var Magister = require('magister.js')
var tools = require("./assets/tools.js");

/* Setting our settings. */
var CONFIG_PATH = "config.json";

/* Load the config.json file. */
var CONFIG = tools.loadJSONfile(CONFIG_PATH);

/* Check magister values. */
if (CONFIG.Magister.url == "" || CONFIG.Magister.username == "" || CONFIG.Magister.password == "" ||
    typeof(CONFIG.Magister.url) != "string" || typeof(CONFIG.Magister.username) != "string" ||
    typeof(CONFIG.Magister.password) != "string") {
  tools.log("error", "CONFIG PARSE ERROR: Magister configuration is not filled in.");
  process.exit(1);
}

function magisterLogin() {
  tools.log("info", "Trying to login to magister.")

  new Magister.Magister({

  	school: {url: CONFIG.Magister.url},
  	username: CONFIG.Magister.username,
  	password: CONFIG.Magister.password

  }).ready(function (err) {

  	printEndGrades(err, this)
  });
}

/* ==========================
 * Functions and stuff below.
 * ========================== */

/* Print end grades to the console. (average grade)*/
function printEndGrades(err, magisterlogin) {
  if (err) {
    tools.log("error", "Could not login to magister.", err);
    process.exit(1);
  }

  // Log our succes!
  tools.log("info", "Logged into magister successfully.")

  /* Get the current course */
  magisterlogin.currentCourse(function (err, currentCourse) {
    if (err) {
      tools.log("error", "Problem getting current course", err);
      process.exit(1);
    }

    /* Get the grades inside of this course */
		currentCourse.grades(function (err, grades) {
      if (err) {
        tools.log("error", "Problem getting current course's grades", err);
        process.exit(1);
      }

      /* Map the grades then log them */
			console.log(grades)

		});
	});
}

/* ==========================
 *         Initialize
 * ========================== */
 magisterLogin();