basic of display management. Backend to register and give image for the device. front end to manage displays etc.

2026-03-15 11:07:09 -04:00
parent 46dfe82568
commit baa0a8b1ba
14 changed files with 712 additions and 2 deletions
--- a/Provider/main/api/devices/register.cpp
+++ b/Provider/main/api/devices/register.cpp
@@ -0,0 +1,77 @@
+// POST /api/devices/register — Register a new device by MAC
+// Body: {"mac": "AA:BB:CC:DD:EE:FF"}
+
+#include "cJSON.h"
+#include "esp_http_server.h"
+#include "esp_log.h"
+
+#include "types.hpp"
+#include "device.hpp"
+
+internal const char *kTagDeviceRegister = "API_DEV_REG";
+
+internal esp_err_t api_devices_register_handler(httpd_req_t *req)
+{
+  httpd_resp_set_type(req, "application/json");
+  httpd_resp_set_hdr(req, "Access-Control-Allow-Origin", "*");
+
+  char buf[128];
+  int received = httpd_req_recv(req, buf, sizeof(buf) - 1);
+  if (received <= 0)
+  {
+    httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Empty body");
+    return ESP_FAIL;
+  }
+  buf[received] = '\0';
+
+  cJSON *body = cJSON_Parse(buf);
+  if (!body)
+  {
+    httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Invalid JSON");
+    return ESP_FAIL;
+  }
+
+  cJSON *mac_item = cJSON_GetObjectItem(body, "mac");
+  if (!cJSON_IsString(mac_item) || strlen(mac_item->valuestring) == 0)
+  {
+    cJSON_Delete(body);
+    httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Missing 'mac'");
+    return ESP_FAIL;
+  }
+
+  bool was_new = false;
+  device_t *dev = register_device(mac_item->valuestring, &was_new);
+  cJSON_Delete(body);
+
+  if (!dev)
+  {
+    httpd_resp_send_err(req, HTTPD_500_INTERNAL_SERVER_ERROR, "Device limit reached");
+    return ESP_FAIL;
+  }
+
+  cJSON *resp = cJSON_CreateObject();
+  if (was_new)
+  {
+    cJSON_AddStringToObject(resp, "status", "ok");
+    ESP_LOGI(kTagDeviceRegister, "Registered new device: %s", dev->mac);
+  }
+  else
+  {
+    cJSON_AddStringToObject(resp, "status", "already_registered");
+  }
+  cJSON_AddStringToObject(resp, "mac", dev->mac);
+
+  const char *json = cJSON_PrintUnformatted(resp);
+  httpd_resp_sendstr(req, json);
+
+  free((void *)json);
+  cJSON_Delete(resp);
+
+  return ESP_OK;
+}
+
+internal const httpd_uri_t api_devices_register_uri = {
+    .uri = "/api/devices/register",
+    .method = HTTP_POST,
+    .handler = api_devices_register_handler,
+    .user_ctx = NULL};