use clap::command;
// This file is part of Deja-vu.
//
// Deja-vu is free software: you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Deja-vu is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Deja-vu. If not, see <https://www.gnu.org/licenses/>.
//
use color_eyre::Result;
use ratatui::{prelude::*, widgets::*};
use tokio::sync::mpsc::UnboundedSender;

use super::Component;
use crate::{
    action::Action,
    app::Mode,
    config::Config,
    system::disk::{get_disks, Disk},
};

#[derive(Default)]
pub struct Popup {
    command_tx: Option<UnboundedSender<Action>>,
    config: Config,
    disks: Vec<Disk>,
    popup_text: String,
}

impl Popup {
    pub fn new() -> Self {
        Self {
            popup_text: String::from("Scanning Disks..."),
            ..Default::default()
        }
    }
}

impl Component for Popup {
    fn register_action_handler(&mut self, tx: UnboundedSender<Action>) -> Result<()> {
        self.command_tx = Some(tx);
        Ok(())
    }

    fn register_config_handler(&mut self, config: Config) -> Result<()> {
        self.config = config;
        Ok(())
    }

    fn update(&mut self, action: Action) -> Result<Option<Action>> {
        match action {
            Action::Tick => {
                // add any logic here that should run on every tick
            }
            Action::Render => {
                // add any logic here that should run on every render
            }
            Action::DismissPopup => self.popup_text.clear(),
            Action::DisplayPopup(new_text) => self.popup_text = String::from(new_text),
            Action::ScanDisks => {
                if let Some(command_tx) = self.command_tx.clone() {
                    self.disks = get_disks();
                    command_tx.send(Action::NextScreen)?;
                }
            }
            Action::SetMode(Mode::SelectDisks) => {
                self.popup_text.clear();
                if let Some(command_tx) = self.command_tx.clone() {
                    command_tx.send(Action::UpdateDiskList(self.disks.clone()))?;
                }
            }
            _ => {}
        }
        Ok(None)
    }

    fn draw(&mut self, frame: &mut Frame, area: Rect) -> Result<()> {
        if self.popup_text.is_empty() {
            // Only show popup if popup_text is set
            return Ok(());
        }

        let popup_block = Block::default()
            .borders(Borders::ALL)
            .style(Style::default().cyan().bold());
        let popup = Paragraph::new(vec![Line::from(Span::raw(&self.popup_text))])
            .block(popup_block)
            .centered()
            .wrap(Wrap { trim: false });
        frame.render_widget(Clear, area);
        frame.render_widget(popup, area);
        Ok(())
    }
}