mecha10-cli 0.7.0

//! Advanced TUI for dev mode with logs sidebar using ratatui
//!
//! Provides a split-pane terminal interface:
//! - Left: Main content (teleop controls, status, etc.)
//! - Right: Logs sidebar (scrollable, real-time)
//!
//! This is an example implementation showing how to use ratatui
//! for more sophisticated terminal UIs.

use super::bounded_buffer::BoundedBuffer;
use super::tui_layout::{draw_dashboard_footer, SidebarTui};
use anyhow::Result;
use crossterm::event::{KeyCode, KeyEvent, KeyModifiers};
use ratatui::{
    style::{Color, Modifier, Style},
    text::{Line, Span},
    widgets::{Block, Borders, List, ListItem, Paragraph},
    Frame,
};

pub type LogBuffer = BoundedBuffer<String>;

pub struct DevModeTui {
    log_buffer: LogBuffer,
    scroll_offset: usize,
    current_mode: String,
    running_nodes: Vec<String>,
    key_pressed: Option<char>,
    dashboard_url: String,
}

impl DevModeTui {
    /// Create a new dev mode TUI
    ///
    /// # Arguments
    ///
    /// * `log_buffer` - Shared log buffer for collecting logs
    /// * `current_mode` - Current lifecycle mode name
    /// * `running_nodes` - List of currently running node names
    /// * `dashboard_url` - Dashboard URL to display in footer (derived from mecha10.json)
    pub fn new(log_buffer: LogBuffer, current_mode: String, running_nodes: Vec<String>, dashboard_url: String) -> Self {
        Self {
            log_buffer,
            scroll_offset: 0,
            current_mode,
            running_nodes,
            key_pressed: None,
            dashboard_url,
        }
    }

    /// Update mode and running nodes
    pub fn update_status(&mut self, mode: String, running_nodes: Vec<String>) {
        self.current_mode = mode;
        self.running_nodes = running_nodes;
    }

    /// Draw main instructions panel
    fn draw_instructions(&self, f: &mut Frame, area: ratatui::layout::Rect) {
        let mut text = vec![
            Line::from(vec![Span::styled(
                "🚀 MECHA10 DEVELOPMENT MODE",
                Style::default().fg(Color::Cyan).add_modifier(Modifier::BOLD),
            )]),
            Line::from(""),
            Line::from(vec![
                Span::styled("Mode: ", Style::default().add_modifier(Modifier::BOLD)),
                Span::styled(
                    &self.current_mode,
                    Style::default().fg(Color::Yellow).add_modifier(Modifier::BOLD),
                ),
            ]),
            Line::from(""),
        ];

        if !self.running_nodes.is_empty() {
            text.push(Line::from(vec![Span::styled(
                "Running Nodes:",
                Style::default().add_modifier(Modifier::BOLD),
            )]));
            for node in &self.running_nodes {
                text.push(Line::from(vec![
                    Span::raw("  ✅ "),
                    Span::styled(node, Style::default().fg(Color::Green)),
                ]));
            }
            text.push(Line::from(""));
        }

        text.extend(vec![
            Line::from("━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"),
            Line::from(""),
            Line::from(vec![Span::styled(
                "Commands:",
                Style::default().add_modifier(Modifier::BOLD),
            )]),
        ]);

        let current_mode_lower = self.current_mode.to_lowercase();
        if current_mode_lower == "simulation" {
            text.push(Line::from(vec![Span::styled(
                "  x - Stop simulation mode",
                Style::default().fg(Color::Yellow),
            )]));
        } else if current_mode_lower == "teleop" {
            text.push(Line::from("  s - Switch to simulation mode"));
        } else {
            text.push(Line::from("  s - Switch to simulation mode"));
            text.push(Line::from("  t - Switch to teleop mode"));
        }

        text.extend(vec![
            Line::from(""),
            Line::from("  j/k - Scroll logs (or PgUp/PgDn)"),
            Line::from(""),
            Line::from(vec![Span::styled(
                "  q / Ctrl+C/Ctrl+X - Exit",
                Style::default().fg(Color::Red),
            )]),
        ]);

        if let Some(key) = self.key_pressed {
            text.push(Line::from(""));
            text.push(Line::from(vec![
                Span::raw("Last key: "),
                Span::styled(key.to_string(), Style::default().fg(Color::Yellow)),
            ]));
        }

        let paragraph = Paragraph::new(text).block(
            Block::default()
                .borders(Borders::ALL)
                .title(" Dev Mode ")
                .border_style(Style::default().fg(Color::Cyan)),
        );

        f.render_widget(paragraph, area);
    }

    /// Draw logs sidebar
    fn draw_logs_sidebar(&self, f: &mut Frame, area: ratatui::layout::Rect) {
        let logs = self.log_buffer.get_all();

