You are going to use an enum we previously worked with $($Month$)$ to implement a CalendarView struct that conforms to the tableDataSource protocol shown in class. You will implement the methods of the protocol and check to make sure that they work correctly. Then you will also implement the CustomStringConvertible protocol so that the CalendarView will print an accurate view of a specific Month$$s calendar to the Console.

Directions:

Creating a CalendarView Struct

Add a new Swift File to the program named CalendarView

Create a new Type in the file named CalendarView that implements the tableDataSource protocol.

Add the following instance properties to the CalendarView:

var currentMonth: Month

$-$represents the month being used to print the calendar $($defined in Month.Swift$).$ A Month has methods for returning its number of days and other pertinent data.

var leap: Bool

$-$represents whether or not this is a leap year. Really only relevant when printing february.

var startingDay: Weekday

$-$the starting day for the month. A Weekday is an enum that has a raw Int value. Knowing this is important to $$drawing$$ the Calendar correctly.

Add the required properties and methods for the protocol conformance for tableDataSource

$-$numberOfColumns should return $7$

$-$numberOfRows should return $6($we will need this many to accommodate a realistic looking calendar$)$

$-$label$($forColumn column: Int$)->$ String should return a label for each day of the week $($using the first $3$ letters of each day, E$.$G$.$Sun$$ or $$Fri$).$ See the following page for an example of output.

$-$func itemFor$($row: Int, column: Int$)->$ String should return the nu$0$merical date $($E$.$G$.20$ or $31)$ for the given row and column. Note: there is an arithmetic formula that will correctly calculate the date, knowing the starting position in Week $0($which corresponds to a Weekday$$s raw value$).$ If the given row and column does not fall within the Month$$s range of dates $($either before the $1$st or after the last day$)$ this should return $$XX$$

Make a few CalendarView objects and check the methods you$$ve defined to ensure they are working correctly. You may want to look at an actual Monthly calendar for this $($double checking your work$)$

Printing a CalendarView:

Now we want to be able to print the CalendarViews. Add protocol conformance for the CustomStringConvertible protocol:

First list it at the top of the CalendarView Struct, next to the tableDataSource listing, separated by a comma.

Now define a public, computed String variable named description. This variable should return a labeled Calendar $$drawn$$ in ASCII characters. This should utilize both the label and the itemFor methods you$$ve already defined for tableDataSource Conformance.

Example of what the code should produce is pictured.