diff --git a/.github/workflows/gradle.yml b/.github/workflows/gradle.yml
new file mode 100644
index 0000000000..81e70d052b
--- /dev/null
+++ b/.github/workflows/gradle.yml
@@ -0,0 +1,35 @@
+name: Java CI
+
+on: [push, pull_request]
+
+jobs:
+ build:
+ strategy:
+ matrix:
+ platform: [ubuntu-latest, macos-latest, windows-latest]
+ runs-on: ${{ matrix.platform }}
+
+ steps:
+ - name: Set up repository
+ uses: actions/checkout@master
+
+ - name: Set up repository
+ uses: actions/checkout@master
+ with:
+ ref: master
+
+ - name: Merge to master
+ run: git checkout --progress --force ${{ github.sha }}
+
+ - name: Validate Gradle Wrapper
+ uses: gradle/wrapper-validation-action@v1
+
+ - name: Setup JDK 11
+ uses: actions/setup-java@v1
+ with:
+ java-version: '11'
+ java-package: jdk+fx
+
+ - name: Build and check with Gradle
+ run: ./gradlew check
+
diff --git a/.gitignore b/.gitignore
index 2873e189e1..b8e62d3ba1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,3 +15,4 @@ bin/
/text-ui-test/ACTUAL.TXT
text-ui-test/EXPECTED-UNIX.TXT
+/data
diff --git a/build.gradle b/build.gradle
new file mode 100644
index 0000000000..8f003c7b91
--- /dev/null
+++ b/build.gradle
@@ -0,0 +1,65 @@
+plugins {
+ id 'java'
+ id 'application'
+ id 'com.github.johnrengelman.shadow' version '7.1.2'
+ id 'checkstyle'
+ id 'org.openjfx.javafxplugin' version '0.0.13'
+}
+
+repositories {
+ mavenCentral()
+}
+
+dependencies {
+ testImplementation group: 'org.junit.jupiter', name: 'junit-jupiter-api', version: '5.10.0'
+ testRuntimeOnly group: 'org.junit.jupiter', name: 'junit-jupiter-engine', version: '5.10.0'
+
+ // @@author lordidiot-reused
+ // Taken from https://github.com/nus-cs2103-AY2324S1/forum/issues/173
+ def platforms = ["win", "linux", "mac"]
+ def javafxDependency = ["javafx-graphics", "javafx-controls", "javafx-fxml"]
+
+ for (plt in platforms) {
+ for (dep in javafxDependency) {
+ runtimeOnly "org.openjfx:$dep:$javafx.version:$plt"
+ }
+ }
+ // @@author
+}
+
+test {
+ useJUnitPlatform()
+
+ testLogging {
+ events "passed", "skipped", "failed"
+
+ showExceptions true
+ exceptionFormat "full"
+ showCauses true
+ showStackTraces true
+ showStandardStreams = false
+ }
+}
+
+application {
+ mainClass.set("duke.Launcher")
+}
+
+shadowJar {
+ archiveBaseName = "duke"
+ archiveClassifier = null
+ dependsOn("distZip", "distTar")
+}
+
+run {
+ standardInput = System.in
+}
+
+checkstyle {
+ toolVersion = '10.2'
+}
+
+javafx {
+ version = "17.0.7"
+ modules = [ 'javafx.base', 'javafx.controls', 'javafx.fxml', 'javafx.graphics' ]
+}
diff --git a/config/checkstyle/checkstyle.xml b/config/checkstyle/checkstyle.xml
new file mode 100644
index 0000000000..eb761a9b9a
--- /dev/null
+++ b/config/checkstyle/checkstyle.xml
@@ -0,0 +1,434 @@
+
+
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diff --git a/config/checkstyle/suppressions.xml b/config/checkstyle/suppressions.xml
new file mode 100644
index 0000000000..39efb6e4ac
--- /dev/null
+++ b/config/checkstyle/suppressions.xml
@@ -0,0 +1,10 @@
+
+
+
+
+
+
+
+
diff --git a/docs/README.md b/docs/README.md
index 8077118ebe..9dbb54568f 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -1,29 +1,175 @@
-# User Guide
+# Pong User Guide
+
+
## Features
-### Feature-ABC
+### List tasks (`list`)
+
+Lists all tasks.
+
+### Add todo (`todo`)
+
+Adds todo task.
+
+### Add deadline (`deadline`)
+
+Adds deadline task.
+
+### Add event (`event`)
+
+Adds event task.
+
+### Mark task (`mark`)
+
+Marks task as done.
+
+### Unmark task (`unmark`)
-Description of the feature.
+Marks task as **not** done.
-### Feature-XYZ
+### Delete task (`delete`)
-Description of the feature.
+Deletes task.
+
+### Exit application (`bye`)
+
+Exits Duke chatbot.
## Usage
-### `Keyword` - Describe action
+### `list` - Lists tasks
+
+Lists all tasks.
-Describe the action and its outcome.
+Format:
+
+`list`
Example of usage:
-`keyword (optional arguments)`
+`list`
+
+Expected outcome:
+
+Notice that pong will output all tasks, their types and whether they are marked as done.
+
+```
+ 1. [T][X] Prepare breakfast
+ 2. [D][ ] CS2103T tP UG (by: 2023-09-20 23:59)
+ 3. [D][ ] SEP Application (by: 2023-09-24 23:59)
+```
+
+### `todo` - Add todo
+
+Add todo task.
+
+Format:
+
+`todo `
+
+Example of usage:
+
+`todo Prepare breakfast`
Expected outcome:
-Description of the outcome.
+```
+[Added] [T][ ] Prepare breakfast
+```
+
+### `deadline` - Add deadline
+
+Add deadline task.
+
+Format:
+
+`deadline /by ` (date in `yyyy/MM/dd [HHmm]`)
+
+Example of usage:
+
+`deadline CS2103T tP UG /by 2023/09/20 2359`
+
+Expected outcome:
```
-expected output
+[Added] [D][ ] CS2103T Lecture (by: 2023-09-20 23:59)
```
+
+### `event` - Add event
+
+Add event task.
+
+Format:
+
+`event /from /to ` (dates in `yyyy/MM/dd [HHmm]`)
+
+Example of usage:
+
+`event CS2103T Lecture /from 2023/09/22 1600 /to 2023/09/22 1800`
+
+Expected outcome:
+
+```
+[Added] [E][ ] CS2103T Lecture (from: 2023-09-22 16:00, to: 2023-09-22 18:00)
+```
+
+### `mark` - Mark task
+
+Marks task as done.
+
+Format:
+
+`mark `
+
+Example of usage:
+
+`mark 1`
+
+Expected outcome:
+
+```
+I've marked this task done.
+ [T][X] Prepare breakfast
+```
+
+### `unmark` - Unmark task
+
+Marks task as **not** done.
+
+Format:
+
+`unmark `
+
+Example of usage:
+
+`unmark 1`
+
+Expected outcome:
+
+```
+I've marked this task not done.
+ [T][ ] Prepare breakfast
+```
+
+### `delete` - Deletes task
+
+Deletes task.