        let items: Vec<ListItem> = logs
            .iter()
            .skip(self.scroll_offset)
            .map(|log| {
                let (style, icon) = if log.contains("ERROR") {
                    (Style::default().fg(Color::Red).add_modifier(Modifier::BOLD), "❌")
                } else if log.contains("WARN") {
                    (Style::default().fg(Color::Yellow), "⚠️ ")
                } else if log.contains("HEALTH:") && log.contains(" is Running") {
                    (Style::default().fg(Color::Green), "🩺")
                } else if log.contains("HEALTH:") && log.contains(" is Stopped") {
                    (Style::default().fg(Color::Red).add_modifier(Modifier::BOLD), "🩺")
                } else if log.contains("HEALTH:") {
                    (Style::default().fg(Color::Yellow), "🔄")
                } else if log.contains("MODE:") {
                    (Style::default().fg(Color::Cyan).add_modifier(Modifier::BOLD), "⚡")
                } else if log.contains("STARTED") || log.contains("✅") {
                    (Style::default().fg(Color::Green), "✅")
                } else if log.contains("STOPPED") || log.contains("🛑") {
                    (Style::default().fg(Color::Red), "🛑")
                } else if log.contains("INFO") {
                    (Style::default().fg(Color::Green), "ℹ️ ")
                } else if log.contains("DEBUG") {
                    (Style::default().fg(Color::Blue), "🔍")
                } else {
                    (Style::default().fg(Color::White), "  ")
                };

                let log_trimmed = log.trim_start();
                let already_has_icon = log_trimmed.starts_with("✅")
                    || log_trimmed.starts_with("❌")
                    || log_trimmed.starts_with("⚠️")
                    || log_trimmed.starts_with("🛑")
                    || log_trimmed.starts_with("▶️")
                    || log_trimmed.starts_with("🔄")
                    || log_trimmed.starts_with("🩺");
                let formatted_log = if already_has_icon {
                    format!("  {}", log)
                } else {
                    format!("{} {}", icon, log)
                };
                ListItem::new(formatted_log).style(style)
            })
            .collect();

        let title = if logs.is_empty() {
            " System Logs (waiting...) ".to_string()
        } else {
            format!(" System Logs ({}) ", logs.len())
        };

        let list = List::new(items).block(
            Block::default()
                .borders(Borders::ALL)
                .title(title)
                .border_style(Style::default().fg(Color::Yellow)),
        );

        f.render_widget(list, area);
    }

    /// Handle keyboard input - returns the key pressed
    pub fn handle_key(&mut self, key: KeyEvent) -> Option<char> {
        match key.code {
            KeyCode::PageUp | KeyCode::Char('u') if key.modifiers.contains(KeyModifiers::CONTROL) => {
                self.scroll_offset = self.scroll_offset.saturating_sub(10);
                None
            }
            KeyCode::PageDown | KeyCode::Char('d') if key.modifiers.contains(KeyModifiers::CONTROL) => {
                let logs = self.log_buffer.get_all();
                self.scroll_offset = (self.scroll_offset + 10).min(logs.len().saturating_sub(1));
                None
            }
            KeyCode::Char('k') if key.modifiers.is_empty() => {
                self.scroll_offset = self.scroll_offset.saturating_sub(1);
                None
            }
            KeyCode::Char('j') if key.modifiers.is_empty() => {
                let logs = self.log_buffer.get_all();
                self.scroll_offset = (self.scroll_offset + 1).min(logs.len().saturating_sub(1));
                None
            }
            KeyCode::Char(c) => {
                self.key_pressed = Some(c);
                Some(c)
            }
            _ => None,
        }
    }
}

impl SidebarTui for DevModeTui {
    fn draw_main(&mut self, f: &mut Frame, area: ratatui::layout::Rect) {
        self.draw_instructions(f, area);
    }

    fn draw_sidebar(&self, f: &mut Frame, area: ratatui::layout::Rect) {
        self.draw_logs_sidebar(f, area);
    }

    fn draw_footer(&self, f: &mut Frame, area: ratatui::layout::Rect) {
        draw_dashboard_footer(f, area, &self.dashboard_url, "q/Ctrl+C/X");
    }
}

/// Example: Subscribe to Redis logs and populate buffer
///
/// This would run in a background task to collect logs from Redis pub/sub.
/// Note: This is example code showing the pattern - actual implementation
/// would depend on your logging setup.
///
/// Example usage:
/// ```rust,ignore
/// let log_buffer = LogBuffer::new(1000);
/// tokio::spawn({
///     let buffer = log_buffer.clone();
///     async move {
///         subscribe_to_logs(buffer, redis_url).await
///     }
/// });
/// ```
#[allow(dead_code)]
pub async fn subscribe_to_logs(_log_buffer: LogBuffer, _redis_url: String) -> Result<()> {
    Ok(())
}