Eid Mubarak

eid.kt

import java.time.LocalDate
import java.time.chrono.HijrahDate
import java.time.format.DateTimeFormatter
import java.time.temporal.TemporalAdjusters

fun main() {
    when (isLastRamadhan()) {
        true -> {
            println("it's felt so fast we passed this month, but happy...")
            message.forEach { repeat(35) { loop ->
                it.find { secret -> secret.index == loop }
                    .let { result -> if (result != null)
                        print(type[result.type].toChar())
                    else print(type[0].toChar())
                    }
            }
                println()
            }
        }
    }
}

data class Secret(val index: Int, val type: Int)

val type = listOf(9617, 9608, 9600, 9604)
val message = listOf(
    listOf(),
    listOf(Secret(11, 1), Secret(12, 2), Secret(17, 3), Secret(23, 1)),
    listOf(
        Secret(11, 1), Secret(12, 3), Secret(13, 3),
        Secret(14, 3), Secret(17, 3), Secret(20, 3),
        Secret(21, 3), Secret(22, 3), Secret(23, 1)
    ),
    listOf(
        Secret(11, 1), Secret(17, 1), Secret(20, 1),
        Secret(23, 1)
    ),
    listOf(
        Secret(11, 2), Secret(12, 2), Secret(13, 2),
        Secret(14, 2), Secret(17, 2), Secret(20, 2),
        Secret(21, 2), Secret(22, 2), Secret(23, 2)
    ),
    listOf(), listOf(),
    listOf(
        Secret(2, 1), Secret(3, 3), Secret(5, 3),
        Secret(6, 1), Secret(12, 1), Secret(30, 1)
    ),
    listOf(
        Secret(2, 1), Secret(4, 1), Secret(6, 1),
        Secret(8, 3), Secret(10, 3), Secret(12, 1),
        Secret(13, 3), Secret(14, 3), Secret(16, 3),
        Secret(17, 3), Secret(18, 3), Secret(21, 3),
        Secret(22, 3), Secret(23, 3), Secret(25, 3),
        Secret(26, 3), Secret(27, 3), Secret(30, 1),
        Secret(31, 3), Secret(32, 1)
    ),
    listOf(
        Secret(2, 1), Secret(6, 1), Secret(8, 1),
        Secret(10, 1), Secret(12, 1), Secret(14, 1),
        Secret(16, 1), Secret(18, 1), Secret(21, 1),
        Secret(25, 1), Secret(27, 1), Secret(30, 1),
        Secret(31, 1), Secret(32, 3)
    ),
    listOf(
        Secret(2, 2), Secret(6, 2), Secret(8, 2),
        Secret(9, 2), Secret(10, 2), Secret(12, 2),
        Secret(13, 2), Secret(14, 2), Secret(16, 2),
        Secret(17, 2), Secret(18, 2), Secret(19, 2),
        Secret(21, 2), Secret(25, 2), Secret(26, 2),
        Secret(27, 2), Secret(28, 2), Secret(30, 2),
        Secret(32, 2)
    ), listOf()
)

fun isLastRamadhan(): Boolean =
    LocalDate.from(
        HijrahDate.now().with(
            TemporalAdjusters.lastDayOfMonth()
        )
    ).toString() == LocalDate.now().format(
        DateTimeFormatter.ofPattern("yyyy-MM-dd")
    )