Add view command for monthly calendar view

src/planmysem/commands/ViewCommand.java

@@ -0,0 +1,137 @@
+package planmysem.commands;
+
+import java.time.LocalDate;
+import java.util.HashMap;
+
+import planmysem.data.semester.Day;
+import planmysem.data.semester.Semester;
+
+/**
+ * Adds a person to the address book.
+ */
+public class ViewCommand extends Command {
+
+    public static final String COMMAND_WORD = "view";
+    public static final String COMMAND_WORD_SHORT = "v";
+
+    public static final String MESSAGE_USAGE = COMMAND_WORD + ": View month/week/day view or all details of planner."
+            + "\n\tParameters: "
+            + "\n\t\tMandatory: [viewType] [specifier]"
+            + "\n\tExample 1: " + COMMAND_WORD
+            + " month"
+            + "\n\tExample 2: " + COMMAND_WORD
+            + " week 7"
+            + "\n\tExample 3: " + COMMAND_WORD
+            + " week recess"
+            + "\n\tExample 4: " + COMMAND_WORD
+            + " day 01/03/2019"
+            + "\n\tExample 5: " + COMMAND_WORD
+            + " all";
+
+    private final String viewArgs;
+
+    public ViewCommand(String viewArgs) {
+        this.viewArgs = viewArgs;
+    }
+
+    @Override
+    public CommandResult execute() {
+        String viewType;
+        //String viewSpecifier;
+        final Semester currentSemester = planner.getSemester();
+        String output = null;
+
+        if ("all".equals(viewArgs)) {
+            //TODO: print all planner details
+            output = "all";
+        } else if ("month".equals(viewArgs)) {
+            output = displayMonthView(currentSemester);
+        } else {
+            viewType = viewArgs.split(" ")[0];
+            //viewSpecifier = viewArgs.split(" ")[1];
+
+            switch (viewType) {
+            case "month":
+                //TODO: month view
+                break;
+            case "week":
+                //TODO: week view
+                break;
+            case "day":
+                //TODO: day view
+                break;
+            default:
+                break;
+            }
+        }
+
+        return new CommandResult(output);
+    }
+
+    /**
+     * Display all months for the semester.
+     */
+    private String displayMonthView(Semester currentSemester) {
+        HashMap<LocalDate, Day> allDays = currentSemester.getDays();
+        LocalDate semesterStartDate = currentSemester.getStartDate();
+        LocalDate semesterEndDate = currentSemester.getEndDate();
+        int year = semesterStartDate.getYear();
+        LocalDate firstDayOfMonth = semesterStartDate.withDayOfMonth(1);
+        int spaces = firstDayOfMonth.getDayOfWeek().getValue();
+        int lastMonthOfSem = semesterEndDate.getMonthValue();
+        StringBuilder sb = new StringBuilder();
+
+        String[] months = {"", "January", "February", "March", "April", "May", "June",
+            "July", "August", "September", "October", "November", "December"};
+
+        int[] days = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
+
+        for (int m = 1; m <= lastMonthOfSem; m++) {
+            // Set number of days in February to 29 if it is a leap year.
+            if ((((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0)) && m == 2) {
+                days[m] = 29;
+            }
+
+            // Print calendar header.
+            sb.append("          " + months[m] + " " + year + "\n");
+            sb.append("_____________________________________\n");
+            sb.append("   Sun  Mon Tue   Wed Thu   Fri  Sat\n");
+
+            // Print spaces required for the start of a month.
+            spaces = (days[m - 1] + spaces) % 7;
+            for (int i = 0; i < spaces; i++) {
+                sb.append("     ");
+            }
+            // Print the days in the month.
+            for (int i = 1; i <= days[m]; i++) {
+                sb.append(String.format("  %3d", i));
+                if (((i + spaces) % 7 == 0)) {
+                    Day tempDay = allDays.get(LocalDate.of(year, m, i));
+                    String weekType = "";
+                    if (tempDay != null) {
+                        weekType = tempDay.getType();
+                    }
+                    sb.append("   | " + weekType + "\n");
+                }
+                if (i == days[m]) {
+                    LocalDate tempDate = LocalDate.of(year, m, i);
+                    Day tempDay = allDays.get(tempDate);
+                    String weekType = "";
+                    int extraSpaces = 6 - (tempDate.getDayOfWeek().getValue() % 7);
+                    for (int j = 0; j < extraSpaces; j++) {
+                        sb.append("     ");
+                    }
+                    if (tempDay != null) {
+                        weekType = tempDay.getType();
+                    }
+                    sb.append("   | " + weekType + "\n");
+                }
+            }
+
+            sb.append("\n");
+        }
+
+        return sb.toString();
+    }
+
+}

