secant-android-wallet/spackle-lib/src/commonMain/kotlin/co/electriccoin/zcash/spackle/model/Progress.kt

package co.electriccoin.zcash.spackle.model

data class Progress(val current: Index, val last: Index) {
    init {
        require(last.value > 0) { "last must be > 0 but was $last" }
        require(last.value >= current.value) { "last ($last) must be >= current ($current)" }
    }

    companion object {
        val EMPTY = Progress(Index(0), Index(1))
    }
}