Move esp32_ble_server to its own component (#1898)

esphome/components/esp32_ble_server/ble_service.h

@@ -0,0 +1,81 @@
+#pragma once
+
+#include "ble_characteristic.h"
+#include "esphome/components/esp32_ble/ble_uuid.h"
+
+#ifdef ARDUINO_ARCH_ESP32
+
+#include <esp_gap_ble_api.h>
+#include <esp_gatt_defs.h>
+#include <esp_gattc_api.h>
+#include <esp_gatts_api.h>
+#include <esp_bt_defs.h>
+
+namespace esphome {
+namespace esp32_ble_server {
+
+class BLEServer;
+
+using namespace esp32_ble;
+
+class BLEService {
+ public:
+  BLEService(ESPBTUUID uuid, uint16_t num_handles, uint8_t inst_id);
+  ~BLEService();
+  BLECharacteristic *get_characteristic(ESPBTUUID uuid);
+  BLECharacteristic *get_characteristic(uint16_t uuid);
+
+  BLECharacteristic *create_characteristic(const std::string &uuid, esp_gatt_char_prop_t properties);
+  BLECharacteristic *create_characteristic(uint16_t uuid, esp_gatt_char_prop_t properties);
+  BLECharacteristic *create_characteristic(ESPBTUUID uuid, esp_gatt_char_prop_t properties);
+
+  ESPBTUUID get_uuid() { return this->uuid_; }
+  BLECharacteristic *get_last_created_characteristic() { return this->last_created_characteristic_; }
+  uint16_t get_handle() { return this->handle_; }
+
+  BLEServer *get_server() { return this->server_; }
+
+  void do_create(BLEServer *server);
+  void gatts_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_t gatts_if, esp_ble_gatts_cb_param_t *param);
+
+  void start();
+  void stop();
+
+  bool is_created();
+  bool is_failed();
+
+  bool is_running() { return this->running_state_ == RUNNING; }
+  bool is_starting() { return this->running_state_ == STARTING; }
+
+ protected:
+  std::vector<BLECharacteristic *> characteristics_;
+  BLECharacteristic *last_created_characteristic_{nullptr};
+  uint32_t created_characteristic_count_{0};
+  BLEServer *server_;
+  ESPBTUUID uuid_;
+  uint16_t num_handles_;
+  uint16_t handle_{0xFFFF};
+  uint8_t inst_id_;
+
+  bool do_create_characteristics_();
+
+  enum InitState : uint8_t {
+    FAILED = 0x00,
+    INIT,
+    CREATING,
+    CREATING_DEPENDENTS,
+    CREATED,
+  } init_state_{INIT};
+
+  enum RunningState : uint8_t {
+    STARTING,
+    RUNNING,
+    STOPPING,
+    STOPPED,
+  } running_state_{STOPPED};
+};
+
+}  // namespace esp32_ble_server
+}  // namespace esphome
+
+#endif