AoC 2024 | Day 3 | Part 2

fun partTwo() {
    println("[2024] Day three, part two...")
    val input = input()
    val regex = "mul\\(\\d+,\\d+\\)|do\\(\\)|don't\\(\\)".toRegex()
    val validMulsDosAndDonts = regex.findAll(input)
        .map { it.value }
        .toList()

    val enabledMuls = mutableListOf<String>()
    var mulsEnabled = true
    validMulsDosAndDonts.forEach { command ->
        if (command == "do()") {
            mulsEnabled = true
            return@forEach
        }
        if (command == "don't()") {
            mulsEnabled = false
            return@forEach
        }
        if (mulsEnabled) {
            enabledMuls.add(command)
        }
    }

    val mappedMuls = enabledMuls.map {
        val values = it
            .substringAfter("(")
            .substringBeforeLast(")")
            .split(",")
            .map { it.toLong() }

        values[0] to values[1]
    }

    val result = mappedMuls.sumOf { it.first * it.second }
    println("Result: $result")
}