use crate::{core::*,view::*,model::*};

render!(TransportToolbar |self, buf, area| {
    let mut area     = area;
    area.height      = 2;
    let gray         = Style::default().gray();
    let not_dim      = Style::default().not_dim();
    let not_dim_bold = not_dim.bold();
    let corners      = Corners(Style::default().green().not_dim());
    let ppq          = self.ppq();
    let bpm          = self.bpm();
    let pulse        = self.pulse();
    let usecs        = self.usecs();
    let Self { quant, sync, focused, entered, .. } = self;
    fill_bg(buf, area, Nord::bg_lo(*focused, *entered));
    Split::right([

        // Play/Pause button
        &|buf: &mut Buffer, Rect { x, y, .. }: Rect|{
            let style = Some(match self.playing {
                Some(TransportState::Stopped)  => gray.dim().bold(),
                Some(TransportState::Starting) => gray.not_dim().bold(),
                Some(TransportState::Rolling)  => gray.not_dim().white().bold(),
                _ => unreachable!(),
            });
            let label = match self.playing {
                Some(TransportState::Rolling)  => "▶ PLAYING",
                Some(TransportState::Starting) => "READY ...",
                Some(TransportState::Stopped)  => "⏹ STOPPED",
                _ => unreachable!(),
            };
            let mut result = label.blit(buf, x + 1, y, style)?;
            result.width = result.width + 1;
            Ok(result)
        },

        // Beats per minute
        &|buf: &mut Buffer, Rect { x, y, .. }: Rect|{
            "BPM".blit(buf, x, y, Some(not_dim))?;
            let width = format!("{}.{:03}", bpm, bpm % 1).blit(buf, x, y + 1, Some(not_dim_bold))?.width;
            let area  = Rect { x, y, width: (width + 2).max(10), height: 2 };
            if self.focused && self.entered && self.selected == TransportFocus::BPM {
                corners.draw(buf, Rect { x: area.x - 1, ..area })?;
            }
            Ok(area)
        },

        // Quantization
        &|buf: &mut Buffer, Rect { x, y, .. }: Rect|{
            "QUANT".blit(buf, x, y, Some(not_dim))?;
            let width = ppq_to_name(*quant).blit(buf, x, y + 1, Some(not_dim_bold))?.width;
            let area  = Rect { x, y, width: (width + 2).max(10), height: 2 };
            if self.focused && self.entered && self.selected == TransportFocus::Quant {
                corners.draw(buf, Rect { x: area.x - 1, ..area })?;
            }
            Ok(area)
        },

        // Clip launch sync
        &|buf: &mut Buffer, Rect { x, y, .. }: Rect|{
            "SYNC".blit(buf, x, y, Some(not_dim))?;
            let width = ppq_to_name(*sync).blit(buf, x, y + 1, Some(not_dim_bold))?.width;
            let area  = Rect { x, y, width: (width + 2).max(10), height: 2 };
            if self.focused && self.entered && self.selected == TransportFocus::Sync {
                corners.draw(buf, Rect { x: area.x - 1, ..area })?;
            }
            Ok(area)
        },

        // Clock
        &|buf: &mut Buffer, Rect { x, y, width, .. }: Rect|{
            let (beats, pulses)    = (pulse / ppq, pulse % ppq);
            let (bars, beats)      = ((beats / 4) + 1, (beats % 4) + 1);
            let (seconds, msecs)   = (usecs / 1000000, usecs / 1000 % 1000);
            let (minutes, seconds) = (seconds / 60, seconds % 60);
            let timer = format!("{minutes}:{seconds:02}:{msecs:03}  {bars}.{beats}.{pulses:02}");
            timer.blit(buf, x + width - timer.len() as u16 - 1, y, Some(not_dim))
        }

    ]).render(buf, area)
});