Renamed and comment a lot of stuff, fixed a bunch of bugs

pom.xml

@@ -14,8 +14,8 @@
 
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <maven.compiler.source>11</maven.compiler.source>
-    <maven.compiler.target>11</maven.compiler.target>
+    <maven.compiler.source>17</maven.compiler.source>
+    <maven.compiler.target>17</maven.compiler.target>
   </properties>
 
   <dependencies>

src/main/java/xyz/thastertyn/App.java

@@ -12,30 +12,5 @@ public class App {
         
         MainWindow window = new MainWindow();
         window.run();
-
-       /* 
-        try {
-
-            
-            
-
-
-            Document obedy = Jsoup.connect("https://objednavky.jidelnasokolska.cz/faces/secured/month.jsp?terminal=false&keyboard=&printer=")
-            .header("Connection", "keep-alive")
-            .cookie("XSRF-TOKEN", XSRF_TOKEN)
-            .cookie("JSESSIONID", jidelnaJSESSIONID)
-            .get();
-
-            System.out.println(obedy.toString());
-
-            //#endregion
-
-        } catch (IOException e) {
-            // TO DO Auto-generated catch block
-            e.printStackTrace();
-        } catch (SecurityException e)
-        {
-            e.printStackTrace();
-        }*/
     }
 }

src/main/java/xyz/thastertyn/Login/CredentialsInput.java

@@ -18,8 +18,11 @@ import com.googlecode.lanterna.gui2.dialogs.DialogWindow;
 import com.googlecode.lanterna.gui2.dialogs.MessageDialog;
 import com.googlecode.lanterna.gui2.dialogs.MessageDialogButton;
 
-import xyz.thastertyn.Tuples.Triplet;
+import xyz.thastertyn.Types.InputtedCredentials;
 
+/**
+ * A Dialog window for inputing username and password.
+ */
 public class CredentialsInput extends DialogWindow {
 
 	private TextBox username;
@@ -101,18 +104,21 @@ public class CredentialsInput extends DialogWindow {
 			.addComponent(password)
 			.addTo(mainPanel);
 
-		Panel rememberPanel = new Panel()
-			.setLayoutManager(new GridLayout(3))
-			.setLayoutData(GridLayout.createLayoutData(
-				GridLayout.Alignment.FILL,
-				Alignment.CENTER,
-				true,
-				false));
-
-		rememberPanel.addComponent(new Label("Rembember?"))
-			.addComponent(remember)
-			.addTo(mainPanel);
-
+		if(!LocalCredentials.getInstance().checkForExistingCredentials())
+		{
+			Panel rememberPanel = new Panel()
+				.setLayoutManager(new GridLayout(3))
+				.setLayoutData(GridLayout.createLayoutData(
+					GridLayout.Alignment.FILL,
+					Alignment.CENTER,
+					true,
+					false));
+	
+			rememberPanel.addComponent(new Label("Rembember?"))
+				.addComponent(remember)
+				.addTo(mainPanel);
+		}
+			
 		mainPanel.addComponent(new EmptySpace(TerminalSize.ONE));
 
 		buttonPanel.setLayoutData(
@@ -126,6 +132,9 @@ public class CredentialsInput extends DialogWindow {
 		setComponent(mainPanel);
 	}
 
+	/**
+	 * User pressed ok, check if anything is actually typed and if so, pack and return it
+	 */
 	public void onOK()
 	{
 		this.user = username.getText();
@@ -145,9 +154,13 @@ public class CredentialsInput extends DialogWindow {
 		close();
 	}
 
+	/**
+	 * returns the inputted username, password and if user chose to keep credentials stored
+	 * @return {@link InputtedCredentials} with username first, password second and whether to store the credentials third
+	 */
 	@Override
-	public Triplet<String, String, Boolean> showDialog(WindowBasedTextGUI textGUI) {
+	public InputtedCredentials showDialog(WindowBasedTextGUI textGUI) {
 		super.showDialog(textGUI);
-		return new Triplet<String,String,Boolean>(user, pass, remember.isChecked());
+		return new InputtedCredentials(user, pass, remember.isChecked());
 	}
 }

src/main/java/xyz/thastertyn/Login/LocalCredentials.java

@@ -0,0 +1,162 @@
+package xyz.thastertyn.Login;
+
+import java.io.BufferedReader;
+import java.io.BufferedWriter;
+import java.io.File;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
+
+import xyz.thastertyn.Types.Credentials;
+
+public class LocalCredentials {
+
+	private static LocalCredentials localCredentials = new LocalCredentials();
+
+	private String path;
+
+	private File credentialsFile;
+	private File credentialsPath;
+
+	/**
+	 * Checks for already saved credentials, at least if its file exists <br>
+	 * for Windows it checks {@code AppData\Roaming\jecnak\credemtials.txt} <br>
+	 * for Linux it checks {@code ~/.local/share/jecnak/credentials.txt} <br>
+	 * @return
+	 * <ul>
+	 * <li> {@code true} a file exists </li>
+	 * <li> {@code false} doesn't exist </li>
+	 * </ul>
+	 */
+	public boolean checkForExistingCredentials()
+	{
+		if(System.getProperty("os.name").equals("Linux"))
+		{
+			// /home/user/.local/share/jecnak/...
+			path = System.getProperty("user.home") + "/.local/share/jecnak/";
+		}else if(System.getProperty("os.name").contains("Windows"))
+		{
+			// C:\Users\\user\AppData\Roaming\...
+			path = System.getenv("APPDATA") + "\\jecnak\\";
+		}else{
+			return false;
+		}
+
+		credentialsPath = new File(path);
+		credentialsFile = new File(credentialsPath, "credentials.txt");
+
+		if(!credentialsFile.exists())
+		{
+			return false;
+		}
+
+		return true;
+	}
+
+	/**
+	 * Try reading the credentails from a local file
+	 * @return String[] with username on index 0, and password on index 1, <br>
+	 * can also return null if credentials are corrupted, inaccessible, etc.
+	 */
+	public Credentials getCredentialsFile()
+	{
+		// TODO Use hashmap instead of array
+		String user = null;
+		String pass = null;
+
+		if(credentialsFile == null)
+		{
+			return null;
+		}
+
+		try {
+			BufferedReader reader = new BufferedReader(new FileReader(credentialsFile));
+
+			String line = "";
+			while((line = reader.readLine()) != null)
+			{
+				String[] currentValue = line.split("=");
+
+				if(currentValue[0].equals("user"))
+				{
+					user = currentValue[1];
+				}else if(currentValue[0].equals("pass"))
+				{
+					pass = currentValue[1];
+				}
+			}
+
+			reader.close();
+		} catch (IOException e) {
+			e.printStackTrace();
+			return null;
+		}
+
+		if(user == null || pass == null)
+		{
+			return null;
+		}
+
+		return new Credentials(user, pass);
+	}
+
+	/**
+	 * appends the current credentials to the file
+	 * @param credentials the array containing username and password. Username is on index 0, password on index 1
+	 * @return
+	 */
+	public boolean saveCredentials(Credentials credentials)
+	{
+		if(credentialsFile == null)
+		{
+			return false;
+		}
+
+		if(!credentialsFile.exists())
+		{
+			try{
+				credentialsPath.mkdirs();
+				credentialsFile.createNewFile();
+			}catch(IOException e)
+			{
+				return false;
+			}
+		}
+
+		try {
+			BufferedWriter writer = new BufferedWriter(new FileWriter(credentialsFile));
+			writer.append(String.format(
+				"user=%s\npass=%s\n",
+				credentials.getUsername(),
+				credentials.getPassword()));
+
+			writer.close();
+		} catch (IOException e) {
+			e.printStackTrace();
+			return false;
+		}
+
+		return true;
+	}
+
+	/**
+	 * Deletes the credentials file
+	 * @return
+	 */
+	public boolean deleteCredentials()
+	{
+		credentialsFile.delete();
+		return true;
+	}
+
+	/**
+	 * Returns a single instance to prevent creating and loading the files all over again when not much has changed
+	 * @return {@link LocalCredentials} instance
+	 */
+	public static LocalCredentials getInstance()
+	{
+		return localCredentials;
+	}
+
+}
+

src/main/java/xyz/thastertyn/Login/Login.java

@@ -12,101 +12,103 @@ import org.jsoup.Connection.Method;
 import org.jsoup.nodes.Document;
 
 import xyz.thastertyn.Scrape.Downloader;
+import xyz.thastertyn.Types.Credentials;
 
 public class Login {
 
 	private String Jsessionid = null;
 
-	// Check for session expiration
-	private long start;
-	private long lastCheck;
-
-	public void loginJecna(String user, String pass) throws UnknownHostException, IOException, CredentialException, TimeoutException
+	/**
+	 * Tries logging into SPSE Jecna. If it succeeds it also saves the JSessionId into {@link Downloader} for ease of use. If it fails to login, the program is as good as not running at all
+	 * @param credentials {@link Credentials} for username anas password
+	 * @throws UnknownHostException Most likely no internet connection, spsejecna.cz could not be recognised as a host
+	 * @throws IOException by Jsoup
+	 * @throws CredentialException The username or password is incorrect
+	 * @throws TimeoutException Connection timed out, most likely a very slow internet
+	 */
+	public void loginJecna(Credentials credentials) throws UnknownHostException, IOException, CredentialException, TimeoutException
 	{
-			//#region JSESSIONID
-			Connection.Response response = Jsoup.connect("https://www.spsejecna.cz")
-			.header("Connection", "keep-alive")
-			.method(Method.HEAD)
-			.execute();
+		//#region JSESSIONID
+		Connection.Response response = Jsoup.connect("https://www.spsejecna.cz")
+		.header("Connection", "keep-alive")
+		.method(Method.HEAD)
+		.execute();
 
-			Jsessionid = response.cookie("JSESSIONID");
-			Downloader.setJSessionId(Jsessionid);
-			//#endregion
+		Jsessionid = response.cookie("JSESSIONID");
+		Downloader.setJSessionId(Jsessionid);
+		//#endregion
 
-			//#region Token3
-			String token3 = Downloader.download("https://www.spsejecna.cz/user/role?role=student")
-			.get()
-			.select("input[name=token3]")
-			.attr("value");
-			//#endregion
+		//#region Token3
+		String token3 = Downloader.getConnection("https://www.spsejecna.cz/user/role?role=student")
+		.get()
+		.select("input[name=token3]")
+		.attr("value");
+		//#endregion
 
-			//#region Login
-			Downloader.download("https://www.spsejecna.cz/user/login")
-			.method(Connection.Method.POST)
-			.header("Content-Type", "application/x-www-form-urlencoded")
-			.header("Origin", "https://www.spsejecna.cz")
-			.data("token3", token3)
-			.data("user", user)
-			.data("pass", pass)
-			.data("submit", "P%C5%99ihl%C3%A1sit+se")
-			.followRedirects(true)
-			.execute();
-			//#endregion
+		//#region Login
+		Downloader.getConnection("https://www.spsejecna.cz/user/login")
+		.method(Connection.Method.POST)
+		.header("Content-Type", "application/x-www-form-urlencoded")
+		.header("Origin", "https://www.spsejecna.cz")
+		.data("token3", token3)
+		.data("user", credentials.getUsername())
+		.data("pass", credentials.getPassword())
+		.data("submit", "P%C5%99ihl%C3%A1sit+se")
+		.followRedirects(true)
+		.execute();
+		//#endregion
 
-			Document test = Downloader.download("https://www.spsejecna.cz/score/student")
-			.get();
+		Document test = Downloader.getConnection("https://www.spsejecna.cz/score/student")
+		.get();
 
-			if(test.toString().contains("Pro pokračování se přihlaste do systému"))
-			{
-				throw new CredentialException("Incorrect username or password");
-			}
-
-			start = System.currentTimeMillis() / 1000L;
-			lastCheck = start;
+		if(test.toString().contains("Pro pokračování se přihlaste do systému"))
+		{
+			throw new CredentialException("Incorrect username or password");
+		}
 	}
 
 	public void loginJidelna(String user, String pass) throws UnknownHostException, IOException
 	{
-            //#region JSESSIONID
-            Connection.Response jidelna = Jsoup.connect("https://objednavky.jidelnasokolska.cz/")
-            .header("Connection", "keep-alive")
-            .method(Method.HEAD)
-            .execute();
+		//#region JSESSIONID
+		Connection.Response jidelna = Jsoup.connect("https://objednavky.jidelnasokolska.cz/")
+		.header("Connection", "keep-alive")
+		.method(Method.HEAD)
+		.execute();
 
-            String jidelnaJSESSIONID = jidelna.cookie("JSESSIONID");
-            String XSRF_TOKEN = jidelna.cookie("XSRF-TOKEN");
-            //#endregion
+		String jidelnaJSESSIONID = jidelna.cookie("JSESSIONID");
+		String XSRF_TOKEN = jidelna.cookie("XSRF-TOKEN");
+		//#endregion
 
-            //#region CSRF
-            String csrf = Jsoup.connect("https://objednavky.jidelnasokolska.cz/faces/login.jsp")
-            .header("Connection", "keep-alive")
-            .cookie("XSRF-TOKEN", XSRF_TOKEN)
-            .cookie("JSESSIONID", jidelnaJSESSIONID)
-            .get()
-            .select("input[name=_csrf]")
-            .attr("value");
+		//#region CSRF
+		String csrf = Jsoup.connect("https://objednavky.jidelnasokolska.cz/faces/login.jsp")
+		.header("Connection", "keep-alive")
+		.cookie("XSRF-TOKEN", XSRF_TOKEN)
+		.cookie("JSESSIONID", jidelnaJSESSIONID)
+		.get()
+		.select("input[name=_csrf]")
+		.attr("value");
 
 
-            if(!XSRF_TOKEN.equals(csrf))
-            {
-                throw new SecurityException("CSRF tokens do not match, something is up");
-            }
-            //#endregion
+		if(!XSRF_TOKEN.equals(csrf))
+		{
+			throw new SecurityException("CSRF tokens do not match, something is up");
+		}
+		//#endregion
 
