#include <RF24/RF24.h>
#include <boost/python.hpp>

namespace bp = boost::python;

// ******************** explicit wrappers **************************
// for methods which need it - mostly for buffer operations
// 

void throw_ba_exception(void)
{
    PyErr_SetString(PyExc_TypeError, "buf parameter must be bytes or bytearray");
    bp::throw_error_already_set();
}

char* get_bytes_or_bytearray_str(bp::object buf)
{
    PyObject* py_ba;
    py_ba = buf.ptr();
    if (PyByteArray_Check(py_ba)) {
        return PyByteArray_AsString(py_ba);
    } else if (PyBytes_Check(py_ba)) {
        return PyBytes_AsString(py_ba);
    } else {
        throw_ba_exception();
    }
    return NULL;
}

int get_bytes_or_bytearray_ln(bp::object buf)
{
    PyObject* py_ba;
    py_ba = buf.ptr();
    if (PyByteArray_Check(py_ba)) {
        return PyByteArray_Size(py_ba);
    } else if (PyBytes_Check(py_ba)) {
        return PyBytes_Size(py_ba);
    } else {
        throw_ba_exception();
    }
    return 0;
}

bp::object read_wrap(RF24& ref, int maxlen)
{
    char* buf = new char[maxlen + 1];
    ref.read(buf, maxlen);
    bp::object
    py_ba(bp::handle<>(PyByteArray_FromStringAndSize(buf, maxlen < ref.getPayloadSize() ? maxlen : ref.getPayloadSize())));
    delete[] buf;
    return py_ba;
}

bool write_wrap1(RF24& ref, bp::object buf)
{
    return ref.write(get_bytes_or_bytearray_str(buf), get_bytes_or_bytearray_ln(buf));
}

bool write_wrap2(RF24& ref, bp::object buf, const bool multicast)
{
    return ref.write(get_bytes_or_bytearray_str(buf), get_bytes_or_bytearray_ln(buf), multicast);
}

void writeAckPayload_wrap(RF24& ref, uint8_t pipe, bp::object buf)
{
    ref.writeAckPayload(pipe, get_bytes_or_bytearray_str(buf), get_bytes_or_bytearray_ln(buf));

}

bool writeFast_wrap1(RF24& ref, bp::object buf)
{
    return ref.writeFast(get_bytes_or_bytearray_str(buf), get_bytes_or_bytearray_ln(buf));
}

bool writeFast_wrap2(RF24& ref, bp::object buf, const bool multicast)
{
    return ref.writeFast(get_bytes_or_bytearray_str(buf), get_bytes_or_bytearray_ln(buf), multicast);
}

bool writeBlocking_wrap(RF24& ref, bp::object buf, uint32_t timeout)
{
    return ref.writeBlocking(get_bytes_or_bytearray_str(buf), get_bytes_or_bytearray_ln(buf), timeout);
}

void startFastWrite_wrap1(RF24& ref, bp::object buf, const bool multicast)
{
    ref.startFastWrite(get_bytes_or_bytearray_str(buf), get_bytes_or_bytearray_ln(buf), multicast);
}

void startFastWrite_wrap2(RF24& ref, bp::object buf, const bool multicast, bool startTx)
{
    ref.startFastWrite(get_bytes_or_bytearray_str(buf), get_bytes_or_bytearray_ln(buf), multicast, startTx);
}

void startWrite_wrap(RF24& ref, bp::object buf, const bool multicast)
{
    ref.startWrite(get_bytes_or_bytearray_str(buf), get_bytes_or_bytearray_ln(buf), multicast);
}

void openWritingPipe_wrap(RF24& ref, const bp::object address)
{
    ref.openWritingPipe((const uint8_t*) (get_bytes_or_bytearray_str(address)));
}

void openReadingPipe_wrap(RF24& ref, uint8_t number, const bp::object address)
{
    ref.openReadingPipe(number, (const uint8_t*) (get_bytes_or_bytearray_str(address)));
}

