IfElseChainSolution4.kt

fun main() {
    if (pickupSelected && dropSelected) return gotoNextPage()

    if (selectedTab === "PICKUP_POINT") {
        verifyPickup(pickupSelected)
    }

    if (selectedTab === "DROP_POINT") {
        verifyDropOff(dropSelected)
    }
}

private fun verifyPickup(pickupSelected: Boolean) {
    if (pickupSelected) {
        goToDrop();
    } else {
        toast("Please select pickup location")
    }
}

private fun verifyDropOff(dropSelected: Boolean) {
    if (dropSelected) {
        goToPickup();
    } else {
        toast("Please select drop location")
    }
}