-            //#region Login
-            Jsoup.connect("https://objednavky.jidelnasokolska.cz/j_spring_security_check")
-            .header("Connection", "keep-alive")
-            .header("Content-Type", "application/x-www-form-urlencoded")
-            .cookie("XSRF-TOKEN", XSRF_TOKEN)
-            .cookie("JSESSIONID", jidelnaJSESSIONID)
-            .data("j_username", user)
-            .data("j_password", pass)
-            .data("terminal", "false")
-            .data("type", "web")
-            .data("_csrf", XSRF_TOKEN)
-            .data("targetUrl", "/faces/secured/main.jsp?terminal=false&status=true&printer=false&keyboard=false")
-            .method(Method.POST)
-            .execute();
-            //#endregion
+		//#region Login
+		Jsoup.connect("https://objednavky.jidelnasokolska.cz/j_spring_security_check")
+		.header("Connection", "keep-alive")
+		.header("Content-Type", "application/x-www-form-urlencoded")
+		.cookie("XSRF-TOKEN", XSRF_TOKEN)
+		.cookie("JSESSIONID", jidelnaJSESSIONID)
+		.data("j_username", user)
+		.data("j_password", pass)
+		.data("terminal", "false")
+		.data("type", "web")
+		.data("_csrf", XSRF_TOKEN)
+		.data("targetUrl", "/faces/secured/main.jsp?terminal=false&status=true&printer=false&keyboard=false")
+		.method(Method.POST)
+		.execute();
+		//#endregion
 	}
 }

src/main/java/xyz/thastertyn/Login/LoginController.java

@@ -1,10 +1,5 @@
 package xyz.thastertyn.Login;
 
-import java.io.BufferedReader;
-import java.io.BufferedWriter;
-import java.io.File;
-import java.io.FileReader;
-import java.io.FileWriter;
 import java.io.IOException;
 import java.net.UnknownHostException;
 import java.util.concurrent.TimeoutException;
@@ -15,12 +10,17 @@ import com.googlecode.lanterna.gui2.WindowBasedTextGUI;
 import com.googlecode.lanterna.gui2.dialogs.MessageDialog;
 import com.googlecode.lanterna.gui2.dialogs.MessageDialogButton;
 
-import xyz.thastertyn.Tuples.Triplet;
+import xyz.thastertyn.Types.Credentials;
+import xyz.thastertyn.Types.InputtedCredentials;
 
+/**
+ * Merges the functionality of {@link LocalCredentials}, {@link CredentialsInput}, and {@link Login}
+ */
 public class LoginController {
 	
 	private WindowBasedTextGUI textGUI;
 	private xyz.thastertyn.Login.CredentialsInput dialog;
+	private LocalCredentials localCredentials = LocalCredentials.getInstance();
 	private xyz.thastertyn.Login.Login login = new xyz.thastertyn.Login.Login();
 
 	public LoginController(WindowBasedTextGUI textGUI)
@@ -28,165 +28,72 @@ public class LoginController {
 		this.textGUI = textGUI;
 	}
 
-	public void login()
+	/**
+	 * Picks appropriate method for logging in
+	 * <ul>
+	 * <li> Locally stored credentials exist, then try using them. If they arent in good shape, use GUI
+	 * <li> Use GUI and ask the user for credentials
+	 * </ul>
+	*/
+	public void login(boolean forceGUI)
+	{
+		Credentials credentials;
+
+		if(!forceGUI && localCredentials.checkForExistingCredentials())
+		{
+			credentials = localCredentials.getCredentialsFile();
+		}else{
+			credentials = loginUsingGui();
+		}
+		
+		useCredentials(credentials);
+	}
+
+	public Credentials loginUsingGui()
 	{
 		dialog = new CredentialsInput();
-		if(checkForCredentials()) // Credentials exist
+
+		InputtedCredentials credentials = dialog.showDialog(textGUI);
+
+		if(credentials.save())
 		{
-			if(loginUsingCredentials()) // They are accessible and can read them
-			{
-				return;
-			}
+			localCredentials.saveCredentials(credentials.getCredentials());
 		}
 
-		Triplet<String, String, Boolean> data = dialog.showDialog(textGUI); // Failed to get credentials to log in, get them from user
-		try
-		{
-			login.loginJecna(data.getValue0(), data.getValue1());
-		}catch (TimeoutException e)
-		{
-			MessageDialog.showMessageDialog(textGUI, "Timeout", "The attempt to connect took too long.", MessageDialogButton.Retry,
-			MessageDialogButton.Abort);
-		} catch (UnknownHostException e) {
-			MessageDialog.showMessageDialog(textGUI, "No Internet connection",
-					"There seems to be no internet connection, reverting to cached data", 
-					MessageDialogButton.OK);
-			login();
-		} catch (CredentialException e)
-		{
-			MessageDialog.showMessageDialog(textGUI, "Incorrect username or password", 
-			"The username or password you entered is incorrect", 
-			MessageDialogButton.OK);
-			login();
-		} catch (IOException e)
-		{
-			MessageDialog.showMessageDialog(textGUI, "There was an error", 
-			"Maybe try again and it will go away", 
-			MessageDialogButton.Retry);
-			login();
-		}
+		return credentials.getCredentials();
 	}
 
 	/**
-	 * Zkontroluje zda jiz neexistuji ulozene udaje na systemu
-	 * @return <ul>
-	 * <li> {@code true} soubor existuje a neni prazdny </li>
-	 * <li> {@code false} neexistuje, nebo je prazdny </li>
-	 * </ul>
+	 * Credentials were successfully obtained and are used for logging in, although a lot can go wrong
+	 * @param credentials
 	 */
-	private boolean checkForCredentials()
+	private void useCredentials(Credentials credentials)
 	{
-		return false;
-		//File credentials = null;
-
-		//if(System.getProperty("os.name").equals("Linux"))
-		//{
-		//	credentials = new File("~/.local/share/jecnak/credentials.json");
-
-		//}else if(System.getProperty("os.name").contains("Windows"))
-		//{
-		//	credentials = new File(System.getenv("APPDATA\\jecnak\\"));
-		//}
-
-		//if(!credentials.exists() || credentials.length() == 0)
-		//{
-		//	return false;
-		//}
-		//return true;
-	}
-
-	public boolean saveCredentials(String user, String pass)
-	{
-		File credentials;
-
-		if(System.getProperty("os.name").equals("Linux"))
-		{
-			credentials = new File("~/.local/share/jecnak/credentials.json");
-
-		}else if(System.getProperty("os.name").contains("Windows"))
-		{
-			credentials = new File(System.getenv("APPDATA\\jecnak\\"));
-		}else{
-			return false;
-		}
-
 		try {
-			BufferedWriter writer = new BufferedWriter(new FileWriter(credentials));
-			writer.append("username=" + user);
-			writer.append("password=" + pass);
-
-			writer.close();
-		} catch (IOException e) {
-			e.printStackTrace();
-			return false;
-		}
-
-		return true;
-	}
-
-	private boolean loginUsingCredentials()
-	{
-		File credentials;
-
-		if(System.getProperty("os.name").equals("Linux"))
+			login.loginJecna(credentials);
+		}catch (TimeoutException e)
 		{
-			credentials = new File("~/.local/share/jecnak/credentials.json");
-
-		}else if(System.getProperty("os.name").contains("Windows"))
+			MessageDialog.showMessageDialog(textGUI, "Timeout", "The attempt to connect took too long. The app will quit", MessageDialogButton.OK);
+			System.exit(0);
+		} catch (UnknownHostException e) {
+			MessageDialog.showMessageDialog(textGUI, "No Internet connection. The app will quit",
+					e.getMessage(), 
+					MessageDialogButton.OK);
+			System.exit(0);
+		} catch (CredentialException e)
 		{
-			credentials = new File(System.getenv("APPDATA\\jecnak\\"));
-		}else{
-			return false;
-		}
-
-		if(!credentials.exists() || credentials.length() == 0) 
+			MessageDialog.showMessageDialog(textGUI, "Incorrect username or password", 
+			e.getMessage(), 
+			MessageDialogButton.OK);
+			// The credentials were most likely tampered with after save, just get rid of them and save them another time
+			LocalCredentials.getInstance().deleteCredentials();
+			login(true);
+		} catch (IOException e)
 		{
-			return false;
+			MessageDialog.showMessageDialog(textGUI, "There was an error. The app will quit", 
+			e.getMessage(), 
+			MessageDialogButton.Retry);
+			System.exit(0);
 		}
-
-		String user = "";
-		String pass = "";
-
-		try {
-			BufferedReader reader = new BufferedReader(new FileReader(credentials));
-
-			String line = "";
-			while((line = reader.readLine()) != null)
-			{
-				if(line.matches("^[a-z]\\=.*$"))
-				{
-					String key = line.split("=")[0];
-					String value = line.split("=")[1];
-					
-					switch(key)
-					{
-						case "username":
-							user = value;
-							break;
-						case "password":
-							pass = value;
-							break;
-						default:
-							continue;
-					}
-				}else{
-					continue;
-				}
-			}
-
-			reader.close();
-		} catch (IOException e) {
-			e.printStackTrace();
-			return false;
-		}
-
-		try {
-			login.loginJecna(user, pass);
-		} catch (CredentialException | IOException | TimeoutException e) {
-			e.printStackTrace();
-			return false;
-		}
-
-		return true;
 	}
 }

src/main/java/xyz/thastertyn/Scrape/AbsenceList.java

@@ -0,0 +1,123 @@
+package xyz.thastertyn.Scrape;
+
+import java.io.IOException;
+import java.time.LocalDate;
+import java.time.Month;
+import java.util.ArrayList;
+import java.util.Arrays;
+
+import org.jsoup.nodes.Document;
+import org.jsoup.nodes.Element;
+import org.jsoup.select.Elements;
+
+import xyz.thastertyn.Types.Choice;
+import xyz.thastertyn.Types.Option;
+import xyz.thastertyn.Types.Options;
+
+public class AbsenceList extends JecnaScrape {
+	
+	private ArrayList<xyz.thastertyn.Types.AbsenceList> data;
+	private Choice currentChoice;
+	
+	private Options schoolYearOptions;
+
+	@Override
+	public void download() throws IOException
+	{
+		parse("https://www.spsejecna.cz/absence/student");
+	}
+
+	@Override
+	public void download(Choice choice) throws IOException {
+
+		currentChoice = choice;
+
+		parse(String.format(
+			"https://www.spsejecna.cz/absence/student?schoolYearId=%s",
+			choice.getChoices().get(0)));
+	}
+
+	private void parse(String url) throws IOException
+	{
+		data = new ArrayList<>();
+		schoolYearOptions = new Options("Skolni R.");
+		Document absenceListHTMLDocument = Downloader.download(url);
+
+		Elements absenceLists = absenceListHTMLDocument.select("table.absence-list").select("tbody").select("tr");
+
+		for(Element e : absenceLists)
+		{
+			String date = e.child(0).text();
+
+
+			String text = e.child(1).text();
+
+			data.add(
+				new xyz.thastertyn.Types.AbsenceList(
+					date, text));
+		}
+
+		Elements options = absenceListHTMLDocument.select("form.listConfigure").select("select[id=schoolYearId]").select("option");
+
+		for(Element e : options)
+		{
+			boolean isDefault = e.hasAttr("selected");
+			schoolYearOptions.addOption(new Option(e.text(), e.attr("value"), isDefault));
+		}
+
+		currentChoice = new Choice(Arrays.asList(schoolYearOptions.getOptions().get(0).getValue()));
+	}
+
+	/**
+	 * Convert text to a {@link LocalDate} and try to guess the year
+	 * @param text to be parsed
+	 * @return {@link LocalDate} parsed
+	 */
+	// private LocalDate parseDate(String text)
+	// {
+	// 	int year = 0, month = 0, day = 0;
+	// 	String[] split = text.split("\\.");
+
+	// 	day = Integer.parseInt(split[0]);
+	// 	month = Integer.parseInt(split[1]);
+
+	// 	if(currentChoice == null)
+	// 	{
+	// 		// Pick the current year
+	// 		int currYear = LocalDate.now().getYear();
+	// 		int currMonth = LocalDate.now().getMonthValue();
+
+	// 		if(month > currMonth && currMonth < 8)
+	// 		{
+	// 			year = currYear;
+	// 		}else if(month < currMonth && currMonth > 8)
+	// 		{
+	// 			year = currYear + 1;
+	// 		}else if(month < currMonth && currMonth < 8)
+	// 		{
+	// 			year = currYear;
+	// 		}
+	// 	}else{
+	// 		year = Integer.parseInt(currentChoice.getChoices().get(0));
+	// 	}
+
+	// 	return LocalDate.of(year, Month.of(month), day);
+	// }
+
+	@Override
+	public Options[] getOptions() {
+		return new Options[] {schoolYearOptions};
+	}
+
+	public ArrayList<xyz.thastertyn.Types.AbsenceList> getData()
+	{
+		return data;
+	}
+
+	@Override
+	public String toString()
+	{
+		return (!data.isEmpty()) ? data.toString() : null;
+	}
+
+}

src/main/java/xyz/thastertyn/Scrape/Canteen.java

@@ -0,0 +1,53 @@
+package xyz.thastertyn.Scrape;
+
+import java.io.IOException;
+
+import xyz.thastertyn.Types.Choice;
+import xyz.thastertyn.Types.Options;
+
+public class Canteen extends JecnaScrape {
+
+    //public void foo()
+    //{
+    //    try {
+
+            
+            
+
+
+    //        Document obedy = Jsoup.connect("https://objednavky.jidelnasokolska.cz/faces/secured/month.jsp?terminal=false&keyboard=&printer=")
+    //        .header("Connection", "keep-alive")
+    //        .cookie("XSRF-TOKEN", XSRF_TOKEN)
+    //        .cookie("JSESSIONID", jidelnaJSESSIONID)
+    //        .get();
+
+    //        System.out.println(obedy.toString());
+
+    //        //#endregion
+
+    //    } catch (IOException e) {
+    //        // TO DO Auto-generated catch block
+    //        e.printStackTrace();
+    //    } catch (SecurityException e)
+    //    {
+    //        e.printStackTrace();
+    //    }
+    //}
+
+
+	@Override
+	public Options[] getOptions() {
+		throw new UnsupportedOperationException("Unimplemented method 'getOptions'");
+	}
+
+	@Override
+	public void download(Choice choice) throws IOException {
+		throw new UnsupportedOperationException("Unimplemented method 'download'");
+	}
+
+	@Override
+	public void download() throws IOException {
+		throw new UnsupportedOperationException("Unimplemented method 'download'");
+	}
+	
+}

src/main/java/xyz/thastertyn/Scrape/Downloader.java

@@ -1,24 +1,50 @@
 package xyz.thastertyn.Scrape;
 
+import java.io.IOException;
+
 import org.jsoup.Connection;
 import org.jsoup.Jsoup;
+import org.jsoup.nodes.Document;
 
 public class Downloader {
 
 	private static String JsessionId;
 
