From 3e3169dd27e160136f960da065bc9718c1acecb1 Mon Sep 17 00:00:00 2001
From: Pierre Hubert <pierre.git@communiquons.org>
Date: Sat, 8 Oct 2022 16:27:06 +0200
Subject: [PATCH] Add new confirm dialog

---
 rust/cli_player/src/main.rs                   |   3 +-
 .../src/ui_screens/confirm_dialog.rs          | 112 ++++++++++++++++++
 rust/cli_player/src/ui_screens/mod.rs         |   1 +
 3 files changed, 115 insertions(+), 1 deletion(-)
 create mode 100644 rust/cli_player/src/ui_screens/confirm_dialog.rs

diff --git a/rust/cli_player/src/main.rs b/rust/cli_player/src/main.rs
index 802f0f2..e7bc837 100644
--- a/rust/cli_player/src/main.rs
+++ b/rust/cli_player/src/main.rs
@@ -22,7 +22,8 @@ async fn run_app<B: Backend>(terminal: &mut Terminal<B>) -> Result<(), Box<dyn E
     /*let mut rules = GameRules::default();
     rules.boats_can_touch = true;
     let res = set_boats_layout::set_boat_layout(&rules, terminal)?; // select_bot_type::select_bot_type(terminal)?;*/
-    let res = popup_screen::popup_screen("Hi\nWelcome there", terminal);
+    /*let res = popup_screen::popup_screen("Hi\nWelcome there", terminal);*/
+    let res = confirm_dialog::confirm_dialog("Do you really want to interrupt game ?", terminal)?; // select_bot_type::select_bot_type(terminal)?;
     Err(io::Error::new(
         ErrorKind::Other,
         format!("result: {:?}", res),
diff --git a/rust/cli_player/src/ui_screens/confirm_dialog.rs b/rust/cli_player/src/ui_screens/confirm_dialog.rs
new file mode 100644
index 0000000..9164aad
--- /dev/null
+++ b/rust/cli_player/src/ui_screens/confirm_dialog.rs
@@ -0,0 +1,112 @@
+use std::io;
+use std::time::{Duration, Instant};
+
+use crossterm::event;
+use crossterm::event::{Event, KeyCode};
+use tui::backend::Backend;
+use tui::layout::*;
+use tui::text::*;
+use tui::widgets::*;
+use tui::{Frame, Terminal};
+
+use crate::constants::*;
+use crate::ui_screens::utils::centered_rect_size;
+use crate::ui_screens::ScreenResult;
+use crate::ui_widgets::button_widget::ButtonWidget;
+
+struct ConfirmDialogScreen<'a> {
+    title: &'a str,
+    msg: &'a str,
+    is_confirm: bool,
+    can_cancel: bool,
+}
+
+pub fn confirm_dialog<B: Backend>(
+    msg: &str,
+    terminal: &mut Terminal<B>,
+) -> io::Result<ScreenResult<bool>> {
+    let mut model = ConfirmDialogScreen {
+        title: "Confirmation Request",
+        msg,
+        is_confirm: true,
+        can_cancel: false,
+    };
+
+    let mut last_tick = Instant::now();
+    loop {
+        terminal.draw(|f| ui(f, &mut model))?;
+
+        let timeout = TICK_RATE
+            .checked_sub(last_tick.elapsed())
+            .unwrap_or_else(|| Duration::from_secs(0));
+
+        if event::poll(timeout)? {
+            if let Event::Key(key) = event::read()? {
+                match key.code {
+                    KeyCode::Esc | KeyCode::Char('q') if model.can_cancel => {
+                        return Ok(ScreenResult::Canceled)
+                    }
+
+                    // Toggle selected choice
+                    KeyCode::Left | KeyCode::Right | KeyCode::Tab => {
+                        model.is_confirm = !model.is_confirm
+                    }
+
+                    // Submit choice
+                    KeyCode::Enter => {
+                        return Ok(ScreenResult::Ok(model.is_confirm));
+                    }
+                    _ => {}
+                }
+            }
+        }
+        if last_tick.elapsed() >= TICK_RATE {
+            last_tick = Instant::now();
+        }
+    }
+}
+
+fn ui<B: Backend>(f: &mut Frame<B>, model: &mut ConfirmDialogScreen) {
+    // Preprocess message
+    let lines = textwrap::wrap(model.msg, f.size().width as usize - 20);
+    let line_max_len = lines.iter().map(|l| l.len()).max().unwrap();
+
+    let area = centered_rect_size(line_max_len as u16 + 4, 5 + lines.len() as u16, &f.size());
+
+    let block = Block::default().borders(Borders::ALL).title(model.title);
+    f.render_widget(block, area);
+
+    // Create two chunks with equal horizontal screen space
+    let chunks = Layout::default()
+        .direction(Direction::Vertical)
+        .constraints(
+            [
+                Constraint::Length(lines.len() as u16),
+                Constraint::Length(3),
+            ]
+            .as_ref(),
+        )
+        .split(area.inner(&Margin {
+            horizontal: 2,
+            vertical: 1,
+        }));
+
+    let text = lines
+        .iter()
+        .map(|s| Spans::from(s.as_ref()))
+        .collect::<Vec<_>>();
+    let paragraph = Paragraph::new(text);
+    f.render_widget(paragraph, chunks[0]);
+
+    // Buttons
+    let buttons_area = Layout::default()
+        .direction(Direction::Horizontal)
+        .constraints([Constraint::Percentage(50), Constraint::Percentage(50)].as_ref())
+        .split(chunks[1]);
+
+    let cancel_button = ButtonWidget::new("Cancel", true).set_disabled(model.is_confirm);
+    f.render_widget(cancel_button, buttons_area[0]);
+
+    let ok_button = ButtonWidget::new("Confirm", true).set_disabled(!model.is_confirm);
+    f.render_widget(ok_button, buttons_area[1]);
+}
diff --git a/rust/cli_player/src/ui_screens/mod.rs b/rust/cli_player/src/ui_screens/mod.rs
index 48d7495..24aa98d 100644
--- a/rust/cli_player/src/ui_screens/mod.rs
+++ b/rust/cli_player/src/ui_screens/mod.rs
@@ -1,4 +1,5 @@
 pub mod configure_game_rules;
+pub mod confirm_dialog;
 pub mod popup_screen;
 pub mod select_bot_type;
 pub mod select_play_mode;