/*
 * NimBLERemoteCharacteristic.h
 *
 *  Created: on Jan 27 2020
 *      Author H2zero
 *
 * Originally:
 *
 * BLERemoteCharacteristic.h
 *
 *  Created on: Jul 8, 2017
 *      Author: kolban
 */

#ifndef NIMBLE_CPP_REMOTE_CHARACTERISTIC_H_
#define NIMBLE_CPP_REMOTE_CHARACTERISTIC_H_

#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED) && defined(CONFIG_BT_NIMBLE_ROLE_CENTRAL)

# include "NimBLERemoteValueAttribute.h"
# include <vector>
# include <functional>

class NimBLERemoteService;
class NimBLERemoteDescriptor;

/**
 * @brief A model of a remote BLE characteristic.
 */
class NimBLERemoteCharacteristic : public NimBLERemoteValueAttribute {
  public:
    std::string                toString() const;
    const NimBLERemoteService* getRemoteService() const;
    void                       deleteDescriptors() const;
    size_t                     deleteDescriptor(const NimBLEUUID& uuid) const;
    bool                       canBroadcast() const;
    bool                       canRead() const;
    bool                       canWriteNoResponse() const;
    bool                       canWrite() const;
    bool                       canNotify() const;
    bool                       canIndicate() const;
    bool                       canWriteSigned() const;
    bool                       hasExtendedProps() const;
    NimBLEClient*              getClient() const override;

    typedef std::function<void(NimBLERemoteCharacteristic* pBLERemoteCharacteristic, uint8_t* pData, size_t length, bool isNotify)> notify_callback;

    bool subscribe(bool notifications = true, const notify_callback notifyCallback = nullptr, bool response = true) const;
    bool unsubscribe(bool response = true) const;

    std::vector<NimBLERemoteDescriptor*>::iterator begin() const;
    std::vector<NimBLERemoteDescriptor*>::iterator end() const;
    NimBLERemoteDescriptor*                        getDescriptor(const NimBLEUUID& uuid) const;
    const std::vector<NimBLERemoteDescriptor*>&    getDescriptors(bool refresh = false) const;

  private:
    friend class NimBLEClient;
    friend class NimBLERemoteService;

    NimBLERemoteCharacteristic(const NimBLERemoteService* pRemoteService, const ble_gatt_chr* chr);
    ~NimBLERemoteCharacteristic();

    bool setNotify(uint16_t val, notify_callback notifyCallback = nullptr, bool response = true) const;
    bool retrieveDescriptors(const NimBLEUUID* uuidFilter = nullptr) const;

    static int descriptorDiscCB(
        uint16_t conn_handle, const ble_gatt_error* error, uint16_t chr_val_handle, const ble_gatt_dsc* dsc, void* arg);

    const NimBLERemoteService*                   m_pRemoteService{nullptr};
    uint8_t                                      m_properties{0};
    mutable notify_callback                      m_notifyCallback{nullptr};
    mutable std::vector<NimBLERemoteDescriptor*> m_vDescriptors{};

}; // NimBLERemoteCharacteristic

#endif /* CONFIG_BT_ENABLED && CONFIG_BT_NIMBLE_ROLE_CENTRAL */
#endif /* NIMBLE_CPP_REMOTE_CHARACTERISTIC_H_ */