+
+Format:
+
+`delete `
+
+Example of usage:
+
+`delete 1`
+
+Expected outcome:
+
+```
+[Deleted] [T][ ] Prepare breakfast
+```
+
+## Acknowledgements
+
+- Used some gradle fixes from [@woojiahao](https://github.com/woojiahao) written [here](https://github.com/nus-cs2103-AY2324S1/forum/issues/173)
diff --git a/docs/Ui.png b/docs/Ui.png
new file mode 100644
index 0000000000..47d72d98d8
Binary files /dev/null and b/docs/Ui.png differ
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000000..033e24c4cd
Binary files /dev/null and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000000..66c01cfeba
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6.2-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
new file mode 100755
index 0000000000..fcb6fca147
--- /dev/null
+++ b/gradlew
@@ -0,0 +1,248 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+# Gradle start up script for POSIX generated by Gradle.
+#
+# Important for running:
+#
+# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+# noncompliant, but you have some other compliant shell such as ksh or
+# bash, then to run this script, type that shell name before the whole
+# command line, like:
+#
+# ksh Gradle
+#
+# Busybox and similar reduced shells will NOT work, because this script
+# requires all of these POSIX shell features:
+# * functions;
+# * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+# «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+# * compound commands having a testable exit status, especially «case»;
+# * various built-in commands including «command», «set», and «ulimit».
+#
+# Important for patching:
+#
+# (2) This script targets any POSIX shell, so it avoids extensions provided
+# by Bash, Ksh, etc; in particular arrays are avoided.
+#
+# The "traditional" practice of packing multiple parameters into a
+# space-separated string is a well documented source of bugs and security
+# problems, so this is (mostly) avoided, by progressively accumulating
+# options in "$@", and eventually passing that to Java.
+#
+# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+# see the in-line comments for details.
+#
+# There are tweaks for specific operating systems such as AIX, CygWin,
+# Darwin, MinGW, and NonStop.
+#
+# (3) This script is generated from the Groovy template
+# https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+# within the Gradle project.
+#
+# You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+ APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path
+ [ -h "$app_path" ]
+do
+ ls=$( ls -ld "$app_path" )
+ link=${ls#*' -> '}
+ case $link in #(
+ /*) app_path=$link ;; #(
+ *) app_path=$APP_HOME$link ;;
+ esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+ echo "$*"
+} >&2
+
+die () {
+ echo
+ echo "$*"
+ echo
+ exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in #(
+ CYGWIN* ) cygwin=true ;; #(
+ Darwin* ) darwin=true ;; #(
+ MSYS* | MINGW* ) msys=true ;; #(
+ NONSTOP* ) nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+ if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+ # IBM's JDK on AIX uses strange locations for the executables
+ JAVACMD=$JAVA_HOME/jre/sh/java
+ else
+ JAVACMD=$JAVA_HOME/bin/java
+ fi
+ if [ ! -x "$JAVACMD" ] ; then
+ die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+ fi
+else
+ JAVACMD=java
+ if ! command -v java >/dev/null 2>&1
+ then
+ die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+ fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+ case $MAX_FD in #(
+ max*)
+ # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+ # shellcheck disable=SC3045
+ MAX_FD=$( ulimit -H -n ) ||
+ warn "Could not query maximum file descriptor limit"
+ esac
+ case $MAX_FD in #(
+ '' | soft) :;; #(
+ *)
+ # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+ # shellcheck disable=SC3045
+ ulimit -n "$MAX_FD" ||
+ warn "Could not set maximum file descriptor limit to $MAX_FD"
+ esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+# * args from the command line
+# * the main class name
+# * -classpath
+# * -D...appname settings
+# * --module-path (only if needed)
+# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+ APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+ CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+ JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+ # Now convert the arguments - kludge to limit ourselves to /bin/sh
+ for arg do
+ if
+ case $arg in #(
+ -*) false ;; # don't mess with options #(
+ /?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath
+ [ -e "$t" ] ;; #(
+ *) false ;;
+ esac
+ then
+ arg=$( cygpath --path --ignore --mixed "$arg" )
+ fi
+ # Roll the args list around exactly as many times as the number of
+ # args, so each arg winds up back in the position where it started, but
+ # possibly modified.
+ #
+ # NB: a `for` loop captures its iteration list before it begins, so
+ # changing the positional parameters here affects neither the number of
+ # iterations, nor the values presented in `arg`.
+ shift # remove old arg
+ set -- "$@" "$arg" # push replacement arg
+ done
+fi
+
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command;
+# * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+# shell script including quotes and variable substitutions, so put them in
+# double quotes to make sure that they get re-expanded; and
+# * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+ "-Dorg.gradle.appname=$APP_BASE_NAME" \
+ -classpath "$CLASSPATH" \
+ org.gradle.wrapper.GradleWrapperMain \
+ "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+ die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+# readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+# set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+ printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+ xargs -n1 |
+ sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+ tr '\n' ' '
+ )" '"$@"'
+
+exec "$JAVACMD" "$@"
diff --git a/gradlew.bat b/gradlew.bat
new file mode 100644
index 0000000000..6689b85bee
--- /dev/null
+++ b/gradlew.bat
@@ -0,0 +1,92 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/src/main/java/Duke.java b/src/main/java/Duke.java
deleted file mode 100644
index 5d313334cc..0000000000
--- a/src/main/java/Duke.java
+++ /dev/null
@@ -1,10 +0,0 @@
-public class Duke {
- public static void main(String[] args) {
- String logo = " ____ _ \n"
- + "| _ \\ _ _| | _____ \n"
- + "| | | | | | | |/ / _ \\\n"
- + "| |_| | |_| | < __/\n"
- + "|____/ \\__,_|_|\\_\\___|\n";
- System.out.println("Hello from\n" + logo);
- }
-}
diff --git a/src/main/java/duke/DialogBox.java b/src/main/java/duke/DialogBox.java
new file mode 100644
index 0000000000..1286339296
--- /dev/null
+++ b/src/main/java/duke/DialogBox.java
@@ -0,0 +1,61 @@
+package duke;
+
+import java.io.IOException;
+import java.util.Collections;
+
+import javafx.collections.FXCollections;
+import javafx.collections.ObservableList;
+import javafx.fxml.FXML;
+import javafx.fxml.FXMLLoader;
+import javafx.geometry.Pos;
+import javafx.scene.Node;
+import javafx.scene.control.Label;
+import javafx.scene.image.Image;
+import javafx.scene.image.ImageView;
+import javafx.scene.layout.HBox;
+
+/**
+ * An example of a custom control using FXML.
+ * This control represents a dialog box consisting of an ImageView to represent the speaker's face and a label
+ * containing text from the speaker.
+ */
+public class DialogBox extends HBox {
+ @FXML
+ private Label dialog;
+ @FXML
+ private ImageView displayPicture;
+
+ private DialogBox(String text, Image img) {
+ try {
+ FXMLLoader fxmlLoader = new FXMLLoader(MainWindow.class.getResource("/view/DialogBox.fxml"));
+ fxmlLoader.setController(this);
+ fxmlLoader.setRoot(this);
+ fxmlLoader.load();
+ } catch (IOException e) {
+ e.printStackTrace();
+ }
+
+ dialog.setText(text);
+ displayPicture.setImage(img);
+ }
+
+ /**
+ * Flips the dialog box such that the ImageView is on the left and text on the right.
