Refactor: move all ui render.* functions as submodules of ui

src/main.rs

@@ -6,7 +6,7 @@ use p2poolv2_config::Config as P2PoolConfig;
 use pdm::app::AppAction;
 use pdm::app::{App, CurrentScreen};
 use pdm::config::parse_config as parse_bitcoin_config;
-use pdm::ui;
+use pdm::ui::ui;
 
 use anyhow::Result;
 use crossterm::{
@@ -43,7 +43,7 @@ fn main() -> Result<()> {
 
 fn run_app<B: Backend>(terminal: &mut Terminal<B>, app: &mut App) -> Result<()> {
     loop {
-        terminal.draw(|f| ui::ui(f, app))?;
+        terminal.draw(|f| ui(f, app))?;
 
         if let Event::Key(key) = event::read()? {
             if key.kind != KeyEventKind::Press {
@@ -167,14 +167,14 @@ mod tests {
         let mut app = App::new();
 
         // Initial render
-        terminal.draw(|f| ui::ui(f, &mut app)).unwrap();
+        terminal.draw(|f| ui(f, &mut app)).unwrap();
         insta::assert_debug_snapshot!("home_screen", terminal.backend());
 
         // Simulate sidebar move
         app.sidebar_index = 1;
         app.toggle_menu();
 
-        terminal.draw(|f| ui::ui(f, &mut app)).unwrap();
+        terminal.draw(|f| ui(f, &mut app)).unwrap();
         insta::assert_debug_snapshot!("menu_toggled", terminal.backend());
 
         assert_eq!(app.current_screen, CurrentScreen::BitcoinConfig);
@@ -204,7 +204,7 @@ mod tests {
         handle_action(AppAction::CloseModal, &mut app).unwrap();
         assert_eq!(app.current_screen, CurrentScreen::BitcoinConfig);
 
-        terminal.draw(|f| ui::ui(f, &mut app)).unwrap();
+        terminal.draw(|f| ui(f, &mut app)).unwrap();
     }
 
     #[test]
@@ -246,7 +246,7 @@ mod tests {
 
         assert_eq!(app.bitcoin_conf_path, Some(file_path));
 
-        terminal.draw(|f| ui::ui(f, &mut app)).unwrap();
+        terminal.draw(|f| ui(f, &mut app)).unwrap();
     }
 
     #[test]

src/ui/bitcoin.rs

@@ -0,0 +1,58 @@
+// SPDX-FileCopyrightText: 2024 PDM Authors
+//
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
+use crate::app::App;
+use ratatui::{
+    prelude::*,
+    widgets::{Block, Borders, List, ListItem, Paragraph},
+};
+
+// Render the bitcoin config view when no config is loaded yet.
+pub fn render(f: &mut Frame, app: &mut App, area: Rect) {
+    if app.bitcoin_conf_path.is_none() {
+        let p = Paragraph::new("Press [Enter] to select a bitcoin.conf file").block(
+            Block::default()
+                .borders(Borders::ALL)
+                .title(" Bitcoin Config "),
+        );
+        f.render_widget(p, area);
+        return;
+    }
+
+    let items: Vec<ListItem> = app
+        .bitcoin_data
+        .iter()
+        .map(|entry| {
+            let style = if entry.enabled {
+                Style::default()
+                    .fg(Color::White)
+                    .add_modifier(Modifier::BOLD)
+            } else {
+                Style::default().fg(Color::DarkGray)
+            };
+
+            let content = Line::from(vec![
+                Span::styled(format!("{} = ", entry.key), style),
+                Span::styled(&entry.value, style),
+                if !entry.enabled {
+                    Span::styled(" (disabled)", style)
+                } else {
+                    Span::raw("")
+                },
+            ]);
+
+            ListItem::new(content)
+        })
+        .collect();
+
+    let list = List::new(items)
+        .block(
+            Block::default()
+                .borders(Borders::ALL)
+                .title(" Bitcoin Configuration "),
+        )
+        .highlight_style(Style::default().bg(Color::Yellow));
+
+    f.render_widget(list, area);
+}