Add config and wifi

main/config.cpp

@@ -0,0 +1,33 @@
+#include "config.h"
+
+#include "sdkconfig.h"
+
+// esp-idf includes
+#include <esp_log.h>
+
+// 3rdparty lib includes
+#include <configmanager_priv.h>
+#include <fmt/core.h>
+#include <espwifistack.h>
+
+// local includes
+#include "configmanager_priv.h"
+
+using namespace std::chrono_literals;
+
+namespace {
+//constexpr const char * const TAG = "CONFIG";
+} // namespace
+
+std::string defaultHostname()
+{
+    if (const auto result = wifi_stack::get_default_mac_addr())
+        return fmt::format("bobby_{:02x}{:02x}{:02x}", result->at(3), result->at(4), result->at(5));
+    else
+        ESP_LOGE(TAG, "get_default_mac_addr() failed: %.*s", result.error().size(), result.error().data());
+    return "bobby";
+}
+
+ConfigManager<ConfigContainer> configs;
+
+INSTANTIATE_CONFIGMANAGER_TEMPLATES(ConfigContainer)