-	public static Connection download(String url)
+	/**
+	 * Provide a general Jsoup Connection for simplicity with some predefined values and JSessionId already set
+	 * @param url
+	 * @return HTML Document downloaded. If it fails, null
+	 */
+	public static Document download(String url) throws IOException
 	{
-		Connection c = Jsoup.connect(url)
+		return Jsoup.connect(url)
 		.header("Connection", "keep-alive")
 		.cookie("role", "student")
 		.cookie("JSESSIONID", JsessionId)
-		.timeout(10000);
-		return c;
+		.timeout(10000)
+		.get();
 	}
 
-	public static void setJSessionId(String JsId)
+	/**
+	 * Returns a basic {@link Connection} with some predefined headers
+	 * @param url
+	 * @return {@link Connection} with timeout for 10s, and headers needed for downloading from spsejecna.cz
+	 */
+	public static Connection getConnection(String url)
 	{
-		JsessionId = JsId;
+		return Jsoup.connect(url)
+			.header("Connection", "keep-alive")
+			.cookie("role", "student")
+			.cookie("JSESSIONID", JsessionId)
+			.timeout(10000);
+	}
+
+	/**
+	 * Sets JsessionId
+	 * @param newJsessionId JsessionId
+	 */
+	public static void setJSessionId(String newJsessionId)
+	{
+		JsessionId = newJsessionId;
 	}
 }

src/main/java/xyz/thastertyn/Scrape/JecnaScrape.java

@@ -0,0 +1,32 @@
+package xyz.thastertyn.Scrape;
+
+import java.io.IOException;
+
+import xyz.thastertyn.Types.Choice;
+import xyz.thastertyn.Types.Options;
+
+/**
+ * Abstract class to wrap around everything that scrapes some data. Most of them also have getData or something similiar,
+ * but the data types are just so vastly different, they couldnt be wrapped as abstract method and abstract class
+ */
+public abstract class JecnaScrape {
+	
+	/**
+	 * returns possible options, like school year or half year
+	 * @return {@link Options} array, for when there are more options available
+	 */
+	public abstract Options[] getOptions();
+
+	/**
+	 * Downloads the chosen url, given the {@link Choice} which includes all the needed data
+	 * @param choice of any possible data like school year or half year
+	 * @throws IOException like any other download method, in case no internet, timeout, etc.
+	 */
+	public abstract void download(Choice choice) throws IOException;
+
+	/**
+	 * Downloads the default url, without any parameters
+	 * @throws IOException in case of timeout, no internet, etc.
+	 */
+	public abstract void download() throws IOException;
+}

src/main/java/xyz/thastertyn/Scrape/Jidelna.java

@@ -1,5 +0,0 @@
-package xyz.thastertyn.Scrape;
-
-public class Jidelna {
-	
-}

src/main/java/xyz/thastertyn/Scrape/Marks.java

@@ -0,0 +1,129 @@
+package xyz.thastertyn.Scrape;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.regex.Pattern;
+
+import org.jsoup.nodes.Document;
+import org.jsoup.nodes.Element;
+import org.jsoup.select.Elements;
+
+import xyz.thastertyn.Types.Choice;
+import xyz.thastertyn.Types.FinalMark;
+import xyz.thastertyn.Types.Option;
+import xyz.thastertyn.Types.Options;
+import xyz.thastertyn.Types.Subject;
+import xyz.thastertyn.Types.Mark;
+
+public class Marks extends JecnaScrape {
+
+	// schoolYear, schoolYearId
+	private ArrayList<Subject> subjects;
+
+	// int znaci id roku, boolean jestli je jen prvni nebo i druhe pololeti
+	private Options schoolYearOptions;
+	private Options schoolHalfYearOptions;
+
+	public void download() throws IOException
+	{
+		download("https://www.spsejecna.cz/score/student");
+	}
+	
+	@Override
+	public void download(Choice choice) throws IOException
+	{
+		download(String.format(
+			"https://www.spsejecna.cz/score/student?schoolYearId=%s&schoolYearHalfId=%s", 
+			choice.getChoices().get(0), 
+			choice.getChoices().get(1)));
+	}
+
+	private void download(String url) throws IOException
+	{
+		schoolHalfYearOptions = new Options("Pololeti");
+		schoolYearOptions = new Options("Skolni R.");
+		
+		subjects = new ArrayList<>();
+		Document marksHTMLDocument = Downloader.download(url);
+
+		// Subjects stored as <tr>
+		Elements[] subjectRowsHTML = marksHTMLDocument
+			.select("table.score")
+			.select("tr")
+			.stream()
+			.map(Element::children)
+			.toArray(Elements[]::new);
+
+		int subjectIndex = 0;
+
+		for(int i = 1; i < subjectRowsHTML.length; i++)
+		{
+			String fullSubjectName = subjectRowsHTML[i].get(0).text();
+
+			// Attempt to shorten the subject name to the string in brackets
+			String shortSubjectName = Pattern
+				.compile("\\((.*?)\\)")
+				.matcher(fullSubjectName)
+				.results()
+				.findFirst()
+				.map(m -> m.group(1))
+				.orElse(fullSubjectName);
+
+			if(subjectRowsHTML[i].get(2).childrenSize() == 0) // Subject doesn't have final mark yet
+			{
+				subjects.add(new Subject(shortSubjectName));
+			}else{
+				String finalMark = subjectRowsHTML[i].get(2).select("a.scoreFinal").text();
+				subjects.add(new Subject(shortSubjectName, FinalMark.fromValue(finalMark)));
+			}
+
+			for(Element znamkaElement : subjectRowsHTML[i].get(1).select("a.score"))
+			{
+				int mark;
+				boolean isSmall = false;
+
+				String markText = znamkaElement.select("span.value").text();
+
+				mark = markText.matches("\\d") ?
+					Integer.parseInt(markText)
+					:
+					-1; // Most likely N (Nehodnocen)
+
+				// Small mark will be counted with smaller weight, compared to normal one
+				isSmall = znamkaElement.hasClass("scoreSmall");
+
+				subjects.get(subjectIndex).addMark(new Mark(mark, isSmall, markText));
+			}
+
+			subjectIndex++;
+		}
+
+		Element optionsPanel = marksHTMLDocument.selectFirst("form.listConfigure");
+		
+		Elements schoolYears = optionsPanel.select("select[id=schoolYearId]").select("option");
+		Elements halfYears = optionsPanel.select("select[id=schoolYearHalfId]").select("option");
+
+		
+		for(Element e : schoolYears)
+		{
+			boolean isDefault = e.hasAttr("selected");
+			schoolYearOptions.addOption(new Option(e.text(), e.attr("value"), isDefault));
+		}
+
+		for(Element e : halfYears)
+		{
+			boolean isDefault = e.hasAttr("selected");
+			schoolHalfYearOptions.addOption(new Option(e.text(), e.attr("value"), isDefault));
+		}
+	}
+	
+	public ArrayList<Subject> getSubjects()
+	{
+		return subjects;
+	}
+
+	public Options[] getOptions()
+	{
+		return new Options[] {schoolYearOptions, schoolHalfYearOptions};
+	}
+}

src/main/java/xyz/thastertyn/Scrape/OmluvnyList.java

@@ -1,42 +0,0 @@
-package xyz.thastertyn.Scrape;
-
-import java.io.IOException;
-import java.net.UnknownHostException;
-import java.util.ArrayList;
-
-import org.jsoup.nodes.Document;
-import org.jsoup.nodes.Element;
-import org.jsoup.select.Elements;
-
-import xyz.thastertyn.Tuples.Pair;
-
-public class OmluvnyList {
-	
-	private ArrayList<Pair<String, String>> data = new ArrayList<>();
-
-	public void downloadOmluvnyList() throws UnknownHostException, IOException
-	{
-		Document omluvnyListDokumentHTML = Downloader.download("https://www.spsejecna.cz/absence/student").get();
-
-		Elements omluvneListy = omluvnyListDokumentHTML.select("table.absence-list").select("tr");
-
-		for(Element e : omluvneListy)
-		{
-			String date = e.child(0).text();
-			String text = e.child(1).text();
-
-			data.add(new Pair<String, String>(date, text));
-		}
-	}
-
-	public ArrayList<Pair<String, String>> getData()
-	{
-		return data;
-	}
-
-	@Override
-	public String toString()
-	{
-		return (!data.isEmpty()) ? data.toString() : null;
-	}
-}

src/main/java/xyz/thastertyn/Scrape/Reports.java

@@ -0,0 +1,50 @@
+package xyz.thastertyn.Scrape;
+
+import java.io.IOException;
+import java.net.UnknownHostException;
+import java.util.ArrayList;
+
+import org.jsoup.nodes.Document;
+import org.jsoup.nodes.Element;
+import org.jsoup.select.Elements;
+
+import xyz.thastertyn.Types.Choice;
+import xyz.thastertyn.Types.Options;
+
+public class Reports extends JecnaScrape {
+	
+	ArrayList<xyz.thastertyn.Types.Reports> reportList = new ArrayList<>(); 
+
+	public void download() throws UnknownHostException, IOException
+	{
+		Document reportDoc = Downloader.download("https://www.spsejecna.cz/user-student/record-list");
+
+		Elements report = reportDoc.select("ul.list li");
+
+		for(Element e : report)
+		{
+			boolean isPositive = false;
+			String label = "";
+
+			Elements spans = e.select("li").select("a.item").select("span");
+
+			isPositive = spans.get(0).hasClass("sprite-icon-tick-16");
+			label = spans.get(1).select("span.label").text();
+
+			reportList.add(new xyz.thastertyn.Types.Reports(label, isPositive));
+		}
+	}
+
+	public ArrayList<xyz.thastertyn.Types.Reports> getSdeleni()
+	{
+		return reportList;
+	}
+
+	@Override
+	public Options[] getOptions() {
+		return null;
+	}
+
+	@Override
+	public void download(Choice choice) throws IOException {}
+}

src/main/java/xyz/thastertyn/Scrape/Rozvrh.java

@@ -1,79 +0,0 @@
-package xyz.thastertyn.Scrape;
-
-import java.io.IOException;
-import java.net.UnknownHostException;
-import java.util.Arrays;
-import java.util.HashSet;
-
-import org.jsoup.nodes.Document;
-import org.jsoup.nodes.Element;
-import org.jsoup.select.Elements;
-
-/**
- * Jeden radek v rozvrhu
- */
-public class Rozvrh {
-	
-	private String[][] rozvrh = new String[5][10];
-	
-	/**
-	 * Stahne rozvrh z www.spsejecna.cz a dale ho zpracuje do formy
-	 * se kterou da pracovat
-	 * @param Jsessionid ze stranek
-	 * @throws UnknownHostException kdyz neni pripojeni k internetu
-	 * @throws IOException ostatni exceptiony nejsou dulezite, tak jsou zahrnuty v jednom
-	 */
-	public void downloadRozvrh() throws UnknownHostException, IOException
-	{
-		Document rozvrhDokumentHTML = Downloader.download("https://www.spsejecna.cz/timetable/class").get();
-
-		Elements[] radkyRozvrhuHTML = rozvrhDokumentHTML
-			.select("table.timetable")
-			.select("tr")
-			.stream()
-			.map(Element::children)
-			.toArray(Elements[]::new);
-
-		for(int i = 1; i < 6; i++)
-		{
-			for(int j = 1; j < 11; j++)
-			{
-				String predmet = radkyRozvrhuHTML[i].get(j).select("span.subject").text();
-
-				// Predmety jako CEL jsou trikrat, staci ale jen jednou
-				String[] split = predmet.split(" ");
-				HashSet<String> set = new HashSet<>(Arrays.asList(split));
-				String pr = String.join("/", set);
-
-				rozvrh[i-1][j-1] = pr;
-			}
-		}
-	}
-
-	public void setPredmet(String pr, int d, int i)
-	{
-		rozvrh[d][i] = pr;
-	}
-
-	public String[][] getRozvrh()
-	{
-		return rozvrh;
-	}
-
-	@Override
-	public String toString()
-	{
-		String s = "";
-		for(String[] st : rozvrh)
-		{
-			s += ("| ");
-			for(String str : st)
-			{
-				s += String.format("%-5s", str) + " | ";
-			}
-			s += "\n";
-		}
-
-		return s;
-	}
-}

src/main/java/xyz/thastertyn/Scrape/Sdeleni.java

@@ -1,46 +0,0 @@
-package xyz.thastertyn.Scrape;
-
-import java.io.IOException;
-import java.net.UnknownHostException;
-import java.util.ArrayList;
-
-import org.jsoup.nodes.Document;
-import org.jsoup.nodes.Element;
-import org.jsoup.select.Elements;
-
-public class Sdeleni {
-	
-	ArrayList<String> sdeleniList = new ArrayList<>(); 
-
-	public void downloadSdeleni() throws UnknownHostException, IOException
-	{
-		Document sdeleniDoc = Downloader.download("https://www.spsejecna.cz/user-student/record-list").get();
-
-		Elements sdeleni = sdeleniDoc.select("ul.list li");
-
-		for(Element e : sdeleni)
-		{
-			boolean isPositive = false;
-			String label = "";
-
-			Elements spans = e.select("li").select("a.item").select("span");
-
-			isPositive = spans.get(0).hasClass("sprite-icon-tick-16");
-			label = spans.get(1).text();
-
-			if(isPositive)
-			{
-				label = "✅" + " " + label;
-			}else{
-				label = "❌" + " " + label;
-			}
-
-			sdeleniList.add(label);
-		}
-	}
-
-	public ArrayList<String> getSdeleni()
-	{
-		return sdeleniList;
-	}
-}

