use crate::*;

/// Status bar for sequencer app
#[derive(Clone)]
pub struct SequencerStatus {
    pub(crate) width:   usize,
    pub(crate) cpu:     Option<String>,
    pub(crate) size:    String,
    pub(crate) playing: bool,
}
from!(|state:&SequencerTui|SequencerStatus = {
    let samples = state.clock.chunk.load(Relaxed);
    let rate    = state.clock.timebase.sr.get();
    let buffer  = samples as f64 / rate;
    let width   = state.size.w();
    Self {
        width,
        playing: state.clock.is_rolling(),
        cpu:  state.perf.percentage().map(|cpu|format!("│{cpu:.01}%")),
        size: format!("{}x{}│", width, state.size.h()),
    }
});
render!(Tui: (self: SequencerStatus) => Fixed::y(2, lay!(
    Self::help(),
    Fill::xy(Align::se(Tui::fg_bg(TuiTheme::orange(), TuiTheme::g(25), self.stats()))),
)));
impl SequencerStatus {
    fn help () -> impl Content<Tui> {
        let single = |binding, command|row!(" ", col!(
            Tui::fg(TuiTheme::yellow(), binding),
            command
        ));
        let double = |(b1, c1), (b2, c2)|col!(
            row!("  ", Tui::fg(TuiTheme::yellow(), b1), " ", c1,),
            row!("  ", Tui::fg(TuiTheme::yellow(), b2), " ", c2,),
        );
        Tui::fg_bg(TuiTheme::g(255), TuiTheme::g(50), row!(
            single("SPACE", "play/pause"),
            double(("▲▼▶◀", "cursor"),  ("Ctrl", "scroll"),  ),
            double(("a",    "append"),  ("s",    "set note"),),
            double((",.",   "length"),  ("<>",   "triplet"), ),
            double(("[]",   "phrase"),  ("{}",   "order"),   ),
            double(("q",    "enqueue"), ("e",    "edit"),    ),
            double(("c",    "color"),   ("",     ""),),
        ))
    }
    fn stats (&self) -> impl Content<Tui> + use<'_> {
        row!(&self.cpu, &self.size)
    }
}

/// Status bar for arranger app
#[derive(Clone)]
pub struct ArrangerStatus {
    pub(crate) width:   usize,
    pub(crate) cpu:     Option<String>,
    pub(crate) size:    String,
    pub(crate) playing: bool,
}
from!(|state:&ArrangerTui|ArrangerStatus = {
    let samples = state.clock.chunk.load(Relaxed);
    let rate    = state.clock.timebase.sr.get();
    let buffer  = samples as f64 / rate;
    let width   = state.size.w();
    Self {
        width,
        playing: state.clock.is_rolling(),
        cpu:  state.perf.percentage().map(|cpu|format!("│{cpu:.01}%")),
        size: format!("{}x{}│", width, state.size.h()),
    }
});
render!(Tui: (self: ArrangerStatus) => Fixed::y(2, lay!(
    Self::help(),
    Fill::xy(Align::se(Tui::fg_bg(TuiTheme::orange(), TuiTheme::g(25), self.stats()))),
)));
impl ArrangerStatus {
    fn help () -> impl Content<Tui> {
        let single = |binding, command|row!(" ", col!(
            Tui::fg(TuiTheme::yellow(), binding),
            command
        ));
        let double = |(b1, c1), (b2, c2)|col!(
            row!("  ", Tui::fg(TuiTheme::yellow(), b1), " ", c1,),
            row!("  ", Tui::fg(TuiTheme::yellow(), b2), " ", c2,),
        );
        Tui::fg_bg(TuiTheme::g(255), TuiTheme::g(50), row!(
            single("SPACE", "play/pause"),
            single(" Ctrl", " scroll"),
            single(" ▲▼▶◀", " cell"),
            double(("p", "put"), ("g", "get")),
            double(("q", "enqueue"), ("e", "edit")),
            single(" wsad", " note"),
            double(("a", "append"), ("s", "set"),),
            double((",.", "length"), ("<>", "triplet"),),
            double(("[]", "phrase"), ("{}", "order"),),
        ))
    }
    fn stats (&self) -> impl Content<Tui> + use<'_> {
        row!(&self.cpu, &self.size)
    }
}