+ */
+ private void flip() {
+ ObservableList tmp = FXCollections.observableArrayList(this.getChildren());
+ Collections.reverse(tmp);
+ getChildren().setAll(tmp);
+ setAlignment(Pos.TOP_LEFT);
+ }
+
+ public static DialogBox getUserDialog(String text, Image img) {
+ return new DialogBox(text, img);
+ }
+
+ public static DialogBox getDukeDialog(String text, Image img) {
+ var db = new DialogBox(text, img);
+ db.flip();
+ return db;
+ }
+}
diff --git a/src/main/java/duke/Duke.java b/src/main/java/duke/Duke.java
new file mode 100644
index 0000000000..18136dd03c
--- /dev/null
+++ b/src/main/java/duke/Duke.java
@@ -0,0 +1,162 @@
+package duke;
+
+import java.time.LocalDateTime;
+import java.util.List;
+
+import duke.task.Deadline;
+import duke.task.Event;
+import duke.task.Task;
+import duke.task.TaskList;
+import duke.task.TaskStorage;
+import duke.task.Todo;
+import duke.ui.Parser;
+import duke.ui.Ui;
+
+/**
+ * Duke class handles main logic for the chatbot.
+ */
+public class Duke {
+ private final TaskList taskList;
+ private final Ui ui;
+
+ /**
+ * Initialise Duke chatbot instance.
+ * @param ui Ui type that Duke will use.
+ * @throws DukeException
+ */
+ public Duke(Ui ui) throws DukeException {
+ this.taskList = new TaskList(new TaskStorage());
+ this.ui = ui;
+ }
+
+ /**
+ * Passes input to duke to handle.
+ * @param input String input to handle.
+ * @return isRunning boolean to decide if Duke should continue.
+ * @throws DukeException If error encountered while handling input.
+ */
+ public boolean handleInput(String input) throws DukeException {
+ Parser parser = Parser.from(input);
+ assert parser != null : "The variable 'parser' is null";
+
+ switch (parser.getCommand()) {
+ case "bye":
+ return false;
+ case "list":
+ listCommand();
+ break;
+ case "mark":
+ markCommand(parser);
+ break;
+ case "unmark":
+ unmarkCommand(parser);
+ break;
+ case "delete":
+ deleteCommand(parser);
+ break;
+ case "todo":
+ todoCommand(parser);
+ break;
+ case "deadline":
+ deadlineCommand(parser);
+ break;
+ case "event":
+ eventCommand(parser);
+ break;
+ case "find":
+ findCommand(parser);
+ break;
+ default:
+ invalidCommand(parser);
+ break;
+ }
+
+ return true;
+ }
+
+ private void listCommand() {
+ ui.listTasks(taskList.getTasks());
+ }
+
+ private void markCommand(Parser parser) throws DukeException {
+ Task task = taskList.markTask(parser.getArgAsInt());
+ ui.markTask(task);
+ }
+
+ private void unmarkCommand(Parser parser) throws DukeException {
+ Task task = taskList.unmarkTask(parser.getArgAsInt());
+ ui.unmarkTask(task);
+ }
+
+ private void deleteCommand(Parser parser) throws DukeException {
+ Task task = taskList.deleteTask(parser.getArgAsInt());
+ ui.deleteTask(task);
+ }
+
+ private void todoCommand(Parser parser) throws DukeException {
+ String todoName = parser.getArg();
+ if (todoName == null || todoName.equals("")) {
+ throw new DukeException("duke.Todo name cannot be empty");
+ }
+ Task task = new Todo(todoName);
+ taskList.addTask(task);
+ ui.addTask(task);
+ }
+
+ private void deadlineCommand(Parser parser) throws DukeException {
+ String deadlineName = parser.getArg();
+ if (deadlineName == null || deadlineName.equals("")) {
+ throw new DukeException("duke.Deadline name cannot be empty");
+ }
+
+ LocalDateTime deadline;
+ deadline = parser.getOptArgAsDateTime("by");
+
+ if (deadline == null) {
+ throw new DukeException("Use /by to specify deadline date (yyyy/MM/dd [HHmm])");
+ }
+
+ Task task = new Deadline(deadlineName, deadline);
+ taskList.addTask(task);
+ ui.addTask(task);
+ }
+
+ private void eventCommand(Parser parser) throws DukeException {
+ String eventName = parser.getArg();
+ if (eventName == null || eventName.equals("")) {
+ throw new DukeException("duke.Deadline name cannot be empty");
+ }
+
+ LocalDateTime from;
+ LocalDateTime to;
+ from = parser.getOptArgAsDateTime("from");
+ to = parser.getOptArgAsDateTime("to");
+
+ if (from == null || to == null) {
+ throw new DukeException("Use /from and /to to specify event duration (yyyy/MM/dd [HHmm])");
+ }
+
+ Task task = new Event(eventName, from, to);
+ taskList.addTask(task);
+ ui.addTask(task);
+ }
+
+ private void findCommand(Parser parser) {
+ String search = parser.getArg();
+ List tasks = taskList.findTasks(search);
+ ui.listTasks(tasks);
+ }
+
+ private void invalidCommand(Parser parser) {
+ ui.invalidCommand(parser.getCommand());
+ }
+
+
+ /**
+ * Gracefully handle exception thrown by Duke.
+ * @param e Exception thrown by Duke.
+ */
+ public void handleException(DukeException e) {
+ this.ui.printException(e);
+ }
+}
diff --git a/src/main/java/duke/DukeException.java b/src/main/java/duke/DukeException.java
new file mode 100644
index 0000000000..d9d8c7f458
--- /dev/null
+++ b/src/main/java/duke/DukeException.java
@@ -0,0 +1,15 @@
+package duke;
+
+/**
+ * DukeException encapsulates custom exceptions thrown
+ * by the Duke project.
+ */
+public class DukeException extends Exception {
+ /**
+ * Constructor for DukeException.
+ * @param errorMessage Custom error message.
+ */
+ public DukeException(String errorMessage) {
+ super(errorMessage);
+ }
+}
diff --git a/src/main/java/duke/Launcher.java b/src/main/java/duke/Launcher.java
new file mode 100644
index 0000000000..35c362cffb
--- /dev/null
+++ b/src/main/java/duke/Launcher.java
@@ -0,0 +1,16 @@
+package duke;
+
+import javafx.application.Application;
+
+/**
+ * Launcher class to launch GUI main.
+ */
+public class Launcher {
+ /**
+ * Entrypoint for Duke GUI application.
+ * @param args Command-line arguments (unused).
+ */
+ public static void main(String[] args) {
+ Application.launch(Main.class, args);
+ }
+}
diff --git a/src/main/java/duke/Main.java b/src/main/java/duke/Main.java
new file mode 100644
index 0000000000..9d7d407dfc
--- /dev/null
+++ b/src/main/java/duke/Main.java
@@ -0,0 +1,44 @@
+package duke;
+
+import java.io.IOException;
+
+import duke.ui.TextUi;
+import javafx.application.Application;
+import javafx.fxml.FXMLLoader;
+import javafx.scene.Scene;
+import javafx.scene.layout.AnchorPane;
+import javafx.stage.Stage;
+
+/**
+ * A GUI for Duke using FXML.
+ */
+public class Main extends Application {
+
+ private final Duke duke;
+
+ private final TextUi textUi;
+
+ /**
+ * Main constructor, sets up dependencies.
