use clap::Parser;

use std::io::Read;

#[derive(Parser)]

#[clap(

name = "node-types-yaml",

about = "Convert between YAML and JSON node-types formats"

)]

struct Cli {

/// Input file (reads from stdin if not provided)

input: Option<String>,

/// Convert from JSON to YAML (default is YAML to JSON)

#[arg(long)]

from_json: bool,

}

fn main() {

let args = Cli::parse();

let input = match &args.input {

Some(path) => std::fs::read_to_string(path).unwrap_or_else(|e| {

eprintln!("Error reading {path}: {e}");

std::process::exit(1);

}),

None => {

let mut buf = String::new();

std::io::stdin()

.read_to_string(&mut buf)

.unwrap_or_else(|e| {

eprintln!("Error reading stdin: {e}");

std::process::exit(1);

});

buf

}

};

let result = if args.from_json {

yeast::node_types_yaml::convert_from_json(&input)

} else {

yeast::node_types_yaml::convert(&input)

};

match result {

Ok(output) => print!("{output}"),

Err(e) => {

eprintln!("Error: {e}");

std::process::exit(1);

}

}

}