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/* mbed Microcontroller Library
 * Copyright (c) 2006-2013 ARM Limited
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
*/

#ifndef __GATT_SERVICE_H__
#define __GATT_SERVICE_H__

#include "UUID.h"
#include "GattCharacteristic.h"

class GattService {
public:
    enum {
        UUID_ALERT_NOTIFICATION_SERVICE     = 0x1811,
        UUID_BATTERY_SERVICE                = 0x180F,
        UUID_BLOOD_PRESSURE_SERVICE         = 0x1810,
        UUID_CURRENT_TIME_SERVICE           = 0x1805,
        UUID_CYCLING_SPEED_AND_CADENCE      = 0x1816,
        UUID_DEVICE_INFORMATION_SERVICE     = 0x180A,
        UUID_ENVIRONMENTAL_SERVICE          = 0x181A,
        UUID_GLUCOSE_SERVICE                = 0x1808,
        UUID_HEALTH_THERMOMETER_SERVICE     = 0x1809,
        UUID_HEART_RATE_SERVICE             = 0x180D,
        UUID_HUMAN_INTERFACE_DEVICE_SERVICE = 0x1812,
        UUID_IMMEDIATE_ALERT_SERVICE        = 0x1802,
        UUID_LINK_LOSS_SERVICE              = 0x1803,
        UUID_NEXT_DST_CHANGE_SERVICE        = 0x1807,
        UUID_PHONE_ALERT_STATUS_SERVICE     = 0x180E,
        UUID_REFERENCE_TIME_UPDATE_SERVICE  = 0x1806,
        UUID_RUNNING_SPEED_AND_CADENCE      = 0x1814,
        UUID_SCAN_PARAMETERS_SERVICE        = 0x1813,
        UUID_TX_POWER_SERVICE               = 0x1804
    };

public:
    /**
     *  @brief  Creates a new GattService using the specified 16-bit
     *          UUID, value length, and properties.
     *
     *  @note   The UUID value must be unique and is normally >1.
     *
     *  @param[in]  uuid
     *              The UUID to use for this service.
     *  @param[in]  characteristics
     *              A pointer to an array of characteristics to be included within this service.
     *  @param[in]  numCharacteristics
     *              The number of characteristics.
     */
    GattService(const UUID &uuid, GattCharacteristic *characteristics[], unsigned numCharacteristics) :
        _primaryServiceID(uuid),
        _characteristicCount(numCharacteristics),
        _characteristics(characteristics),
        _handle(0) {
        /* empty */
    }

    /**
     * Get this service's UUID.
     *
     * @return A reference to the service's UUID.
     */
    const UUID &getUUID(void) const {
        return _primaryServiceID;
    }

    /**
     * Get handle of the service declaration attribute in the ATT table.
     *
     * @return The service's handle.
     */
    uint16_t getHandle(void) const {
        return _handle;
    }

    /**
     * Get the total number of characteristics within this service.
     *
     * @return The total number of characteristics within this service.
     */
    uint8_t getCharacteristicCount(void) const {
        return _characteristicCount;
    }

    /**
     * Set the handle of the service declaration attribute in the ATT table.
     *
     * @param[in] handle
     *              The service's handle.
     */
    void setHandle(uint16_t handle) {
        _handle = handle;
    }

    /**
     * Get this service's characteristic at a specific index.
     *
     * @param[in] index
     *              The index of the characteristic.
     *
     * @return A pointer to the characterisitic at index @p index.
     */
    GattCharacteristic *getCharacteristic(uint8_t index) {
        if (index >= _characteristicCount) {
            return NULL;
        }

        return _characteristics[index];
    }

private:
    /**
     * This service's UUID.
     */
    UUID                 _primaryServiceID;
    /**
     * Total number of characteristics within this service.
     */
    uint8_t              _characteristicCount;
    /**
     * An array with pointers to the characteristics added to this service.
     */
    GattCharacteristic **_characteristics;
    /**
     * Handle of the service declaration attribute in the ATT table.
     *
     * @note This handle is generally assigned by the underlying BLE stack when the
     *       service is added to the ATT table.
     */
    uint16_t             _handle;
};

#endif /* ifndef __GATT_SERVICE_H__ */