bp::tuple whatHappened_wrap(RF24& ref)
{
    bool tx_ok;
    bool tx_fail;
    bool tx_ready;

    ref.whatHappened(tx_ok, tx_fail, tx_ready);
    return bp::make_tuple(tx_ok, tx_fail, tx_ready);
}

bp::tuple available_wrap(RF24& ref)
{
    bool result;
    uint8_t pipe;

    result = ref.available(&pipe);
    return bp::make_tuple(result, pipe);
}

BOOST_PYTHON_MEMBER_FUNCTION_OVERLOADS(txStandBy_wrap1, RF24::txStandBy,
0, 2)
//BOOST_PYTHON_FUNCTION_OVERLOADS(txStandBy_wrap2, RF24::txStandBy, 1, 2)

// ******************** enums **************************
// from both RF24 and bcm2835
// 

BOOST_PYTHON_MODULE(RF24){

#ifdef BCM2835_H
bp::enum_< RPiGPIOPin>("RPiGPIOPin")
    .value("RPI_GPIO_P1_03", RPI_GPIO_P1_03)
    .value("RPI_GPIO_P1_05", RPI_GPIO_P1_05)
    .value("RPI_GPIO_P1_07", RPI_GPIO_P1_07)
    .value("RPI_GPIO_P1_08", RPI_GPIO_P1_08)
    .value("RPI_GPIO_P1_10", RPI_GPIO_P1_10)
    .value("RPI_GPIO_P1_11", RPI_GPIO_P1_11)
    .value("RPI_GPIO_P1_12", RPI_GPIO_P1_12)
    .value("RPI_GPIO_P1_13", RPI_GPIO_P1_13)
    .value("RPI_GPIO_P1_15", RPI_GPIO_P1_15)
    .value("RPI_GPIO_P1_16", RPI_GPIO_P1_16)
    .value("RPI_GPIO_P1_18", RPI_GPIO_P1_18)
    .value("RPI_GPIO_P1_19", RPI_GPIO_P1_19)
    .value("RPI_GPIO_P1_21", RPI_GPIO_P1_21)
    .value("RPI_GPIO_P1_22", RPI_GPIO_P1_22)
    .value("RPI_GPIO_P1_23", RPI_GPIO_P1_23)
    .value("RPI_GPIO_P1_24", RPI_GPIO_P1_24)
    .value("RPI_GPIO_P1_26", RPI_GPIO_P1_26)
    .value("RPI_V2_GPIO_P1_03", RPI_V2_GPIO_P1_03)
    .value("RPI_V2_GPIO_P1_05", RPI_V2_GPIO_P1_05)
    .value("RPI_V2_GPIO_P1_07", RPI_V2_GPIO_P1_07)
    .value("RPI_V2_GPIO_P1_08", RPI_V2_GPIO_P1_08)
    .value("RPI_V2_GPIO_P1_10", RPI_V2_GPIO_P1_10)
    .value("RPI_V2_GPIO_P1_11", RPI_V2_GPIO_P1_11)
    .value("RPI_V2_GPIO_P1_12", RPI_V2_GPIO_P1_12)
    .value("RPI_V2_GPIO_P1_13", RPI_V2_GPIO_P1_13)
    .value("RPI_V2_GPIO_P1_15", RPI_V2_GPIO_P1_15)
    .value("RPI_V2_GPIO_P1_16", RPI_V2_GPIO_P1_16)
    .value("RPI_V2_GPIO_P1_18", RPI_V2_GPIO_P1_18)
