use std::io::{Read, Write};

use miette::Context;
use serde_value::Value;

pub trait Backend {
    fn serialize(&self, out: &mut dyn Write, data: Value) -> miette::Result<()>;
    fn deserialize(&self, data: &mut dyn Read) -> miette::Result<Value>;
}

pub fn transcode(
    inp: &mut dyn Read,
    out: &mut dyn Write,
    ser_backend: &dyn Backend,
    de_backend: &dyn Backend,
) -> miette::Result<()> {
    let data = de_backend
        .deserialize(inp)
        .wrap_err("error in deserialization backend")?;
    ser_backend
        .serialize(out, data)
        .wrap_err("error in serialization backend")?;

    Ok(())
}