error handling if invalid url

Author: runyuany

wami/app.js

@@ -462,11 +462,21 @@ async function processShareTargetData() {
     // Determine flow configuration from share data
     const { flowTitle, flowSteps } = determineFlowConfiguration(shareData);
 
-    // Create or navigate to the flow
-    const targetFlow = await createOrNavigateToFlow(flowTitle, flowSteps);
-    
-    // Load and process the shared images
-    await loadAndProcessSharedImages(shareCache, shareData);
+    // If no valid command was found, create an empty flow
+    if (flowTitle === null || flowSteps === null) {
+      console.log('Creating empty flow due to invalid URL command');
+      // Create a new untitled flow with no steps
+      const newFlow = await createNewFlow('Untitled flow', []);
+
+      // Load the images without auto-processing
+      await loadAndProcessSharedImages(shareCache, shareData, false);
+    } else {
+      // Create or navigate to the flow with the specified steps
+      const targetFlow = await createOrNavigateToFlow(flowTitle, flowSteps);
+      
+      // Load and process the shared images
+      await loadAndProcessSharedImages(shareCache, shareData, true);
+    }
 
     // Clean up cache after processing
     await cleanupShareCache(shareCache, shareData);
@@ -480,14 +490,9 @@ async function processShareTargetData() {
 
 // Determines the flow configuration (title and steps) based on shared data
 function determineFlowConfiguration(shareData) {
-  // Default flow title and steps
+  // Default flow title and steps - only used if no URL is provided
   let flowTitle = shareData.title || 'Shared Images Flow';
-  let flowSteps = [
-    {
-      type: 'resize-width-if-larger',
-      params: [1000]
-    }
-  ];
+  let flowSteps = null;
 
   // If URL field exists and starts with web+wami://, use it for configuration
   if (shareData.url && shareData.url.trim() !== '') {
@@ -499,10 +504,24 @@ function determineFlowConfiguration(shareData) {
       if (result) {
         flowTitle = result.title;
         flowSteps = result.steps;
+      } else {
+        // If URL parsing failed, return null to indicate we should stay on launch page
+        console.log('Invalid command URL, will not process images');
+        return { flowTitle: null, flowSteps: null };
       }
     }
   }
 
+  // If no web+wami URL was provided, use these default steps
+  if (flowSteps === null) {
+    flowSteps = [
+      {
+        type: 'resize-width-if-larger',
+        params: [1000]
+      }
+    ];
+  }
+  
   return { flowTitle, flowSteps };
 }
 
@@ -549,8 +568,9 @@ function parseWebWamiUrl(url) {
     console.log(`Creating resize flow with width ${width}`);
     steps = [{ type: 'resize-width-if-larger', params: [width] }];
   } else {
-    // Default to resize-width-if-larger
-    steps = [{ type: 'resize-width-if-larger', params: [1000] }];
+    // If no recognized command is found, return null instead of using default steps
+    console.log(`No recognized command found in URL: ${mainCommand}`);
+    return null;
   }
 
   return { title, steps };
@@ -598,7 +618,7 @@ async function createOrNavigateToFlow(flowTitle, flowSteps) {
 }
 
 // Loads shared images from the cache and processes them if needed
-async function loadAndProcessSharedImages(shareCache, shareData) {
+async function loadAndProcessSharedImages(shareCache, shareData, shouldAutoProcess = true) {
   const imagesToStore = [];
 
   // Load the shared files from cache
@@ -637,13 +657,14 @@ async function loadAndProcessSharedImages(shareCache, shareData) {
       return { src: URL.createObjectURL(image.file), name: image.file.name };
     }));
 
-    // Automatically run the flow
-    const shouldAutoProcess = true;
+    // Automatically run the flow only if requested
     if (shouldAutoProcess) {
       console.log('Auto-processing images...');
       setTimeout(() => {
         runFlowButton.click();
       }, 500);
+    } else {
+      console.log('Images loaded but not auto-processing due to invalid command');
     }
   }
 }