//! Status-bar customization menu — a checkmark list of every toggle pill,
//! opened from the bar's far-right handle. Rendered as a floating overlay
//! above the status bar, same pattern as the scale picker.

use iced::widget::{button, column, container, mouse_area, row, text};
use iced::{Background, Border, Color, Element, Fill, Length, Padding, Theme};

use crate::app::Message;
use crate::ui::statusbar_config::{StatusBarConfig, StatusPill};

/// Full-screen overlay: transparent click-catcher + the menu panel pinned to
/// the bottom-right, just above the status bar.
pub fn statusbar_menu_overlay(config: &StatusBarConfig) -> Element<'static, Message> {
    let rows: Vec<Element<'static, Message>> = StatusPill::ALL
        .iter()
        .map(|&pill| {
            menu_row(
                pill.label(),
                config.is_visible(pill),
                Message::ToggleStatusPill(pill),
            )
        })
        .collect();

    let panel = container(column(rows))
        .style(|_: &Theme| container::Style {
            background: Some(Background::Color(PANEL_BG)),
            border: Border {
                color: PANEL_BORDER,
                width: 1.0,
                radius: 3.0.into(),
            },
            ..Default::default()
        })
        .width(Length::Fixed(200.0));

    let positioned = container(panel)
        .align_right(Fill)
        .align_bottom(Fill)
        .padding(Padding {
            bottom: 27.0,
            right: 4.0,
            top: 0.0,
            left: 0.0,
        })
        .width(Fill)
        .height(Fill);

    mouse_area(positioned)
        .on_press(Message::CloseStatusBarMenu)
        .into()
}

fn menu_row(label: &'static str, checked: bool, msg: Message) -> Element<'static, Message> {
    let check = text(if checked { "✓" } else { "  " })
        .size(11)
        .color(if checked { CHECK_COLOR } else { Color::TRANSPARENT })
        .width(Length::Fixed(14.0));

    let lbl = text(label)
        .size(11)
        .color(if checked { LABEL_ON } else { LABEL_OFF });

    let content = row![check, lbl].spacing(6).align_y(iced::Center);

    button(content)
        .on_press(msg)
        .style(|_: &Theme, status| button::Style {
            background: Some(Background::Color(match status {
                button::Status::Hovered => ROW_HOVER,
                _ => Color::TRANSPARENT,
            })),
            ..Default::default()
        })
        .width(Fill)
        .padding([4, 10])
        .into()
}

// ── Colours ───────────────────────────────────────────────────────────────

const PANEL_BG: Color = Color {
    r: 0.15,
    g: 0.15,
    b: 0.15,
    a: 1.0,
};
const PANEL_BORDER: Color = Color {
    r: 0.32,
    g: 0.32,
    b: 0.32,
    a: 1.0,
};
const ROW_HOVER: Color = Color {
    r: 0.22,
    g: 0.22,
    b: 0.22,
    a: 1.0,
};
const CHECK_COLOR: Color = Color {
    r: 0.35,
    g: 0.75,
    b: 1.00,
    a: 1.0,
};
const LABEL_ON: Color = Color {
    r: 0.92,
    g: 0.92,
    b: 0.92,
    a: 1.0,
};
const LABEL_OFF: Color = Color {
    r: 0.65,
    g: 0.65,
    b: 0.65,
    a: 1.0,
};