files replacements

src/commonMain/kotlin/KronScheduler.kt

@@ -0,0 +1,28 @@
+package dev.inmo.krontab
+
+import korlibs.time.DateTime
+
+/**
+ * This interface was created for abstraction of [next] operation. Currently, there is only
+ * [dev.inmo.krontab.internal.CronDateTimeScheduler] realisation of this interface inside of this library,
+ * but you it is possible to create your own realisation of this interface for scheduling, for example, depending of
+ * users activity or something like this
+ *
+ * @see dev.inmo.krontab.internal.CronDateTimeScheduler
+ */
+interface KronScheduler {
+
+    /**
+     * @return Next [DateTime] when some action must be triggered according to settings of this instance
+     *
+     * @see dev.inmo.krontab.internal.CronDateTimeScheduler.next
+     */
+    suspend fun next(relatively: DateTime = DateTime.now()): DateTime?
+
+    companion object
+}
+
+suspend fun KronScheduler.nextOrRelative(relatively: DateTime = DateTime.now()): DateTime = next(relatively) ?: getAnyNext(relatively)
+suspend fun KronScheduler.nextOrNow(): DateTime = DateTime.now().let {
+    next(it) ?: getAnyNext(it)
+}