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

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let mut raw=Vec::new();
    std::io::stdin().take(64*1024*1024+1).read_to_end(&mut raw)?;
    if raw.len()>64*1024*1024 {return Err("signal_book_transport_limit".into());}
    let book:fidc_core::signal_contract::SignalBook=serde_json::from_slice(&raw)?;
    let version=book.content_sha256()?;
    let validated=book.validate()?;
    let result=serde_json::json!({"schema":fidc_core::signal_contract::SIGNAL_BOOK_SCHEMA,
        "versionSha256":version,"symbols":validated.symbols(),
        "onlineAllowed":validated.require_observed().is_ok()});
    std::io::stdout().write_all(serde_json::to_string(&result)?.as_bytes())?;
    Ok(())
}