Props to prop no plural

src/PropData.h

@@ -0,0 +1,90 @@
+/*
+  Name:		PropData.h
+  Created: 29/10/2019 09:20:31
+  Author:  Marie Faure <dev at faure dot systems>
+  Editor:  https://github.com/fauresystems
+  License: MIT License (c) Marie Faure <dev at faure dot systems>
+
+  Variable wrapper for connected prop.
+*/
+#ifndef PROPSDATA_H
+#define PROPSDATA_H
+
+#if defined(ARDUINO) && ARDUINO >= 100
+#include "arduino.h"
+#else
+#include "WProgram.h"
+#endif
+
+#include <inttypes.h>
+#include <WString.h>
+
+class PropData
+{
+  public:
+    virtual String fetch() = 0;
+    virtual String fetchChange() = 0;
+};
+
+class PropDataDecimal : public PropData
+{
+  public:
+    PropDataDecimal(const char *, uint8_t digits = 2, double precision = 0.1, double initial = 0);
+    String fetch();
+    String fetchChange();
+    void setValue(const double);
+    double value() const;
+  private:
+    const char *_id;
+    double _current;
+    double _previous;
+    double _precision;
+    uint8_t _digits;
+};
+
+class PropDataInteger : public PropData
+{
+  public:
+    PropDataInteger(const char *, double precision = 0.1, long initial = 0);
+    String fetch();
+    String fetchChange();
+    void setValue(const long);
+    long value() const;
+  private:
+    const char *_id;
+    long _current;
+    long _previous;
+    double _precision;
+};
+
+class PropDataLogical : public PropData
+{
+  public:
+    PropDataLogical(const char *, const char *trueval = NULL, const char *falseval = NULL, bool initial = false);
+    String fetch();
+    String fetchChange();
+    void setValue(const bool);
+    bool value() const;
+  private:
+    const char *_id;
+    bool _current;
+    bool _previous;
+    const char *_trueString;
+    const char *_falseString;
+};
+
+class PropDataText : public PropData
+{
+  public:
+    PropDataText(const char *);
+    String fetch();
+    String fetchChange();
+    void setValue(String);
+    String value() const;
+  private:
+    const char *_id;
+    String _current;
+    String _previous;
+};
+
+#endif