Many sub templates to inherit from!

src/TinyGsmTime.tpp

@@ -0,0 +1,61 @@
+/**
+ * @file       TinyGsmTime.tpp
+ * @author     Volodymyr Shymanskyy
+ * @license    LGPL-3.0
+ * @copyright  Copyright (c) 2016 Volodymyr Shymanskyy
+ * @date       Nov 2016
+ */
+
+#ifndef SRC_TINYGSMTIME_H_
+#define SRC_TINYGSMTIME_H_
+
+#include "TinyGsmCommon.h"
+
+#define TINY_GSM_MODEM_HAS_TIME
+
+enum TinyGSMDateTimeFormat { DATE_FULL = 0, DATE_TIME = 1, DATE_DATE = 2 };
+
+template <class modemType>
+class TinyGsmTime {
+ public:
+  /*
+   * Time functions
+   */
+  String getGSMDateTime(TinyGSMDateTimeFormat format) {
+    return thisModem().getGSMDateTimeImpl(format);
+  }
+
+  /*
+   * CRTP Helper
+   */
+ protected:
+  inline const modemType& thisModem() const {
+    return static_cast<const modemType&>(*this);
+  }
+  inline modemType& thisModem() {
+    return static_cast<modemType&>(*this);
+  }
+
+  /*
+   * Time functions
+   */
+ protected:
+  String getGSMDateTimeImpl(TinyGSMDateTimeFormat format) {
+    thisModem().sendAT(GF("+CCLK?"));
+    if (thisModem().waitResponse(2000L, GF("+CCLK: \"")) != 1) { return ""; }
+
+    String res;
+
+    switch (format) {
+      case DATE_FULL: res = thisModem().stream.readStringUntil('"'); break;
+      case DATE_TIME:
+        thisModem().streamSkipUntil(',');
+        res = thisModem().stream.readStringUntil('"');
+        break;
+      case DATE_DATE: res = thisModem().stream.readStringUntil(','); break;
+    }
+    return res;
+  }
+};
+
+#endif  // SRC_TINYGSMTIME_H_