From a348e8732aa03e75b632983949469e2fcbc5a849 Mon Sep 17 00:00:00 2001
From: euxane
Date: Sun, 24 Nov 2024 17:17:02 +0100
Subject: file: add module

---
 file.nim | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 file.nim

diff --git a/file.nim b/file.nim
new file mode 100644
index 0000000..83c2560
--- /dev/null
+++ b/file.nim
@@ -0,0 +1,35 @@
+# tickwatch
+# Author: Euxane TRAN-GIRARD
+# Licence: EUPL-1.2
+
+import std/paths
+import std/strutils
+
+
+type
+  FileValueMonitor = ref object
+    path: Path
+
+  FileChangeMonitor = ref object
+    path: Path
+    lastValue: int
+
+proc readValue(path: Path): int =
+  readFile(path.string).strip.parseInt
+
+proc initFileValueMonitor*(path: Path): FileValueMonitor =
+  FileValueMonitor(path: path)
+
+proc readValue*(mon: FileValueMonitor): int =
+  mon.path.readValue()
+
+proc initFileChangeMonitor*(path: Path): FileChangeMonitor =
+  FileChangeMonitor(
+    path: path,
+    lastValue: path.readValue(),
+  )
+
+proc readValue*(mon: FileChangeMonitor): int =
+  let newValue = mon.path.readValue()
+  result = abs(mon.lastValue - newValue)
+  mon.lastValue = newValue
-- 
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