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use tui::{widgets::{Paragraph, Block, Borders, Clear}, layout::{Alignment, Rect, Layout, Direction, Constraint}, backend::Backend, Frame};

use crate::{styles::{selected_style, ERROR_STYLE}, app::App};

use super::ui_popup::centered_rect;


fn draw_error_message<B>(f: &mut Frame<B>, app: &mut App, area: Rect)
where
    B: Backend,
{
    let ok_button_widget = Paragraph::new(app.popup.message.as_str())
        .alignment(Alignment::Center)
        .block(Block::default().borders(Borders::NONE));
    f.render_widget(ok_button_widget, area);
}

fn draw_ok_button<B>(f: &mut Frame<B>, app: &App, area: Rect)
where
    B: Backend,
{
    let ok_button_widget = Paragraph::new("OK")
        .style(selected_style(app.color))
        .alignment(Alignment::Center)
        .block(Block::default().borders(Borders::ALL));
    f.render_widget(ok_button_widget, area);
}

pub fn draw_error_popup<B>(f: &mut Frame<B>, app: &mut App)
where
    B: Backend,
{
    let block = Block::default()
        .title("Error")
        .borders(Borders::ALL)
        .border_style(ERROR_STYLE);

    let area = centered_rect(30, 15, f.size());
    f.render_widget(Clear, area); //this clears out the background
    f.render_widget(block, area);

    let popup_layout = Layout::default()
        .direction(Direction::Horizontal)
        .constraints([Constraint::Percentage(100)].as_ref())
        .margin(1)
        .split(area);
    let popup_layout = Layout::default()
        .direction(Direction::Vertical)
        .constraints(
            [
                Constraint::Percentage(80),
                Constraint::Percentage(20)
            ]
            .as_ref(),
        )
        .margin(1)
        .split(popup_layout[0]);

        draw_error_message(f, app, popup_layout[0]);
        draw_ok_button(f, app, popup_layout[1]);
}