Add pop-up for Docker

Added a pop-up message for Docker if it is not running when the application starts
and then exits.

cli/Cargo.toml

@@ -18,6 +18,8 @@ tokio = "1.28.1"
 ratatui = "0.23.0"
 byte-unit = "5.1.3"
 
+derive_setters = "0.1.0"
+
 tari_launchpad_protocol = { path = "../libs/protocol" }
 tari_sdm_assets = { path = "../libs/sdm-assets" }
 tari_sdm = { path = "../libs/sdm" }

cli/src/component/expert/mod.rs

@@ -35,7 +35,10 @@ use strum::{Display, EnumCount, EnumIter, FromRepr};
 use crate::{
     component::{
         tabs::{AppTabs, TabGetter},
-        Component, ComponentEvent, Frame, Input,
+        Component,
+        ComponentEvent,
+        Frame,
+        Input,
     },
     state::{focus, AppState, Focus},
 };

cli/src/component/main_view.rs

@@ -33,7 +33,11 @@ use crate::{
         header::{mode::Mode, Header},
         normal::NormalScene,
         settings::SettingsScene,
-        Component, ComponentEvent, Input, Pass,
+        widgets::docker_detect::is_docker_running,
+        Component,
+        ComponentEvent,
+        Input,
+        Pass,
     },
     state::{focus, AppState},
 };
@@ -66,6 +70,10 @@ impl Input for MainView {
             state.terminate();
             state.focus_on(focus::TERMINATION);
             state.update_state();
+
+            if !is_docker_running() {
+                std::process::exit(0);
+            }
         } else if matches!(event, ComponentEvent::StateChanged) {
             self.normal_scene.on_event(event, state);
             self.settings_scene.on_event(event, state);

cli/src/component/mod.rs

@@ -31,12 +31,12 @@ mod settings;
 mod tabs;
 mod termination;
 mod widgets;
-
 use crossterm::event::{KeyCode, KeyEvent, KeyModifiers};
 use derive_more::From;
 pub use main_view::MainView;
 use ratatui::{backend::Backend, layout::Rect, Frame};
 pub use termination::TerminationView;
+pub use widgets::docker_detect::{display_docker_notice, is_docker_running, wait_for_keypress};
 
 use crate::state::AppState;
 

cli/src/component/normal/base_node.rs

@@ -13,9 +13,11 @@ use crate::{
     component::{
         elements::block_with_title,
         widgets::status_line::{StatusLine, StatusReportGetter},
-        Component, ComponentEvent,
+        Component,
+        ComponentEvent,
         ComponentEvent::KeyEvent,
-        Frame, Input,
+        Frame,
+        Input,
     },
     state::AppState,
 };

cli/src/component/normal/mining/helpers.rs

@@ -12,7 +12,7 @@ impl StatusGetter for MergeMiningStatus {
         if state.state.config.session.merge_layer_active {
             ("⚒️  Press [M] to stop Merge Mining", Color::Green)
         } else {
-            ("Press [M] to start Merge mining", Color::Gray)
+            ("Press [M] to start Merge mining   ", Color::Gray)
         }
     }
 }
@@ -24,7 +24,7 @@ impl StatusGetter for ShaMiningStatus {
         if state.state.config.session.sha3x_layer_active {
             ("⚒️  Press [T] to stop SHA3X mining", Color::Yellow)
         } else {
-            ("Press [T] to start SHA3X mining", Color::Gray)
+            ("Press [T] to start SHA3X mining   ", Color::Gray)
         }
     }
 }

cli/src/component/normal/mining/mining_panel.rs

@@ -6,22 +6,22 @@ use log::warn;
 use ratatui::prelude::*;
 use tari_launchpad_protocol::settings::LaunchpadSettings;
 
