//
// Created by xemon on 28.11.22.
//

#include <memory.h>
#include "AtGsmSms_Utils.h"
#include "AsciiStringParsingUtils.h"
#include "stdbool.h"
#include "AtCmdCommonProtected.h"
#include "SimpleIndelibleMalloc.h"
#include "SmsEncoderDecoder.h"

static AtCommandResult AtGsmSms_UtilsSendOnePdu(tAtCmd *env, uint8_t bufSmsId, char *pduBody) {

    uint8_t offset = 0;

    uint8_t serviceCenterPrefixSize = 0;

    uint8_t pduServiceCenterSize = iAsciiStringParseHexByte((pduBody + offset * 2));
    offset += 1;
    serviceCenterPrefixSize += 1;

    if (pduServiceCenterSize) {
        uint8_t pduServiceCenterAddressType = iAsciiStringParseHexByte((pduBody + offset * 2));
        offset += 1;
        serviceCenterPrefixSize += 1;

//        ServiceCenterAddress
        offset += pduServiceCenterSize;
        serviceCenterPrefixSize += pduServiceCenterSize;
    }

    //Flags
    offset += 1; //add pdu flags byte
    //Message Reference
    offset += 1; //add  MR byte


    //Destination Address Length
    uint8_t pduAddressLen = iAsciiStringParseHexByte((pduBody + offset * 2));
    offset += 1;
    //Destination Address Type
    offset += 1; // byte

    //Destination Address
    pduAddressLen = pduAddressLen / 2 + pduAddressLen % 2;
    offset += pduAddressLen;


    //Protocol Identifier
    offset += 1; //add PID byte

    //Data Coding Schema
    offset += 1; //add encoding byte

    if (false) {
        //Validity Period
        offset += 1;
    }

    //User Data Length
    uint8_t pduDataLen = iAsciiStringParseHexByte((pduBody + offset * 2));


    uint8_t pduFullLen = offset + pduDataLen;
    uint8_t pduLen = pduFullLen - pduServiceCenterSize;

    pduFullLen += 1;//add pduDataLen byte to fullLen

    AT_INOKR(AtGsmSms_DeleteById(env, bufSmsId));
    AT_INOKR(AtGsmSms_WriteNewPduSms(env, pduBody, pduFullLen * 2, pduLen));
    AT_INOKR(AtGsmSms_SendById(env, bufSmsId));

    return AT_OK;
}

AtCommandResult AtGsmSms_BildPduData(char *pduPacket, uint16_t inpLenMes, char *pduDecodData, uint16_t *pduDecodLen) {
    uint8_t SMS_BUFFER[1024 * 4];
    tSimpleIndelibleMalloc simpleMalloc;
    tSmsPdu smsPdu;

    SimpleIndelibleMalloc_Init(&simpleMalloc, SMS_BUFFER, sizeof(SMS_BUFFER));
    SimpleIndelibleMalloc_Clear(&simpleMalloc);
    tMemAllocInterface memInterface = SimpleIndelibleMalloc_GetInterface(&simpleMalloc);
    tSmsPdu_Init(&smsPdu, &memInterface);
    tSMS_Struct res;

    res = SmsPdu_Decode(&smsPdu, pduPacket, inpLenMes);

    *pduDecodLen = res.UDL * 2;
    if (*pduDecodLen) {
        memcpy(pduDecodData, res.UD, *pduDecodLen);
        return AT_OK;
    } else {
        return AT_ERROR;
    }
}

AtCommandResult AtGsmSms_UtilsSendPduData(
        tAtCmd *env,

        char *servNumber,
        uint8_t servNumberSize,

        char *phoneNumber,
        uint8_t phoneNumberSize,

        uint8_t *binaryData,
        uint8_t binaryDataSize
) {
    uint8_t SMS_BUFFER[1024 * 4];
    tSimpleIndelibleMalloc simpleMalloc;
    tSmsPdu smsPdu;

    SimpleIndelibleMalloc_Init(&simpleMalloc, SMS_BUFFER, sizeof(SMS_BUFFER));
    SimpleIndelibleMalloc_Clear(&simpleMalloc);
    tMemAllocInterface memInterface = SimpleIndelibleMalloc_GetInterface(&simpleMalloc);
    tSmsPdu_Init(&smsPdu, &memInterface);

    if(AtGsmSms_SetMode(env, AT_GSM_SMS_MODE_PDU) != AT_OK){
        return 0;
    }
    if(AtGsmSms_SetServiceCenter(env, servNumber, servNumberSize) != AT_OK){
        return 0;
    }
    AT_INOKR(AtGsmSms_SetMode(env, AT_GSM_SMS_MODE_PDU));
    AT_INOKR(AtGsmSms_SetServiceCenter(env, servNumber, servNumberSize));

    char nullPhone[phoneNumberSize + 1];
    memcpy(nullPhone, phoneNumber, phoneNumberSize);
    nullPhone[phoneNumberSize] = 0;

    char hexDataString[1 + (binaryDataSize * 2)];
    size_t hexDataLen = 0;
    vAsciiStringAddBytesAsHex(hexDataString, &hexDataLen, binaryData, binaryDataSize);
    hexDataString[hexDataLen] = 0;

    tPDUS *pdus = SmsPdu_Encode(&smsPdu, nullPhone, hexDataString, NULL, BIT8_HEX);

    for (unsigned int i = 0; i < pdus->count; i++) {

        AtCommandResult result = AtGsmSms_UtilsSendOnePdu(env, 1, pdus->PDU[i]);
        if (result != AT_OK) {
            return result;
        }
    }

    return AT_OK;
}


AtCommandResult AtGsmSms_UtilsSendPduText(
        tAtCmd *env,
        char *servNumber,
        uint8_t servNumberSize,

        char *phoneNumber,
        uint8_t phoneNumberSize,

        char *textString,
        uint8_t textStringSize
) {
    uint8_t SMS_BUFFER[1024 * 4];
    tSimpleIndelibleMalloc simpleMalloc;
    tSmsPdu smsPdu;

    SimpleIndelibleMalloc_Init(&simpleMalloc, SMS_BUFFER, sizeof(SMS_BUFFER));
    SimpleIndelibleMalloc_Clear(&simpleMalloc);
    tMemAllocInterface memInterface = SimpleIndelibleMalloc_GetInterface(&simpleMalloc);
    tSmsPdu_Init(&smsPdu, &memInterface);

    char nullPhone[phoneNumberSize + 1];
    memcpy(nullPhone, phoneNumber, phoneNumberSize);
    nullPhone[phoneNumberSize] = 0;

    char nullText[textStringSize + 1];
    memcpy(nullText, textString, textStringSize);
    nullText[textStringSize] = 0;

    AT_INOKR(AtGsmSms_SetMode(env, AT_GSM_SMS_MODE_PDU));
    AT_INOKR(AtGsmSms_SetServiceCenter(env, servNumber, servNumberSize));

    tPDUS *pdus = SmsPdu_Encode(&smsPdu, nullPhone, nullText, NULL, UCS2);

    for (unsigned int i = 0; i < pdus->count; i++) {

        AtCommandResult result = AtGsmSms_UtilsSendOnePdu(env, 1, pdus->PDU[i]);
        if (result != AT_OK) {
            return result;
        }

    }

    return AT_OK;
}