use crate::*;

impl Perch {
    pub fn handle_save (&mut self, event: &Event, choice: u8) -> Usually<()> {
        match event {
            press!(Esc) => { self.mode = None }
            press!(Left) => { self.mode = Some(Mode::Save {
                choice: choice.overflowing_sub(1).0.min(2)
            }) },
            press!(Right) => { self.mode = Some(Mode::Save {
                choice: (choice + 1) % 3
            }) },
            press!(Enter) => match choice {
                0 => {
                    self.revert_all();
                    self.mode = None;
                },
                1 => {
                    self.mode = None;
                },
                2 => {
                    self.save_all()?;
                    self.mode = None
                },
                _ => unreachable!(),
            },
            _ => {}
        }
        Ok(())
    }
    pub fn save_begin (&mut self) {
        if self.changes > 0 {
            self.mode = Some(Mode::Save { choice: 1 })
        }
    }
}