Update DG with sequence diagram

StonksXD_Entries.csv

@@ -1,5 +1,9 @@
 entry_type,entry_description,amount,category,date
 E,qwe,12.5,FOOD,11/11/2121
 E,qwe,0.5,FOOD,11/11/2121
+E,food,500.0,FOOD,06/11/2021
+E,a,5.0E8,FOOD,06/11/2021
+E,a,5.0E8,FOOD,06/11/2021
+E,a,5.0E8,FOOD,06/11/2021
 I,qwe,12.5,SALARY,11/11/2121
 I,qwe,12.5,ALLOWANCE,11/11/2121

docs/DeveloperGuide.md

@@ -87,7 +87,10 @@ It interacts with `FinancialTracker` and `BudgetManager` and receives commands f
 
 `DataManager` ← `StonksXD_data.csv`
 
+The Sequence Diagram below shows how the components interact with each other in a typical feedback loop.
+It is illustrated using the hypothetical scenario where the user issues the command `del_ex i/1`.
 
+![](StonksXDSequenceDiagram.drawio.png)
 The sections below provide more information on the respective components.
 
 ---
@@ -129,6 +132,21 @@ The `Parser` class is in charge of:
 
 `Parser` mainly uses regex to parse items.
 
+---
+
+### Financial Tracker Component
+
+The `FinancialTracker` class is in charge of storing, deleting, and retrieving income and 
+expense related calculations while the program is running. It performs these operations based
+on the different commands it receives from the user.
+
+The class diagram below shows the structure of `FinancialTracker`.
+
+![](FinancialTrackerCD.drawio.png) 
+
+<to be updated>
+
+---
 
 ##### Converting user inputs to commands
 
@@ -339,7 +357,11 @@ It is designed to fit the needs of students who travel frequently and prefer log
 
 ### Value proposition
 
-{Describe the value proposition: what problem does it solve?}
+StonksXD a global financial tracking journal, capable of both budgeting and 
+analysis to serve financial needs while traveling. It is highly operable and 
+intuitive command line program that is simple to use and is optimized for 
+anyone on the go. Using a minimalistic command format, we aim to empower 
+youth to manage their finances by making personal finance entries simple.
 
 ---
 
@@ -486,7 +508,7 @@ Below is a list of the currently available tests:
 Intellij comes with an in-built Gradle Daemon that can be used to run the following test:
 
 - `.\gradlew test` to check if all test files have passed.
-- `.\graldew checkStyleTest` to check if test files comply with certain coding standards and conventions.
+- `.\gradlew checkStyleTest` to check if test files comply with certain coding standards and conventions.
 - `.\gradlew checkStyleMain` to check if main program complies with all JAVA coding standards.
 <br>
 

src/main/java/seedu/duke/StonksXD.java

@@ -21,6 +21,7 @@ public class StonksXD {
     private final DataManager dataManager;
     private final BudgetManager budgetManager;
     private final CurrencyManager currencyManager;
+    private boolean isNonTerminatingCommand = true;
 
     /**
      * Constructor for StonksXD. It instantiates all the components used and are crucial to the functioning of the 
@@ -43,17 +44,21 @@ public StonksXD() {
      */
     public void run() {
         ui.printWelcome();
-        boolean isNonTerminatingCommand = true;
+
         while (isNonTerminatingCommand) {
             String fullCommand = ui.readCommand();
             Command command = parser.parseCommand(fullCommand);
             command.execute(finances, ui, budgetManager, currencyManager);
             if (command.isExit()) {
-                isNonTerminatingCommand = false;
+                terminateStonksXD();
             }
             dataManager.saveAll();
         }
-        //ui.printBye(getRandomAdvice());
+        //ui.printBye();
+    }
+
+    private void terminateStonksXD() {
+        isNonTerminatingCommand = false;
     }
 
     /**

src/main/java/seedu/utility/Ui.java

@@ -11,6 +11,8 @@
 import java.util.ArrayList;
 import java.util.Scanner;
 
+import static seedu.utility.tools.FinancialAdvisor.getRandomAdvice;
+
 /**
  * Represents a user interface where feedbacks are given in response to user input.
  */
@@ -300,13 +302,12 @@ public void printHelp() {
     /**
      * Prints the termination message of the STONKS XD program.
      *
-     * @param advice The advice given by our Stonks program, given from a list of random advices.
      */
-    public void printBye(String advice) {
+    public void printBye() {
         printLine();
         System.out.println(Messages.BYE_MESSAGE);
         System.out.println(NEW_LINE);
-        System.out.println(Messages.TIP_HEADER + advice);
+        System.out.println(Messages.TIP_HEADER + getRandomAdvice());
         printLine();
     }