Add command for retrieving device serial number and MAC address

components/CommandManager/CommandManager/CommandManager.cpp

@@ -25,6 +25,7 @@ std::unordered_map<std::string, CommandType> commandTypeMap = {
     {"get_device_mode", CommandType::GET_DEVICE_MODE},
     {"set_led_duty_cycle", CommandType::SET_LED_DUTY_CYCLE},
   {"get_led_duty_cycle", CommandType::GET_LED_DUTY_CYCLE},
+  {"get_serial", CommandType::GET_SERIAL},
 };
 
 std::function<CommandResult()> CommandManager::createCommand(const CommandType type, std::string_view json) const
@@ -97,6 +98,9 @@ std::function<CommandResult()> CommandManager::createCommand(const CommandType t
   case CommandType::GET_LED_DUTY_CYCLE:
     return [this]
     { return getLEDDutyCycleCommand(this->registry); };
+  case CommandType::GET_SERIAL:
+    return [this]
+    { return getSerialNumberCommand(this->registry); };
   default:
     return nullptr;
   }

components/CommandManager/CommandManager/CommandManager.hpp

@@ -46,6 +46,7 @@ enum class CommandType
   GET_DEVICE_MODE,
   SET_LED_DUTY_CYCLE,
   GET_LED_DUTY_CYCLE,
+  GET_SERIAL,
 };
 
 class CommandManager

components/CommandManager/CommandManager/commands/device_commands.cpp

@@ -1,5 +1,7 @@
 #include "device_commands.hpp"
 #include "LEDManager.hpp"
+#include "esp_mac.h"
+#include <cstdio>
 
 // Implementation inspired by SummerSigh work, initial PR opened in openiris repo, adapted to this rewrite
 CommandResult setDeviceModeCommand(std::shared_ptr<DependencyRegistry> registry, std::string_view jsonPayload)
@@ -197,3 +199,23 @@ CommandResult getDeviceModeCommand(std::shared_ptr<DependencyRegistry> registry)
     auto result = std::format("{{ \"mode\": \"{}\", \"value\": {} }}", modeStr, static_cast<int>(currentMode));
     return CommandResult::getSuccessResult(result);
 }
+
+CommandResult getSerialNumberCommand(std::shared_ptr<DependencyRegistry> /*registry*/)
+{
+    // Read MAC for STA interface
+    uint8_t mac[6] = {0};
+    esp_read_mac(mac, ESP_MAC_WIFI_STA);
+
+    char serial_no_sep[13];
+    // Serial without separators (12 hex chars)
+    std::snprintf(serial_no_sep, sizeof(serial_no_sep), "%02X%02X%02X%02X%02X%02X",
+                  mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+
+    char mac_colon[18];
+    // MAC with colons
+    std::snprintf(mac_colon, sizeof(mac_colon), "%02X:%02X:%02X:%02X:%02X:%02X",
+                  mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+
+    auto result = std::format("{{ \"serial\": \"{}\", \"mac\": \"{}\" }}", serial_no_sep, mac_colon);
+    return CommandResult::getSuccessResult(result);
+}

components/CommandManager/CommandManager/commands/device_commands.hpp

@@ -22,4 +22,6 @@ CommandResult startStreamingCommand();
 
 CommandResult switchModeCommand(std::shared_ptr<DependencyRegistry> registry, std::string_view jsonPayload);
 
-CommandResult getDeviceModeCommand(std::shared_ptr<DependencyRegistry> registry);
+CommandResult getDeviceModeCommand(std::shared_ptr<DependencyRegistry> registry);
+
+CommandResult getSerialNumberCommand(std::shared_ptr<DependencyRegistry> registry);