// src/components/admin/admin_panel.rs

use crate::config::colors::themes::Theme;
use crate::state::pages::admin::AdminState; // Import the persistent state
use common::proto::multieko2::table_definition::ProfileTreeResponse;
use ratatui::{
    layout::{Alignment, Constraint, Direction, Layout, Rect},
    style::{Style, Modifier}, // Added Modifier
    text::{Line, Span, Text},
    widgets::{Block, BorderType, Borders, List, ListItem, Paragraph}, // Removed ListState import here
    Frame,
};

// Renamed from AdminPanelState::render and made a standalone function
pub fn render_admin_panel(
    f: &mut Frame,
    admin_state: &AdminState, // Accept the persistent state (immutable borrow is enough for rendering)
    area: Rect,
    theme: &Theme,
    profile_tree: &ProfileTreeResponse,
    selected_profile: &Option<String>, // The globally selected profile for the checkmark
) {
    let block = Block::default()
        .borders(Borders::ALL)
        .border_type(BorderType::Rounded)
        .border_style(Style::default().fg(theme.accent))
        .style(Style::default().bg(theme.bg));

    let inner_area = block.inner(area);
    f.render_widget(block, area);

    let chunks = Layout::default()
        .direction(Direction::Vertical)
        .constraints([Constraint::Length(3), Constraint::Min(1)])
        .split(inner_area);

    // Title
    let title = Line::from(Span::styled("Admin Panel", Style::default().fg(theme.highlight)));
    let title_widget = Paragraph::new(title).alignment(Alignment::Center);
    f.render_widget(title_widget, chunks[0]);

    // Content
    let content_chunks = Layout::default()
        .direction(Direction::Horizontal)
        .constraints([Constraint::Percentage(30), Constraint::Percentage(70)])
        .split(chunks[1]);

    // Profile list - Use data from admin_state
    let items: Vec<ListItem> = admin_state
        .profiles // Use profiles from the persistent state
        .iter()
        .map(|p| {
            ListItem::new(Line::from(vec![
                Span::styled(
                    // Check against the globally selected profile for the checkmark
                    if Some(p) == selected_profile.as_ref() { "✓ " } else { "  " },
                    Style::default().fg(theme.accent),
                ),
                Span::styled(p, Style::default().fg(theme.fg)),
            ]))
        })
        .collect();

    let list = List::new(items)
        .block(Block::default().title("Profiles"))
        .highlight_style(Style::default().bg(theme.highlight).fg(theme.bg));

    // Render statefully using a CLONE of the list_state from persistent AdminState
    // Cloning is necessary because render_stateful_widget needs `&mut ListState`
    // but we only have `&AdminState`. This is a common pattern in Ratatui.
    let mut list_state_clone = admin_state.list_state.clone();
    f.render_stateful_widget(list, content_chunks[0], &mut list_state_clone);

    // Profile details - Use selection info from admin_state
    if let Some(profile) = admin_state
        .get_selected_index() // Use the method from persistent state
        .and_then(|i| profile_tree.profiles.get(i))
    {
        let mut text = Text::default();
        text.lines.push(Line::from(vec![
            Span::styled("Profile: ", Style::default().fg(theme.accent)),
            Span::styled(&profile.name, Style::default().fg(theme.highlight)),
        ]));

        text.lines.push(Line::from(""));
        text.lines.push(Line::from(Span::styled(
            "Tables:",
            Style::default().fg(theme.accent),
        )));

        for table in &profile.tables {
            let mut line = vec![Span::styled(format!("├─ {}", table.name), theme.fg)];
            if !table.depends_on.is_empty() {
                line.push(Span::styled(
                    format!(" → {}", table.depends_on.join(", ")),
                    Style::default().fg(theme.secondary),
                ));
            }
            text.lines.push(Line::from(line));
        }

        let details_widget = Paragraph::new(text).block(Block::default().title("Details"));
        f.render_widget(details_widget, content_chunks[1]);
    }
}