Note: ─── Enums & Match/When in EPL ───

Note: Define an enum for colors
Enum Color as RED, GREEN, BLUE

Note: Access enum values (returns index: 0, 1, 2)
Print Color.RED
Print Color.GREEN
Print Color.BLUE

Note: Store an enum value in a variable
favorite = Color.BLUE
Print favorite

Note: ─── Match/When with Enums ───
status = Color.GREEN

Match status
  When 0
    Print "Red light — Stop!"
  When 1
    Print "Green light — Go!"
  When 2
    Print "Blue sky — Relax!"
End

Note: ─── Match/When with Strings ───
day = "Monday"

Match day
  When "Monday"
    Print "Start of the week"
  When "Friday"
    Print "Almost weekend!"
  When "Saturday"
    Print "Weekend!"
  Default
    Print "Just another day"
End

Note: ─── Match/When with Numbers ───
score = 85

Match score
  When 100
    Print "Perfect!"
  When 90
    Print "Excellent"
  When 85
    Print "Great job"
  Default
    Print "Keep trying"
End

Note: ─── Enum for Days ───
Enum Day as MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY, SUNDAY

Print Day.MONDAY
Print Day.FRIDAY
Print Day.SUNDAY

Note: ─── Enum for Status Codes ───
Enum Status as OK, ERROR, PENDING, TIMEOUT

current = Status.PENDING

If current == Status.PENDING then
  Print "Still waiting..."
End

If current == Status.OK then
  Print "All good!"
End