+ * @throws DukeException
+ */
+ public Main() throws DukeException {
+ this.textUi = new TextUi("Pong");
+ this.duke = new Duke(this.textUi);
+ }
+
+ @Override
+ public void start(Stage stage) {
+ try {
+ FXMLLoader fxmlLoader = new FXMLLoader(Main.class.getResource("/view/MainWindow.fxml"));
+ AnchorPane ap = fxmlLoader.load();
+ Scene scene = new Scene(ap);
+ stage.setScene(scene);
+ fxmlLoader.getController().setDuke(duke);
+ fxmlLoader.getController().setTextUi(textUi);
+ stage.show();
+ } catch (IOException e) {
+ e.printStackTrace();
+ }
+ }
+}
diff --git a/src/main/java/duke/MainWindow.java b/src/main/java/duke/MainWindow.java
new file mode 100644
index 0000000000..c9ec20d0b6
--- /dev/null
+++ b/src/main/java/duke/MainWindow.java
@@ -0,0 +1,74 @@
+package duke;
+
+import duke.ui.TextUi;
+import javafx.application.Platform;
+import javafx.fxml.FXML;
+import javafx.scene.control.Button;
+import javafx.scene.control.ScrollPane;
+import javafx.scene.control.TextField;
+import javafx.scene.image.Image;
+import javafx.scene.layout.AnchorPane;
+import javafx.scene.layout.VBox;
+
+/**
+ * Controller for MainWindow. Provides the layout for the other controls.
+ */
+public class MainWindow extends AnchorPane {
+ @FXML
+ private ScrollPane scrollPane;
+ @FXML
+ private VBox dialogContainer;
+ @FXML
+ private TextField userInput;
+ @FXML
+ private Button sendButton;
+
+ private Duke duke;
+ private TextUi textUi;
+
+ private final Image userImage = new Image(this.getClass().getResourceAsStream("/images/DaUser.png"));
+ private final Image dukeImage = new Image(this.getClass().getResourceAsStream("/images/DaDuke.png"));
+
+ @FXML
+ public void initialize() {
+ scrollPane.vvalueProperty().bind(dialogContainer.heightProperty());
+ }
+
+ public void setDuke(Duke d) {
+ duke = d;
+ }
+
+ public void setTextUi(TextUi textUi) {
+ this.textUi = textUi;
+ }
+
+ /**
+ * Creates two dialog boxes, one echoing user input and the other containing Duke's reply and then appends them to
+ * the dialog container. Clears the user input after processing.
+ */
+ @FXML
+ private void handleUserInput() {
+ boolean isRunning;
+ String input = userInput.getText();
+
+ try {
+ isRunning = duke.handleInput(input);
+ if (!isRunning) {
+ exit();
+ }
+ } catch (DukeException e) {
+ duke.handleException(e);
+ }
+
+ String response = textUi.getTextOutput();
+ dialogContainer.getChildren().addAll(
+ DialogBox.getUserDialog(input, userImage),
+ DialogBox.getDukeDialog(response, dukeImage)
+ );
+ userInput.clear();
+ }
+
+ private void exit() {
+ Platform.exit();
+ }
+}
diff --git a/src/main/java/duke/task/Deadline.java b/src/main/java/duke/task/Deadline.java
new file mode 100644
index 0000000000..08aecb79f8
--- /dev/null
+++ b/src/main/java/duke/task/Deadline.java
@@ -0,0 +1,38 @@
+package duke.task;
+
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+
+/**
+ * Encapsulation of a Deadline task.
+ */
+public class Deadline extends Task {
+ private final LocalDateTime deadline;
+
+ /**
+ * Deadline constructor.
+ * @param deadlineName Name of deadline.
+ * @param deadline Time and date of the deadline.
+ */
+ public Deadline(String deadlineName, LocalDateTime deadline) {
+ super(deadlineName);
+ this.deadline = deadline;
+ }
+
+ @Override
+ public String toString() {
+ DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm");
+ return String.format("[D]%s (by: %s)", super.toString(), this.deadline.format(formatter));
+ }
+
+ @Override
+ public String serialize() {
+ DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy/MM/dd HHmm");
+ return String.format(
+ "deadline %s /by %s%s",
+ getTaskName(),
+ this.deadline.format(formatter),
+ this.isDone() ? " /done" : ""
+ );
+ }
+}
diff --git a/src/main/java/duke/task/Event.java b/src/main/java/duke/task/Event.java
new file mode 100644
index 0000000000..10afc87e93
--- /dev/null
+++ b/src/main/java/duke/task/Event.java
@@ -0,0 +1,48 @@
+package duke.task;
+
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+
+/**
+ * Encapsulation of an Event task.
+ */
+public class Event extends Task {
+ private final LocalDateTime from;
+
+ private final LocalDateTime to;
+
+ /**
+ * Constructor for Event.
+ * @param eventName Name of event.
+ * @param from Date and time of event start.
+ * @param to Date and time of event end.
+ */
+ public Event(String eventName, LocalDateTime from, LocalDateTime to) {
+ super(eventName);
+ this.from = from;
+ this.to = to;
+ }
+
+ @Override
+ public String toString() {
+ DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm");
+ return String.format(
+ "[E]%s (from: %s, to: %s)",
+ super.toString(),
+ this.from.format(formatter),
+ this.to.format(formatter)
+ );
+ }
+
+ @Override
+ public String serialize() {
+ DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy/MM/dd HHmm");
+ return String.format(
+ "event %s /from %s /to %s%s",
+ getTaskName(),
+ this.from.format(formatter),
+ this.to.format(formatter),
+ this.isDone() ? " /done" : ""
+ );
+ }
+}
diff --git a/src/main/java/duke/task/Task.java b/src/main/java/duke/task/Task.java
new file mode 100644
index 0000000000..6a2dc919fa
--- /dev/null
+++ b/src/main/java/duke/task/Task.java
@@ -0,0 +1,61 @@
+package duke.task;
+
+/**
+ * Abstract class encapsulating Tasks.
+ */
+public abstract class Task {
+ private boolean isDone;
+ private final String taskName;
+
+ /**
+ * Constructor for a Task.
+ * @param taskName Name of task.
+ */
+ public Task(String taskName) {
+ this.isDone = false;
+ this.taskName = taskName;
+ }
+
+ /**
+ * Check if task is marked done.
+ * @return true if task is marked done else false.
+ */
+ public boolean isDone() {
+ return this.isDone;
+ }
+
+ /**
+ * Mark task as done.
+ */
+ public void markDone() {
+ this.isDone = true;
+ }
+
+ /**
+ * Mark task as not done.
+ */
+ public void unmarkDone() {
+ this.isDone = false;
+ }
+
+ /**
+ * Get name of task.
+ * @return Name of task.
+ */
+ public String getTaskName() {
+ return this.taskName;
+ }
+
+ @Override
+ public String toString() {
+ return String.format("[%c] %s", (this.isDone ? 'X' : ' '), this.taskName);
+ }
+
+ /**
+ * Convert data contained by the task into a
+ * string format to be stored and deserialized back
+ * into a Task object in the future.
+ * @return Serialized string representation of Task instance.
+ */
+ public abstract String serialize();
+}
diff --git a/src/main/java/duke/task/TaskList.java b/src/main/java/duke/task/TaskList.java
new file mode 100644
index 0000000000..778e97f347
--- /dev/null
+++ b/src/main/java/duke/task/TaskList.java
@@ -0,0 +1,110 @@
+package duke.task;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Collectors;
+
+import duke.DukeException;
+
+/**
+ * Helper class encapsulating list of tasks
+ * provides methods for basic operations as well.
+ */
+public class TaskList {
+ private final ArrayList tasks;
+
+ private final TaskStorage storage;
+
+ /**
+ * Initialises duke.TaskList and restores existing tasks
+ * from duke.TaskStorage provided as argument.
