use ratatui::layout::Rect;
use ratatui::style::{Style, Modifier};
use ratatui::text::{Line, Span};
use ratatui::widgets::{Block, Borders, List, ListItem};
use ratatui::Frame;
use super::theme::Theme;

pub fn draw_workflow_panel(frame: &mut Frame, area: Rect, state: &crate::app::state::rest::AppStateRest) {
    let block = Block::default()
        .borders(Borders::ALL)
        .border_style(Style::default().fg(Theme::BORDER))
        .title(" Workflow ");

    let session_runtime = match &state.session_runtime {
        Some(r) => r,
        None => {
            let empty = Block::default().borders(Borders::ALL).title(" Workflow ");
            let paragraph = ratatui::widgets::Paragraph::new(Line::from(Span::raw("No active session")))
                .block(empty);
            frame.render_widget(paragraph, area);
            return;
        }
    };

    let tool_count = session_runtime.tool_call_results.len();
    let pending_count = session_runtime.pending_tool_queue.len();
    let bash_count = session_runtime.bash_jobs.len();

    let agent_count = state.workflow_engine.agents.len();
    let findings_count = state.workflow_engine.findings.len();

    let mut items = Vec::new();

    items.push(ListItem::new(Line::from(Span::styled(
        format!(" Messages: {}", session_runtime.messages.len()),
        Style::default().fg(Theme::TEXT),
    ))));

    items.push(ListItem::new(Line::from(Span::styled(
        format!(" Tool calls completed: {}", tool_count),
        Style::default().fg(Theme::SUCCESS),
    ))));

    if pending_count > 0 {
        items.push(ListItem::new(Line::from(Span::styled(
            format!(" Pending tool queue: {}", pending_count),
            Style::default().fg(Theme::WARNING),
        ))));
    }

    if bash_count > 0 {
        items.push(ListItem::new(Line::from(Span::styled(
            format!(" Active bash jobs: {}", bash_count),
            Style::default().fg(Theme::WARNING),
        ))));
    }

    if agent_count > 0 {
        items.push(ListItem::new(Line::from(Span::styled(
            format!(" Agents: {}", agent_count),
            Style::default().fg(Theme::INFO),
        ))));
    }

    if findings_count > 0 {
        items.push(ListItem::new(Line::from(Span::styled(
            format!(" Findings: {}", findings_count),
            Style::default().fg(Theme::WARNING),
        ))));
    }

    let phase_status = match state.mode {
        crate::app::state::types::AgentMode::Auto => "Auto-running",
        crate::app::state::types::AgentMode::Normal => "Awaiting input",
        crate::app::state::types::AgentMode::Plan => "Planning",
        crate::app::state::types::AgentMode::Yolo => "Full autonomy",
    };

    items.push(ListItem::new(Line::from(Span::styled(
        format!(" Phase: {}", phase_status),
        Style::default().fg(Theme::PRIMARY),
    ))));

    let list = List::new(items)
        .block(block)
        .highlight_style(Style::default().add_modifier(Modifier::BOLD));

    frame.render_widget(list, area);
}