src/main/java/xyz/thastertyn/Scrape/Timetable.java

@@ -0,0 +1,112 @@
+package xyz.thastertyn.Scrape;
+
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.regex.Pattern;
+
+import org.jsoup.nodes.Document;
+import org.jsoup.nodes.Element;
+import org.jsoup.select.Elements;
+
+import xyz.thastertyn.Types.Choice;
+import xyz.thastertyn.Types.Option;
+import xyz.thastertyn.Types.Options;
+
+public class Timetable extends JecnaScrape {
+	
+	private xyz.thastertyn.Types.Timetable timetable;
+
+	private Options schoolYearOptions;
+	private Options timetableOptions;
+
+	@Override
+	public void download() throws IOException
+	{
+		download("https://www.spsejecna.cz/timetable/class");
+	}
+
+	@Override
+	public void download(Choice choice) throws IOException {
+		download(String
+		.format("https://www.spsejecna.cz/timetable/class?schoolYearId=%s&timetableId=%s",
+		choice.getChoices().get(0),
+		choice.getChoices().get(1)));
+	}
+
+	private void download(String url) throws IOException
+	{
+		schoolYearOptions = new Options("Skolni R.");
+		timetableOptions = new Options("Obdobi");
+
+		timetable = new xyz.thastertyn.Types.Timetable();
+		Document timetableHTMLDocument = Downloader.download(url);
+
+		Elements[] timetableHTMLRow = timetableHTMLDocument
+			.select("table.timetable")
+			.select("tr")
+			.stream()
+			.map(Element::children)
+			.toArray(Elements[]::new);
+
+		for(int i = 0; i < 5; i++) // Days
+		{
+			for(int j = 0; j < 10; j++) // Individual hours
+			{
+				String subject = timetableHTMLRow[i+1].get(j+1).select("span.subject").text();
+
+				// Subjects like CEL are thrice, even though everyone has them, make it single
+				String[] split = subject.split(" ");
+				HashSet<String> set = new HashSet<>(Arrays.asList(split));
+				String subj = String.join("/", set);
+
+				timetable.get(i).set(j, subj);
+			}
+		}
+
+		Element optionsPanel = timetableHTMLDocument.selectFirst("form.listConfigure");
+
+		Elements schoolYear = optionsPanel.select("select[id=schoolYearId]").select("option");
+		Elements timetableId = optionsPanel.select("select[id=timetableId]").select("option");
+
+		for(Element e : schoolYear)
+		{
+			boolean isDefault = e.hasAttr("selected");
+			schoolYearOptions.addOption(new Option(e.text(), e.attr("value"), isDefault));
+		}
+
+		for(Element e : timetableId)
+		{
+			// Try to extract the precise school years to make the text shorter
+			String optionDisplayText = Pattern
+				.compile("(Od .* do .*)")
+				.matcher(e.text())
+				.results()
+				.findFirst()
+				.map(m -> m.group(1))
+				.orElse(e.text()); // Just use the whole thing if it doesn't follow the pattern
+
+			boolean isDefault = e.hasAttr("selected"); // To prevent the last option added be picked as default always
+			timetableOptions.addOption(new Option(optionDisplayText, e.attr("value"), isDefault));
+		}
+	}
+
+	public xyz.thastertyn.Types.Timetable getRozvrh()
+	{
+		return timetable;
+	}
+
+	@Override
+	public String toString()
+	{
+		return (timetable == null) ?
+			"Nothing downloaded yet"
+			:
+			"All up and ready";
+	}
+
+	@Override
+	public Options[] getOptions() {
+		return new Options[] {schoolYearOptions, timetableOptions};
+	}
+}

src/main/java/xyz/thastertyn/Scrape/Znamky.java

@@ -1,127 +0,0 @@
-package xyz.thastertyn.Scrape;
-
-import java.io.IOException;
-import java.net.UnknownHostException;
-import java.util.ArrayList;
-import java.util.regex.Pattern;
-
-import org.jsoup.nodes.Document;
-import org.jsoup.nodes.Element;
-import org.jsoup.select.Elements;
-
-import xyz.thastertyn.Tuples.Pair;
-import xyz.thastertyn.Types.Choice;
-import xyz.thastertyn.Types.Option;
-import xyz.thastertyn.Types.Options;
-import xyz.thastertyn.Types.Predmet;
-import xyz.thastertyn.Types.Znamka;
-
-public class Znamky {
-
-	private boolean wasDownloaded;
-
-	// schoolYear, schoolYearId
-	private ArrayList<Predmet> predmety = new ArrayList<>();
-
-	// int znaci id roku, boolean jestli je jen prvni nebo i druhe pololeti
-	private Options schoolYearOptions = new Options("Skolni R.");
-	private Options schoolHalfYearOptions = new Options("Pololeti");
-
-	public void downloadZnamky() throws UnknownHostException, IOException
-	{
-		download("https://www.spsejecna.cz/score/student");
-	}
-	
-	public void downloadZnamky(Choice choice) throws UnknownHostException, IOException
-	{
-		download(String.format(
-			"https://www.spsejecna.cz/score/student?schoolYearId=%s&schoolYearHalfId=%s", 
-			choice.getChoices().get(0), 
-			choice.getChoices().get(1)));
-	}
-
-	private void download(String url) throws UnknownHostException, IOException
-	{
-		//String url = 
-		Document znamkyDokumentHTML = Downloader.download(url).get();
-
-		// Predmety ulozene v <tr>
-		Elements[] radkyPredmetuHTML = znamkyDokumentHTML
-			.select("table.score")
-			.select("tr")
-			.stream()
-			.map(Element::children)
-			.toArray(Elements[]::new);
-
-		int subjectIndex = 0;
-
-		for(int i = 1; i < radkyPredmetuHTML.length; i++)
-		{
-			String plnyNazevPredmetu = radkyPredmetuHTML[i].get(0).text();
-
-			String jmenoPredmetu = Pattern
-				.compile("\\((.*?)\\)")
-				.matcher(plnyNazevPredmetu)
-				.results()
-				.findFirst()
-				.map(m -> m.group(1))
-				.orElse(plnyNazevPredmetu);
-
-			predmety.add(new Predmet(jmenoPredmetu));
-
-			for(Element znamkaElement : radkyPredmetuHTML[i].get(1).select("a.score"))
-			{
-				int znamka;
-				boolean jeMala = false;
-
-				String textZnamky = znamkaElement.select("span.value").text();
-
-				znamka = textZnamky.matches("\\d") ?
-					Integer.parseInt(textZnamky) :
-					-1; // Nejspis se jedna o N (Nehodnocen)
-
-				// Mala znamka se bude pocitat jako polovicni vaha
-				jeMala = znamkaElement.hasClass("scoreSmall");
-
-				predmety.get(subjectIndex).addZnamka(new Znamka(znamka, jeMala, textZnamky));
-			}
-
-			subjectIndex++;
-		}
-
-		Element optionsPanel = znamkyDokumentHTML.selectFirst("form.listConfigure");
-		
-		Elements skolniRoky = optionsPanel.select("select[id=schoolYearId]").select("option");
-		Elements pololeti = optionsPanel.select("select[id=schoolYearHalfId]").select("option");
-
-		for(Element e : skolniRoky)
-		{
-			schoolYearOptions.addOption(new Option(e.text(), e.attr("value")));
-		}
-
-		for(Element e : pololeti)
-		{
-			schoolHalfYearOptions.addOption(new Option(e.text(), e.attr("value")));
-		}
-
-		wasDownloaded = true;
-	}
-	
-	public ArrayList<Predmet> getPredmety()
-	{
-		return predmety;
-	}
-
-	public Pair<Options, Options> getOptions()
-	{
-		return new Pair<Options, Options>(schoolYearOptions, schoolHalfYearOptions);
-	}
-
-	@Override
-	public String toString()
-	{
-		return (wasDownloaded) ?
-			"All up and ready for use" :
-			"Nothing downloaded yet";
-	}
-}

src/main/java/xyz/thastertyn/Tuples/Pair.java

@@ -1,54 +0,0 @@
-package xyz.thastertyn.Tuples;
-
-/**
- * Ekvitalent Tuplu, ktery neni zabudovan v jave
- */
-public class Pair<T1, T2> {
-	
-	
-	private T1 value0;
-	private T2 value1;
-
-	public Pair(T1 value0, T2 value1)
-	{
-		this.value0 = value0;
-		this.value1 = value1;
-	}
-	
-	public Pair()
-	{
-
-	}
-
-	public void put(T1 value0, T2 value1)
-	{
-		this.value0 = value0;
-		this.value1 = value1;
-	}
-
-	public T1 getValue0()
-	{
-		return value0;
-	}
-
-	public T2 getValue1()
-	{
-		return value1;
-	}
-
-	public void setValue0(T1 value0)
-	{
-		this.value0 = value0;
-	}
-
-	public void setValue1(T2 value1)
-	{
-		this.value1 = value1;
-	}
-
-	@Override
-	public String toString()
-	{
-		return "[" + value0 + ", " + value1 + "]";
-	}
-}

src/main/java/xyz/thastertyn/Tuples/Triplet.java

@@ -1,66 +0,0 @@
-package xyz.thastertyn.Tuples;
-
-/**
- * Ekvitalent Tuplu, ktery neni zabudovan v jave
- */
-public class Triplet<T1, T2, T3> {
-	
-	private T1 value0;
-	private T2 value1;
-	private T3 value2;
-
-	public Triplet(T1 value0, T2 value1, T3 value2)
-	{
-		this.value0 = value0;
-		this.value1 = value1;
-		this.value2 = value2;
-	}
-	
-	public Triplet()
-	{
-
-	}
-
-	public void put(T1 value0, T2 value1, T3 value2)
-	{
-		this.value0 = value0;
-		this.value1 = value1;
-		this.value2 = value2;
-	}
-
-	public T1 getValue0()
-	{
-		return value0;
-	}
-
-	public T2 getValue1()
-	{
-		return value1;
-	}
-
-	public T3 getValue2()
-	{
-		return value2;	
-	}
-
-	public void setValue0(T1 value0)
-	{
-		this.value0 = value0;
-	}
-
-	public void setValue1(T2 value1)
-	{
-		this.value1 = value1;
-	}
-
-	public void setValue2(T3 value2)
-	{
-		this.value2 = value2;
-	}
-
-	@Override
-	public String toString()
-	{
-		return "[" + value0 + ", " + value1 + "," + value2 + "]";
-	}
-}

src/main/java/xyz/thastertyn/Types/AbsenceList.java

@@ -0,0 +1,31 @@
+package xyz.thastertyn.Types;
+
+public class AbsenceList {
+	
+	private String date;
+	private String description;
+
+	public AbsenceList(String date, String description)
+	{
+		this.date = date;
+		this.description = description;
+	}
+
+	public String getDate() {
+		return date;
+	}
+
+	public void setDate(String datum) {
+		this.date = datum;
+	}
+
+	public String getDescription() {
+		return description;
+	}
+
+	public void setDescription(String popis) {
+		this.description = popis;
+	}
+
+	
+}

src/main/java/xyz/thastertyn/Types/Choice.java

@@ -1,17 +1,20 @@
 package xyz.thastertyn.Types;
 
-import java.util.ArrayList;
-import java.util.Arrays;
+import java.util.List;
 
+/**
+ * A choice parsed from dropdowns on the site. Usually contains something like school year or half year id
+ */
 public class Choice {
 	
-	private ArrayList<String> choices;
-	public Choice(String... choices)
+	private List<String> choices;
+
+	public Choice(List<String> c)
 	{
-		this.choices.addAll(Arrays.asList(choices));
+		this.choices = c;
 	}
 
-	public ArrayList<String> getChoices()
+	public List<String> getChoices()
 	{
 		return choices;
 	}

src/main/java/xyz/thastertyn/Types/Credentials.java

@@ -0,0 +1,23 @@
+package xyz.thastertyn.Types;
+
+/**
+ * Stores username and password
+ */
+public class Credentials {
+	
+	private String username;
+	private String password;
+	
+	public Credentials(String username, String password) {
+		this.username = username;
+		this.password = password;
+	}
+
+	public String getUsername() {
+		return username;
+	}
+
+	public String getPassword() {
+		return password;
+	}
+}

src/main/java/xyz/thastertyn/Types/DayOfTimetable.java

@@ -0,0 +1,19 @@
+package xyz.thastertyn.Types;
+
+/**
+ * Stores a single day from the timetable as an array of strings
+ */
+public class DayOfTimetable {
+	
+	private String[] subjects = new String[10];
+
+	public String get(int index)
+	{
+		return subjects[index];
+	}
+
+	public void set(int index, String subject)
+	{
+		subjects[index] = subject;
+	}
+}

src/main/java/xyz/thastertyn/Types/FinalMark.java

@@ -0,0 +1,75 @@
+package xyz.thastertyn.Types;
+
+/**
+ * Stores the final mark from a subject
+ */
+public class FinalMark{
+	public static final FinalMark VYBORNY = new FinalMark(1, "1");
+	public static final FinalMark CHVALITEBNY = new FinalMark(2, "2");
+	public static final FinalMark DOBRY = new FinalMark(3, "3");
+	public static final FinalMark DOSTATECNY = new FinalMark(4, "4");
+	public static final FinalMark NEDOSTATECNY = new FinalMark(5, "5");
+
+	public static final FinalMark NOTHING = new FinalMark(0, "");
+
+	public static final FinalMark NEHODNOCEN = new FinalMark(-1, "N");
+	public static final FinalMark NAPOMENUT_ZA_NEKLASIFIKACI = new FinalMark(-2, "N?");
+
+	public static final FinalMark UVOLNEN = new FinalMark(-3, "U");
+
+	public static final FinalMark NAPOMENUT_ZA_ZAOSTAVANI = new FinalMark(-4, "5?");
+
+	public static final FinalMark UNKNOWN = new FinalMark(-5, "?");
+	// #94701b
+	private double value;
+	private String stringValue;
+
+	private FinalMark(double value, String stringValue)
+	{
+		this.stringValue = stringValue;
+		this.value = value;
+	}
+
+	public FinalMark(double value)
+	{
+		this.value = value;
+		this.stringValue = String.format("%.2f", value);
+	}
+
+	public double getValue()
+	{
+		return value;
+	}
+
+	@Override
+	public String toString()
+	{
+		return stringValue;
+	}
+	
+	public static FinalMark fromValue(String value)
+	{
+		if(!value.matches("[0-9]"))
+		{
+			return switch (value) {
+				case "N" -> NEHODNOCEN;
+				case "N?" -> NAPOMENUT_ZA_NEKLASIFIKACI;
+				case "5?" -> NAPOMENUT_ZA_ZAOSTAVANI;
+				case "U" -> UVOLNEN;
+				default -> UNKNOWN;
+			};
+		}else{
+			int numericValue = Integer.parseInt(value);
+
+			return switch (numericValue) {
+				case 1 -> VYBORNY;
+				case 2 -> CHVALITEBNY;
+				case 3 -> DOBRY;
+				case 4 -> DOSTATECNY;
+				case 5 -> NEDOSTATECNY;
+				default -> UNKNOWN;
+			};
+		}
+	}
+}
+

src/main/java/xyz/thastertyn/Types/InputtedCredentials.java

@@ -0,0 +1,30 @@
+package xyz.thastertyn.Types;
+
+/**
+ * Wrapper around credentials with the change of having a boolean for whether the user wants to save the credentials or not
+ */
+public class InputtedCredentials extends Credentials {
+
+	private boolean save;
+	
+	public InputtedCredentials(String username, String password, boolean save)
+	{
+		super(username, password);
+		this.save = save;
+	}
+
+	public InputtedCredentials(Credentials credentials, boolean save)
+	{
+		super(credentials.getUsername(), credentials.getPassword());
+		this.save = save;
+	}
+
+	public Credentials getCredentials()
+	{
+		return new Credentials(getUsername(), getPassword());
+	}
+
+	public boolean save() {
+		return save;
+	}
+}

src/main/java/xyz/thastertyn/Types/Mark.java

@@ -0,0 +1,34 @@
+package xyz.thastertyn.Types;
+
+/**
+ * A single mark. holds numeric value, weight - small = 1, normal 2
+ */
+public class Mark {
+
+	private int mark;
+	private String markAsText;
+	private int weight;
+
+	public Mark(int mark, boolean isSmall, String markAsText)
+	{
+		this.mark = mark;
+		this.weight = (isSmall) ? 1 : 2;
+		this.markAsText = markAsText;
+	}
+
+	public int getMark()
+	{
+		return mark;
+	}
+
+	public int getWeight()
+	{
+		return weight;
+	}
+
+	@Override
+	public String toString()
+	{
+		return markAsText;
+	}
+}

src/main/java/xyz/thastertyn/Types/OmluvnyList.java

@@ -1,13 +0,0 @@
-package xyz.thastertyn.Types;
-
-public class OmluvnyList {
-	
-	private String datum;
-	private String popis;
-
-	public OmluvnyList(String datum, String popis)
-	{
-		this.datum = datum;
-		this.popis = popis;
-	}
-}

src/main/java/xyz/thastertyn/Types/Option.java

@@ -1,27 +1,27 @@
 package xyz.thastertyn.Types;
 