+ * @param storage duke.TaskStorage to use for restore/save of tasks.
+ * @throws DukeException If an issue occurs during restore of tasks.
+ */
+ public TaskList(TaskStorage storage) throws DukeException {
+ this.storage = storage;
+ this.tasks = storage.loadExistingTasks();
+ }
+
+ /**
+ * Adds task.
+ * @param task duke.Task to add.
+ */
+ public void addTask(Task task) throws DukeException {
+ this.tasks.add(task);
+ storeTasks();
+ }
+
+ /**
+ * Deletes task by index.
+ * @param index Index of task to delete.
+ * @return duke.Task deleted.
+ */
+ public Task deleteTask(int index) throws DukeException {
+ index -= 1;
+
+ if (index < 0 || index >= this.tasks.size()) {
+ throw new DukeException("Index out of bounds");
+ }
+
+ Task task = this.tasks.remove(index);
+ storeTasks();
+ return task;
+ }
+
+ /**
+ * Marks task as done.
+ * @param index Index of task to mark.
+ */
+ public Task markTask(int index) throws DukeException {
+ index -= 1;
+
+ if (index < 0 || index >= this.tasks.size()) {
+ throw new DukeException("Index out of bounds");
+ }
+
+ Task task = this.tasks.get(index);
+ task.markDone();
+ storeTasks();
+ return task;
+ }
+
+ /**
+ * Marks task as not done.
+ * @param index Index of task to unmark.
+ */
+ public Task unmarkTask(int index) throws DukeException {
+ index -= 1;
+
+ if (index < 0 || index >= this.tasks.size()) {
+ throw new DukeException("Index out of bounds");
+ }
+
+ Task task = this.tasks.get(index);
+ task.unmarkDone();
+ storeTasks();
+ return task;
+ }
+
+ /**
+ * Get all tasks.
+ * @return All tasks.
+ */
+ public List getTasks() {
+ return this.tasks;
+ }
+
+ /**
+ * Find tasks with names that match search term.
+ * @return List of tasks that match search.
+ */
+ public List findTasks(String search) {
+ return this.tasks.stream()
+ .filter(t -> t.getTaskName().toLowerCase().contains(search.toLowerCase()))
+ .collect(Collectors.toList());
+ }
+
+ private void storeTasks() throws DukeException {
+ this.storage.storeTasks(this.tasks);
+ }
+}
diff --git a/src/main/java/duke/task/TaskStorage.java b/src/main/java/duke/task/TaskStorage.java
new file mode 100644
index 0000000000..9b84ab4361
--- /dev/null
+++ b/src/main/java/duke/task/TaskStorage.java
@@ -0,0 +1,110 @@
+package duke.task;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Collectors;
+
+import duke.DukeException;
+import duke.ui.Parser;
+
+/**
+ * Handles storage of tasks.
+ * Uses text file as storage method.
+ */
+public class TaskStorage {
+ public static final String DEFAULT_PATH = "./data/duke.txt";
+
+ private final File file;
+
+ /**
+ * TaskStorage constructor, uses default path.
+ */
+ public TaskStorage() {
+ this.file = new File(DEFAULT_PATH);
+ }
+
+ /**
+ * Load existing tasks from text file.
+ * @return ArrayList of Tasks loaded
+ * @throws DukeException Any errors encountered while loading
+ */
+ public ArrayList loadExistingTasks() throws DukeException {
+ try {
+ if (!this.file.exists()) {
+ this.file.getParentFile().mkdirs();
+ this.file.createNewFile();
+ return new ArrayList<>();
+ }
+
+ ArrayList tasks = new ArrayList<>();
+ FileReader fileReader = new FileReader(this.file);
+ BufferedReader bufferedReader = new BufferedReader(fileReader);
+
+ // Format: ||[|...]
+ Parser parser;
+ String line;
+ while ((line = bufferedReader.readLine()) != null) {
+ Task task;
+ parser = Parser.from(line);
+
+ switch(parser.getCommand()) {
+ case "todo":
+ task = new Todo(parser.getArg());
+ break;
+ case "deadline":
+ task = new Deadline(
+ parser.getArg(),
+ parser.getOptArgAsDateTime("by")
+ );
+ break;
+ case "event":
+ task = new Event(
+ parser.getArg(),
+ parser.getOptArgAsDateTime("from"),
+ parser.getOptArgAsDateTime("to")
+ );
+ break;
+ default:
+ continue;
+ }
+
+ if (parser.getOptArg("done") != null) {
+ task.markDone();
+ }
+
+ tasks.add(task);
+ }
+ fileReader.close();
+
+ return tasks;
+ } catch (IOException e) {
+ throw new DukeException("Error while loading tasks: " + e.getMessage());
+ }
+ }
+
+
+ /**
+ * Stores serialized tasks in text file.
+ * @param tasks Tasks to store
+ * @throws DukeException Any errors encountered while storing
+ */
+ public void storeTasks(List tasks) throws DukeException {
+ String serialized = tasks.stream()
+ .map(Task::serialize)
+ .collect(Collectors.joining("\n"));
+
+ try {
+ FileWriter fileWriter = new FileWriter(this.file);
+ fileWriter.write(serialized);
+ fileWriter.flush();
+ fileWriter.close();
+ } catch (IOException e) {
+ throw new DukeException("Error while storing tasks: " + e.getMessage());
+ }
+ }
+}
diff --git a/src/main/java/duke/task/Todo.java b/src/main/java/duke/task/Todo.java
new file mode 100644
index 0000000000..39948d429c
--- /dev/null
+++ b/src/main/java/duke/task/Todo.java
@@ -0,0 +1,28 @@
+package duke.task;
+
+/**
+ * Encapsulation of a Todo task.
+ */
+public class Todo extends Task {
+ /**
+ * Constructor for Todo.
+ * @param todoName Name of todo.
+ */
+ public Todo(String todoName) {
+ super(todoName);
+ }
+
+ @Override
+ public String toString() {
+ return String.format("[T]%s", super.toString());
+ }
+
+ @Override
+ public String serialize() {
+ return String.format(
+ "todo %s%s",
+ getTaskName(),
+ this.isDone() ? " /done" : ""
+ );
+ }
+}
diff --git a/src/main/java/duke/ui/CliUi.java b/src/main/java/duke/ui/CliUi.java
new file mode 100644
index 0000000000..c93299848c
--- /dev/null
+++ b/src/main/java/duke/ui/CliUi.java
@@ -0,0 +1,88 @@
+package duke.ui;
+
+import java.util.List;
+import java.util.Scanner;
+
+import duke.task.Task;
+
+/**
+ * Helper class for user interface, handles
+ * user input and outputting to the user.
+ */
+public class CliUi implements Ui {
+ private static final String DOTTED_LINE = "____________________________________________________________";
+
+ private final String name;
+
+ private final Scanner scanner;
+
+ /**
+ * Initialise Ui handler.
+ * @param name Name of chatbot.
