feat: implement interactive lesson management and update command handling

src/controller/input.rs

@@ -69,6 +69,70 @@ pub fn handle_key(key: KeyEvent, state: &mut AppStateRest) -> Vec<Action> {
         }
     }
 
+    if state.misc.overlay == Overlay::Learning {
+        match key.code {
+            KeyCode::Char('c') if key.modifiers.contains(KeyModifiers::CONTROL) => {
+                return vec![Action::QuitConfirm];
+            }
+            KeyCode::Esc => {
+                return vec![Action::CloseOverlay];
+            }
+            KeyCode::Up => {
+                let items = crate::app::mode::learning::get_learning_items(state);
+                let n = items.len();
+                state.misc.selected_index = if state.misc.selected_index == 0 { n.saturating_sub(1) } else { state.misc.selected_index - 1 };
+                state.dirty = true;
+                return vec![];
+            }
+            KeyCode::Down => {
+                let items = crate::app::mode::learning::get_learning_items(state);
+                let n = items.len();
+                state.misc.selected_index = if n == 0 { 0 } else { (state.misc.selected_index + 1) % n };
+                state.dirty = true;
+                return vec![];
+            }
+            KeyCode::Enter | KeyCode::Char('a') => {
+                let items = crate::app::mode::learning::get_learning_items(state);
+                if let Some(item) = items.get(state.misc.selected_index) {
+                    match item {
+                        crate::app::mode::learning::LearningItem::Pending { name, .. } => {
+                            return vec![Action::LessonAccept { name: name.clone() }];
+                        }
+                        _ => {}
+                    }
+                }
+                return vec![];
+            }
+            KeyCode::Char('r') => {
+                let items = crate::app::mode::learning::get_learning_items(state);
+                if let Some(item) = items.get(state.misc.selected_index) {
+                    match item {
+                        crate::app::mode::learning::LearningItem::Pending { name, .. } => {
+                            return vec![Action::LessonReject { name: name.clone() }];
+                        }
+                        _ => {}
+                    }
+                }
+                return vec![];
+            }
+            KeyCode::Char('d') | KeyCode::Delete | KeyCode::Backspace => {
+                let items = crate::app::mode::learning::get_learning_items(state);
+                if let Some(item) = items.get(state.misc.selected_index) {
+                    match item {
+                        crate::app::mode::learning::LearningItem::Pending { name, .. } => {
+                            return vec![Action::LessonReject { name: name.clone() }];
+                        }
+                        crate::app::mode::learning::LearningItem::Stored { name, .. } => {
+                            return vec![Action::LessonDelete { name: name.clone() }];
+                        }
+                    }
+                }
+                return vec![];
+            }
+            _ => return vec![],
+        }
+    }
+
     match key.code {
         KeyCode::Char('c') if key.modifiers.contains(KeyModifiers::CONTROL) => {
             vec![Action::QuitConfirm]