use std::io::Write;

use super::messages::IPCMessage;

/// Serialize and write an IPC message to a writer (stdin pipe).
pub fn send_message<W: Write>(writer: &mut W, msg: &IPCMessage) -> Result<(), String> {
    let json = serde_json::to_string(msg).map_err(|e| e.to_string())?;
    writer
        .write_all(json.as_bytes())
        .map_err(|e| format!("Write error: {e}"))?;
    writer
        .write_all(b"\n")
        .map_err(|e| format!("Write error: {e}"))?;
    writer.flush().map_err(|e| format!("Flush error: {e}"))?;
    Ok(())
}