    .value("RPI_V2_GPIO_P1_19", RPI_V2_GPIO_P1_19)
    .value("RPI_V2_GPIO_P1_21", RPI_V2_GPIO_P1_21)
    .value("RPI_V2_GPIO_P1_22", RPI_V2_GPIO_P1_22)
    .value("RPI_V2_GPIO_P1_23", RPI_V2_GPIO_P1_23)
    .value("RPI_V2_GPIO_P1_24", RPI_V2_GPIO_P1_24)
    .value("RPI_V2_GPIO_P1_26", RPI_V2_GPIO_P1_26)
    .value("RPI_V2_GPIO_P5_03", RPI_V2_GPIO_P5_03)
    .value("RPI_V2_GPIO_P5_04", RPI_V2_GPIO_P5_04)
    .value("RPI_V2_GPIO_P5_05", RPI_V2_GPIO_P5_05)
    .value("RPI_V2_GPIO_P5_06", RPI_V2_GPIO_P5_06)
    .value("RPI_BPLUS_GPIO_J8_03", RPI_BPLUS_GPIO_J8_03)
    .value("RPI_BPLUS_GPIO_J8_05", RPI_BPLUS_GPIO_J8_05)
    .value("RPI_BPLUS_GPIO_J8_07", RPI_BPLUS_GPIO_J8_07)
    .value("RPI_BPLUS_GPIO_J8_08", RPI_BPLUS_GPIO_J8_08)
    .value("RPI_BPLUS_GPIO_J8_10", RPI_BPLUS_GPIO_J8_10)
    .value("RPI_BPLUS_GPIO_J8_11", RPI_BPLUS_GPIO_J8_11)
    .value("RPI_BPLUS_GPIO_J8_12", RPI_BPLUS_GPIO_J8_12)
    .value("RPI_BPLUS_GPIO_J8_13", RPI_BPLUS_GPIO_J8_13)
    .value("RPI_BPLUS_GPIO_J8_15", RPI_BPLUS_GPIO_J8_15)
    .value("RPI_BPLUS_GPIO_J8_16", RPI_BPLUS_GPIO_J8_16)
    .value("RPI_BPLUS_GPIO_J8_18", RPI_BPLUS_GPIO_J8_18)
    .value("RPI_BPLUS_GPIO_J8_19", RPI_BPLUS_GPIO_J8_19)
    .value("RPI_BPLUS_GPIO_J8_21", RPI_BPLUS_GPIO_J8_21)
    .value("RPI_BPLUS_GPIO_J8_22", RPI_BPLUS_GPIO_J8_22)
    .value("RPI_BPLUS_GPIO_J8_23", RPI_BPLUS_GPIO_J8_23)
    .value("RPI_BPLUS_GPIO_J8_24", RPI_BPLUS_GPIO_J8_24)
    .value("RPI_BPLUS_GPIO_J8_26", RPI_BPLUS_GPIO_J8_26)
    .value("RPI_BPLUS_GPIO_J8_29", RPI_BPLUS_GPIO_J8_29)
    .value("RPI_BPLUS_GPIO_J8_31", RPI_BPLUS_GPIO_J8_31)
    .value("RPI_BPLUS_GPIO_J8_32", RPI_BPLUS_GPIO_J8_32)
    .value("RPI_BPLUS_GPIO_J8_33", RPI_BPLUS_GPIO_J8_33)
    .value("RPI_BPLUS_GPIO_J8_35", RPI_BPLUS_GPIO_J8_35)
    .value("RPI_BPLUS_GPIO_J8_36", RPI_BPLUS_GPIO_J8_36)
    .value("RPI_BPLUS_GPIO_J8_37", RPI_BPLUS_GPIO_J8_37)
    .value("RPI_BPLUS_GPIO_J8_38", RPI_BPLUS_GPIO_J8_38)
    .value("RPI_BPLUS_GPIO_J8_40", RPI_BPLUS_GPIO_J8_40)
    .export_values()
    ;

