use ratatui::Frame;
use ratatui::layout::{Constraint, Rect};
use ratatui::style::{Color, Modifier, Style};
use ratatui::text::Span;
use ratatui::widgets::{Block, Borders, Cell, Row, Table};

use super::{format_duration, format_size, media_type_color};
use crate::app::AppState;

pub fn render(f: &mut Frame, state: &AppState, area: Rect) {
    let header = Row::new(vec!["", "Title / Name", "Type", "Duration", "Year", "Size"]).style(
        Style::default()
            .fg(Color::Yellow)
            .add_modifier(Modifier::BOLD),
    );

    let rows: Vec<Row> = state
        .media_list
        .iter()
        .enumerate()
        .map(|(i, item)| {
            let is_cursor = Some(i) == state.selected_index;
            let is_selected = state.selected_items.contains(&item.id);

            let style = if is_cursor {
                Style::default().fg(Color::Black).bg(Color::Cyan)
            } else if is_selected {
                Style::default().fg(Color::Black).bg(Color::Green)
            } else {
                Style::default()
            };

            // Selection marker
            let marker = if is_selected { "[*]" } else { "[ ]" };
            let marker_style = if is_selected {
                Style::default()
                    .fg(Color::Green)
                    .add_modifier(Modifier::BOLD)
            } else {
                Style::default().fg(Color::DarkGray)
            };

            let display_name = item.title.as_deref().unwrap_or(&item.file_name).to_string();

            let type_color = media_type_color(&item.media_type);
            let type_cell = Cell::from(Span::styled(
                item.media_type.clone(),
                Style::default().fg(type_color),
            ));

            let duration = item
                .duration_secs
                .map(format_duration)
                .unwrap_or_else(|| "-".to_string());

            let year = item
                .year
                .map(|y| y.to_string())
                .unwrap_or_else(|| "-".to_string());

            Row::new(vec![
                Cell::from(Span::styled(marker, marker_style)),
                Cell::from(display_name),
                type_cell,
                Cell::from(duration),
                Cell::from(year),
                Cell::from(format_size(item.file_size)),
            ])
            .style(style)
        })
        .collect();

    let page = (state.page_offset / state.page_size) + 1;
    let item_count = state.media_list.len();
    let selected_count = state.selected_items.len();
    let title = if selected_count > 0 {
        format!(" Library (page {page}, {item_count} items, {selected_count} selected) ")
    } else {
        format!(" Library (page {page}, {item_count} items) ")
    };

    let table = Table::new(
        rows,
        [
            Constraint::Length(3),      // Selection marker
            Constraint::Percentage(33), // Title
            Constraint::Percentage(18), // Type
            Constraint::Percentage(13), // Duration
            Constraint::Percentage(8),  // Year
            Constraint::Percentage(18), // Size
        ],
    )
    .header(header)
    .block(Block::default().borders(Borders::ALL).title(title));

    f.render_widget(table, area);
}