use std::{cmp::Ordering, sync::Arc};

use crate::util::EqData;
use druid::{
    widget::{Flex, Label, List, Scroll},
    AppLauncher,
    Color,
    Data,
    Lens,
    Widget,
    WidgetExt,
    WindowDesc,
};
use libjens::{api::Meme, JMClient};

pub(crate) mod util;

const LIST_COLS: &[(&str, f64)] = &[("Link", 1000.), ("User", 50.)];

#[tokio::main]
async fn main() -> anyhow::Result<()> {
    let client = JMClient::new();
    let mut memes = client
        .get_memes()
        .await?
        .iter()
        .map(|m| EqData(m.clone()))
        .collect::<Vec<_>>();

    memes.sort_by(|a, b| {
        if let Ok((a, b)) =
            a.0.file_name()
                .and_then(|a| b.0.file_name().map(|b| (a, b)))
        {
            a.cmp(b)
        } else {
            Ordering::Equal
        }
    });

    let main_gui = WindowDesc::new(build_root_widget).title("JensMemes GUI");

    AppLauncher::with_window(main_gui).launch(State {
        memes: Arc::new(memes),
    })?;

    Ok(())
}

#[derive(Debug, Clone, Data, Lens)]
pub struct State {
    pub memes: Arc<Vec<EqData<Meme>>>,
}

fn build_root_widget() -> impl Widget<State> {
    Scroll::new(
        Flex::column()
            .with_child(
                Flex::row()
                    .with_child(Label::new(LIST_COLS[0].0).fix_width(LIST_COLS[0].1))
                    .with_child(Label::new(LIST_COLS[1].0).fix_width(LIST_COLS[1].1))
                    .background(Color::grey8(0x33)),
            )
            .with_child(
                List::new(|| {
                    Flex::row()
                        .with_child(
                            Label::dynamic(|d: &EqData<Meme>, _| d.0.link.clone())
                                .fix_width(LIST_COLS[0].1),
                        )
                        .with_child(
                            Label::dynamic(|d: &EqData<Meme>, _| d.0.user.clone())
                                .fix_width(LIST_COLS[1].1),
                        )
                })
                .lens(State::memes),
            ),
    )
    .padding(5.)
}