html exporter fixed

state_machine_exporter_html/src/main/java/click/kamil/springstatemachineexporter/html/command/HtmlExporterCommand.java

@@ -56,6 +56,9 @@ public class HtmlExporterCommand implements Callable<Integer> {
     @Option(names = {"--no-diamonds"}, description = "Disable rendering choice pseudostates as PlantUML diamonds (render them as normal state nodes instead).")
     private boolean noDiamonds;
 
+    @Option(names = {"--no-metadata-pane"}, description = "Disable rendering the left metadata pane (entry points, flows) in the HTML viewer.")
+    private boolean noMetadataPane;
+
     @Override
     public Integer call() throws Exception {
         var out = spec.commandLine().getOut();
@@ -78,12 +81,17 @@ public class HtmlExporterCommand implements Callable<Integer> {
             List<String> formats = List.of("html", "json");
             List<String> profiles = activeProfiles != null ? activeProfiles : java.util.Collections.emptyList();
             
+            if (noMetadataPane) {
+                System.setProperty("html.hideMetadataPane", "true");
+            }
+            
             if (jsonFile != null) {
                 exportService.runJsonExporter(jsonFile, outputDir, formats, profiles);
             } else {
                 boolean renderChoicesAsDiamonds = !noDiamonds;
                 exportService.runExporter(inputDir, outputDir, formats, renderChoicesAsDiamonds, profiles, flowsFile, machineFilter);
             }
+            System.clearProperty("html.hideMetadataPane");
 
             out.println(CommandLine.Help.Ansi.AUTO.string("%n@|bold,green SUCCESS:|@ Interactive documentation generated successfully."));
             

state_machine_exporter_html/src/main/java/click/kamil/springstatemachineexporter/html/exporter/HtmlExporter.java

@@ -56,12 +56,51 @@ public class HtmlExporter implements StateMachineExporter {
             // 5. Prepare Metadata JSON
             String metadataJson = objectMapper.writeValueAsString(result);
 
+            // Check if we should render metadata pane
+            boolean hideMetadataProp = Boolean.getBoolean("html.hideMetadataPane");
+            boolean hasEntryPoints = result.getMetadata() != null && result.getMetadata().getEntryPoints() != null && !result.getMetadata().getEntryPoints().isEmpty();
+            boolean hasFlows = result.getFlows() != null && !result.getFlows().isEmpty();
+            boolean shouldRenderPane = !hideMetadataProp && options.isIncludeMetadataPane() && (hasEntryPoints || hasFlows);
+
             // 6. Inject Data
-            return template
+            String finalHtml = template
                     .replace("{{MACHINE_NAME}}", result.getName())
                     .replace("{{SVG_CONTENT}}", decoratedSvg)
                     .replace("{{METADATA_JSON}}", metadataJson);
 
+            if (shouldRenderPane) {
+                // If template.html uses {{SIDEBAR_HTML}} and {{TOGGLE_BUTTON_HTML}}, replace with actual HTML
+                finalHtml = finalHtml.replace("{{SIDEBAR_HTML}}", "<div id=\"sidebar\">\n" +
+                        "    <div class=\"sidebar-header\">\n" +
+                        "        <header>\n" +
+                        "            <h1>Explorer</h1>\n" +
+                        "            <p>{{MACHINE_NAME}}</p>\n" +
+                        "        </header>\n" +
+                        "    </div>\n" +
+                        "    \n" +
+                        "    <div class=\"tabs\">\n" +
+                        "        <div class=\"tab active\" data-tab=\"explorer\">Explorer</div>\n" +
+                        "        <div class=\"tab\" data-tab=\"flows\">Business Flows</div>\n" +
+                        "    </div>\n" +
+                        "\n" +
+                        "    <div id=\"tab-explorer\" class=\"tab-content active\">\n" +
+                        "        <div id=\"ep-list\"></div>\n" +
+                        "    </div>\n" +
+                        "\n" +
+                        "    <div id=\"tab-flows\" class=\"tab-content\">\n" +
+                        "        <div id=\"flow-list\"></div>\n" +
+                        "    </div>\n" +
+                        "</div>").replace("{{MACHINE_NAME}}", result.getName());
+                
+                finalHtml = finalHtml.replace("{{TOGGLE_BUTTON_HTML}}", "    <button id=\"toggle-sidebar\" aria-label=\"Toggle Sidebar\" title=\"Toggle Sidebar\">\n" +
+                        "        <svg viewBox=\"0 0 24 24\"><path d=\"M4 6h16M4 12h16M4 18h16\"></path></svg>\n" +
+                        "    </button>");
+            } else {
+                finalHtml = finalHtml.replace("{{SIDEBAR_HTML}}", "").replace("{{TOGGLE_BUTTON_HTML}}", "");
+            }
+
+            return finalHtml;
+
         } catch (Exception e) {
             log.error("Failed to export to HTML", e);
             throw new RuntimeException("HTML export failed", e);

