Refactored the UI module and the handlers module to do a more chain-of-responsibility method to manage the UI's and handlers for different key events. Also, initial work for indexer settings as well

src/handlers/radarr_handlers/indexers/mod.rs

@@ -0,0 +1,148 @@
+use crate::app::key_binding::DEFAULT_KEYBINDINGS;
+use crate::app::radarr::{ActiveRadarrBlock, INDEXERS_BLOCKS, INDEXER_SETTINGS_SELECTION_BLOCKS};
+use crate::app::App;
+use crate::event::Key;
+use crate::handlers::radarr_handlers::handle_change_tab_left_right_keys;
+use crate::handlers::radarr_handlers::indexers::edit_indexer_settings_handler::IndexerSettingsHandler;
+use crate::handlers::{handle_clear_errors, handle_prompt_toggle, KeyEventHandler};
+use crate::models::{BlockSelectionState, Scrollable};
+use crate::network::radarr_network::RadarrEvent;
+
+mod edit_indexer_settings_handler;
+
+#[cfg(test)]
+#[path = "indexers_handler_tests.rs"]
+mod indexers_handler_tests;
+
+pub(super) struct IndexersHandler<'a, 'b> {
+  key: &'a Key,
+  app: &'a mut App<'b>,
+  active_radarr_block: &'a ActiveRadarrBlock,
+  context: &'a Option<ActiveRadarrBlock>,
+}
+
+impl<'a, 'b> KeyEventHandler<'a, 'b, ActiveRadarrBlock> for IndexersHandler<'a, 'b> {
+  fn handle(&mut self) {
+    match self.active_radarr_block {
+      _ if IndexerSettingsHandler::accepts(self.active_radarr_block) => {
+        IndexerSettingsHandler::with(self.key, self.app, self.active_radarr_block, self.context)
+          .handle()
+      }
+      _ => self.handle_key_event(),
+    }
+  }
+
+  fn accepts(active_block: &'a ActiveRadarrBlock) -> bool {
+    IndexerSettingsHandler::accepts(active_block) || INDEXERS_BLOCKS.contains(active_block)
+  }
+
+  fn with(
+    key: &'a Key,
+    app: &'a mut App<'b>,
+    active_block: &'a ActiveRadarrBlock,
+    context: &'a Option<ActiveRadarrBlock>,
+  ) -> IndexersHandler<'a, 'b> {
+    IndexersHandler {
+      key,
+      app,
+      active_radarr_block: active_block,
+      context,
+    }
+  }
+
+  fn get_key(&self) -> &Key {
+    self.key
+  }
+
+  fn handle_scroll_up(&mut self) {
+    if self.active_radarr_block == &ActiveRadarrBlock::Indexers {
+      self.app.data.radarr_data.indexers.scroll_up();
+    }
+  }
+
+  fn handle_scroll_down(&mut self) {
+    if self.active_radarr_block == &ActiveRadarrBlock::Indexers {
+      self.app.data.radarr_data.indexers.scroll_down();
+    }
+  }
+
+  fn handle_home(&mut self) {
+    if self.active_radarr_block == &ActiveRadarrBlock::Indexers {
+      self.app.data.radarr_data.indexers.scroll_to_top();
+    }
+  }
+
+  fn handle_end(&mut self) {
+    if self.active_radarr_block == &ActiveRadarrBlock::Indexers {
+      self.app.data.radarr_data.indexers.scroll_to_bottom();
+    }
+  }
+
+  fn handle_delete(&mut self) {
+    if self.active_radarr_block == &ActiveRadarrBlock::Indexers {
+      self
+        .app
+        .push_navigation_stack(ActiveRadarrBlock::DeleteIndexerPrompt.into());
+    }
+  }
+
+  fn handle_left_right_action(&mut self) {
+    match self.active_radarr_block {
+      ActiveRadarrBlock::Indexers => handle_change_tab_left_right_keys(self.app, self.key),
+      ActiveRadarrBlock::DeleteIndexerPrompt => handle_prompt_toggle(self.app, self.key),
+      _ => (),
+    }
+  }
+
+  fn handle_submit(&mut self) {
+    match self.active_radarr_block {
+      ActiveRadarrBlock::DeleteIndexerPrompt => {
+        if self.app.data.radarr_data.prompt_confirm {
+          self.app.data.radarr_data.prompt_confirm_action = Some(RadarrEvent::DeleteIndexer);
+        }
+
+        self.app.pop_navigation_stack();
+      }
+      ActiveRadarrBlock::Indexers => {
+        self
+          .app
+          .push_navigation_stack(ActiveRadarrBlock::EditIndexer.into());
+      }
+      _ => (),
+    }
+  }
+
+  fn handle_esc(&mut self) {
+    match self.active_radarr_block {
+      ActiveRadarrBlock::DeleteIndexerPrompt => {
+        self.app.pop_navigation_stack();
+        self.app.data.radarr_data.prompt_confirm = false;
+      }
+      _ => handle_clear_errors(self.app),
+    }
+  }
+
+  fn handle_char_key_event(&mut self) {
+    let key = self.key;
+    if self.active_radarr_block == &ActiveRadarrBlock::Indexers {
+      match self.key {
+        _ if *key == DEFAULT_KEYBINDINGS.add.key => {
+          self
+            .app
+            .push_navigation_stack(ActiveRadarrBlock::AddIndexer.into());
+        }
+        _ if *key == DEFAULT_KEYBINDINGS.refresh.key => {
+          self.app.should_refresh = true;
+        }
+        _ if *key == DEFAULT_KEYBINDINGS.settings.key => {
+          self
+            .app
+            .push_navigation_stack(ActiveRadarrBlock::IndexerSettingsPrompt.into());
+          self.app.data.radarr_data.selected_block =
+            BlockSelectionState::new(&INDEXER_SETTINGS_SELECTION_BLOCKS);
+        }
+        _ => (),
+      }
+    }
+  }
+}