+/**
+ * A single option. Holds a text description, the thing displayed and a string value, the one used in url
+ */
 public class Option {
 	
-	private String text;
+	private String displayText;
 	private String value;
-	public Option(String text, String value) {
-		this.text = text;
+	private boolean isDefault;
+
+	public Option(String text, String value, boolean isDefault) {
+		this.displayText = text;
 		this.value = value;
+		this.isDefault = isDefault;
 	}
-	public String getText() {
-		return text;
-	}
-	public void setText(String text) {
-		this.text = text;
+	public boolean isDefault() {
+		return isDefault;
 	}
 	public String getValue() {
 		return value;
 	}
-	public void setValue(String value) {
-		this.value = value;
-	}
 	@Override
 	public String toString() {
-		return text;
+		return displayText;
 	}
 }

src/main/java/xyz/thastertyn/Types/Options.java

@@ -2,6 +2,9 @@ package xyz.thastertyn.Types;
 
 import java.util.ArrayList;
 
+/**
+ * Holds all possible a single dropdown on the website can have.
+ */
 public class Options {
 	
 	private ArrayList<Option> options = new ArrayList<>(); 

src/main/java/xyz/thastertyn/Types/Predmet.java

@@ -1,56 +0,0 @@
-package xyz.thastertyn.Types;
-
-import java.util.ArrayList;
-
-public class Predmet {
-	
-	private ArrayList<Znamka> znamky = new ArrayList<>();
-	private String jmenoPredmetu = "";
-
-	private int vyslednaZnamka = 0;
-
-	public Predmet(String jmenoPredmetu)
-	{
-		this.jmenoPredmetu = jmenoPredmetu;
-	}
-
-	public void addZnamka(Znamka novaZnamka)
-	{
-		znamky.add(novaZnamka);
-	}
-
-	public double getPrumer()
-	{
-		if(vyslednaZnamka != 0)
-		{
-			return vyslednaZnamka;
-		}
-		
-		if(znamky.isEmpty())
-		{
-			return 0;
-		}
-
-		int celkem = znamky
-			.stream()
-			.mapToInt((z) -> z.getZnamka() * z.getVaha())
-			.sum();
-
-		int vahy = znamky
-			.stream()
-			.mapToInt((z) -> z.getVaha())
-			.sum();
-
-		return (double) celkem / vahy;
-	}
-
-	public String getJmenoPredmetu()
-	{
-		return jmenoPredmetu;
-	}
-
-	public ArrayList<Znamka> getZnamky()
-	{
-		return znamky;
-	}
-}

src/main/java/xyz/thastertyn/Types/Reports.java

@@ -0,0 +1,26 @@
+package xyz.thastertyn.Types;
+
+/**
+ * Reports for parents. Holds a string of text and a boolean for positivity to determine color for display
+ */
+public class Reports {
+	
+	private String text;
+	private boolean isPositive;
+
+	public Reports(String text, boolean isPositive)
+	{
+		this.text = text;
+		this.isPositive = isPositive;
+	}
+
+	public boolean isPositive()
+	{
+		return isPositive;
+	}
+
+	public String getText()
+	{
+		return text;
+	}
+}

src/main/java/xyz/thastertyn/Types/Subject.java

@@ -0,0 +1,80 @@
+package xyz.thastertyn.Types;
+
+import java.util.ArrayList;
+
+/**
+ * Subject for marks. Holds a name, all its marks and the final mark
+ */
+public class Subject {
+	
+	private ArrayList<Mark> marks = new ArrayList<>();
+	private String subjectName = "";
+	private boolean isFinal = false;
+
+	private FinalMark finalMark = FinalMark.UNKNOWN;
+
+	public Subject(String subjectName)
+	{
+		this.subjectName = subjectName;
+	}
+
+	public Subject(String subjectName, FinalMark finalMark)
+	{
+		this.subjectName = subjectName;
+		this.finalMark = finalMark;
+		isFinal = true;
+	}
+
+	public void addMark(Mark newMark)
+	{
+		marks.add(newMark);
+	}
+
+	private void calculateFinalMark()
+	{
+		if(marks.isEmpty())
+		{
+			this.finalMark = FinalMark.NOTHING;
+		}else{
+			int total = marks
+			.stream()
+			.mapToInt((z) -> z.getMark() * z.getWeight())
+			.sum();
+	
+			int weight = marks
+				.stream()
+				.mapToInt((z) -> z.getWeight())
+				.sum();
+	
+			double finalMark = ((double) total / weight);
+	
+			this.finalMark = new FinalMark(finalMark);
+		}
+	}
+
+	public FinalMark getFinalMark()
+	{
+		if(!isFinal)
+		{
+			calculateFinalMark();
+		}
+
+		return finalMark;
+	}
+
+	public boolean isFinal()
+	{
+		return isFinal;
+	}
+
+	public String getSubjectName()
+	{
+		return subjectName;
+	}
+
+	public ArrayList<Mark> getMarks()
+	{
+		return marks;
+	}
+}
+

src/main/java/xyz/thastertyn/Types/Timetable.java

@@ -0,0 +1,22 @@
+package xyz.thastertyn.Types;
+
+/**
+ * Whole timetable. holds an array of {@link DayOfTimetable} for each day
+ */
+public class Timetable {
+	
+	private DayOfTimetable[] timetable = new DayOfTimetable[5];
+
+	public Timetable()
+	{
+		for(int i = 0; i < timetable.length; i++)
+		{
+			timetable[i] = new DayOfTimetable();
+		}
+	}
+
+	public DayOfTimetable get(int day)
+	{
+		return timetable[day];
+	}
+}

src/main/java/xyz/thastertyn/Types/Znamka.java

@@ -1,30 +0,0 @@
-package xyz.thastertyn.Types;
-
-public class Znamka {
-
-	private int znamka;
-	private String znamkaJakoText;
-	private int vaha;
-
-	public Znamka(int znamka, boolean malaZnamka, String znamkaJakoText/*, String text, String datum*/)
-	{
-		this.znamka = znamka;
-		this.vaha = (malaZnamka) ? 1 : 2;
-		this.znamkaJakoText = znamkaJakoText;
-	}
-
-	public int getZnamka()
-	{
-		return znamka;
-	}
-
-	public int getVaha()
-	{
-		return vaha;
-	}
-
-	public String getText()
-	{
-		return znamkaJakoText;
-	}
-}

src/main/java/xyz/thastertyn/UserInterface/Content/AbsenceList.java

@@ -0,0 +1,41 @@
+package xyz.thastertyn.UserInterface.Content;
+
+import java.util.ArrayList;
+
+import com.googlecode.lanterna.gui2.Direction;
+import com.googlecode.lanterna.gui2.GridLayout;
+import com.googlecode.lanterna.gui2.Label;
+import com.googlecode.lanterna.gui2.LinearLayout;
+import com.googlecode.lanterna.gui2.Panel;
+
+import xyz.thastertyn.UserInterface.Listeners.UpdateListener;
+
+public class AbsenceList extends JecnaContent{
+	
+	private xyz.thastertyn.Scrape.AbsenceList omluvnyList = new xyz.thastertyn.Scrape.AbsenceList();
+
+	public AbsenceList(UpdateListener listener)
+	{
+		super(listener);
+		this.mainPanel = new Panel()
+			.setLayoutManager(new GridLayout(1));
+		this.borderLabel = new Label("Omluvny L.");
+		super.scraper = omluvnyList;
+	}
+
+	@Override
+	protected void setGUI()
+	{
+		this.mainPanel.removeAllComponents();
+		ArrayList<xyz.thastertyn.Types.AbsenceList> a = omluvnyList.getData();
+
+		Panel content = new Panel()
+			.setLayoutManager(new LinearLayout(Direction.VERTICAL))
+			.addTo(mainPanel);
+
+		for(xyz.thastertyn.Types.AbsenceList omluvnyList : a)
+		{
+			content.addComponent(new Label(omluvnyList.getDate() + " - " + omluvnyList.getDescription()));
+		}
+	}
+}

src/main/java/xyz/thastertyn/UserInterface/Content/Canteen.java

@@ -1,5 +1,5 @@
 package xyz.thastertyn.UserInterface.Content;
 
-public class Jidelna {
+public class Canteen {
 	
 }

src/main/java/xyz/thastertyn/UserInterface/Content/JecnaContent.java

@@ -1,22 +1,113 @@
 package xyz.thastertyn.UserInterface.Content;
 
+import java.io.IOException;
+
+import com.googlecode.lanterna.gui2.Label;
+import com.googlecode.lanterna.gui2.Panel;
 import com.googlecode.lanterna.gui2.WindowBasedTextGUI;
 
+import xyz.thastertyn.Scrape.JecnaScrape;
 import xyz.thastertyn.Types.Choice;
+import xyz.thastertyn.UserInterface.Dialogs.OptionsDialog;
+import xyz.thastertyn.UserInterface.Listeners.UpdateListener;
 
-import com.googlecode.lanterna.gui2.Panel;
-import com.googlecode.lanterna.gui2.Label;
 
 /**
  * Wrapper to include all classes that deal with content in some way
  */
 public abstract class JecnaContent {
 	
-	public abstract Panel getPanel();
-	public abstract void downloadDefault();
-	protected abstract void download(Choice choice);
-	public abstract boolean hasStarted();
-	public abstract Label getLabel();
-	public abstract void showOptions(final WindowBasedTextGUI textGUI);
+	protected Panel mainPanel;
+	protected boolean hasStarted = false;
+	protected Label borderLabel;
+	protected UpdateListener listener;
+	protected JecnaScrape scraper;
+
+	/**
+	 * Prepares it's content to be display by gettings the panel from {@link #getPanel()}
+	 */
 	protected abstract void setGUI();
+
+	public JecnaContent(UpdateListener listener)
+	{
+		this.listener = listener;
+	}
+	
+	/**
+	 * Call its scraper class to download content using the provided choice
+	 * @param choice
+	 * @throws IOException in case download fails in some way
+	 */
+	protected void download(Choice choice) throws IOException
+	{
+		if(choice != null)
+		{
+			scraper.download(choice);
+			setGUI();
+			mainPanel.setPreferredSize(mainPanel.calculatePreferredSize());
+			listener.updatePanel(); 
+		}else{
+			scraper.download();
+			setGUI();
+		}
+		
+		hasStarted = true;
+	}
+
+	/**
+	 * Tells scraper to download the default content and parse it
+	 * @throws IOException
+	 */
+	public void downloadDefault() throws IOException
+	{
+		download(null);
+	}
+
+	/**
+	 * Creates a {@link OptionsDialog} to display its options
+	 * @param textGUI where to display the dialog
+	 * @throws IOException upon ok, conent is immediatelly downloaded using {@link #download( choice_from_dialog )}
+	 */
+	public void showOptions(WindowBasedTextGUI textGUI) throws IOException {
+
+		if(scraper.getOptions() == null)
+		{
+			return;
+		}
+
+		OptionsDialog dialog = new OptionsDialog(scraper.getOptions());
+
+		Choice choice = dialog.showDialog(textGUI);
+
+		if(choice != null)
+		{
+			download(choice);
+		}
+	}
+
+	/**
+	 * Returns the panel where the content should be held and already arranged for display
+	 * @return
+	 */
+	public Panel getPanel()
+	{
+		return this.mainPanel;
+	}
+
+	/**
+	 * Check if something has been downloaded already
+	 * @return true or false depending on the download state
+	 */
+	public boolean hasStarted()
+	{
+		return this.hasStarted;
+	}
+
+	/**
+	 * Returns a label with the title text like "Známky", etc.
+	 */
+	public Label getLabel()
+	{
+		return this.borderLabel;
+	}
 }

