Start implementing flashcard functionality

Author: wendelinwemhoener

src/main/java/seedu/duke/Duke.java

@@ -1,21 +1,34 @@
 package seedu.duke;
 
+import seedu.duke.flashcard.Flashcard;
+import seedu.duke.flashcard.FlashcardCommandParser;
+import seedu.duke.flashcard.FlashcardComponent;
+import seedu.duke.flashcard.FlashcardList;
+
+import java.util.ArrayList;
 import java.util.Scanner;
 
 public class Duke {
-    /**
-     * Main entry-point for the java.duke.Duke application.
-     */
+    public Duke() {}
+
     public static void main(String[] args) {
-        String logo = " ____        _        \n"
-                + "|  _ \\ _   _| | _____ \n"
-                + "| | | | | | | |/ / _ \\\n"
-                + "| |_| | |_| |   <  __/\n"
-                + "|____/ \\__,_|_|\\_\\___|\n";
-        System.out.println("Hello from\n" + logo);
-        System.out.println("What is your name?");
-
-        Scanner in = new Scanner(System.in);
-        System.out.println("Hello " + in.nextLine());
+        new Duke().run();
+    }
+
+    private void run() {
+        FlashcardComponent fc = new FlashcardComponent(new ArrayList<Flashcard>());
+
+        Scanner scanner = new Scanner(System.in);
+        String input;
+        boolean shouldTerminate = false;
+
+        while (!shouldTerminate) {
+            input = scanner.nextLine();
+
+            if (fc.isResponsible(input)) {
+                fc.processInput(input);
+            }
+        }
+
     }
 }

src/main/java/seedu/duke/flashcard/Flashcard.java

@@ -0,0 +1,32 @@
+package seedu.duke.flashcard;
+
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.Arrays;
+
+public class Flashcard {
+    private String frontText;
+    private String backText;
+    private ArrayList<String> tags;
+    private ArrayList<FlashcardReview> reviews;
+    private LocalDateTime nextReviewOn;
+
+    public Flashcard(String frontText, String backText) {
+        this.frontText = frontText;
+        this.backText = backText;
+
+        tags = new ArrayList<>();
+        reviews = new ArrayList<>();
+
+        nextReviewOn = null;
+    }
+
+    public String toString() {
+        return "-".repeat(80) + System.lineSeparator()
+                + "front text: " + frontText + System.lineSeparator()
+                + "back text: " + backText + System.lineSeparator()
+                + "tags: " + tags.toString() + System.lineSeparator()
+                + "next review due on: " + nextReviewOn + System.lineSeparator()
+                + "-".repeat(80);
+    }
+}

src/main/java/seedu/duke/flashcard/FlashcardCommandParser.java

@@ -0,0 +1,18 @@
+package seedu.duke.flashcard;
+
+import seedu.duke.flashcard.command.CreateFlashcardCommand;
+import seedu.duke.flashcard.command.FlashcardCommand;
+import seedu.duke.flashcard.command.ListFlashcardsCommand;
+import seedu.duke.flashcard.command.UnknownCommand;
+
+public class FlashcardCommandParser {
+    public FlashcardCommand parseInput(String input) {
+        if (input.startsWith("create flashcard")) {
+            return new CreateFlashcardCommand();
+        } else if (input.startsWith("list flashcards")) {
+            return new ListFlashcardsCommand();
+        }
+
+        return new UnknownCommand();
+    }
+}

