From 1140db3b88bb70cbcab044efa729707bd5a442f6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?louiz=E2=80=99?= <louiz@louiz.org>
Date: Wed, 31 Aug 2016 01:58:13 +0200
Subject: Add parse_datetime

---
 louloulibs/utils/time.cpp | 11 +++++++++++
 louloulibs/utils/time.hpp |  1 +
 tests/utils.cpp           |  8 ++++++++
 3 files changed, 20 insertions(+)

diff --git a/louloulibs/utils/time.cpp b/louloulibs/utils/time.cpp
index b85d764..305b2ad 100644
--- a/louloulibs/utils/time.cpp
+++ b/louloulibs/utils/time.cpp
@@ -1,4 +1,5 @@
 #include <utils/time.hpp>
+#include <time.h>
 
 namespace utils
 {
@@ -10,4 +11,14 @@ std::string to_string(const std::time_t& timestamp)
     return "";
   return {std::begin(date_buf), std::end(date_buf) - 1};
 }
+
+std::time_t parse_datetime(const std::string& stamp)
+{
+  struct tm tm;
+  if (!::strptime(stamp.data(), "%FT%T%z", &tm))
+    return -1;
+  auto res = ::timegm(&tm);
+  return res;
+}
+
 }
\ No newline at end of file
diff --git a/louloulibs/utils/time.hpp b/louloulibs/utils/time.hpp
index dff1250..c71cd9c 100644
--- a/louloulibs/utils/time.hpp
+++ b/louloulibs/utils/time.hpp
@@ -6,4 +6,5 @@
 namespace utils
 {
 std::string to_string(const std::time_t& timestamp);
+std::time_t parse_datetime(const std::string& stamp);
 }
\ No newline at end of file
diff --git a/tests/utils.cpp b/tests/utils.cpp
index abe7ef7..084a048 100644
--- a/tests/utils.cpp
+++ b/tests/utils.cpp
@@ -121,3 +121,11 @@ TEST_CASE("time_to_string")
   CHECK(utils::to_string(stamp).size() == result.size());
   CHECK(utils::to_string(0) == "1970-01-01T00:00:00Z");
 }
+
+TEST_CASE("parse_datetime")
+{
+  const auto time = utils::parse_datetime("1970-01-01T00:00:00Z");
+  CHECK(time == 0);
+  CHECK(utils::parse_datetime("2016-08-29T14:29:28Z") == 1472480968);
+  CHECK(utils::parse_datetime("blah") == -1);
+}
\ No newline at end of file
-- 
cgit v1.2.3