External Screen working

ecran_externe/display_api.h

@@ -0,0 +1,54 @@
+#pragma once
+#include "esphome.h"
+#include "esphome/components/web_server_base/web_server_base.h"
+#include "esphome/components/json/json_util.h"
+#include <functional>
+#include <string>
+
+// Callback signature: void(device_id, cloud_alert, defrost_mode)
+using DisplayUpdateCallback = std::function<void(const std::string &device_id, bool cloud_alert, bool defrost_mode)>;
+
+static DisplayUpdateCallback g_display_callback = nullptr;
+
+class DisplayApiHandler : public esphome::web_server_idf::AsyncWebHandler {
+ public:
+  bool canHandle(esphome::web_server_idf::AsyncWebServerRequest *request) const override {
+    return request->url_to() == "/api/display";
+  }
+
+  void handleRequest(esphome::web_server_idf::AsyncWebServerRequest *request) override {
+    request->send(200, "application/json", "{\"status\":\"ok\"}");
+  }
+
+  void handleBody(esphome::web_server_idf::AsyncWebServerRequest *request, uint8_t *data, size_t len, size_t index, size_t total) override {
+    std::string body((char *)data, len);
+
+    esphome::json::parse_json(body, [](JsonObject root) -> bool {
+      std::string device_id = root["device_id"] | "unknown";
+      bool cloud_alert = root["cloud_alert"] | false;
+      bool defrost_mode = root["defrost_mode"] | false;
+
+      ESP_LOGI("custom_api", "Received update for %s (Alert: %d, Defrost: %d)",
+               device_id.c_str(), cloud_alert, defrost_mode);
+
+      // Execute the callback passed from YAML
+      if (g_display_callback != nullptr) {
+        g_display_callback(device_id, cloud_alert, defrost_mode);
+      }
+
+      return true;
+    });
+
+    request->send(200, "application/json", "{\"status\":\"ok\"}");
+  }
+};
+
+inline void setup_display_api(DisplayUpdateCallback callback) {
+  g_display_callback = callback;
+  if (esphome::web_server_base::global_web_server_base != nullptr) {
+    esphome::web_server_base::global_web_server_base->add_handler(new DisplayApiHandler());
+    ESP_LOGI("custom_api", "Successfully registered /api/display POST handler");
+  } else {
+    ESP_LOGE("custom_api", "Failed to register endpoint: global_web_server_base is null");
+  }
+}