src/main/java/seedu/duke/flashcard/FlashcardComponent.java

@@ -0,0 +1,33 @@
+package seedu.duke.flashcard;
+
+import seedu.duke.flashcard.command.FlashcardCommand;
+import seedu.duke.flashcard.command.UnknownCommand;
+
+import java.util.ArrayList;
+
+public class FlashcardComponent {
+    private FlashcardCommandParser parser;
+    private FlashcardList flashcardList;
+    private FlashcardUi ui;
+
+    public FlashcardComponent(ArrayList<Flashcard> flashcards) {
+        parser = new FlashcardCommandParser();
+        flashcardList = new FlashcardList(flashcards);
+        ui = new FlashcardUi(flashcardList);
+    }
+
+    public boolean isResponsible(String input) {
+        FlashcardCommand command = parser.parseInput(input);
+
+        if (command instanceof UnknownCommand) {
+            return false;
+        } else {
+            return true;
+        }
+    }
+
+    public void processInput(String input) {
+        FlashcardCommand command = parser.parseInput(input);
+        ui.executeCommand(command);
+    }
+}

src/main/java/seedu/duke/flashcard/FlashcardDifficulty.java

@@ -0,0 +1,8 @@
+package seedu.duke.flashcard;
+
+public enum FlashcardDifficulty {
+    EASY,
+    GOOD,
+    HARD,
+    AGAIN
+}

src/main/java/seedu/duke/flashcard/FlashcardList.java

@@ -0,0 +1,19 @@
+package seedu.duke.flashcard;
+
+import java.util.ArrayList;
+
+public class FlashcardList {
+    private ArrayList<Flashcard> flashcards;
+
+    public FlashcardList(ArrayList<Flashcard> flashcards) {
+        this.flashcards = flashcards;
+    }
+
+    public ArrayList<Flashcard> getFlashcards() {
+        return flashcards;
+    }
+
+    public void add(Flashcard flashcard) {
+        flashcards.add(flashcard);
+    }
+}

src/main/java/seedu/duke/flashcard/FlashcardReview.java

@@ -0,0 +1,13 @@
+package seedu.duke.flashcard;
+
+import java.time.LocalDateTime;
+
+public class FlashcardReview {
+    private LocalDateTime reviewDate;
+    private FlashcardDifficulty reviewDifficulty;
+
+    public FlashcardReview(LocalDateTime reviewDate, FlashcardDifficulty reviewDifficulty) {
+        this.reviewDate = reviewDate;
+        this.reviewDifficulty = reviewDifficulty;
+    }
+}

src/main/java/seedu/duke/flashcard/FlashcardUi.java

@@ -0,0 +1,42 @@
+package seedu.duke.flashcard;
+
+import seedu.duke.flashcard.command.CreateFlashcardCommand;
+import seedu.duke.flashcard.command.FlashcardCommand;
+import seedu.duke.flashcard.command.ListFlashcardsCommand;
+
+import java.util.Scanner;
+
+public class FlashcardUi {
+    private Scanner scanner;
+    private FlashcardList flashcardList;
+
+    public FlashcardUi(FlashcardList flashcardList) {
+        scanner = new Scanner(System.in);
+        this.flashcardList = flashcardList;
+    }
+
+    public void executeCommand(FlashcardCommand command) {
+        if (command instanceof CreateFlashcardCommand) {
+            executeCreateFlashcardCommand();
+        } else if (command instanceof ListFlashcardsCommand) {
+            listFlashcards();
+        }
+    }
+
+    private void executeCreateFlashcardCommand() {
+        System.out.print("Enter the front page text: ");
+        String frontPageText = scanner.nextLine();
+        System.out.print("Enter the back page text: ");
+        String backPageText = scanner.nextLine();
+
+        Flashcard flashcard = new Flashcard(frontPageText, backPageText);
+
+        flashcardList.add(flashcard);
+    }
+
+    public void listFlashcards() {
+        for (Flashcard flashcard : flashcardList.getFlashcards()) {
+            System.out.println(flashcard);
+        }
+    }
+}

src/main/java/seedu/duke/flashcard/command/CreateFlashcardCommand.java

@@ -0,0 +1,4 @@
+package seedu.duke.flashcard.command;
+
+public class CreateFlashcardCommand extends FlashcardCommand {
+}

src/main/java/seedu/duke/flashcard/command/FlashcardCommand.java

@@ -0,0 +1,4 @@
+package seedu.duke.flashcard.command;
+
+public class FlashcardCommand {
+}