seedtool-cli 0.4.0

A command-line tool for generating and transforming cryptographic seeds.
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use anyhow::Result;
use bip39::Mnemonic;

use super::{Format, InputFormat, OutputFormat};
use crate::{cli::Cli, seed::Seed};

pub struct Bip39Format;

impl Format for Bip39Format {
    fn name(&self) -> &str { "bip39" }

    fn round_trippable(&self) -> bool { true }
}

impl InputFormat for Bip39Format {
    fn process_input(&self, mut state: Cli) -> Result<Cli> {
        let mnemonic = Mnemonic::parse_normalized(&state.expect_input()?)?;
        state.seed = Some(Seed::new(mnemonic.to_entropy()));
        Ok(state)
    }
}

impl OutputFormat for Bip39Format {
    fn process_output(&self, state: Cli) -> Result<String> {
        let mnemonic = Mnemonic::from_entropy(state.expect_seed().data())?;
        let words = mnemonic.words().collect::<Vec<&str>>().join(" ");
        Ok(words)
    }
}