+ */
+ public CliUi(String name) {
+ this.name = name;
+ this.scanner = new Scanner(System.in);
+ }
+
+ @Override
+ public void init() {
+ System.out.println(CliUi.DOTTED_LINE);
+ System.out.printf("Hello! I'm %s\n", this.name);
+ System.out.println("What can I do for you?");
+ System.out.println(CliUi.DOTTED_LINE);
+ }
+
+ @Override
+ public String getInput() {
+ System.out.print("You: ");
+ return scanner.nextLine();
+ }
+
+ @Override
+ public void printException(Exception e) {
+ System.out.printf("[!] %s\n", e.getMessage());
+ }
+
+ @Override
+ public void exit() {
+ System.out.println(CliUi.DOTTED_LINE);
+ System.out.println("Bye. Hope to see you again soon!");
+ System.out.println(CliUi.DOTTED_LINE);
+ }
+
+ @Override
+ public void addTask(Task task) {
+ System.out.printf("%s: [Added] %s\n", this.name, task);
+ }
+
+ @Override
+ public void deleteTask(Task task) {
+ System.out.printf("%s: [Deleted] %s\n", this.name, task);
+ }
+
+ @Override
+ public void markTask(Task task) {
+ System.out.printf("%s: I've marked this task as done.\n", this.name);
+ System.out.printf(" %s\n", task);
+ }
+
+ @Override
+ public void unmarkTask(Task task) {
+ System.out.printf("%s: I've marked this task as not done.\n", this.name);
+ System.out.printf(" %s\n", task);
+ }
+
+ @Override
+ public void listTasks(List tasks) {
+ System.out.printf("%s: \n", this.name);
+ for (int i = 0; i < tasks.size(); i++) {
+ System.out.printf(" %d. %s\n", i + 1, tasks.get(i));
+ }
+ }
+
+ @Override
+ public void invalidCommand(String command) {
+ System.out.printf("%s: Invalid command (%s)\n", this.name, command);
+ }
+}
diff --git a/src/main/java/duke/ui/Parser.java b/src/main/java/duke/ui/Parser.java
new file mode 100644
index 0000000000..13f0780393
--- /dev/null
+++ b/src/main/java/duke/ui/Parser.java
@@ -0,0 +1,165 @@
+package duke.ui;
+
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.time.LocalDateTime;
+import java.time.ZoneId;
+import java.util.Date;
+import java.util.HashMap;
+
+import duke.DukeException;
+
+/**
+ * Helper class to parse user input.
+ */
+public class Parser {
+ private static final String DELIMITER_REGEX = " (?=/\\w+)";
+
+ private final String command;
+ private final String argument;
+
+ private final HashMap optionalArgs;
+
+ private Parser(String command) {
+ this.command = command;
+ this.argument = null;
+ this.optionalArgs = null;
+ }
+
+ private Parser(String command, String argument, HashMap optionalArgs) {
+ this.command = command;
+ this.argument = argument;
+ this.optionalArgs = optionalArgs;
+ }
+
+ /**
+ * Factory method to parses line of input and
+ * extract task type, name and optional args.
+ * @param line User input.
+ * @return duke.Parser instance with parsed information.
+ * @throws DukeException If input does not match expected format.
+ */
+ public static Parser from(String line) throws DukeException {
+ String taskName;
+ String taskType;
+ HashMap optionalArgs;
+
+ int firstSpace = line.indexOf(' ');
+
+ // No arguments (bye/list/...)
+ if (firstSpace == -1) {
+ return new Parser(line);
+ }
+
+ taskType = line.substring(0, firstSpace);
+ String remainder = line.substring(firstSpace + 1);
+ String[] parts = remainder.split(DELIMITER_REGEX);
+
+ if (parts.length < 1 || parts[0].equals("")) {
+ throw new DukeException("Invalid command. Expected format: [...].");
+ }
+
+ taskName = parts[0];
+ optionalArgs = new HashMap<>();
+ for (int i = 1; i < parts.length; i++) {
+ String k;
+ String v;
+ String part = parts[i];
+ int space = part.indexOf(' ');
+
+ if (space == -1) {
+ k = part.substring(1);
+ v = "";
+ } else {
+ k = part.substring(1, space);
+ v = part.substring(space + 1);
+ }
+
+ optionalArgs.put(k, v);
+ }
+
+ return new Parser(taskType, taskName, optionalArgs);
+ }
+
+ /**
+ * Get command.
+ * @return Command name.
+ */
+ public String getCommand() {
+ return this.command;
+ }
+
+ /**
+ * Get first argument.
+ * @return First argument.
+ */
+ public String getArg() {
+ return this.argument;
+ }
+
+ /**
+ * Get first argument as integer.
+ * @return First argument cast to integer.
+ * @throws DukeException If argument cannot be parsed to integer.
+ */
+ public int getArgAsInt() throws DukeException {
+ if (this.argument == null) {
+ throw new DukeException("No integer argument provided");
+ }
+
+ try {
+ return Integer.parseInt(this.argument);
+ } catch (NumberFormatException e) {
+ throw new DukeException(String.format("Invalid integer argument: %s", this.argument));
+ }
+ }
+
+ /**
+ * Get optional argument value.
+ * @param argName Name of argument to get.
+ * @return Value of optional argument or null if not present.
+ */
+ public String getOptArg(String argName) {
+ if (this.optionalArgs == null || !this.optionalArgs.containsKey(argName)) {
+ return null;
+ }
+
+ return this.optionalArgs.get(argName);
+ }
+
+ /**
+ * Get optional argument value as LocalDateTime.
+ * @param argName Name of argument to get.
+ * @return Value of optional argument as LocalDateTime or null if not present.
+ * @throws DukeException If argument value cannot be parsed as LocalDateTime.
+ */
+ public LocalDateTime getOptArgAsDateTime(String argName) throws DukeException {
+ String arg = getOptArg(argName);
+
+ if (arg == null) {
+ return null;
+ }
+
+ SimpleDateFormat dateFormat;
+
+ if (arg.length() == 10) {
+ dateFormat = new SimpleDateFormat("yyyy/MM/dd");
+ } else if (arg.length() == 15) {
+ dateFormat = new SimpleDateFormat("yyyy/MM/dd HHmm");
+ } else {
+ throw new DukeException(String.format("Invalid date (%s), should be yyyy/MM/dd HHmm", arg));
+ }
+
+ Date parsedDate;
+ try {
+ parsedDate = dateFormat.parse(arg);
+ } catch (ParseException e) {
+ throw new DukeException(String.format("Invalid date (%s), should be yyyy/MM/dd HHmm", arg));
+ }
+
+ return parsedDate
+ .toInstant()
+ .atZone(ZoneId.systemDefault())
+ .toLocalDateTime();
+ }
+}
diff --git a/src/main/java/duke/ui/TextUi.java b/src/main/java/duke/ui/TextUi.java
new file mode 100644
index 0000000000..24b0b3efdb
--- /dev/null
+++ b/src/main/java/duke/ui/TextUi.java
@@ -0,0 +1,94 @@
+package duke.ui;
+
+import java.util.List;
+
+import duke.task.Task;
+
+/**
+ * Helper class for user interface, handles
+ * user input and outputting to the user.
+ */
+public class TextUi implements Ui {
+
+ private static final String DOTTED_LINE = "____________________________________________________________";
+ private final StringBuilder buffer;
+
+ private String name;
+
+ /**
+ * Initialise Ui handler.
+ * @param name Name of chatbot.
+ */
+ public TextUi(String name) {
+ this.name = name;
+ this.buffer = new StringBuilder();
+ }
+
+ /**
+ * Get accumulated output from the UI.
+ * @return Text output accumulated so far.
