Inline Autocompletion Pt.2 (#333)

* Add first draft of inline code completion with mock text

* Adds InsertInlineTextAction for inserting autocomplete suggestion with tab

- Changed to disable suggestions when text is selected
- Adds and removes the insert action based on when it shows the inlay hint

* Request inline code completion

* Move inline completion prompt into txt file

* Add inline completion settings to ConfigurationState

* Fix code style

* Use EditorTrackerListener instead of EditorFactoryListener to enable inline completion

* Code completion requests synchronously without SSE

* Use LlamaClient.getInfill() for inline code completion

* support inlay block element rendering, clean up code

* Use only enclosed Method or Class contents for code completion if possible

* Refactor extracting PsiElement contents in code completion

* bump llm-client

* fix completion call from triggering on EDT, force method params to be nonnull by default

* refactor request building, decrease delay value

* Trigger code completion if cursor is not inside a word

* Improve inlay rendering

* Support cancellable infill requests

* add statusbar widget, disable completions by default

* Show error notification if code completion failed

* Truely disable/enable EditorInlayHandler when completion is turned off/on

* Add CodeCompletionEnabledListener Topic to control enabling/disabling code-completion

* Add progress indicator for code-completion with option to cancel

* Add CodeCompletionServiceTest + refactor inlay ElementRenderers

* several improvements

- replace timer implementation with call debouncing
- use OpenAI /v1/completions API for completions
- code refactoring

* trigger progress indicator only for llama completions

* fix tests

---------

Co-authored-by: James Higgins <james.isaac.higgins@gmail.com>
Co-authored-by: Carl-Robert Linnupuu <carlrobertoh@gmail.com>

src/main/java/ee/carlrobert/codegpt/statusbar/CodeGPTStatusBarWidget.java

@@ -0,0 +1,52 @@
+package ee.carlrobert.codegpt.statusbar;
+
+import com.intellij.openapi.actionSystem.ActionGroup;
+import com.intellij.openapi.actionSystem.ActionManager;
+import com.intellij.openapi.actionSystem.DataContext;
+import com.intellij.openapi.project.Project;
+import com.intellij.openapi.ui.popup.JBPopupFactory;
+import com.intellij.openapi.ui.popup.JBPopupFactory.ActionSelectionAid;
+import com.intellij.openapi.ui.popup.ListPopup;
+import com.intellij.openapi.vfs.VirtualFile;
+import com.intellij.openapi.wm.StatusBarWidget;
+import com.intellij.openapi.wm.impl.status.EditorBasedStatusBarPopup;
+import ee.carlrobert.codegpt.CodeGPTBundle;
+import ee.carlrobert.codegpt.Icons;
+import org.jetbrains.annotations.NonNls;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+public class CodeGPTStatusBarWidget extends EditorBasedStatusBarPopup {
+
+  public CodeGPTStatusBarWidget(Project project) {
+    super(project, false);
+  }
+
+  @Override
+  protected @NotNull WidgetState getWidgetState(@Nullable VirtualFile file) {
+    var state = new WidgetState(CodeGPTBundle.get("statusBar.widget.tooltip"), "", true);
+    state.setIcon(Icons.DefaultSmall);
+    return state;
+  }
+
+  @Override
+  protected @Nullable ListPopup createPopup(DataContext context) {
+    return JBPopupFactory.getInstance()
+        .createActionGroupPopup(
+            CodeGPTBundle.get("project.label"),
+            (ActionGroup) ActionManager.getInstance().getAction("codegpt.statusBarPopup"),
+            context,
+            ActionSelectionAid.SPEEDSEARCH,
+            true);
+  }
+
+  @Override
+  protected @NotNull StatusBarWidget createInstance(@NotNull Project project) {
+    return new CodeGPTStatusBarWidget(project);
+  }
+
+  @Override
+  public @NonNls @NotNull String ID() {
+    return "ee.carlrobert.codegpt.statusbar.widget";
+  }
+}