-use crate::component::elements::block_with_title;
-use crate::component::Pass;
-use crate::state::{focus, Focus};
 use crate::{
     component::{
+        elements::block_with_title,
         normal::mining::{
             helpers::{MergeMiningStatus, ShaMiningStatus},
             status_badge::StatusBadge,
         },
         widgets::LabeledInput,
-        Component, ComponentEvent,
+        Component,
+        ComponentEvent,
         ComponentEvent::KeyEvent,
         Input,
+        Pass,
     },
     focus_id,
-    state::AppState,
+    state::{focus, AppState, Focus},
 };
 
 static MONERO_ADDRESS: Focus = focus_id!();

cli/src/component/normal/mining/status_badge.rs

@@ -57,8 +57,7 @@ impl<G> Input for StatusBadge<G> {
 }
 
 impl<B: Backend, G> Component<B> for StatusBadge<G>
-where
-    G: StatusGetter,
+where G: StatusGetter
 {
     type State = AppState;
 

cli/src/component/normal/mod.rs

@@ -34,7 +34,10 @@ use ratatui::{
 use crate::{
     component::{
         normal::{base_node::BaseNodeWidget, containers::ContainersScene},
-        Component, ComponentEvent, Frame, Input,
+        Component,
+        ComponentEvent,
+        Frame,
+        Input,
     },
     state::AppState,
 };

cli/src/component/settings/base_node.rs

@@ -30,7 +30,11 @@ use crate::{
     component::{
         elements::block_with_title,
         widgets::{LabeledInput, Separator},
-        Component, ComponentEvent, Frame, Input, Pass,
+        Component,
+        ComponentEvent,
+        Frame,
+        Input,
+        Pass,
     },
     focus_id,
     state::{

cli/src/component/settings/docker.rs

@@ -30,7 +30,11 @@ use crate::{
     component::{
         elements::block_with_title,
         widgets::{LabeledInput, Separator},
-        Component, ComponentEvent, Frame, Input, Pass,
+        Component,
+        ComponentEvent,
+        Frame,
+        Input,
+        Pass,
     },
     focus_id,
     state::{

cli/src/component/settings/logs.rs

@@ -30,7 +30,11 @@ use crate::{
     component::{
         elements::block_with_title,
         widgets::{LabeledInput, Separator},
-        Component, ComponentEvent, Frame, Input, Pass,
+        Component,
+        ComponentEvent,
+        Frame,
+        Input,
+        Pass,
     },
     focus_id,
     state::{

cli/src/component/settings/mining.rs

@@ -32,7 +32,11 @@ use crate::{
     component::{
         elements::block_with_title,
         widgets::{LabeledInput, Separator},
-        Component, ComponentEvent, Frame, Input, Pass,
+        Component,
+        ComponentEvent,
+        Frame,
+        Input,
+        Pass,
     },
     focus_id,
     state::{

cli/src/component/settings/mod.rs

@@ -41,7 +41,10 @@ use strum::{Display, EnumCount, EnumIter, FromRepr};
 use crate::{
     component::{
         tabs::{AppTabs, TabGetter},
-        Component, ComponentEvent, Frame, Input,
+        Component,
+        ComponentEvent,
+        Frame,
+        Input,
     },
     state::{focus, AppState, Focus},
 };

cli/src/component/tabs.rs

@@ -51,8 +51,7 @@ pub struct AppTabs<T> {
 }
 
 impl<T> AppTabs<T>
-where
-    T: IntoEnumIterator,
+where T: IntoEnumIterator
 {
     pub fn new() -> Self {
         Self {
@@ -90,8 +89,7 @@ impl<T> AppTabs<T> {
 }
 
 impl<T> Input for AppTabs<T>
-where
-    T: TabGetter,
+where T: TabGetter
 {
     type Output = ();
 

cli/src/component/widgets/docker_detect.rs

@@ -0,0 +1,33 @@
+use ratatui::prelude::*;
+
+use crate::component::{widgets::popup::Popup, Frame};
+
+pub fn is_docker_running() -> bool {
+    match std::process::Command::new("docker").arg("version").output() {
+        Ok(output) => output.stderr.is_empty(),
+        Err(_) => false,
+    }
+}
+
+pub fn display_docker_notice<B: Backend>(f: &mut Frame<B>, title: &str, msg: &str) {
+    let popup_area = Rect {
+        x: 4,
+        y: 2,
+        width: 50,
+        height: 8,
+    };
+    let popup = Popup::default()
+        .content(msg)
+        .style(Style::new().yellow())
+        .title(title)
+        .title_style(Style::new().white().bold())
+        .border_style(Style::new().red());
+    f.render_widget(popup, popup_area);
+}
+
+pub fn wait_for_keypress() {
+    use std::io::{stdin, Read};
+    let mut stdin = stdin();
+    let buf: &mut [u8] = &mut [0; 2];
+    let _unused = stdin.read(buf).expect("Error reading keypress");
+}

