Update Documentation for Schedule and Complete feature in DG

docs/DeveloperGuide.md

@@ -176,6 +176,10 @@ After the `AddressBookParser` identifies that the user's input has a schedule co
 
 <img src="images/ScheduleClassDiagram.png" width="400"/>
 
+The following activity diagram summarises what happens the user executes a schedule command. 
+
+<img src="images/ScheduleActivityDiagram.png" width="400"/>
+
 **Design Considerations**
 
 **Aspect: How to implement Appointments for Person**  
@@ -204,7 +208,19 @@ Alternative 2: Create a hashset of Appointments for each Person.
   * Harder to implement operations such as editing of an appointment for a client. An additional step of finding the specified appointment within the hashset is required, which may potentially introduce more bugs.
   * Harder to implement default behaviours for when person has no appointment.
 
+### Complete Feature
+
+The **Complete** feature is facilitated by the `CompleteCommand` and `CompleteCommandParser`. The `CompleteCommandParser` creates a `CompleteCommand` associated with a `CompleteCommandDescriptor` which contains information on how the appointments should be completed.
+
+The following sequence diagram illustrates how the complete operation is executed when date given. 
+
+<img src="images/CompleteSequenceDiagram.png" width="800"/>
+
+> :warn: The lifeline of the diagram should end at the destroyer mark (X) but reaches end of diagram due to limitation of plantUML
+
+The following activity diagram illustrates how the complete operation is executed. 
 
+<img src="images/CompleteActivityDiagram.png" width="800"/>
 
 ### Gather Emails Feature
 

docs/diagrams/CompleteActivityDiagram.puml

@@ -0,0 +1,40 @@
+@startuml
+skin rose
+skinparam ActivityFontSize 15
+skinparam ArrowFontSize 12
+start
+:User enters a complete command;
+
+:CompleteCommandParser parses the user input and checks validity;
+
+
+'Since the beta syntax does not support placing the condition outside the
+'diamond we place it as the true branch instead.
+
+switch ()
+case([the complete command is valid])
+    : Creates a CompleteCommand which is executed by LogicManager;
+    switch ()
+          case ([index input by user])
+            : Checks for appointment of given person in FilterPersonList;
+            switch ()
+            case([if have appointment])
+            : Clears appointment for the Person;
+            case([if no appointment])
+            : Throws an error;
+            endswitch
+          case ([date input by user])
+            : Checks for persons in FilterPersonList who appointment date matches input;
+            switch()
+            case([have at least one appointment with date matching input in list])
+            : Clears all appointments with matching dates;
+            case([no appointment date matches input])
+            : Throws an error;
+            endswitch
+        endswitch
+case([else])
+    : Throws an error;
+endswitch
+stop
+@enduml
+

docs/diagrams/CompleteSequenceDiagram.puml

@@ -0,0 +1,97 @@
+@startuml
+!include style.puml
+skinparam ArrowFontStyle plain
+
+box Logic LOGIC_COLOR_T1
+participant ":LogicManager" as LogicManager LOGIC_COLOR
+participant ":AddressBookParser" as AddressBookParser LOGIC_COLOR
+participant ":CompleteCommandParser" as CompleteCommandParser LOGIC_COLOR
+participant ":CompleteCommandDescriptor" as CompleteCommandDescriptor LOGIC_COLOR
+participant "c:CompleteCommand" as CompleteCommand LOGIC_COLOR
+participant ":CommandResult" as CommandResult LOGIC_COLOR
+end box
+
+box Model MODEL_COLOR_T1
+participant ":Model" as Model MODEL_COLOR
+end box
+
+[-> LogicManager : execute("complete d/01-01-2023")
+activate LogicManager
+
+LogicManager -> AddressBookParser : parseCommand("complete d/01-01-2023")")
+activate AddressBookParser
+
+create CompleteCommandParser
+AddressBookParser -> CompleteCommandParser
+activate CompleteCommandParser
+
+CompleteCommandParser --> AddressBookParser
+deactivate CompleteCommandParser
+
+AddressBookParser -> CompleteCommandParser : parse("d/01-01-2023")
+activate CompleteCommandParser
+
+create CompleteCommandDescriptor
+CompleteCommandParser -> CompleteCommandDescriptor
+activate CompleteCommandDescriptor
+
+CompleteCommandDescriptor --> CompleteCommandParser
+deactivate CompleteCommandDescriptor
+
+CompleteCommandParser -> CompleteCommandDescriptor
+activate CompleteCommandDescriptor
+CompleteCommandDescriptor -> CompleteCommandDescriptor : sets Date to LocalDate parsed by parser
+activate CompleteCommandDescriptor
+CompleteCommandDescriptor --> CompleteCommandDescriptor :
+deactivate CompleteCommandDescriptor
+CompleteCommandDescriptor --> CompleteCommandParser
+deactivate
+
+
+create CompleteCommand
+CompleteCommandParser -> CompleteCommand
+activate CompleteCommand
+
+CompleteCommand --> CompleteCommandParser : c
+deactivate CompleteCommand
+
+CompleteCommandParser --> AddressBookParser : c
+deactivate CompleteCommandParser
+'Hidden arrow to position the destroy marker below the end of the activation bar.
+CompleteCommandParser -[hidden]-> AddressBookParser
+destroy CompleteCommandParser
+
+AddressBookParser --> LogicManager : c
+deactivate AddressBookParser
+
+LogicManager -> CompleteCommand : execute()
+activate CompleteCommand
+
+CompleteCommand -> CompleteCommandDescriptor : getDate()
+activate CompleteCommandDescriptor
+CompleteCommandDescriptor --> CompleteCommand
+deactivate CompleteCommandDescriptor
+
+CompleteCommand -> Model : clear appointments by date
+activate Model
+
+Model --> CompleteCommand
+deactivate Model
+
+create CommandResult
+CompleteCommand -> CommandResult
+activate CommandResult
+
+CommandResult --> CompleteCommand
+deactivate CommandResult
+
+CompleteCommand --> LogicManager : result
+deactivate CompleteCommand
+
+CompleteCommand -[hidden]-> CompleteCommandParser
+destroy CompleteCommand
+destroy CompleteCommandParser
+
+[<--LogicManager
+deactivate LogicManager
+@enduml

docs/diagrams/ScheduleActivityDiagram.puml

@@ -0,0 +1,22 @@
+@startuml
+skin rose
+skinparam ActivityFontSize 15
+skinparam ArrowFontSize 12
+start
+:User enters a schedule command;
+
+:ScheduleCommandParser parses the user input and checks validity;
+
+
+'Since the beta syntax does not support placing the condition outside the
+'diamond we place it as the true branch instead.
+
+switch ()
+case([the schedule command is valid])
+    : Creates a ScheduleCommand which is executed by Logic Manager;
+    : Updates Person in FilterPersonList to have the scheduled appointment;
+case([else])
+    : Throws an error;
+endswitch
+stop
+@enduml