fix: 通过 cf / mr 直接安装整合包页面返回有一个多余整合包安装选择页面 (#5556)

Co-authored-by: Glavo <zjx001202@gmail.com>

Author: CiiLu

HMCL/src/main/java/org/jackhuang/hmcl/ui/download/ModpackInstallWizardProvider.java

@@ -145,20 +145,31 @@ public Object finish(SettingsMap settings) {
         return finishModpackInstallingAsync(settings);
     }
 
+    private static Node createModpackInstallPage(WizardController controller) {
+        if (controller.getSettings().containsKey(LocalModpackPage.MODPACK_FILE))
+            return new LocalModpackPage(controller);
+        else if (controller.getSettings().containsKey(RemoteModpackPage.MODPACK_SERVER_MANIFEST))
+            return new RemoteModpackPage(controller);
+        else
+            throw new IllegalArgumentException();
+    }
+
     @Override
     public Node createPage(WizardController controller, int step, SettingsMap settings) {
-        switch (step) {
-            case 0:
-                return new ModpackSelectionPage(controller);
-            case 1:
-                if (controller.getSettings().containsKey(LocalModpackPage.MODPACK_FILE))
-                    return new LocalModpackPage(controller);
-                else if (controller.getSettings().containsKey(RemoteModpackPage.MODPACK_SERVER_MANIFEST))
-                    return new RemoteModpackPage(controller);
-                else
-                    throw new IllegalArgumentException();
-            default:
-                throw new IllegalStateException("error step " + step + ", settings: " + settings + ", pages: " + controller.getPages());
+        boolean hasSource = controller.getSettings().containsKey(LocalModpackPage.MODPACK_FILE) || settings.containsKey(RemoteModpackPage.MODPACK_SERVER_MANIFEST);
+        if (hasSource) {
+            return switch (step) {
+                case 0 -> createModpackInstallPage(controller);
+                default -> throw new IllegalStateException(
+                        "error step " + step + ", settings: " + settings + ", pages: " + controller.getPages());
+            };
+        } else {
+            return switch (step) {
+                case 0 -> new ModpackSelectionPage(controller);
+                case 1 -> createModpackInstallPage(controller);
+                default -> throw new IllegalStateException(
+                        "error step " + step + ", settings: " + settings + ", pages: " + controller.getPages());
+            };
         }
     }