/* 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.
 */

#include <Payload.h>   
   
   Payload::Payload() {
        stringLength = 0;
        payloadUnitCount = 0;
        payload = NULL;
    }
    
    Payload::Payload(const uint8_t *tokenString, uint8_t string_ength) {
        // initialize private data members
        stringLength = string_ength;
        payloadUnitCount = 0;
        payload = NULL;
        
        int index = 0;
        while( index!=stringLength) {
            int len=tokenString[index];
            index=index+1+len;
            payloadUnitCount++;               
        }
    
        UnitPayload *obj = new UnitPayload[payloadUnitCount];
        int i=0;
        int c=0;
        int j,k;

        while(i<payloadUnitCount)
        {   
            obj[i].length=tokenString[c];
            obj[i].id=tokenString[c+1];

            obj[i].data = new uint8_t[obj[i].length];
            for(j=c+2,k=0;(j<(c+obj[i].length+1))&&(k<obj[i].length-1);j++,k++)
            {
                obj[i].data[k]=tokenString[j];
        
            }           
            
            c=c+obj[i].length+1;
            i++;

        }
        payload = obj;
    }

uint8_t Payload::getPayloadUnitCount() {
    return payloadUnitCount;
}

uint8_t Payload::getIDAtIndex(int index) {
    return payload[index].get_id();
}

uint8_t Payload::getLengthAtIndex(int index) {
    return payload[index].get_length();
}

uint8_t* Payload::getDataAtIndex(int index) {
    return payload[index].get_data();
}

int8_t Payload::getInt8AtIndex(int index) {
    uint8_t* str = payload[index].get_data();
    int8_t value = (int8_t)str[0];
    return value;
}

uint16_t Payload::getUint16AtIndex(int index) {
    uint16_t* str = (uint16_t*)payload[index].get_data();
    uint16_t value = str[0];
    return value;    
    }
    
uint8_t* Payload::getSerializedAdDataAtIndex(int index) {
    uint8_t length = payload[index].get_length();
    uint8_t* data = payload[index].get_data();
    uint8_t id = payload[index].get_id();
    uint8_t *serializedAdData = new uint8_t[length];
    
    serializedAdData[0] = id;
    for(int i=0; i<length-1; i++) {
            serializedAdData[i+1] = data[i];
        }
    return serializedAdData;
    }    