Initial iBeacon rotator

components/ibeacon_rotator/ibeacon_rotator.h

@@ -0,0 +1,66 @@
+#pragma once
+
+#include "esphome/components/esp32_ble/ble.h"
+#include "esphome/core/component.h"
+
+#ifdef USE_ESP32
+
+#include <array>
+#include <string>
+#include <vector>
+
+#include <esp_gap_ble_api.h>
+
+namespace esphome::ibeacon_rotator {
+
+using namespace esp32_ble;
+
+class IBeaconRotator : public Component {
+ public:
+  explicit IBeaconRotator(const std::array<uint8_t, 10> &prefix) : prefix_(prefix) {}
+
+  void setup() override;
+  void loop() override;
+  void dump_config() override;
+  float get_setup_priority() const override { return setup_priority::AFTER_BLUETOOTH; }
+
+  void set_broadcast_length(uint32_t ms) { this->broadcast_length_ms_ = ms; }
+  void set_min_interval(uint32_t ms) { this->min_interval_ = static_cast<uint16_t>(ms); }
+  void set_max_interval(uint32_t ms) { this->max_interval_ = static_cast<uint16_t>(ms); }
+  void set_major(uint16_t v) { this->major_ = v; }
+  void set_minor(uint16_t v) { this->minor_ = v; }
+  void set_measured_power(int8_t v) { this->measured_power_ = v; }
+
+  void add_mac(const uint8_t mac[6]);
+  bool add_mac_from_string(const std::string &mac_str);
+
+  void gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param);
+
+ protected:
+  struct Entry {
+    uint8_t mac[6];
+    uint32_t expires_at_ms;
+  };
+
+  void apply_current_payload_();
+  void stop_advertising_();
+  void evict_expired_();
+
+  std::array<uint8_t, 10> prefix_;
+  std::vector<Entry> entries_;
+  size_t cursor_{0};
+  uint32_t last_rotate_ms_{0};
+  bool advertising_{false};
+
+  uint32_t broadcast_length_ms_{30000};
+  uint16_t min_interval_{100};
+  uint16_t max_interval_{100};
+  uint16_t major_{0};
+  uint16_t minor_{0};
+  int8_t measured_power_{-59};
+  esp_ble_adv_params_t ble_adv_params_{};
+};
+
+}  // namespace esphome::ibeacon_rotator
+
+#endif  // USE_ESP32