cli/src/component/widgets/labeled_input.rs

@@ -105,8 +105,7 @@ pub struct LabeledInput<T: Eq + FromStr = String> {
 }
 
 impl<T> LabeledInput<T>
-where
-    T: Eq + FromStr + ToString,
+where T: Eq + FromStr + ToString
 {
     pub fn new(label: impl ToString, focus: Focus) -> Self {
         Self::new_with_filter(label, focus, |_| true)

cli/src/component/widgets/mod.rs

@@ -21,8 +21,10 @@
 // USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 //
 
+pub mod docker_detect;
 mod label;
 mod labeled_input;
+pub mod popup;
 mod separator;
 pub mod status_line;
 

cli/src/component/widgets/popup.rs

@@ -0,0 +1,35 @@
+use derive_setters::Setters;
+use ratatui::{
+    buffer::Buffer,
+    layout::Rect,
+    prelude::{Line, Style, Text},
+    widgets::{Block, Borders, Clear, Paragraph, Widget, Wrap},
+};
+
+#[derive(Debug, Default, Setters)]
+pub struct Popup<'a> {
+    #[setters(into)]
+    title: Line<'a>,
+    #[setters(into)]
+    content: Text<'a>,
+    border_style: Style,
+    title_style: Style,
+    style: Style,
+}
+
+impl Widget for Popup<'_> {
+    fn render(self, area: Rect, buf: &mut Buffer) {
+        // Ensure that all cells under the popup are cleared to avoid leaking content
+        Clear.render(area, buf);
+        let block = Block::new()
+            .title(self.title)
+            .title_style(self.title_style)
+            .borders(Borders::ALL)
+            .border_style(self.border_style);
+        Paragraph::new(self.content)
+            .wrap(Wrap { trim: true })
+            .style(self.style)
+            .block(block)
+            .render(area, buf);
+    }
+}

cli/src/component/widgets/status_line.rs

@@ -36,8 +36,7 @@ impl<T> Input for StatusLine<T> {
 }
 
 impl<B: Backend, T> Component<B> for StatusLine<T>
-where
-    T: StatusReportGetter,
+where T: StatusReportGetter
 {
     type State = AppState;
 

cli/src/dashboard.rs

@@ -40,7 +40,16 @@ use tari_sim_launchpad::bus::{BusTx, LaunchpadBus};
 use thiserror::Error;
 
 use crate::{
-    component::{Component, ComponentEvent, Input, MainView, TerminationView},
+    component::{
+        display_docker_notice,
+        is_docker_running,
+        wait_for_keypress,
+        Component,
+        ComponentEvent,
+        Input,
+        MainView,
+        TerminationView,
+    },
     events::{EventHandle, TermEvent},
     state::{focus, AppState},
 };
@@ -108,6 +117,25 @@ impl Actor for Dashboard {
         let handle = EventHandle::new(addr);
         self.event_handle = Some(handle);
 
+        if !is_docker_running() {
+            let msg = "\nThe Docker process is not detected.\nPlease ensure it is installed and running.\n\n'Ctrl Q' \
+                       to quit.";
+            if self
+                .terminal
+                .as_mut()
+                .unwrap()
+                .draw(|f| display_docker_notice(f, "Docker Not Running!", msg))
+                .is_err()
+            {
+                println!("{}", msg);
+            }
+
+            wait_for_keypress();
+            println!();
+            println!();
+            std::process::exit(0);
+        }
+
         self.connect_to_bus()?;
 
         ctx.do_next(Redraw)?;