sercon/sercon-backends/src/backends/toml.rs

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

use miette::{Context, IntoDiagnostic};
use sercon_base::Backend;
use serde_value::Value;

#[derive(Default)]
pub struct TomlBackend;

impl Backend for TomlBackend {
    fn serialize(&self, out: &mut dyn Write, data: Value) -> miette::Result<()> {
        let data = toml::to_string_pretty(&data)
            .into_diagnostic()
            .wrap_err("TOML serialization error")?;

        out.write_all(data.as_bytes())
            .into_diagnostic()
            .wrap_err("error writing TOML data")?;

        Ok(())
    }

    fn deserialize(&self, data: &mut dyn Read) -> miette::Result<Value> {
        let mut buf = Vec::new();
        data.read_to_end(&mut buf)
            .into_diagnostic()
            .wrap_err("error reading TOML input")?;

        toml::from_slice(&buf)
            .into_diagnostic()
            .wrap_err("TOML deserialization error")
    }
}

impl_filetype_backend!(TomlBackend, ["toml"]);