Rewrite state manager, clean up states, fixup typos - todo test state display

components/UVCStream/UVCStream/UVCStream.cpp

@@ -31,6 +31,9 @@ static esp_err_t UVCStreamHelpers::camera_start_cb(uvc_format_t format, int widt
   cameraHandler->setCameraResolution(frame_size);
   cameraHandler->resetCamera(0);
 
+  SystemEvent event = {EventSource::STREAM, StreamState_e::Stream_ON};
+  xQueueSend(eventQueue, &event, 10);
+
   return ESP_OK;
 }
 
@@ -43,7 +46,8 @@ static void UVCStreamHelpers::camera_stop_cb(void *cb_ctx)
     s_fb.cam_fb_p = nullptr;
   }
 
-  ESP_LOGI(UVC_STREAM_TAG, "Camera Stop");
+  SystemEvent event = {EventSource::STREAM, StreamState_e::Stream_OFF};
+  xQueueSend(eventQueue, &event, 10);
 }
 
 static uvc_fb_t *UVCStreamHelpers::camera_fb_get_cb(void *cb_ctx)

components/UVCStream/UVCStream/UVCStream.hpp

@@ -4,13 +4,19 @@
 #include "esp_timer.h"
 #include "esp_camera.h"
 #include <CameraManager.hpp>
+#include <StateManager.hpp>
 #include "esp_log.h"
 #include "usb_device_uvc.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/queue.h"
 
 // we need access to the camera manager
 // in order to update the frame settings
 extern std::shared_ptr<CameraManager> cameraHandler;
 
+// we also need a way to inform the rest of the system of what's happening
+extern QueueHandle_t eventQueue;
+
 namespace UVCStreamHelpers
 {
   // TODO move the camera handling code to the camera manager and have the uvc maanger initialize it in wired mode