src/main/java/xyz/thastertyn/UserInterface/Content/Marks.java

@@ -0,0 +1,117 @@
+package xyz.thastertyn.UserInterface.Content;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+
+import com.googlecode.lanterna.TextColor;
+import com.googlecode.lanterna.TextColor.ANSI;
+import com.googlecode.lanterna.graphics.SimpleTheme;
+import com.googlecode.lanterna.gui2.Direction;
+import com.googlecode.lanterna.gui2.GridLayout;
+import com.googlecode.lanterna.gui2.Label;
+import com.googlecode.lanterna.gui2.LayoutData;
+import com.googlecode.lanterna.gui2.LinearLayout;
+import com.googlecode.lanterna.gui2.Panel;
+
+import xyz.thastertyn.Types.FinalMark;
+import xyz.thastertyn.Types.Subject;
+import xyz.thastertyn.Types.Mark;
+import xyz.thastertyn.UserInterface.Listeners.UpdateListener;
+
+public class Marks extends JecnaContent {
+
+	private final TextColor.RGB VYBORNY = new TextColor.RGB(85,212,0);
+	private final TextColor.RGB CHVALITEBNY = new TextColor.RGB(196,224,80);
+	private final TextColor.RGB DOBRY = new TextColor.RGB(255,213,42);
+	private final TextColor.RGB DOSTATECNY = new TextColor.RGB(255,102,0);
+	private final TextColor.RGB NEDOSTATECNY = new TextColor.RGB(255,48,48);
+	private final TextColor.RGB NEHODNOCEN = new TextColor.RGB(0,0,0);
+
+	private final LayoutData ALIGN_LEFT = GridLayout.createLayoutData(
+		GridLayout.Alignment.BEGINNING,
+		GridLayout.Alignment.BEGINNING,
+		false,
+		false);
+
+	private final LayoutData ALIGN_RIGHT = GridLayout.createLayoutData(
+		GridLayout.Alignment.END,
+		GridLayout.Alignment.BEGINNING,
+		true,
+		false);
+	
+	private xyz.thastertyn.Scrape.Marks marks = new xyz.thastertyn.Scrape.Marks();
+
+	public Marks(UpdateListener listener)
+	{
+		super(listener);
+
+		this.mainPanel = new Panel()
+			.setLayoutManager(new GridLayout(3));
+		this.borderLabel = new Label("Znamky");
+		super.scraper = this.marks;
+	}
+
+	@Override
+	protected void setGUI()
+	{
+		mainPanel.removeAllComponents();
+	
+		ArrayList<Subject> subjects = marks.getSubjects();
+
+		// Colors are used a lot and instead of referencing them in lengthy lines, this seems shorter
+		HashMap<Integer, SimpleTheme> colors = new HashMap<>();
+		colors.put(1, new SimpleTheme(ANSI.BLACK, VYBORNY));
+		colors.put(2, new SimpleTheme(ANSI.BLACK, CHVALITEBNY));
+		colors.put(3, new SimpleTheme(ANSI.BLACK, DOBRY));
+		colors.put(4, new SimpleTheme(ANSI.BLACK, DOSTATECNY));
+		colors.put(5, new SimpleTheme(ANSI.BLACK, NEDOSTATECNY));
+		colors.put(-1, new SimpleTheme(ANSI.WHITE, NEHODNOCEN));
+		colors.put(-2, new SimpleTheme(ANSI.WHITE, NEHODNOCEN));
+
+		// Column for subject names
+		Panel subjectNames = new Panel()
+		.setLayoutManager(new LinearLayout(Direction.VERTICAL))
+		.setLayoutData(ALIGN_LEFT)
+		.addTo(mainPanel);
+	
+		// Column for marks
+		Panel marks = new Panel()
+		.setLayoutManager(new LinearLayout(Direction.VERTICAL))
+		.setLayoutData(ALIGN_LEFT)
+		.addTo(mainPanel);
+
+		// Column for final mark
+		Panel finalMarks = new Panel()
+		.setLayoutManager(new LinearLayout(Direction.VERTICAL))
+		.setLayoutData(ALIGN_RIGHT)
+		.addTo(mainPanel);
+
+		for(Subject subject : subjects)
+		{
+			Panel individualMarks = new Panel()
+			.setLayoutManager(new LinearLayout(Direction.HORIZONTAL))
+			.addTo(marks);
+
+			if(subject.getMarks().isEmpty())
+			{
+				individualMarks.addComponent(new Label(""));
+			}
+
+			for(Mark mark : subject.getMarks())
+			{
+				Label markLabel = new Label(mark.toString());
+				markLabel.setTheme(colors.get(mark.getMark()));
+				individualMarks.addComponent(markLabel);
+			}
+			
+			FinalMark finalMark = subject.getFinalMark();
+
+			Label vysl = new Label(finalMark.toString());
+			
+			vysl.setTheme(colors.get((int) Math.round(finalMark.getValue())));
+			
+			subjectNames.addComponent(new Label(subject.getSubjectName()));
+			finalMarks.addComponent(vysl);
+		}
+	}
+}

src/main/java/xyz/thastertyn/UserInterface/Content/OmluvnyList.java

@@ -1,76 +0,0 @@
-package xyz.thastertyn.UserInterface.Content;
-
-import java.io.IOException;
-import java.net.UnknownHostException;
-import java.util.ArrayList;
-
-import com.googlecode.lanterna.gui2.Label;
-import com.googlecode.lanterna.gui2.Panel;
-import com.googlecode.lanterna.gui2.WindowBasedTextGUI;
-
-import xyz.thastertyn.Tuples.Pair;
-import xyz.thastertyn.Types.Choice;
-
-public class OmluvnyList extends JecnaContent{
-	
-	private Panel omluvnyPanel = new Panel();
-	private Label borderLabel = new Label("Omluvny L.");
-	private xyz.thastertyn.Scrape.OmluvnyList omluvnyList = new xyz.thastertyn.Scrape.OmluvnyList();
-
-	private boolean hasStarted = false;
-
-	@Override
-	public void downloadDefault()
-	{
-		download(null);
-	}
-
-	@Override
-	protected void download(Choice choice)
-	{
-		try{
-			omluvnyList.downloadOmluvnyList();
-			setGUI();
-
-			hasStarted = true;
-		}catch(UnknownHostException e)
-		{
-			// omluvnyPanel.addComponent(new Label("A connection error occurred"));
-		}catch(IOException e)
-		{
-			// omluvnyPanel.addComponent(new Label("An error occurred"));
-		}
-	}
-
-	@Override
-	protected void setGUI()
-	{
-		ArrayList<Pair<String, String>> a = omluvnyList.getData();
-
-		for(Pair<String, String> p : a)
-		{
-			omluvnyPanel.addComponent(new Label(p.getValue0() + " - " + p.getValue1()));
-		}
-	}
-
-	@Override
-	public Panel getPanel() {
-		return omluvnyPanel;
-	}
-	
-	@Override
-	public boolean hasStarted() {
-		return hasStarted;
-	}
-
-	@Override
-	public Label getLabel() {
-		return borderLabel;
-	}
-
-	@Override
-	public void showOptions(WindowBasedTextGUI textGUI) {
-		// TODO Auto-generated method stub
-		throw new UnsupportedOperationException("Unimplemented method 'getOptions'");
-	}
-}

src/main/java/xyz/thastertyn/UserInterface/Content/Reports.java

@@ -0,0 +1,56 @@
+package xyz.thastertyn.UserInterface.Content;
+
+import java.util.ArrayList;
+
+import com.googlecode.lanterna.TextColor.ANSI;
+import com.googlecode.lanterna.gui2.Direction;
+import com.googlecode.lanterna.gui2.GridLayout;
+import com.googlecode.lanterna.gui2.Label;
+import com.googlecode.lanterna.gui2.LinearLayout;
+import com.googlecode.lanterna.gui2.Panel;
+
+import xyz.thastertyn.UserInterface.Listeners.UpdateListener;
+
+public class Reports extends JecnaContent {
+	
+	private xyz.thastertyn.Scrape.Reports reports = new xyz.thastertyn.Scrape.Reports();
+	
+	public Reports(UpdateListener listener)
+	{
+		super(listener);
+		this.mainPanel = new Panel().setLayoutManager(new GridLayout(1)
+			.setLeftMarginSize(1)
+			.setRightMarginSize(1));
+		this.borderLabel = new Label("Sdeleni R.");
+		super.scraper = this.reports;
+	}
+
+	@Override
+	protected void setGUI()
+	{
+		mainPanel.removeAllComponents();
+
+		ArrayList<xyz.thastertyn.Types.Reports> reportsList = reports.getSdeleni();
+
+		for(xyz.thastertyn.Types.Reports reports : reportsList)
+		{
+			Panel row = new Panel().setLayoutManager(new LinearLayout(Direction.HORIZONTAL));
+			
+			Label checkmark = new Label("");
+			Label text = new Label(reports.getText());
+
+			if(reports.isPositive())
+			{
+				checkmark.setForegroundColor(ANSI.GREEN);
+				checkmark.setText("✓");
+			}else{
+				checkmark.setForegroundColor(ANSI.RED);
+				checkmark.setText("✗");
+			}
+
+			row.addComponent(checkmark)
+				.addComponent(text)
+				.addTo(mainPanel);
+		}
+	}
+}

src/main/java/xyz/thastertyn/UserInterface/Content/Rozvrh.java

@@ -1,94 +0,0 @@
-package xyz.thastertyn.UserInterface.Content;
-
-import java.io.IOException;
-import java.net.UnknownHostException;
-
-import com.googlecode.lanterna.gui2.Label;
-import com.googlecode.lanterna.gui2.Panel;
-import com.googlecode.lanterna.gui2.WindowBasedTextGUI;
-import com.googlecode.lanterna.gui2.table.Table;
-
-import xyz.thastertyn.Types.Choice;
-
-public class Rozvrh extends JecnaContent {
-	
-	private Panel rozvrhPanel = new Panel();
-	private Label borderLabel = new Label("Rozvrh");
-	private xyz.thastertyn.Scrape.Rozvrh rozvrh = new xyz.thastertyn.Scrape.Rozvrh();
-
-	private boolean hasStarted = false;
-
-	private String[] labels = {"Den", "7:30-8:15", "8:25-9:10", "9:20-10:05", "10:20-11:05", "11:15-12:00", "12:10-12:55", "13:05-13:50", "14:00-14:45", "14:55-15:40", "15:50-16:35"};
-	//private String[] labels = {"Den", "1.", "2.", "3.", "4.", "5.", "6.", "7.", "8.", "9.", "10."};
-
-	String[] daysLabels = {"PO", "UT", "ST", "CT", "PA"};
-	
-	Table<String> t = new Table<>(labels);
-
-	@Override
-	public void downloadDefault()
-	{
-		download(null);
-	}
-
-	@Override
-	protected void download(Choice choice)
-	{
-		try{
-			rozvrh.downloadRozvrh();
-			setGUI();
-
-			hasStarted = true;
-		}catch(UnknownHostException e)
-		{
-			rozvrhPanel.addComponent(new Label("A connection error occurred"));
-		}catch(IOException e)
-		{
-			rozvrhPanel.addComponent(new Label("An error occurred"));
-		}
-	}
-
-	@Override
-	protected void setGUI()
-	{
-		String[][] rozvrhArray = rozvrh.getRozvrh();
-	
-		String[] den = new String[11];
-
-		for(int i = 0; i < rozvrhArray.length; i++)
-		{
-			den[0] = daysLabels[i];
-			for(int j = 1; j < rozvrhArray[i].length + 1; j++)
-			{
-				den[j] = (rozvrhArray[i][j - 1].isBlank()) ? " - " : rozvrhArray[i][j - 1];
-			}
-
-			t.getTableModel().addRow(den);
-		}
-		rozvrhPanel.addComponent(t);
-	}
-
-	@Override
-	public boolean hasStarted()
-	{
-		return hasStarted;
-	}
-
-	@Override
-	public Panel getPanel()
-	{
-		return rozvrhPanel;
-	}
-
-	@Override
-	public Label getLabel()
-	{
-		return borderLabel;
-	}
-
-	@Override
-	public void showOptions(WindowBasedTextGUI textGUI) {
-		// TODO Auto-generated method stub
-		throw new UnsupportedOperationException("Unimplemented method 'getOptions'");
-	}
-}

src/main/java/xyz/thastertyn/UserInterface/Content/Sdeleni.java

@@ -1,81 +0,0 @@
-package xyz.thastertyn.UserInterface.Content;
-
-
-import java.io.IOException;
-import java.net.UnknownHostException;
-import java.util.ArrayList;
-
-import com.googlecode.lanterna.gui2.GridLayout;
-import com.googlecode.lanterna.gui2.Label;
-import com.googlecode.lanterna.gui2.Panel;
-import com.googlecode.lanterna.gui2.WindowBasedTextGUI;
-
-import xyz.thastertyn.Types.Choice;
-
-public class Sdeleni extends JecnaContent {
-	
-	private Panel sdeleniPanel = new Panel();
-	private Label borderLabel = new Label("Sdeleni R.");
-
-	private xyz.thastertyn.Scrape.Sdeleni sdeleni = new xyz.thastertyn.Scrape.Sdeleni();
-
-	private boolean hasStarted = false;
-
-	@Override
-	public void downloadDefault()
-	{
-		download(null);
-	}
-
-	@Override
-	protected void download(Choice choice)
-	{
-		try{
-			sdeleni.downloadSdeleni();
-
-			hasStarted = true;
-		}catch(UnknownHostException e)
-		{
-
-		}catch(IOException e)
-		{
-			
-		}
-	}
-
-	@Override
-	protected void setGUI()
-	{
-		sdeleniPanel.setLayoutManager(new GridLayout(1)
-			.setLeftMarginSize(1)
-			.setRightMarginSize(1));
-
-		ArrayList<String> sdeleniList = sdeleni.getSdeleni();
-
-		for(String s : sdeleniList)
-		{
-			sdeleniPanel.addComponent(new Label(s));
-		}
-	}
-
-	@Override
-	public Label getLabel() {
-		return borderLabel;
-	}
-
-	@Override
-	public Panel getPanel() {
-		return sdeleniPanel;
-	}
-
-	@Override
-	public boolean hasStarted() {
-		return hasStarted;
-	}
-
-	@Override
-	public void showOptions(WindowBasedTextGUI textGUI) {
-		// TODO Auto-generated method stub
-		throw new UnsupportedOperationException("Unimplemented method 'getOptions'");
-	}
-}

src/main/java/xyz/thastertyn/UserInterface/Content/Timetable.java

@@ -0,0 +1,58 @@
+package xyz.thastertyn.UserInterface.Content;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import com.googlecode.lanterna.gui2.Label;
+import com.googlecode.lanterna.gui2.Panel;
+import com.googlecode.lanterna.gui2.table.Table;
+
+import xyz.thastertyn.UserInterface.Listeners.UpdateListener;
+
+public class Timetable extends JecnaContent {
+
+	private xyz.thastertyn.Scrape.Timetable rozvrh = new xyz.thastertyn.Scrape.Timetable();
+
+	private String[] labels = {"Den", "7:30-8:15", "8:25-9:10", "9:20-10:05", "10:20-11:05", "11:15-12:00", "12:10-12:55", "13:05-13:50", "14:00-14:45", "14:55-15:40", "15:50-16:35"};
+	//private String[] labels = {"Den", "1.", "2.", "3.", "4.", "5.", "6.", "7.", "8.", "9.", "10."};
+
+	String[] daysLabels = {"PO", "UT", "ST", "CT", "PA"};
+	
+	Table<String> table;
+
+	public Timetable(UpdateListener listener)
+	{
+		super(listener);
+		this.mainPanel = new Panel();
+		this.borderLabel = new Label("Rozvrh");
+		super.scraper = this.rozvrh;
+	}
+
+	@Override
+	protected void setGUI()
+	{
+		mainPanel.removeAllComponents();
+		table = new Table<>(labels);
+		xyz.thastertyn.Types.Timetable timetable = rozvrh.getRozvrh();
+	
+		for(int day = 0; day < 5; day++)
+		{
+			List<String> currentRow = new ArrayList<>();
+
+			// Set the day (Po, Ut, St,...)
+			currentRow.add(daysLabels[day]);
+
+			// Add the classes
+			for(int hour = 0; hour < 10; hour++)
+			{
+				currentRow.add((timetable.get(day).get(hour).isBlank()) ?
+					" - " // Empty class, nothing taught at that moment
+					:
+					timetable.get(day).get(hour)); // Get class
+			}
+
+			table.getTableModel().addRow(currentRow);
+		}
+		mainPanel.addComponent(table);
+	}
+}

