use color_eyre::Result;
use ratatui::{
    layout::{Alignment, Rect}, 
    text::Line, 
    widgets::{Block, Paragraph, Wrap}, 
    Frame
};

use super::{Component, CurrentTab, PartialComponent};
use crate::{
    action::Action, 
    config::Config, 
    palette::StylePalette, 
};

pub struct LogExplorer {
    is_active: bool,
    maybe_log: Option<String>,
    palette: StylePalette,
}

impl Default for LogExplorer {
    fn default() -> Self {
        Self::new()
    }
}

impl LogExplorer {
    pub fn new() -> Self {
        Self {
            is_active: false,
            maybe_log: None,
            palette: StylePalette::default(),
        }
    }
}

impl PartialComponent for LogExplorer {
    fn set_active(&mut self, _current_tab: CurrentTab) {}
}

impl Component for LogExplorer {
    fn register_config_handler(&mut self, config: Config) -> Result<()> {
        if let Some(style) = config.styles.get(&crate::app::Mode::Explorer) {
            self.palette.with_normal_style(style.get("normal_style").copied());
            self.palette.with_normal_border_style(style.get("normal_border_style").copied());
            self.palette.with_normal_title_style(style.get("normal_title_style").copied());
        }
        Ok(())
    }

    fn update(&mut self, action: Action) -> Result<Option<Action>> {
        match action {
            Action::UsedExplorerLog(maybe_log) => self.maybe_log = maybe_log,
            _ => {},
        };
        Ok(None)
    }

    fn draw(&mut self, frame: &mut Frame, area: Rect) -> Result<()> {
        let [_, _, place] = super::explorer_layout(area);

        let (border_style, border_type) = self.palette.create_border_style(self.is_active);

        let line = match &self.maybe_log {
            Some(log) => Line::from(hex::encode(log)),
            None => Line::from(""),
        };

        let paragraph = Paragraph::new(line)
            .block(Block::bordered()
                .border_style(border_style)
                .border_type(border_type)
                .title_alignment(Alignment::Right)
                .title_style(self.palette.create_title_style(false))
                .title("Logs"))
            .alignment(Alignment::Center)
            .wrap(Wrap { trim: true });

        frame.render_widget(paragraph, place);
        Ok(())
    }
}