From d051fffe25ba76c8a62b00289cf0f86e37a83f58 Mon Sep 17 00:00:00 2001
From: AnotherTest <ali.mpfard@gmail.com>
Date: Thu, 7 May 2020 09:11:07 +0430
Subject: [PATCH] LibCore: Add a primitive comparison function to DateTime

This should go away when we get the ability to parse strings to
DateTime's.
---
 Libraries/LibCore/DateTime.cpp | 6 ++++++
 Libraries/LibCore/DateTime.h   | 4 ++++
 2 files changed, 10 insertions(+)

diff --git a/Libraries/LibCore/DateTime.cpp b/Libraries/LibCore/DateTime.cpp
index e6011951eaf..2b6704f1e87 100644
--- a/Libraries/LibCore/DateTime.cpp
+++ b/Libraries/LibCore/DateTime.cpp
@@ -280,6 +280,12 @@ String DateTime::to_string(const String& format) const
     return builder.build();
 }
 
+bool DateTime::is_before(const String& other) const
+{
+    auto now_string = String::format("%04d%02d%02d%02d%02d%02dZ", year(), month(), weekday(), hour(), minute(), second());
+    return __builtin_strcasecmp(now_string.characters(), other.characters()) < 0;
+}
+
 const LogStream& operator<<(const LogStream& stream, const DateTime& value)
 {
     return stream << value.to_string();
diff --git a/Libraries/LibCore/DateTime.h b/Libraries/LibCore/DateTime.h
index 4409b42b07b..f1f1f833edd 100644
--- a/Libraries/LibCore/DateTime.h
+++ b/Libraries/LibCore/DateTime.h
@@ -54,6 +54,10 @@ public:
     static DateTime now();
     static DateTime from_timestamp(time_t);
 
+    // FIXME: This should be replaced with a proper comparison
+    //        operator when we get the equivalent of strptime
+    bool is_before(const String&) const;
+
 private:
     time_t m_timestamp { 0 };
     unsigned m_year { 0 };