+ */
+ public String getTextOutput() {
+ String out = this.buffer.toString();
+ this.buffer.delete(0, this.buffer.length());
+ return out;
+ }
+
+ @Override
+ public void init() {
+ // Does nothing for TextUi
+ }
+
+ @Override
+ public String getInput() {
+ // Does nothing for TextUi
+ return "";
+ }
+
+ @Override
+ public void printException(Exception e) {
+ this.buffer.append(String.format("[!] %s\n", e.getMessage()));
+ }
+
+ @Override
+ public void exit() {
+ this.buffer.append(TextUi.DOTTED_LINE);
+ this.buffer.append("Bye. Hope to see you again soon!\n");
+ this.buffer.append(TextUi.DOTTED_LINE);
+ }
+
+ @Override
+ public void addTask(Task task) {
+ this.buffer.append(String.format("%s: [Added] %s\n", this.name, task));
+ }
+
+ @Override
+ public void deleteTask(Task task) {
+ this.buffer.append(String.format("%s: [Deleted] %s\n", this.name, task));
+ }
+
+ @Override
+ public void markTask(Task task) {
+ this.buffer.append(String.format("%s: I've marked this task as done.\n", this.name));
+ this.buffer.append(String.format(" %s\n", task));
+ }
+
+ @Override
+ public void unmarkTask(Task task) {
+ this.buffer.append(String.format("%s: I've marked this task as not done.\n", this.name));
+ this.buffer.append(String.format(" %s\n", task));
+ }
+
+ @Override
+ public void listTasks(List tasks) {
+ this.buffer.append(String.format("%s: \n", this.name));
+ for (int i = 0; i < tasks.size(); i++) {
+ this.buffer.append(String.format(" %d. %s\n", i + 1, tasks.get(i)));
+ }
+ }
+
+ @Override
+ public void invalidCommand(String command) {
+ this.buffer.append(String.format("%s: Invalid command (%s)\n", this.name, command));
+ }
+}
diff --git a/src/main/java/duke/ui/Ui.java b/src/main/java/duke/ui/Ui.java
new file mode 100644
index 0000000000..2bea34fda3
--- /dev/null
+++ b/src/main/java/duke/ui/Ui.java
@@ -0,0 +1,68 @@
+package duke.ui;
+
+import java.util.List;
+
+import duke.task.Task;
+
+/**
+ * Ui interface that the various types of Ui should implement.
+ */
+public interface Ui {
+ /**
+ * Initialises Ui.
+ */
+ void init();
+
+ /**
+ * Prompts user and gets user input.
+ * @return String user input.
+ */
+ String getInput();
+
+ /**
+ * Prints exception to user.
+ * @param e Exception to display.
+ */
+ void printException(Exception e);
+
+ /**
+ * Prints exit message to user.
+ */
+ void exit();
+
+ /**
+ * Prints add task message to user.
+ * @param task duke.Task added.
+ */
+ void addTask(Task task);
+
+ /**
+ * Prints delete task message to user.
+ * @param task duke.Task deleted.
+ */
+ void deleteTask(Task task);
+
+ /**
+ * Prints mark task message to user.
+ * @param task duke.Task marked.
+ */
+ void markTask(Task task);
+
+ /**
+ * Prints unmark task message to user.
+ * @param task duke.Task unmarked.
+ */
+ void unmarkTask(Task task);
+
+ /**
+ * Lists all current tasks to user.
+ * @param tasks Tasks to list.
+ */
+ void listTasks(List tasks);
+
+ /**
+ * Prints invalid command message.
+ * @param command Command used.
+ */
+ void invalidCommand(String command);
+}
diff --git a/src/main/resources/images/DaDuke.png b/src/main/resources/images/DaDuke.png
new file mode 100644
index 0000000000..d893658717
Binary files /dev/null and b/src/main/resources/images/DaDuke.png differ
diff --git a/src/main/resources/images/DaUser.png b/src/main/resources/images/DaUser.png
new file mode 100644
index 0000000000..3c82f45461
Binary files /dev/null and b/src/main/resources/images/DaUser.png differ
diff --git a/src/main/resources/view/DialogBox.fxml b/src/main/resources/view/DialogBox.fxml
new file mode 100644
index 0000000000..176e51bcd5
--- /dev/null
+++ b/src/main/resources/view/DialogBox.fxml
@@ -0,0 +1,16 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/src/main/resources/view/MainWindow.fxml b/src/main/resources/view/MainWindow.fxml
new file mode 100644
index 0000000000..9f29e1c72b
--- /dev/null
+++ b/src/main/resources/view/MainWindow.fxml
@@ -0,0 +1,19 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/src/test/java/duke/ParserTest.java b/src/test/java/duke/ParserTest.java
new file mode 100644
index 0000000000..7b5903a147
--- /dev/null
+++ b/src/test/java/duke/ParserTest.java
@@ -0,0 +1,76 @@
+package duke;
+
+import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+import java.time.LocalDateTime;
+import java.time.Month;
+
+import org.junit.jupiter.api.Test;
+
+import duke.ui.Parser;
+
+public class ParserTest {
+ @Test
+ public void from_commandNoArg_success() {
+ assertDoesNotThrow(() -> Parser.from("command"));
+ }
+
+ @Test
+ public void from_commandOneArg_success() {
+ assertDoesNotThrow(() -> Parser.from("command arg"));
+ }
+
+ @Test
+ public void from_commandOptArgs_success() {
+ assertDoesNotThrow(() -> Parser.from("command arg /opt val /opt2 value2"));
+ }
+
+ @Test
+ public void getCommand_valid_success() throws Exception {
+ assertEquals(Parser.from("command").getCommand(), "command");
+ assertEquals(Parser.from("command arg").getCommand(), "command");
+ assertEquals(Parser.from("command arg /opt val").getCommand(), "command");
+ }
+
+ @Test
+ public void getArg_valid_success() throws Exception {
+ assertNull(Parser.from("command").getArg());
+ assertEquals(Parser.from("command arg").getArg(), "arg");
+ assertEquals(Parser.from("command arg /opt val").getArg(), "arg");
+ }
+
+ @Test
+ public void getOptArg_valid_success() throws Exception {
+ assertNull(Parser.from("command").getOptArg("opt"));
+ assertNull(Parser.from("command arg").getOptArg("opt"));
+ assertEquals(Parser.from("command arg /opt val").getOptArg("opt"), "val");
+ }
+
+ @Test
+ public void getOptArgAsDateTime_validDateTime_success() throws Exception {
+ assertEquals(
+ Parser.from("command arg /opt 2023/02/01").getOptArgAsDateTime("opt"),
+ LocalDateTime.of(2023, Month.FEBRUARY, 1, 0, 0)
+ );
+ assertEquals(
+ Parser.from("command arg /opt 2023/02/01 1230").getOptArgAsDateTime("opt"),
+ LocalDateTime.of(2023, Month.FEBRUARY, 1, 12, 30)
+ );
+ }
+
+ @Test
+ public void getOptArgAsDateTime_invalidDateTime_throws() {
+ assertThrows(
+ DukeException.class, ()
+ -> Parser.from("command arg /opt 2023-02-01").getOptArgAsDateTime("opt")
+ );
+
+ assertThrows(
+ DukeException.class, ()
