gpio configuration via web interface

Gpio.h

@@ -5,7 +5,7 @@
 
 enum class PinRole
 {
-    Undefined,
+    Disabled,
     InputLock,
     InputUnlock,
     InputUnlatch,
@@ -16,7 +16,7 @@ enum class PinRole
 struct PinEntry
 {
     uint8_t pin = 0;
-    PinRole role = PinRole::Undefined;
+    PinRole role = PinRole::Disabled;
 };
 
 class Gpio
@@ -29,9 +29,24 @@ public:
     void savePinConfiguration(const std::vector<PinEntry>& pinConfiguration);
 
     const std::vector<uint8_t>& availablePins() const;
+    const std::vector<PinEntry>& pinConfiguration() const;
+
+    String getRoleDescription(PinRole role) const;
+    void getConfigurationText(String& text, const std::vector<PinEntry>& pinConfiguration) const;
+
+    const std::vector<PinRole>& getAllRoles() const;
 
 private:
     const std::vector<uint8_t> _availablePins = { 2, 4, 5, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 32, 33 };
+    const std::vector<PinRole> _allRoles =
+        {
+            PinRole::Disabled,
+            PinRole::InputLock,
+            PinRole::InputUnlock,
+            PinRole::InputUnlatch,
+            PinRole::OutputHighLocked,
+            PinRole::OutputHighUnlocked
+        };
 
     std::vector<PinEntry> _pinConfiguration;
     static const uint _debounceTime;