Refactored table sorting into the ManagarrTable widget and StatefulTable so any and all tables created can support sorting with minimal UI changes and thus only need to focus on the handlers. I'm going to continue this effort tomorrow and look at what other widgets can be created to simplify things. Most likely, prompt boxes.

src/models/stateful_list.rs

@@ -0,0 +1,95 @@
+use crate::models::Scrollable;
+use ratatui::widgets::ListState;
+use std::fmt::Debug;
+
+#[cfg(test)]
+#[path = "stateful_list_tests.rs"]
+mod stateful_list_tests;
+
+#[derive(Default)]
+pub struct StatefulList<T> {
+  pub state: ListState,
+  pub items: Vec<T>,
+}
+
+impl<T> Scrollable for StatefulList<T> {
+  fn scroll_down(&mut self) {
+    if self.items.is_empty() {
+      return;
+    }
+
+    let selected_row = match self.state.selected() {
+      Some(i) => {
+        if i >= self.items.len() - 1 {
+          0
+        } else {
+          i + 1
+        }
+      }
+      None => 0,
+    };
+
+    self.state.select(Some(selected_row));
+  }
+
+  fn scroll_up(&mut self) {
+    if self.items.is_empty() {
+      return;
+    }
+
+    let selected_row = match self.state.selected() {
+      Some(i) => {
+        if i == 0 {
+          self.items.len() - 1
+        } else {
+          i - 1
+        }
+      }
+      None => 0,
+    };
+
+    self.state.select(Some(selected_row));
+  }
+
+  fn scroll_to_top(&mut self) {
+    if self.items.is_empty() {
+      return;
+    }
+
+    self.state.select(Some(0));
+  }
+
+  fn scroll_to_bottom(&mut self) {
+    if self.items.is_empty() {
+      return;
+    }
+
+    self.state.select(Some(self.items.len() - 1));
+  }
+}
+
+impl<T> StatefulList<T>
+where
+  T: Clone + PartialEq + Eq + Debug,
+{
+  pub fn set_items(&mut self, items: Vec<T>) {
+    let items_len = items.len();
+    self.items = items;
+    if !self.items.is_empty() {
+      let selected_row = self.state.selected().map_or(0, |i| {
+        if i > 0 && i < items_len {
+          i
+        } else if i >= items_len {
+          items_len - 1
+        } else {
+          0
+        }
+      });
+      self.state.select(Some(selected_row));
+    }
+  }
+
+  pub fn current_selection(&self) -> &T {
+    &self.items[self.state.selected().unwrap_or(0)]
+  }
+}