+ -> Parser.from("command arg /opt aaaa /b bbbb").getOptArgAsDateTime("opt")
+ );
+ }
+}
diff --git a/src/test/java/duke/TaskListTest.java b/src/test/java/duke/TaskListTest.java
new file mode 100644
index 0000000000..426a0aed9d
--- /dev/null
+++ b/src/test/java/duke/TaskListTest.java
@@ -0,0 +1,100 @@
+package duke;
+
+import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.junit.jupiter.api.Test;
+
+import duke.mocks.TaskMock;
+import duke.mocks.TaskStorageMock;
+import duke.task.Task;
+import duke.task.TaskList;
+import duke.task.TaskStorage;
+
+public class TaskListTest {
+ @Test
+ public void constructor_normal_success() {
+ assertDoesNotThrow(() -> new TaskList(new TaskStorageMock(null)));
+ }
+
+ @Test
+ public void constructor_someTasks_success() {
+ TaskStorage taskStorage = new TaskStorageMock(
+ new ArrayList<>(List.of(
+ new TaskMock("A"),
+ new TaskMock("B"),
+ new TaskMock("C")
+ ))
+ );
+ assertDoesNotThrow(() -> new TaskList(taskStorage));
+ }
+
+ @Test
+ public void constructor_getTasks_success() throws Exception {
+ TaskStorage taskStorage = new TaskStorageMock(
+ new ArrayList<>(List.of(
+ new TaskMock("A"),
+ new TaskMock("B"),
+ new TaskMock("C")
+ ))
+ );
+ TaskList taskList = new TaskList(taskStorage);
+ List tasks = taskList.getTasks();
+ assertEquals(tasks.size(), 3);
+ assertEquals(tasks.get(0).toString(), "A");
+ assertEquals(tasks.get(1).toString(), "B");
+ assertEquals(tasks.get(2).toString(), "C");
+ }
+
+ @Test
+ public void addTask_normal_success() throws Exception {
+ TaskStorage taskStorage = new TaskStorageMock(new ArrayList<>(List.of()));
+ TaskList taskList = new TaskList(taskStorage);
+
+ taskList.addTask(new TaskMock("A"));
+ List tasks = taskList.getTasks();
+ assertEquals(tasks.size(), 1);
+ assertEquals(tasks.get(0).toString(), "A");
+
+ taskList.addTask(new TaskMock("B"));
+ tasks = taskList.getTasks();
+ assertEquals(tasks.size(), 2);
+ assertEquals(tasks.get(0).toString(), "A");
+ assertEquals(tasks.get(1).toString(), "B");
+ }
+
+ @Test
+ public void deleteTask_normal_success() throws Exception {
+ TaskStorage taskStorage = new TaskStorageMock(
+ new ArrayList<>(List.of(
+ new TaskMock("A"),
+ new TaskMock("B"),
+ new TaskMock("C")
+ ))
+ );
+ TaskList taskList = new TaskList(taskStorage);
+
+ taskList.deleteTask(2);
+ List tasks = taskList.getTasks();
+ assertEquals(tasks.size(), 2);
+ assertEquals(tasks.get(0).toString(), "A");
+ assertEquals(tasks.get(1).toString(), "C");
+ }
+
+ @Test
+ public void deleteTask_outOfBounds_success() throws Exception {
+ TaskStorage taskStorage = new TaskStorageMock(
+ new ArrayList<>(List.of(
+ new TaskMock("A"),
+ new TaskMock("B"),
+ new TaskMock("C")
+ ))
+ );
+ TaskList taskList = new TaskList(taskStorage);
+ assertThrows(DukeException.class, () -> taskList.deleteTask(9));
+ }
+}
diff --git a/src/test/java/duke/mocks/TaskMock.java b/src/test/java/duke/mocks/TaskMock.java
new file mode 100644
index 0000000000..341fc30acd
--- /dev/null
+++ b/src/test/java/duke/mocks/TaskMock.java
@@ -0,0 +1,29 @@
+package duke.mocks;
+
+import duke.task.Task;
+
+/**
+ * Mock Task class.
+ */
+public class TaskMock extends Task {
+ private final String taskName;
+
+ /**
+ * Initialises mock task.
+ * @param taskName Name of mock task.
+ */
+ public TaskMock(String taskName) {
+ super(taskName);
+ this.taskName = taskName;
+ }
+
+ @Override
+ public String serialize() {
+ return "SERIALIZED";
+ }
+
+ @Override
+ public String toString() {
+ return this.taskName;
+ }
+}
diff --git a/src/test/java/duke/mocks/TaskStorageMock.java b/src/test/java/duke/mocks/TaskStorageMock.java
new file mode 100644
index 0000000000..bf9c55e429
--- /dev/null
+++ b/src/test/java/duke/mocks/TaskStorageMock.java
@@ -0,0 +1,32 @@
+package duke.mocks;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import duke.task.Task;
+import duke.task.TaskStorage;
+
+/**
+ * Mock TaskStorage to aid testing.
+ */
+public class TaskStorageMock extends TaskStorage {
+ private final ArrayList tasks;
+
+ /**
+ * Initialise TaskStorageMock.
+ * @param tasks Tasks in this mock storage.
+ */
+ public TaskStorageMock(ArrayList tasks) {
+ super();
+ this.tasks = tasks;
+ }
+
+ @Override
+ public ArrayList loadExistingTasks() {
+ return this.tasks;
+ }
+
+ @Override
+ public void storeTasks(List tasks) {
+ }
+}
diff --git a/text-ui-test/EXPECTED.TXT b/text-ui-test/EXPECTED.TXT
index 657e74f6e7..5ac97364b8 100644
--- a/text-ui-test/EXPECTED.TXT
+++ b/text-ui-test/EXPECTED.TXT
@@ -1,7 +1,16 @@
-Hello from
- ____ _
-| _ \ _ _| | _____
-| | | | | | | |/ / _ \
-| |_| | |_| | < __/
-|____/ \__,_|_|\_\___|
-
+____________________________________________________________
+Hello! I'm Pong
+What can I do for you?
+____________________________________________________________
+You: Pong: [Added] [T][ ] borrow book
+You: Pong:
+ 1. [T][ ] borrow book
+You: Pong: [Added] [D][ ] return book (by: Sunday)
+You: Pong: [Added] [E][ ] project meeting (from: Mon 2pm to: 4pm)
+You: Pong:
+ 1. [T][ ] borrow book
+ 2. [D][ ] return book (by: Sunday)
+ 3. [E][ ] project meeting (from: Mon 2pm to: 4pm)
+You: ____________________________________________________________
+Bye. Hope to see you again soon!
+____________________________________________________________
diff --git a/text-ui-test/input.txt b/text-ui-test/input.txt
index e69de29bb2..f37f9e5ab3 100644
--- a/text-ui-test/input.txt
+++ b/text-ui-test/input.txt
@@ -0,0 +1,6 @@
+todo borrow book
+list
+deadline return book /by Sunday
+event project meeting /from Mon 2pm /to 4pm
+list
+bye
\ No newline at end of file
diff --git a/text-ui-test/runtest.bat b/text-ui-test/runtest.bat
index 0873744649..62752b8814 100644
--- a/text-ui-test/runtest.bat
+++ b/text-ui-test/runtest.bat
@@ -15,7 +15,7 @@ IF ERRORLEVEL 1 (
REM no error here, errorlevel == 0
REM run the program, feed commands from input.txt file and redirect the output to the ACTUAL.TXT
-java -classpath ..\bin Duke < input.txt > ACTUAL.TXT
+java -classpath ..\bin duke.Duke < input.txt > ACTUAL.TXT
REM compare the output to the expected output
FC ACTUAL.TXT EXPECTED.TXT
diff --git a/text-ui-test/runtest.sh b/text-ui-test/runtest.sh
old mode 100644
new mode 100755