extern crate serde_json;

use std::io::Write;
use std::io::BufRead;
use std::collections::HashMap;

use mass::{Mass, MassType};
use module::NavigationStatus;
use server::connection::ServerConnection;

impl ServerConnection {
    pub fn server_engines(&mut self, masses : &mut HashMap<String, Mass>) -> bool {
        let masses_clone = masses.clone();

        let ship = masses.get_mut(&self.name).unwrap();
        let ship_clone = ship.clone();

        if let MassType::Ship{ref mut engines, ref navigation, ..} = ship.mass_type {
            let navigation = navigation.clone().unwrap();
            let engines = engines.as_mut().unwrap();
            let targeted = navigation.status == NavigationStatus::Targeted;

            let send = serde_json::to_string(&targeted).unwrap() + "\n";
            match self.stream.write(send.as_bytes()) {
                Ok(_result) => (),
                Err(_error) => return false,
            }

            let target = match navigation.target_name {
                Some(name) => masses_clone.get(&name),
                None => None,
            };
            let mut recv = String::new();
            match self.buff_r.read_line(&mut recv) {
                Ok(result) => {
                    engines.give_client_data(&ship_clone, target, recv);
                    if result == 0 {
                        return false;
                    }
                },
                Err(_error) => (),
            }
        }

        true
    }
}