import okhttp3.*;

public privileged aspect MailAspect {

	private static final String MAIL_SERVER = "http://da-sentence.cloudapp.net/aspects/sendmail";

	pointcut newClient(String uname, String pass, String email): initialization(Customer.new(String, String, String)) && args(uname, pass, email);
	pointcut buy(): call(void ShoppingCart.pay());
	pointcut passRecovery(): call(void OnlineShopping.passRecovery());

	private static void sendMail(String mail, String subj, String body){
		try {
	    	OkHttpClient client = new OkHttpClient();

	    	MediaType mediaType = MediaType.parse("application/json");
	    	String req = "{\n\t\"from\" : \"OnlineShop\",\n"
	    			+ "\t\"to\" : \"" + mail + "\",\n" +
	    			"\t\"subj\" : \"" + subj + "\",\n"
	    			+ "\t\"body\" : \"" + body + "\"\n}";

	    	System.out.println(req);
	    	RequestBody reqBody = RequestBody.create(mediaType, req);
	    	Request request = new Request.Builder()
	    	  .url(MAIL_SERVER)
	    	  .post(reqBody)
	    	  .addHeader("content-type", "application/json")
	    	  .build();

	    	Response response = client.newCall(request).execute();
	    	} catch(Exception e){

	    	}
	}

	after (): passRecovery(){
		if(OnlineShopping.user == null){
			System.out.println("you are not logged in");
			return;
		}
		if(OnlineShopping.user.email == null){
			System.out.println("no registered mail");
			return;
		}
		String subj = "Your password";
		String body = "Hey " + OnlineShopping.user.getUsername() +
    			"&your password is" + OnlineShopping.user.password;
		sendMail(OnlineShopping.user.getMail(), subj, body);
	}

    after (String uname, String pass, String email): newClient(uname, pass, email) {
    	if (email == null)
    		return;

		String subj = "Welcome to onelinshop";
		String body = "Hey " + uname + "&Welcome to our shop!";
		sendMail(email, subj, body);
    }

    before (): buy() {
    	if (OnlineShopping.user.getMail() == null)
    		return;
    	try {

    	OkHttpClient client = new OkHttpClient();

    	MediaType mediaType = MediaType.parse("application/json");
    	String req = "{\n\t\"from\" : \"OnlineShop\",\n"
    			+ "\t\"to\" : \""+OnlineShopping.user.getMail()+"\",\n" +
    			"\t\"subj\" : \"Welcome to onelinshop\",\n"
    			+ "\t\"body\" : \"Hey " + OnlineShopping.user.getUsername() + "!, here's your reciept!";

    	for(Product product : OnlineShopping.user.getCart().getProducts()){
    		req += "&" + product.getName() + " x" + OnlineShopping.user.getCart().products.get(product);
    	}

    	req += "&total: "+OnlineShopping.user.getCart().getTotalPrice()+"\"\n}";

    	System.out.println(req);
    	RequestBody body = RequestBody.create(mediaType, req);
    	Request request = new Request.Builder()
    	  .url(MAIL_SERVER)
    	  .post(body)
    	  .addHeader("content-type", "application/json")
    	  .build();

    	Response response = client.newCall(request).execute();
    	} catch(Exception e){

    	}

    }
}