Moved generic value classes to separate module

module-common/common.gradle.kts

@@ -0,0 +1,5 @@
+plugins {
+    id("twomartens.kotlin")
+    id("twomartens.java")
+    kotlin("kapt")
+}

module-common/src/main/kotlin/de/twomartens/timetable/types/Hour.kt

@@ -0,0 +1,16 @@
+package de.twomartens.timetable.types
+
+@JvmInline
+value class Hour private constructor(val value: Int) {
+    init {
+        require(value in 0..23) {
+            "Hour must be between 0 and 23"
+        }
+    }
+
+    companion object {
+        fun of(hour: Int): Hour {
+            return Hour(hour)
+        }
+    }
+}

module-common/src/main/kotlin/de/twomartens/timetable/types/HourAtDay.kt

@@ -0,0 +1,39 @@
+package de.twomartens.timetable.types
+
+import java.time.LocalDate
+import java.time.LocalDateTime
+import java.time.temporal.ChronoUnit
+
+@JvmInline
+value class HourAtDay private constructor(private val value: LocalDateTime) {
+    init {
+        require(value.minute == 0 && value.second == 0 && value.nano == 0) {
+            "DateTime must only include an hour and the date."
+        }
+    }
+
+    val date: LocalDate
+        get() {
+            return value.toLocalDate()
+        }
+
+    val hour: Hour
+        get() {
+            return Hour.of(value.hour)
+        }
+
+    val dateTime: LocalDateTime
+        get() {
+            return value
+        }
+
+    companion object {
+        fun of(dateTime: LocalDateTime): HourAtDay {
+            return HourAtDay(dateTime.truncatedTo(ChronoUnit.HOURS))
+        }
+
+        fun of(hour: Hour, date: LocalDate): HourAtDay {
+            return HourAtDay(date.atTime(hour.value, 0))
+        }
+    }
+}

module-common/src/main/kotlin/de/twomartens/timetable/types/NonEmptyString.kt

@@ -0,0 +1,10 @@
+package de.twomartens.timetable.types
+
+@JvmInline
+value class NonEmptyString(val name: String) {
+    init {
+        require(name.isNotBlank()) {
+            "Name must not be blank"
+        }
+    }
+}

module-common/src/main/kotlin/de/twomartens/timetable/types/PositiveInteger.kt

@@ -0,0 +1,10 @@
+package de.twomartens.timetable.types
+
+@JvmInline
+value class PositiveInteger(val value: Int) {
+    init {
+        require(value > 0) {
+            "Value must be positive integer"
+        }
+    }
+}