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/*****************************************************************************

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 *

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 * $Id$

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 *

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 ****************************************************************************/

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#include <iostream>

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#include <iomanip>

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using namespace std;

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#include "CommandUpload.h"

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#include "coe_datatypes.h"

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#include "byteorder.h"

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/*****************************************************************************/

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CommandUpload::CommandUpload():

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    Command("upload", "Read an Sdo entry from a slave.")

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{

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}

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/*****************************************************************************/

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string CommandUpload::helpString() const

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{

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    stringstream str;

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    str << getName() << " [OPTIONS] <INDEX> <SUBINDEX>" << endl

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        << endl

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        << getBriefDescription() << endl

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        << endl

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        << "This command requires a single slave to be selected." << endl

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    	<< endl

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        << "The data type of the Sdo entry is taken from the Sdo" << endl

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        << "dictionary by default. It can be overridden with the" << endl

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        << "--type option. If the slave does not support the Sdo" << endl

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        << "information service or the Sdo is not in the dictionary," << endl

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        << "the --type option is mandatory."  << endl

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        << endl

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        << "These are the valid Sdo entry data types:" << endl

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        << "  int8, int16, int32, uint8, uint16, uint32, string." << endl

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        << endl

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        << "Arguments:" << endl

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        << "  INDEX    is the Sdo index and must be an unsigned" << endl

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        << "           16 bit number." << endl

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        << "  SUBINDEX is the Sdo entry subindex and must be an" << endl

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        << "           unsigned 8 bit number." << endl

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        << endl

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        << "Command-specific options:" << endl

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        << "  --alias    -a <alias>" << endl

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        << "  --position -p <pos>    Slave selection. See the help of" << endl

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        << "                         the 'slaves' command." << endl

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        << "  --type     -t <type>   Sdo entry data type (see above)." << endl

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        << endl

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        << numericInfo();

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    return str.str();

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}

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/****************************************************************************/

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void CommandUpload::execute(MasterDevice &m, const StringVector &args)

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{

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    SlaveList slaves;

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    stringstream err, strIndex, strSubIndex;

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    int sval;

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    ec_ioctl_slave_sdo_upload_t data;

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    unsigned int uval;

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    const CoEDataType *dataType = NULL;

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    if (args.size() != 2) {

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        err << "'" << getName() << "' takes two arguments!";

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        throwInvalidUsageException(err);

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    }

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    strIndex << args[0];

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    strIndex

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        >> resetiosflags(ios::basefield) // guess base from prefix

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        >> data.sdo_index;

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    if (strIndex.fail()) {

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        err << "Invalid Sdo index '" << args[0] << "'!";

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        throwInvalidUsageException(err);

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    }

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    strSubIndex << args[1];

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    strSubIndex

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        >> resetiosflags(ios::basefield) // guess base from prefix

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        >> uval;

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    if (strSubIndex.fail() || uval > 0xff) {

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        err << "Invalid Sdo subindex '" << args[1] << "'!";

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        throwInvalidUsageException(err);

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    }

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    data.sdo_entry_subindex = uval;

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    m.open(MasterDevice::Read);

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    slaves = selectedSlaves(m);

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    if (slaves.size() != 1) {

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        throwSingleSlaveRequired(slaves.size());

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    }

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    data.slave_position = slaves.front().position;

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    if (!getDataType().empty()) { // data type specified

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        if (!(dataType = findDataType(getDataType()))) {

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            err << "Invalid data type '" << getDataType() << "'!";

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            throwInvalidUsageException(err);

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        }

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    } else { // no data type specified: fetch from dictionary

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        ec_ioctl_slave_sdo_entry_t entry;

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        try {

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            m.getSdoEntry(&entry, data.slave_position,

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                    data.sdo_index, data.sdo_entry_subindex);

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        } catch (MasterDeviceException &e) {

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            err << "Failed to determine Sdo entry data type. "

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                << "Please specify --type.";

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            throwCommandException(err);

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        }

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        if (!(dataType = findDataType(entry.data_type))) {

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            err << "Pdo entry has unknown data type 0x"

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                << hex << setfill('0') << setw(4) << entry.data_type << "!"

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                << " Please specify --type.";

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            throwCommandException(err);

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        }

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    }

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    if (dataType->byteSize) {

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        data.target_size = dataType->byteSize;

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    } else {

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        data.target_size = DefaultBufferSize;

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    }

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    data.target = new uint8_t[data.target_size + 1];

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	try {

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		m.sdoUpload(&data);

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	} catch (MasterDeviceException &e) {

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        delete [] data.target;

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        throw e;

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    }

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    m.close();

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    if (dataType->byteSize && data.data_size != dataType->byteSize) {

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        err << "Data type mismatch. Expected " << dataType->name

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            << " with " << dataType->byteSize << " byte, but got "

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            << data.data_size << " byte.";

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        throwCommandException(err);

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    }

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    cout << setfill('0');

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    switch (dataType->coeCode) {

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        case 0x0002: // int8

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            sval = *(int8_t *) data.target;

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            cout << sval << " 0x" << hex << setw(2) << sval << endl;

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            break;

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        case 0x0003: // int16

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            sval = le16tocpu(*(int16_t *) data.target);

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            cout << sval << " 0x" << hex << setw(4) << sval << endl;

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            break;

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        case 0x0004: // int32

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            sval = le32tocpu(*(int32_t *) data.target);

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            cout << sval << " 0x" << hex << setw(8) << sval << endl;

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            break;

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        case 0x0005: // uint8

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            uval = (unsigned int) *(uint8_t *) data.target;

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            cout << uval << " 0x" << hex << setw(2) << uval << endl;

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            break;

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        case 0x0006: // uint16

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            uval = le16tocpu(*(uint16_t *) data.target);

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            cout << uval << " 0x" << hex << setw(4) << uval << endl;

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            break;

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        case 0x0007: // uint32

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            uval = le32tocpu(*(uint32_t *) data.target);

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            cout << uval << " 0x" << hex << setw(8) << uval << endl;

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            break;

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        case 0x0009: // string

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            cout << string((const char *) data.target, data.data_size)

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                << endl;

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            break;

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        default:

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            printRawData(data.target, data.data_size); // FIXME

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            break;

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    }

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    delete [] data.target;

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}

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/****************************************************************************/

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void CommandUpload::printRawData(

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		const uint8_t *data,

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		unsigned int size

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		)

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{

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    cout << hex << setfill('0');

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    while (size--) {

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        cout << "0x" << setw(2) << (unsigned int) *data++;

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        if (size)

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            cout << " ";

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    }

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    cout << endl;

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}

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/*****************************************************************************/