src/main/java/xyz/thastertyn/UserInterface/Content/Znamky.java

@@ -1,168 +0,0 @@
-package xyz.thastertyn.UserInterface.Content;
-
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.HashMap;
-
-import com.googlecode.lanterna.TextColor;
-import com.googlecode.lanterna.TextColor.ANSI;
-import com.googlecode.lanterna.graphics.SimpleTheme;
-import com.googlecode.lanterna.gui2.Direction;
-import com.googlecode.lanterna.gui2.GridLayout;
-import com.googlecode.lanterna.gui2.Label;
-import com.googlecode.lanterna.gui2.LayoutData;
-import com.googlecode.lanterna.gui2.LinearLayout;
-import com.googlecode.lanterna.gui2.Panel;
-import com.googlecode.lanterna.gui2.WindowBasedTextGUI;
-
-import xyz.thastertyn.Types.Choice;
-import xyz.thastertyn.Types.Predmet;
-import xyz.thastertyn.Types.Znamka;
-import xyz.thastertyn.UserInterface.Dialogs.OptionsDialog;
-
-public class Znamky extends JecnaContent {
-
-	private final TextColor.RGB VYBORNY = new TextColor.RGB(85,212,0);
-	private final TextColor.RGB CHVALITEBNY = new TextColor.RGB(196,224,80);
-	private final TextColor.RGB DOBRY = new TextColor.RGB(255,213,42);
-	private final TextColor.RGB DOSTATECNY = new TextColor.RGB(255,102,0);
-	private final TextColor.RGB NEDOSTATECNY = new TextColor.RGB(255,48,48);
-	private final TextColor.RGB NEHODNOCEN = new TextColor.RGB(0,0,0);
-
-	private final LayoutData ALIGN_LEFT = GridLayout.createLayoutData(
-		GridLayout.Alignment.BEGINNING,
-		GridLayout.Alignment.BEGINNING,
-		false,
-		false);
-
-	private final LayoutData ALIGN_RIGHT = GridLayout.createLayoutData(
-		GridLayout.Alignment.END,
-		GridLayout.Alignment.BEGINNING,
-		true,
-		false);
-	
-	private Panel mainPanel = new Panel()
-	.setLayoutManager(new GridLayout(3));
-
-	private Label borderLabel = new Label("Znamky");
-	private xyz.thastertyn.Scrape.Znamky znamky = new xyz.thastertyn.Scrape.Znamky();
-	
-	private boolean hasStarted = false;
-
-	@Override
-	public void downloadDefault()
-	{
-		download(null);
-	}
-
-	@Override
-	protected void download(Choice choice)
-	{
-		try{
-			if(choice != null)
-			{
-				znamky.downloadZnamky(choice);
-			}else{
-				znamky.downloadZnamky();
-			}
-			
-			setGUI();
-
-			hasStarted = true;
-		}catch(IOException e)
-		{
-			mainPanel.addComponent(new Label("An error has occured"));
-		}
-	}
-
-	@Override
-	protected void setGUI()
-	{
-		ArrayList<Predmet> predmety = znamky.getPredmety();
-			
-		HashMap<Integer, SimpleTheme> barvy = new HashMap<>();
-		barvy.put(1, new SimpleTheme(ANSI.BLACK, VYBORNY));
-		barvy.put(2, new SimpleTheme(ANSI.BLACK, CHVALITEBNY));
-		barvy.put(3, new SimpleTheme(ANSI.BLACK, DOBRY));
-		barvy.put(4, new SimpleTheme(ANSI.BLACK, DOSTATECNY));
-		barvy.put(5, new SimpleTheme(ANSI.BLACK, NEDOSTATECNY));
-		barvy.put(-1, new SimpleTheme(ANSI.WHITE, NEHODNOCEN));
-
-		// Sloupec pro jmena predmetu
-		Panel jmemaPredmetu = new Panel()
-		.setLayoutManager(new LinearLayout(Direction.VERTICAL))
-		.setLayoutData(ALIGN_LEFT)
-		.addTo(mainPanel);
-	
-		// Sloupec pro znamky z predmetu
-		Panel znamky = new Panel()
-		.setLayoutManager(new LinearLayout(Direction.VERTICAL))
-		.setLayoutData(ALIGN_LEFT)
-		.addTo(mainPanel);
-
-		// Sloupec pro vyslednou znamku
-		Panel vysledneZnamky = new Panel()
-		.setLayoutManager(new LinearLayout(Direction.VERTICAL))
-		.setLayoutData(ALIGN_RIGHT)
-		.addTo(mainPanel);
-
-		for(Predmet predmet : predmety)
-		{
-			Panel jednotliveZnamky = new Panel()
-			.setLayoutManager(new LinearLayout(Direction.HORIZONTAL))
-			.addTo(znamky);
-
-			if(predmet.getZnamky().isEmpty())
-			{
-				jednotliveZnamky.addComponent(new Label(""));
-			}
-
-			for(Znamka znamka : predmet.getZnamky())
-			{
-				Label znamkaLabel = new Label(znamka.getText());
-				znamkaLabel.setTheme(barvy.get(znamka.getZnamka()));
-				jednotliveZnamky.addComponent(znamkaLabel);
-			}
-			
-			double prumer = predmet.getPrumer();
-
-			Label vysl = new Label(String.format("%.2f", prumer));
-			
-			vysl.setTheme(barvy.get((int) Math.round(prumer)));
-			
-			jmemaPredmetu.addComponent(new Label(predmet.getJmenoPredmetu()));
-			vysledneZnamky.addComponent(vysl);
-		}
-	}
-
-
-	@Override
-	public Panel getPanel()
-	{
-		return mainPanel;
-	}
-
-	@Override
-	public boolean hasStarted()
-	{
-		return hasStarted;
-	}
-
-	@Override
-	public Label getLabel()
-	{
-		return borderLabel;
-	}
-
-	@Override
-	public void showOptions(WindowBasedTextGUI textGUI) {
-		OptionsDialog d = new OptionsDialog(znamky.getOptions().getValue0(), znamky.getOptions().getValue1());
-
-		Choice c = d.showDialog(textGUI);
-
-		if(c != null)
-		{
-			download(c);
-		}
-	}
-}

src/main/java/xyz/thastertyn/UserInterface/Dialogs/EscapeDialog.java

@@ -0,0 +1,80 @@
+package xyz.thastertyn.UserInterface.Dialogs;
+
+import java.util.Arrays;
+
+import com.googlecode.lanterna.gui2.Button;
+import com.googlecode.lanterna.gui2.Direction;
+import com.googlecode.lanterna.gui2.GridLayout;
+import com.googlecode.lanterna.gui2.LinearLayout;
+import com.googlecode.lanterna.gui2.Panel;
+import com.googlecode.lanterna.gui2.Window;
+import com.googlecode.lanterna.gui2.WindowBasedTextGUI;
+import com.googlecode.lanterna.gui2.dialogs.DialogWindow;
+
+import xyz.thastertyn.Login.LocalCredentials;
+import xyz.thastertyn.Login.LoginController;
+import xyz.thastertyn.UserInterface.Listeners.ContentResetListener;
+
+public class EscapeDialog extends DialogWindow {
+
+	private WindowBasedTextGUI textGUI;
+	private ContentResetListener resetListener;
+
+	public EscapeDialog(WindowBasedTextGUI textGUI, ContentResetListener resetListener)
+	{
+		super("Escape Menu");
+		this.textGUI = textGUI;
+		this.resetListener = resetListener;
+
+		Panel mainPanel = new Panel()
+			.setLayoutManager(new GridLayout(1)
+				.setLeftMarginSize(1)
+				.setRightMarginSize(1));
+
+		new Panel()
+			.setLayoutManager(
+				new LinearLayout(Direction.VERTICAL))
+			.addComponent(new Button("Return", this::onReturn))
+			.addComponent(new Button("Logout", this::onLogout))
+			.addComponent(new Button("Delete stored login", this::onDeleteLogin))
+			.addComponent(new Button("Exit", this::onExit))
+			.addTo(mainPanel);
+
+		setHints(Arrays.asList(Window.Hint.CENTERED));
+		setComponent(mainPanel);
+	}
+
+	public void onReturn()
+	{
+		close();
+	}
+
+	public void onDeleteLogin()
+	{
+		close();
+		LocalCredentials.getInstance().deleteCredentials();
+		LoginController controller = new LoginController(textGUI);
+		controller.loginUsingGui();
+		resetListener.reset();
+	}
+
+	public void onLogout()
+	{
+		close();
+		LoginController controller = new LoginController(textGUI);
+		controller.login(true);
+		resetListener.reset();
+	}
+
+	public void onExit()
+	{
+		close();
+		System.exit(0);
+	}
+
+	@Override
+	public Object showDialog(WindowBasedTextGUI textGUI) {
+		super.showDialog(textGUI);
+		return null;
+	}
+}

src/main/java/xyz/thastertyn/UserInterface/Dialogs/OptionsDialog.java

@@ -3,7 +3,7 @@ package xyz.thastertyn.UserInterface.Dialogs;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
-
+import java.util.stream.Collectors;
 
 import com.googlecode.lanterna.gui2.Button;
 import com.googlecode.lanterna.gui2.ComboBox;
@@ -25,7 +25,7 @@ public class OptionsDialog extends DialogWindow {
 
 	private boolean useData = false;
 	
-	public OptionsDialog(Options... options)
+	public OptionsDialog(Options[] options)
 	{
 		super("Choose from below");
 
@@ -36,6 +36,17 @@ public class OptionsDialog extends DialogWindow {
 			boxs.add(new ComboBox<Option>(o.getOptions()));
 		}
 
+		for(int i = 0; i < options.length; i++)
+		{
+			for(int j = 0; j < options[i].getOptions().size(); j++)
+			{
+				if(options[i].getOptions().get(j).isDefault())
+				{
+					boxs.get(i).setSelectedIndex(j);
+				}
+			}
+		}
+
 		Panel mainPanel = new Panel()
 			.setLayoutManager(new GridLayout(1)
 				.setLeftMarginSize(1)
@@ -91,11 +102,13 @@ public class OptionsDialog extends DialogWindow {
 		super.showDialog(textGUI);
 
 		return (useData) ?
-			new Choice( // User pressed ok
-				boxs.stream()
-				.map(b -> b.getSelectedItem().toString())
-				.toArray(String[]::new))
+			// User pressed Ok
+			new Choice(boxs.stream()
+				.map(box -> box.getSelectedItem().getValue())
+				.collect(Collectors.toList()))
+				// Why did .toList() stop working?
 			:
-			null; // User pressed Cancel
+			// User pressed Cancel
+			null;
 	}
 }

src/main/java/xyz/thastertyn/UserInterface/Listeners/ContentResetListener.java

@@ -0,0 +1,8 @@
+package xyz.thastertyn.UserInterface.Listeners;
+
+/**
+ * Interface for when accounts have been switched and a complete wipe of content is needed
+ */
+public interface ContentResetListener {
+	public void reset();
+}

src/main/java/xyz/thastertyn/UserInterface/Listeners/UpdateListener.java

@@ -0,0 +1,8 @@
+package xyz.thastertyn.UserInterface.Listeners;
+
+public interface UpdateListener {
+	/**
+	 * Redraw the screen when panel changes due to Choice being used
+	 */
+	public void updatePanel();
+}

