wip

src/tui/main.rs

@@ -1,10 +1,12 @@
 use std::{error::Error, process::exit, time::Duration};
 
+use crossterm::event::{self, Event, KeyCode};
 use data::{ArchivedData, Data};
 use ratatui::{
-    layout::{self, Constraint, Layout},
+    layout::{self, Constraint, Layout, Rect},
     prelude::Stylize,
-    widgets::{Block, Borders},
+    text::Text,
+    widgets::{Block, BorderType, Borders},
     Frame,
 };
 use rkyv::{deserialize, rancor};
@@ -16,7 +18,7 @@ struct Root {
     running_state: RunningState,
 }
 
-#[derive(Default, Debug)]
+#[derive(Default, Debug, PartialEq)]
 enum RunningState {
     #[default]
     Running,
@@ -33,18 +35,60 @@ enum Message {
 
 impl Root {
     fn view(&self, f: &mut Frame) {
-        let block = Block::new()
-            .border_type(ratatui::widgets::BorderType::Rounded)
-            .borders(Borders::ALL);
-        f.render_widget(block, f.area());
+        let text = Text::raw("Meow");
+        let block = Block::new().borders(Borders::ALL).title("Meow");
+        let flex_vert = Layout::vertical([Constraint::Fill(1)])
+            .flex(layout::Flex::Center)
+            .areas::<1>(f.area())[0];
+        let centered = flex_vert.centered_horizontally(Constraint::Length(50));
+        let full_center = ;
+        f.render_widget(block, centered);
+    }
+    fn handle_events() -> Result<Option<Message>, Box<dyn Error>> {
+        if event::poll(Duration::from_millis(250))? {
+            if let Ok(Event::Key(key)) = event::read() {
+                return Ok(Self::handle_key(key));
+            }
+            return Ok(None);
+        }
+        return Ok(None);
+    }
+    fn handle_key(key: event::KeyEvent) -> Option<Message> {
+        match key.code {
+            KeyCode::Up => Some(Message::Increment),
+            KeyCode::Down => Some(Message::Decrement),
+            KeyCode::Esc => Some(Message::Quit),
+            _ => None,
+        }
+    }
+    fn update(&mut self) -> Result<(), Box<dyn Error>> {
+        if let Ok(msg) = Self::handle_events() {
+            if let Some(msg) = msg {
+                match msg {
+                    Message::Increment => self.counter += 1,
+                    Message::Decrement => self.counter -= 1,
+                    Message::Reset => unimplemented!(),
+                    Message::Quit => self.running_state = RunningState::Done,
+                }
+                return Ok(());
+            } else {
+                return Ok(());
+            }
+        } else {
+            panic!("Failed to process event");
+        }
     }
 }
 
 fn main() -> Result<(), Box<dyn std::error::Error>> {
     let mut app = Root::default();
-    ratatui::run(|terminal| loop {
-        terminal.draw(|frame| {
-            app.view(frame);
-        })?;
+    ratatui::run(|terminal| {
+        while app.running_state == RunningState::Running {
+            terminal.draw(|frame| {
+                app.view(frame);
+            })?;
+            app.update()?;
+        }
+        Ok(())
     })
 }