frontend: Rework Dependencies view

bottles/frontend/details_dependencies_view.py

@@ -15,7 +15,11 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 
-import time
+import pycurl
+
+from io import BytesIO
+
+from bottles.backend.utils import yaml
 
 from gi.repository import Gtk, GLib, Adw
 
@@ -110,27 +114,36 @@ def new_dependency(dependency, plain=False):
             self.list_dependencies.append(entry)
 
         @GtkUtils.run_in_main_loop
-        def callback(_result, _error=False):
-            self.stack.set_visible_child_name("page_deps")
+        def callback(result, *_args):
+            if result is not False:
+                self.stack.set_visible_child_name("page_deps")
+            else:
+                self.stack.set_visible_child_name("page_offline")
 
         def process_dependencies():
-            time.sleep(0.3)  # workaround for freezing bug on bottle load
-            EventManager.wait(Events.DependenciesOrganizing)
-            dependencies = self.manager.supported_dependencies
+            self.manager.supported_dependencies
+
+            buffer = BytesIO()
+
+            curl = pycurl.Curl()
+            curl.setopt(
+                curl.URL, "https://proxy.usebottles.com/repo/dependencies/index.yml"
+            )
+            curl.setopt(curl.FOLLOWLOCATION, True)
+            curl.setopt(curl.WRITEDATA, buffer)
 
-            GLib.idle_add(self.empty_list)
+            try:
+                curl.perform()
+            except pycurl.error:
+                curl.close()
+                return False
 
-            if len(dependencies.keys()) > 0:
-                for dep in dependencies.items():
-                    if dep[0] in self.config.Installed_Dependencies:
-                        continue  # Do not list already installed dependencies
+            curl.close()
 
-                    GLib.idle_add(new_dependency, dep)
+            index = yaml.load(buffer.getvalue())
 
-            if len(self.config.Installed_Dependencies) > 0:
-                for dep in self.config.Installed_Dependencies:
-                    if dep in dependencies:
-                        dep = (dep, dependencies[dep])
-                        GLib.idle_add(new_dependency, dep, plain=True)
+            for dependency in sorted(index.items()):
+                is_installed = dependency[0] in self.config.Installed_Dependencies
+                GLib.idle_add(new_dependency, dependency, plain=is_installed)
 
         RunAsync(process_dependencies, callback=callback)