src/main/java/xyz/thastertyn/UserInterface/Listeners/WindowSwitchListener.java

@@ -0,0 +1,236 @@
+package xyz.thastertyn.UserInterface.Listeners;
+
+import java.io.IOException;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+import com.googlecode.lanterna.TerminalPosition;
+import com.googlecode.lanterna.TerminalSize;
+import com.googlecode.lanterna.gui2.Borders;
+import com.googlecode.lanterna.gui2.Direction;
+import com.googlecode.lanterna.gui2.Label;
+import com.googlecode.lanterna.gui2.LinearLayout;
+import com.googlecode.lanterna.gui2.Panel;
+import com.googlecode.lanterna.gui2.Window;
+import com.googlecode.lanterna.gui2.WindowBasedTextGUI;
+import com.googlecode.lanterna.gui2.WindowListener;
+import com.googlecode.lanterna.gui2.dialogs.MessageDialog;
+import com.googlecode.lanterna.gui2.dialogs.MessageDialogButton;
+import com.googlecode.lanterna.input.KeyStroke;
+import com.googlecode.lanterna.input.KeyType;
+
+import xyz.thastertyn.UserInterface.Content.JecnaContent;
+import xyz.thastertyn.UserInterface.Content.AbsenceList;
+import xyz.thastertyn.UserInterface.Content.Timetable;
+import xyz.thastertyn.UserInterface.Content.Reports;
+import xyz.thastertyn.UserInterface.Content.Marks;
+import xyz.thastertyn.UserInterface.Dialogs.EscapeDialog;
+
+/**
+ * Holds all the content displayables and moves between them when needed on tab, or shift tab press
+ */
+// The biggest and greatest. 
+public class WindowSwitchListener implements WindowListener, UpdateListener, ContentResetListener {
+	private WindowBasedTextGUI textGUI;
+
+	private JecnaContent[] contents = {
+		new Timetable(this),
+		new Marks(this), // This being first doesn't resize properly for some reason
+		new Reports(this),
+		new AbsenceList(this)
+	};
+
+	private Label[] tabs = new Label[contents.length];
+
+	private Panel tabsPanel = new Panel()
+		.setLayoutManager(new LinearLayout(Direction.HORIZONTAL));
+	private Panel holderPanel = new Panel();
+
+	int current = contents.length - 1;
+
+	public WindowSwitchListener(Panel holder, WindowBasedTextGUI textGUI)
+	{
+		this.textGUI = textGUI;
+		holder.addComponent(tabsPanel);
+		holder.addComponent(holderPanel.withBorder(Borders.singleLine()));
+
+		for(int i = 0; i < contents.length; i++)
+		{
+			this.tabs[i] = contents[i].getLabel();
+			tabsPanel.addComponent(this.tabs[i]);
+		}
+
+		next();
+	}
+
+	private void next()
+	{
+		if(current + 1 == contents.length)
+		{
+			current = 0;
+		}else{
+			current++;
+		}
+		
+		loadPanel();
+	}
+
+	private void previous()
+	{
+		if(current - 1 == -1)
+		{
+			current = contents.length - 1;
+		}else{
+			current--;
+		}
+		loadPanel();
+	}
+
+	private void loadPanel()
+	{
+		checkIfDownloaded();
+
+		holderPanel.removeAllComponents();
+		tabsPanel.removeAllComponents();
+
+		setPanelPreferedSize();
+		updateLabels();
+	}
+
+	private void checkIfDownloaded()
+	{
+		if(!contents[current].hasStarted())
+		{
+			try{
+				contents[current].downloadDefault();
+			}catch(IOException e)
+			{
+				MessageDialog.showMessageDialog(textGUI, "Something failed", e.getMessage(), MessageDialogButton.OK);
+			}
+		}
+	}
+
+	/**
+	 * If a panel is smaller than the bar with labels, make it at least the bar size
+	 */
+	private void setPanelPreferedSize()
+	{
+		contents[current].getPanel().setSize(contents[current].getPanel().calculatePreferredSize()); // Fix for reports not being big enough
+
+		int labelTabColumnSize = tabsPanel
+			.getSize()
+			.getColumns();
+
+		int currentPanelColumnSize = contents[current]
+			.getPanel()
+			.getSize()
+			.getColumns();
+
+		if(currentPanelColumnSize < labelTabColumnSize)
+		{
+			int currentPanelRowSize = contents[current].getPanel().getPreferredSize().getRows();
+			holderPanel.addComponent(
+				contents[current]
+					.getPanel()
+					.setPreferredSize(new TerminalSize(
+										labelTabColumnSize,
+										currentPanelRowSize))); // Pretty janky, but basically just create a new TerminalSize with height the same and the width of label bar
+			return;
+		}
+
+		holderPanel.addComponent(contents[current].getPanel());
+	}
+
+	/**
+	 * Gets all labels again and properly sets their borders to single or double depending on {@link #current}
+	 */
+	private void updateLabels()
+	{
+		for(int i = 0; i < tabs.length; i++)
+		{
+			if(i == current)
+			{
+				tabsPanel.addComponent(tabs[i].withBorder(Borders.doubleLine()));
+			}else{
+				tabsPanel.addComponent(tabs[i].withBorder(Borders.singleLine()));
+			}
+		}
+	}
+
+	/**
+	 * Calls the {@link #current}'s showOptions with a textGui
+	 */
+	private void showOptions()
+	{
+		try{
+			contents[current].showOptions(textGUI);
+		}catch(IOException e)
+		{
+			MessageDialog.showMessageDialog(textGUI, "Something failed", "An error with connection has occured, either no connection at all, or connection timed out", MessageDialogButton.OK);
+		}
+	}
+
+	@Override
+	public void onInput(Window basePane, KeyStroke keyStroke, AtomicBoolean deliverEvent) {
+		KeyType type = keyStroke.getKeyType();
+
+		switch(type)
+		{
+			case Tab:
+				next();
+				break;
+			case ReverseTab: // Shift + Tab
+				previous();
+				break;
+			case Character:
+				if(keyStroke.getCharacter() == ' ')
+				{
+					showOptions();
+				}
+				break;
+			case Escape:
+				EscapeDialog dialog = new EscapeDialog(textGUI, this);
+				dialog.showDialog(textGUI);
+				break;
+			default:
+				break;
+		}
+	}
+
+	@Override
+	public void onUnhandledInput(Window basePane, KeyStroke keyStroke, AtomicBoolean hasBeenHandled) {
+		hasBeenHandled.set(true);
+	}
+
+	@Override
+	public void onResized(Window window, TerminalSize oldSize, TerminalSize newSize) {
+		window.invalidate();
+	}
+
+	@Override
+	public void onMoved(Window window, TerminalPosition oldPosition, TerminalPosition newPosition) {
+		window.invalidate();
+	}
+
+
+	@Override
+	public void updatePanel() {
+		holderPanel.removeAllComponents();
+		setPanelPreferedSize();
+		holderPanel.addComponent(contents[current].getPanel());
+	}
+
+	/**
+	 * On user change should wipe everything
+	 */
+	@Override
+	public void reset()
+	{
+		contents = new JecnaContent[] {
+			new Timetable(this),
+			new Marks(this),
+			new Reports(this),
+			new AbsenceList(this)
+		};
+		loadPanel();
+	}
+}

src/main/java/xyz/thastertyn/UserInterface/MainWindow.java

@@ -19,6 +19,7 @@ import com.googlecode.lanterna.terminal.DefaultTerminalFactory;
 import com.googlecode.lanterna.terminal.Terminal;
 
 import xyz.thastertyn.Login.LoginController;
+import xyz.thastertyn.UserInterface.Listeners.WindowSwitchListener;
 
 public class MainWindow {
 
@@ -27,7 +28,14 @@ public class MainWindow {
 	private Window window;
 	private MultiWindowTextGUI textGUI;
 
-	
+	/**
+	 * Create: 
+	 * <ul>
+	 * <li> All the main components like Terminal, and Screen </li>
+	 * <li> {@link LoginController} and try logging in using any of its methods </li>
+	 * <li> {@link WindowSwitchListener} for the purpose of switching between tabs using {@code Tab} and {@code ReverseTab} (Shift + Tab) </li>
+	 * </ul> 
+	 */
 	public void run()
 	{
 		try {
@@ -37,7 +45,7 @@ public class MainWindow {
 
 			screen = new TerminalScreen(terminal);
 			screen.startScreen();
-			
+
 			// Create window to hold the panel
 			window = new BasicWindow();
 			window.setHints(Arrays.asList(Window.Hint.CENTERED));
@@ -46,25 +54,25 @@ public class MainWindow {
 			textGUI = new MultiWindowTextGUI(screen, new DefaultWindowManager(), new EmptySpace(TextColor.ANSI.BLACK_BRIGHT));
 			//#endregion
 
-			// Create panel to hold components
+			// Create panel to hold all components
 			final Panel mainPanel = new Panel();
 			mainPanel.setLayoutManager(new LinearLayout(Direction.VERTICAL));
 			
 			window.setComponent(mainPanel);
 
-			String title = "Jecnak"; 
-			
+			// Create a secondary panel, as working with the mainPanel is quite buggy
 			Panel content = new Panel();
-			mainPanel.addComponent(content.withBorder(Borders.singleLine(title)));
+			mainPanel.addComponent(content.withBorder(Borders.singleLine("Jecnak")));
 
+			// Try logging in using any method
 			LoginController controller = new LoginController(textGUI);
-			controller.login();
+			controller.login(false);
 
-			window.addWindowListener(new WindowSwitchListener(content, title, textGUI));
+			// Create a WindowListener for tab and shift tab for moving between tabs
+			window.addWindowListener(new WindowSwitchListener(content, textGUI));
 
 			textGUI.addWindowAndWait(window);
 
-			
 		} catch (IOException e) {
 			e.printStackTrace();
 		}

src/main/java/xyz/thastertyn/UserInterface/WindowSwitchListener.java

@@ -1,144 +0,0 @@
-package xyz.thastertyn.UserInterface;
-
-import java.util.concurrent.atomic.AtomicBoolean;
-
-import com.googlecode.lanterna.TerminalPosition;
-import com.googlecode.lanterna.TerminalSize;
-import com.googlecode.lanterna.gui2.Borders;
-import com.googlecode.lanterna.gui2.Direction;
-import com.googlecode.lanterna.gui2.Label;
-import com.googlecode.lanterna.gui2.LinearLayout;
-import com.googlecode.lanterna.gui2.Panel;
-import com.googlecode.lanterna.gui2.Window;
-import com.googlecode.lanterna.gui2.WindowBasedTextGUI;
-import com.googlecode.lanterna.gui2.WindowListener;
-import com.googlecode.lanterna.gui2.dialogs.MessageDialog;
-import com.googlecode.lanterna.gui2.dialogs.MessageDialogButton;
-import com.googlecode.lanterna.input.KeyStroke;
-import com.googlecode.lanterna.input.KeyType;
-
-import xyz.thastertyn.UserInterface.Content.JecnaContent;
-import xyz.thastertyn.UserInterface.Content.OmluvnyList;
-import xyz.thastertyn.UserInterface.Content.Rozvrh;
-import xyz.thastertyn.UserInterface.Content.Sdeleni;
-import xyz.thastertyn.UserInterface.Content.Znamky;
-
-public class WindowSwitchListener implements WindowListener {
-
-	private WindowBasedTextGUI textGUI;
-
-	private JecnaContent[] contents = {
-		new Rozvrh(),
-		new Znamky(),
-		new Sdeleni(),
-		new OmluvnyList()
-	};
-
-	private Label[] tabs = new Label[contents.length];
-
-	private Panel tabsPanel = new Panel().setLayoutManager(new LinearLayout(Direction.HORIZONTAL));
-	private Panel holderPanel = new Panel();
-
-	private Panel errorPanel = new Panel().addComponent(new Label("Something went wrong"));
-
-	int current = contents.length - 1;
-
-	public WindowSwitchListener(Panel holder, String title, WindowBasedTextGUI textGUI)
-	{
-		this.textGUI = textGUI;
-		holder.addComponent(tabsPanel);
-		holder.addComponent(holderPanel.withBorder(Borders.singleLine()));
-		
-		for(int i = 0; i < contents.length; i++)
-		{
-			this.tabs[i] = contents[i].getLabel();
-			tabsPanel.addComponent(this.tabs[i]);
-		}
-
-		next();
-	}
-
-	private void next()
-	{
-		if(current + 1 == contents.length)
-		{
-			current = 0;
-		}else{
-			current++;
-		}
-
-		if(!contents[current].hasStarted())
-		{
-			contents[current].downloadDefault();
-		}
-
-		holderPanel.removeAllComponents();
-		tabsPanel.removeAllComponents();
-
-		if(contents[current].hasStarted())
-		{
-			int tabColumns = tabsPanel.getSize().getColumns();
-			
-			if(contents[current].getPanel().getSize().getColumns() < tabColumns)
-			{
-				holderPanel.addComponent(
-					contents[current].getPanel().setPreferredSize(new TerminalSize(tabColumns, 
-					contents[current].getPanel().getPreferredSize().getRows())));
-				
-			}else{
-				holderPanel.addComponent(contents[current].getPanel());
-			}
-		}else{
-			holderPanel.addComponent(errorPanel);
-		}
-
-		for(int i = 0; i < tabs.length; i++)
-		{
-			if(i == current)
-			{
-				tabsPanel.addComponent(tabs[i].withBorder(Borders.doubleLine()));
-			}else{
-				tabsPanel.addComponent(tabs[i].withBorder(Borders.singleLine()));
-			}
-		}
-	}
-	
-	@Override
-	public void onInput(Window basePane, KeyStroke keyStroke, AtomicBoolean deliverEvent) {
-		KeyType type = keyStroke.getKeyType();
-
-		switch(type)
-		{
-			case Tab:
-				next();
-				break;
-			case Character:
-				if(keyStroke.getCharacter() == ' ')
-				{
-					contents[current].showOptions(textGUI);
-				}
-				break;
-			case Escape:
-				MessageDialog.showMessageDialog(textGUI, "Options", "Loging out and some other stuff soon", MessageDialogButton.OK);
-				break;
-			default:
-				break;
-		}
-	}
-
-	@Override
-	public void onUnhandledInput(Window basePane, KeyStroke keyStroke, AtomicBoolean hasBeenHandled) {
-		// TODO Auto-generated method stub
-	}
-
-	@Override
-	public void onResized(Window window, TerminalSize oldSize, TerminalSize newSize) {
-		window.invalidate();
-	}
-
-	@Override
-	public void onMoved(Window window, TerminalPosition oldPosition, TerminalPosition newPosition) {
-		// TODO Auto-generated method stub
-	}
-	
-}

src/test/java/xyz/thastertyn/AppTest.java

@@ -1,39 +1,73 @@
 package xyz.thastertyn;
 
+import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
 
 import org.junit.Test;
 
+import xyz.thastertyn.Types.FinalMark;
+import xyz.thastertyn.Types.Mark;
+import xyz.thastertyn.Types.Subject;
+
 /**
  * Unit test for simple App.
  */
 public class AppTest 
 {
-    /**
-     * Rigorous Test :-)
-     */
-    @Test
-    public void shouldAnswerWithTrue()
-    {
-        assertTrue( true );
-    }
+	/**
+	 * Rigorous Test :-)
+	 */
+	@Test
+	public void shouldAnswerWithTrue()
+	{
+		assertTrue( true );
+	}
 
-    @Test
-    public void hasJavaAbove11()
-    {
-        // https://stackoverflow.com/questions/2591083/getting-java-version-at-runtime#2591122
-        String version = System.getProperty("java.version");
-        int v;
+	@Test
+	public void noMarksPresentTest()
+	{
+		// No marks are present on start
+		Subject subject = new Subject("Test Subject");
 
-        if(version.startsWith("1."))
-        {
-            version = version.substring(2, 3);
-        }else {
-            int dot = version.indexOf(".");
-            if(dot != -1) { version = version.substring(0, dot); }
-        } 
-        v = Integer.parseInt(version);
+		assertTrue(subject.getMarks().isEmpty());
+	}
 
-        assertTrue("Java >= 11 is required", (v >= 11));
-    }
+	@Test
+	public void correctAverage()
+	{
+		Subject subject = new Subject("Test");
+
+		// Average is calculated properly
+		subject.addMark(new Mark(1, false, "1"));
+		subject.addMark(new Mark(3, false, "3"));
+
+		assertTrue(subject.getFinalMark().getValue() == 2.0);
+	}
+
+	@Test
+	public void correctSmallMarkAverage()
+	{
+		// Small marks are calculated properly
+		Subject subject = new Subject("Test");
+
+		subject.addMark(new Mark(1, false, "1"));
+		subject.addMark(new Mark(3, false, "3"));
+		subject.addMark(new Mark(5, true, "5"));
+		subject.addMark(new Mark(5, true, "5"));
+
+		assertTrue(subject.getFinalMark().getValue() == 3.0);
+	}
+
+	@Test
+	public void marksDontChangeFinalMark()
+	{
+		// Once a final mark is given, no additional marks should change it
+		Subject subject = new Subject("Test", FinalMark.NEDOSTATECNY);
+		subject.addMark(new Mark(1, false, "a"));
+		subject.addMark(new Mark(1, false, "a"));
+		subject.addMark(new Mark(1, false, "a"));
+		subject.addMark(new Mark(1, false, "a"));
+
+		assertEquals(FinalMark.NEDOSTATECNY, subject.getFinalMark());
+	}
 }