From 36671cb379e1683fcbf46c32ff58aa8154558f8e Mon Sep 17 00:00:00 2001
From: InsanusMokrassar <ovsyannikov.alexey95@gmail.com>
Date: Thu, 21 Mar 2024 17:34:22 +0600
Subject: [PATCH] potential fix of #107

---
 CHANGELOG.md                      |  2 ++
 src/commonMain/kotlin/Executes.kt | 22 ++++++++++++++++++++--
 2 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index f73fe21..fda6290 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## 2.3.0
 
+* `doWhile` now will guarantee that it will not call `doOnce` more than once for time
+
 ## 2.2.9
 
 * `Version`:
diff --git a/src/commonMain/kotlin/Executes.kt b/src/commonMain/kotlin/Executes.kt
index 35356b3..90a31ba 100644
--- a/src/commonMain/kotlin/Executes.kt
+++ b/src/commonMain/kotlin/Executes.kt
@@ -71,9 +71,18 @@ suspend inline fun <T> doOnceTz(
  * Will execute [block] while it will return true as a result of its calculation
  */
 suspend inline fun KronScheduler.doWhile(block: (DateTime) -> Boolean) {
+    var latest: DateTime? = null
     do {
         delay(1L)
-    } while (doOnce(block))
+        val result = doOnce {
+            if (latest != it) {
+                latest = it
+                block(it)
+            } else {
+                null
+            }
+        }
+    } while (result == null || result)
 }
 /**
  * Will execute [block] while it will return true as a result of its calculation
@@ -85,9 +94,18 @@ suspend inline fun KronScheduler.doWhileLocal(block: (DateTime) -> Boolean) = do
  * Will execute [block] while it will return true as a result of its calculation
  */
 suspend inline fun KronScheduler.doWhileTz(noinline block: suspend (DateTimeTz) -> Boolean) {
+    var latest: DateTimeTz? = null
     do {
         delay(1L)
-    } while (doOnceTz(block))
+        val result = doOnceTz {
+            if (latest != it) {
+                latest = it
+                block(it)
+            } else {
+                null
+            }
+        }
+    } while (result == null || result)
 }
 
 /**