Update source/src/templates.cpp

source/src/templates.cpp

@@ -125,6 +125,14 @@
 
     bool template_source_registry::has_template(const std::string& template_name)
     {
+        // First check if we have it cached
+        std::filesystem::path cache_dir = get_cache_dir();
+        std::filesystem::path template_cache_dir = cache_dir / template_name;
+        if (std::filesystem::exists(template_cache_dir)) {
+            // We have it cached, so return true
+            return true;
+        }
+        
         // Check if template exists in registry
         std::string check_url = mRegistry.url + "/exists/" + template_name + ":latest";
         
@@ -143,10 +151,14 @@
                         file >> json_response;
                         file.close();
                     }
-                } catch (...) {
+                } catch (const std::exception& e) {
-                    // Failed to parse JSON
+                    warning << "Failed to parse JSON response from " << check_url << ": " << e.what() << std::endl;
                 }
                 std::filesystem::remove(temp_file);
+            } else {
+                // curl failed - might be network issue or server down
+                // Check cache as fallback
+                return std::filesystem::exists(template_cache_dir);
             }
         } else {
             json_response = get_json_from_url(check_url);
@@ -156,16 +168,12 @@
             return json_response["exists"].get<bool>();
         }
         
-        return false;
+        // If registry check failed but we have cache, use cache
+        return std::filesystem::exists(template_cache_dir);
     }
 
     template_info template_source_registry::get_template_info(const std::string& template_name)
     {
-        // Check if template exists in registry
-        if (!has_template(template_name)) {
-            return template_info();
-        }
-        
         // Get cache directory
         std::filesystem::path cache_dir = get_cache_dir();
         std::filesystem::path template_cache_dir = cache_dir / template_name;
@@ -176,6 +184,14 @@
             std::filesystem::create_directories(cache_dir);
         }
         
+        // If we have a cached version and can't reach the registry, use the cache
+        bool have_cache = std::filesystem::exists(template_cache_dir) && std::filesystem::exists(template_json_file);
+        
+        // Check if template exists (in cache or registry)
+        if (!has_template(template_name)) {
+            return template_info();
+        }
+        
         // Get metadata from registry to check version
         std::string meta_url = mRegistry.url + "/meta/" + template_name + ":latest";
         
@@ -204,6 +220,15 @@
         }
         
         if (registry_metadata.is_null()) {
+            // If we can't get metadata from registry but have cache, use cache
+            if (have_cache) {
+                info << "Registry unavailable, using cached template: " << template_name << std::endl;
+                return template_info(
+                    template_name,
+                    "Registry: " + mRegistry.name + " (cached)",
+                    template_cache_dir
+                );
+            }
             warning << "Failed to get metadata for template: " << template_name << std::endl;
             return template_info();
         }