src/planmysem/parser/Parser.java

@@ -23,6 +23,7 @@
 import planmysem.commands.HelpCommand;
 import planmysem.commands.IncorrectCommand;
 import planmysem.commands.ListCommand;
+import planmysem.commands.ViewCommand;
 import planmysem.common.Utils;
 import planmysem.data.exception.IllegalValueException;
 
@@ -95,6 +96,10 @@ public Command parseCommand(String userInput) {
         case ListCommand.COMMAND_WORD_SHORT:
             return prepareList(arguments);
 
+        case ViewCommand.COMMAND_WORD:
+        case ViewCommand.COMMAND_WORD_SHORT:
+            return prepareView(arguments);
+
         case ClearCommand.COMMAND_WORD:
             return new ClearCommand();
 
@@ -344,31 +349,28 @@ private Command prepareList(String args) {
      * @param args full command args string
      * @return the prepared command
      */
-    //    private Command prepareView(String args) {
-    //
-    //        try {
-    //            final int targetIndex = parseArgsAsDisplayedIndex(args);
-    //            return new ViewCommand(targetIndex);
-    //        } catch (ParseException | NumberFormatException e) {
-    //            return new IncorrectCommand(String.format(MESSAGE_INVALID_COMMAND_FORMAT,
-    //                    ViewCommand.MESSAGE_USAGE));
-    //        }
-    //    }
+    private Command prepareView(String args) {
+        if (args == null || args.trim().isEmpty()) {
+            return new IncorrectCommand(String.format(MESSAGE_INVALID_COMMAND_FORMAT, ViewCommand.MESSAGE_USAGE));
+        }
 
-    /**
-     * Parses the given arguments string as a single index number.
-     *
-     * @param args arguments string to parse as index number
-     * @return the parsed index number
-     * @throws ParseException        if no region of the args string could be found for the index
-     * @throws NumberFormatException the args string region is not a valid number
-     */
-    private int parseArgsAsDisplayedIndex(String args) throws ParseException, NumberFormatException {
-        final Matcher matcher = PERSON_INDEX_ARGS_FORMAT.matcher(args.trim());
-        if (!matcher.matches()) {
-            throw new ParseException("Could not find index number to parse");
+        String[] viewArgs = args.split(" ");
+        if ("all".equals(viewArgs[1]) && viewArgs.length == 2) {
+            return new ViewCommand(viewArgs[1]);
+        } else if ("month".equals(viewArgs[1]) && viewArgs.length == 2) {
+            return new ViewCommand(viewArgs[1]);
+        } else if ("month".equals(viewArgs[1]) && viewArgs.length == 3) {
+            //TODO: ensure month arguments
+            return new ViewCommand(viewArgs[1] + " " + viewArgs[2]);
+        } else if ("week".equals(viewArgs[1]) && viewArgs.length == 3) {
+            //TODO: ensure week arguments
+            return new ViewCommand(viewArgs[1] + " " + viewArgs[2]);
+        } else if ("day".equals(viewArgs[1]) && viewArgs.length == 3) {
+            //TODO: ensure day arguments
+            return new ViewCommand(viewArgs[1] + " " + viewArgs[2]);
         }
-        return Integer.parseInt(matcher.group("targetIndex"));
+
+        return new IncorrectCommand(String.format(MESSAGE_INVALID_COMMAND_FORMAT, ViewCommand.MESSAGE_USAGE));
     }
 
     /**

src/planmysem/ui/DarkTheme.css

@@ -10,7 +10,7 @@
 .text-area {
     -fx-background-color: black;
     -fx-control-inner-background: black;
-    -fx-font-family: "Segoe UI Semibold";
+    -fx-font-family: "Lucida Console";
     -fx-font-size: 10pt;
     -fx-padding: 5 5 5 5;
 }