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

fn main() {
    let mut port = serialport::new("/dev/cu.usbmodem00000021", 115200)
        .data_bits(serialport::DataBits::Eight)
        .flow_control(serialport::FlowControl::None)
        .parity(serialport::Parity::None)
        .stop_bits(serialport::StopBits::One)
        .timeout(Duration::from_millis(5000))
        .open()
        .expect("Failed to open");

    port.write_all(b"AT\r").unwrap();
    port.flush().unwrap();
    std::thread::sleep(Duration::from_millis(500));
    
    let mut buf = vec![0u8; 1024];
    match port.read(&mut buf) {
        Ok(n) => println!("AT response: {:?}", String::from_utf8_lossy(&buf[..n])),
        Err(e) => println!("Error: {}", e),
    }

    port.write_all(b"AT+FTH=?\r").unwrap();
    port.flush().unwrap();
    std::thread::sleep(Duration::from_millis(1000));
    
    let mut buf = vec![0u8; 1024];
    match port.read(&mut buf) {
        Ok(n) => println!("AT+FTH=? response: {:?}", String::from_utf8_lossy(&buf[..n])),
        Err(e) => println!("Error: {}", e),
    }

    port.write_all(b"AT+FTM=?\r").unwrap();
    port.flush().unwrap();
    std::thread::sleep(Duration::from_millis(1000));
    
    let mut buf = vec![0u8; 1024];
    match port.read(&mut buf) {
        Ok(n) => println!("AT+FTM=? response: {:?}", String::from_utf8_lossy(&buf[..n])),
        Err(e) => println!("Error: {}", e),
    }
}