Introduces "icons" library

components/nspanel_ha_blueprint/icons.h

@@ -0,0 +1,32 @@
+// icons.h
+#pragma once
+
+#include <cstdint>
+#include <cstring>  // For strncpy and strcmp
+#include <vector>
+
+namespace nspanel_ha_blueprint {
+
+    struct Icon {
+        uint8_t page_id;           // Page ID, placed logically before the component
+        char component[15];        // Component name (max 14 chars + null terminator)
+        char last_icon_code[5];    // UTF-8 code (4 bytes + null terminator)
+        uint16_t last_icon_color;  // Color value
+        bool visible;              // Visibility of the icon
+
+        // Constructor with default values
+        Icon(uint8_t pid, const char* comp, const char* code = "\xEF\xBF\xBF", uint16_t color = UINT16_MAX, bool vis = true)
+            : page_id(pid), last_icon_color(color), visible(vis) {
+            strncpy(const_cast<char*>(component), comp, 14);  // Use const_cast to bypass const for initialization
+            const_cast<char*>(component)[14] = '\0';          // Ensure null termination safely
+            strncpy(last_icon_code, code, 4);
+            last_icon_code[4] = '\0';
+        }
+
+        void updateIcon(const char* code, uint16_t color, bool vis);
+    };
+
+    extern std::vector<Icon> icons;  // Global list of icons
+
+    Icon* findIcon(uint8_t page_id, const char* component);
+}