termfmt 0.2.8

Opinionated formatting for library primatives with color and outputing to the terminal.
Documentation 
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use std::fmt::Display;
use std::io::stdout;

use serde::Serialize;

pub enum TermFmt<Bundle> {
    Direct(DirectTermFmt),
    Bundled(BundledTermFmt, Bundle),
}

pub enum DirectTermFmt {
    Plain,
    Interactive,
}

pub enum BundledTermFmt {
    Json,
}

pub trait BundleFmt: Serialize + Sized {
    type Config;

    fn new(config: Self::Config) -> Self;

    fn clear(&mut self);
}

impl<Bundle> TermFmt<Bundle>
where
    Bundle: Serialize,
    Bundle: BundleFmt,
{
    pub fn new_plain() -> Self {
        Self::Direct(DirectTermFmt::Plain)
    }

    pub fn new_interactive() -> Self {
        Self::Direct(DirectTermFmt::Interactive)
    }

    pub fn new_json(bundle: Bundle) -> Self {
        Self::Bundled(BundledTermFmt::Json, bundle)
    }

    pub fn bundle(&mut self, modify: impl Fn(&mut Bundle)) {
        let TermFmt::Bundled(_, bundle) = self else {
            return;
        };
        modify(bundle);
    }

    pub fn plain(&self, value: impl Display) {
        if self.is_plain() {
            println!("{}", value);
        }
    }

    pub fn is_plain(&self) -> bool {
        matches!(self, Self::Direct(DirectTermFmt::Plain))
    }

    pub fn is_interactive(&self) -> bool {
        matches!(self, Self::Direct(DirectTermFmt::Interactive))
    }

    pub fn flush(&mut self) -> eyre::Result<()> {
        let TermFmt::Bundled(fmt, bundle) = self else {
            return Ok(());
        };
        match fmt {
            BundledTermFmt::Json => serde_json::to_writer(stdout(), bundle)?,
        }
        bundle.clear();
        Ok(())
    }
}