use std::{io, io::Write, sync::Arc};
use crate::identity::Identity;
use crate::session_manager::SessionManager;
use text_io::read;

/*fn get_identity_or_create() -> identity::Identity {
    match identity::get_identity() {
        Ok(identity) => {identity}
        Err(_) => {
            identity::create_new_identidy("Bob").unwrap()
        }
    }
}*/

pub fn main(){
    let identity = match Identity::get_identity() {
        Ok(identity) => {identity}
        Err(_) => {
            println!("Creating new identity");
            Identity::create_new_identidy("Bob").unwrap()
        }
    };
    let session_manager = Arc::new(SessionManager::new(identity));
    match SessionManager::start_listener(&session_manager) {
        Ok(_) => {}
        Err(e) => println!("{}", e.to_string())
    }
    SessionManager::start_receiver_loop(&session_manager);
    let mut input = String::new();
    while input != "exit" {
        io::stdout().write(":~$ ".as_bytes()).unwrap();
        io::stdout().flush().unwrap();
        input = read!("{}\n");
        let args: Vec<&str> = input.split(" ").collect();
        if args[0] == "init" {
            match session_manager.connect_to(args[1]) {
                Ok(index) => {
                    println!("Connected !");
                    while input != "exit" {
                        io::stdout().write("BOB:~$ ".as_bytes()).unwrap();
                        io::stdout().flush().unwrap();
                        input = read!("{}\n");
                        match session_manager.send_to(&index, &input) {
                            Ok(_) => {
                                match session_manager.receive_from(index) {
                                    Ok(msg) => println!("{}", std::str::from_utf8(&msg).unwrap()),
                                    Err(e) => println!("{}", e.to_string())
                                }
                            }
                            Err(e) => println!("{}", e.to_string())
                        }
                    }
                }
                Err(e) => println!("{}", e.to_string())
            }
        } else if args[0] == "list" {
            for (i, n) in session_manager.get_sessions() {
                println!("{}: {}", i, n);
            }
        } else if args[0] != "exit" {
            println!("?");
        }
    }
}