asString("command");
+        this.computation.perform(new Transition(command, new Locators(Map.of())));
+        return Response.redirectTo("/");
+    }
+}

src/main/java/ru/ewc/checklogic/server/StatePage.java

@@ -34,8 +34,6 @@
 import java.util.Map;
 import java.util.stream.Collectors;
 import ru.ewc.checklogic.Computation;
-import ru.ewc.checklogic.Transition;
-import ru.ewc.decisions.api.Locators;
 
 /**
  * I am the configuration and logic for the state web page.
@@ -64,7 +62,6 @@ public StatePage(final Computation computation) {
     // @todo #9 Get a modal with command description and parameters on button click
     // @todo #9 Implement an endpoint to run a command
     public Response statePage(final Request request) {
-        this.computation.perform(new Transition("initialize", new Locators(Map.of())));
         final StoredState stored = new StoredState(this.computation.storedState());
         return Response.htmlOk(this.template.renderTemplate(Map.of("state", stored.asHtmlList())));
     }

src/main/resources/templates/state.html

@@ -29,5 +29,9 @@
 <body>
 <h1>State entities</h1>
 {{ state }}
+<form method="post" action="/command">
+    <input type="hidden" name="command" value="initialize">
+    <input type="submit" value="Initialize">
+</form>
 </body>
 </html>