added memory prompt [not tested]

common/src/main/kotlin/me/blueamethyst/bluecloud/common/terminal/prompts/MemoryPrompt.kt

@@ -0,0 +1,75 @@
+package me.blueamethyst.bluecloud.common.terminal.prompts
+
+import com.github.ajalt.mordant.terminal.ConversionResult
+import com.github.ajalt.mordant.terminal.Prompt
+import com.github.ajalt.mordant.terminal.Terminal
+import java.util.regex.Matcher
+import java.util.regex.Pattern
+
+class MemoryPrompt(
+ prompt: String,
+ terminal: Terminal,
+ default: Int?,
+ private val uppercaseDefault: Boolean = true,
+ showChoices: Boolean = true,
+ choices: Collection<Int> = emptySet(),
+ private val choiceStrings: List<String> = listOf("1024M", "4G"),
+ promptSuffix: String = ": ",
+ invalidChoiceMessage: String = "Invalid value, choose from "
+) : Prompt<Int>(
+ prompt,
+ terminal,
+ default,
+ false,
+ showChoices,
+ false,
+ choices,
+ promptSuffix,
+ invalidChoiceMessage
+) {
+
+ val ends = listOf("M", "G")
+
+ override fun convert(input: String): ConversionResult<Int> {
+ var validEnd: String? = null
+
+ if (input.isBlank()) {
+ return ConversionResult.Invalid("empty input")
+ }
+
+ ends.forEach {
+ if (it.endsWith(it)) {
+ validEnd = it
+ }
+ }
+
+ if (validEnd == null) {
+ return ConversionResult.Invalid("invalid end")
+ }
+
+ val split = splitStringAndNumber(input) ?: return ConversionResult.Invalid("invalid")
+ val final = calculate(split.second, split.first) ?: return ConversionResult.Invalid("invalid")
+
+ return ConversionResult.Valid(final)
+ }
+
+ private fun calculate(suffix: String, value: Int): Int? {
+ return when(suffix) {
+ "M" -> value
+ "G" -> value * 1024
+ else -> null
+ }
+ }
+
+ // https://stackoverflow.com/questions/3720012/regular-expression-to-split-string-and-number
+ private fun splitStringAndNumber(string: String?): Pair<Int, String>? {
+ val pattern = "(?<Numeric>[0-9]*)(?<Alpha>[a-zA-Z]*)"
+
+ val p: Pattern = Pattern.compile(pattern)
+ val m: Matcher = p.matcher(string)
+ if (m.find()) {
+ return Pair(m.group(1).toInt(), m.group(2).toString())
+ }
+ return null
+ }
+}