state_machine_exporter_html/src/main/resources/html/template.html

@@ -261,32 +261,10 @@
 </head>
 <body>
 
-<div id="sidebar">
-    <div class="sidebar-header">
-        <header>
-            <h1>Explorer</h1>
-            <p>{{MACHINE_NAME}}</p>
-        </header>
-    </div>
-    
-    <div class="tabs">
-        <div class="tab active" data-tab="explorer">Explorer</div>
-        <div class="tab" data-tab="flows">Business Flows</div>
-    </div>
-
-    <div id="tab-explorer" class="tab-content active">
-        <div id="ep-list"></div>
-    </div>
-
-    <div id="tab-flows" class="tab-content">
-        <div id="flow-list"></div>
-    </div>
-</div>
+{{SIDEBAR_HTML}}
 
 <div id="main">
-    <button id="toggle-sidebar" aria-label="Toggle Sidebar" title="Toggle Sidebar">
-        <svg viewBox="0 0 24 24"><path d="M4 6h16M4 12h16M4 18h16"></path></svg>
-    </button>
+    {{TOGGLE_BUTTON_HTML}}
     <div id="svg-container">
         {{SVG_CONTENT}}
     </div>
@@ -304,18 +282,21 @@
         const svg = document.querySelector('#svg-container svg');
         panZoomInstance = svgPanZoom(svg, { zoomEnabled: true, controlIconsEnabled: true, fit: true, center: true });
 
-        document.getElementById('toggle-sidebar').addEventListener('click', () => {
-            const sidebar = document.getElementById('sidebar');
-            sidebar.classList.toggle('collapsed');
-            
-            // Re-center SVG pan-zoom after transition
-            setTimeout(() => {
-                if (panZoomInstance) {
-                    panZoomInstance.resize();
-                    panZoomInstance.center();
-                }
-            }, 300);
-        });
+        const toggleSidebar = document.getElementById('toggle-sidebar');
+        if (toggleSidebar) {
+            toggleSidebar.addEventListener('click', () => {
+                const sidebar = document.getElementById('sidebar');
+                if (sidebar) sidebar.classList.toggle('collapsed');
+                
+                // Re-center SVG pan-zoom after transition
+                setTimeout(() => {
+                    if (panZoomInstance) {
+                        panZoomInstance.resize();
+                        panZoomInstance.center();
+                    }
+                }, 300);
+            });
+        }
 
         setupTabs();
         populateSidebar();
@@ -325,8 +306,10 @@
 
     function setupTabs() {
         const flows = metadata.flows || [];
+        const tabsEl = document.querySelector('.tabs');
+        if (!tabsEl) return;
         if (flows.length === 0) {
-            document.querySelector('.tabs').style.display = 'none';
+            tabsEl.style.display = 'none';
             document.querySelector('.tab-content[data-tab="flows"]')?.remove();
             return;
         }
@@ -342,6 +325,7 @@
 
     function populateSidebar() {
         const list = document.getElementById('ep-list');
+        if (!list) return;
         const entryPoints = metadata.metadata.entryPoints || [];
         const machineEvents = new Set(metadata.transitions.map(t => t.event).filter(Boolean));
         
@@ -372,6 +356,7 @@
 
     function populateFlows() {
         const list = document.getElementById('flow-list');
+        if (!list) return;
         const flows = metadata.flows || [];
         
         if (flows.length === 0) {