bp::enum_< bcm2835SPIClockDivider>("bcm2835SPIClockDivider")
    .value("BCM2835_SPI_CLOCK_DIVIDER_65536", BCM2835_SPI_CLOCK_DIVIDER_65536)
    .value("BCM2835_SPI_CLOCK_DIVIDER_32768", BCM2835_SPI_CLOCK_DIVIDER_32768)
    .value("BCM2835_SPI_CLOCK_DIVIDER_16384", BCM2835_SPI_CLOCK_DIVIDER_16384)
    .value("BCM2835_SPI_CLOCK_DIVIDER_8192", BCM2835_SPI_CLOCK_DIVIDER_8192)
    .value("BCM2835_SPI_CLOCK_DIVIDER_4096", BCM2835_SPI_CLOCK_DIVIDER_4096)
    .value("BCM2835_SPI_CLOCK_DIVIDER_2048", BCM2835_SPI_CLOCK_DIVIDER_2048)
    .value("BCM2835_SPI_CLOCK_DIVIDER_1024", BCM2835_SPI_CLOCK_DIVIDER_1024)
    .value("BCM2835_SPI_CLOCK_DIVIDER_512", BCM2835_SPI_CLOCK_DIVIDER_512)
    .value("BCM2835_SPI_CLOCK_DIVIDER_256", BCM2835_SPI_CLOCK_DIVIDER_256)
    .value("BCM2835_SPI_CLOCK_DIVIDER_128", BCM2835_SPI_CLOCK_DIVIDER_128)
    .value("BCM2835_SPI_CLOCK_DIVIDER_64", BCM2835_SPI_CLOCK_DIVIDER_64)
    .value("BCM2835_SPI_CLOCK_DIVIDER_32", BCM2835_SPI_CLOCK_DIVIDER_32)
    .value("BCM2835_SPI_CLOCK_DIVIDER_16", BCM2835_SPI_CLOCK_DIVIDER_16)
    .value("BCM2835_SPI_CLOCK_DIVIDER_8", BCM2835_SPI_CLOCK_DIVIDER_8)
    .value("BCM2835_SPI_CLOCK_DIVIDER_4", BCM2835_SPI_CLOCK_DIVIDER_4)
    .value("BCM2835_SPI_CLOCK_DIVIDER_2", BCM2835_SPI_CLOCK_DIVIDER_2)
    .value("BCM2835_SPI_CLOCK_DIVIDER_1", BCM2835_SPI_CLOCK_DIVIDER_1)
    .export_values();


bp::enum_< bcm2835SPIChipSelect>("bcm2835SPIChipSelect")
    .value("BCM2835_SPI_CS0", BCM2835_SPI_CS0)
    .value("BCM2835_SPI_CS1", BCM2835_SPI_CS1)
    .value("BCM2835_SPI_CS2", BCM2835_SPI_CS2)
    .value("BCM2835_SPI_CS_NONE", BCM2835_SPI_CS_NONE)
    .export_values();

// exposing '#define's for SPI speed as this is needed for RF24 constructor
bp::scope().attr("BCM2835_SPI_SPEED_64MHZ") = BCM2835_SPI_SPEED_64MHZ;
bp::scope().attr("BCM2835_SPI_SPEED_32MHZ") = BCM2835_SPI_SPEED_32MHZ;
bp::scope().attr("BCM2835_SPI_SPEED_16MHZ") = BCM2835_SPI_SPEED_16MHZ;
bp::scope().attr("BCM2835_SPI_SPEED_8MHZ") = BCM2835_SPI_SPEED_8MHZ;
bp::scope().attr("BCM2835_SPI_SPEED_4MHZ") = BCM2835_SPI_SPEED_4MHZ;
bp::scope().attr("BCM2835_SPI_SPEED_2MHZ") = BCM2835_SPI_SPEED_2MHZ;
bp::scope().attr("BCM2835_SPI_SPEED_1MHZ") = BCM2835_SPI_SPEED_1MHZ;
bp::scope().attr("BCM2835_SPI_SPEED_512KHZ") = BCM2835_SPI_SPEED_512KHZ;
bp::scope().attr("BCM2835_SPI_SPEED_256KHZ") = BCM2835_SPI_SPEED_256KHZ;
bp::scope().attr("BCM2835_SPI_SPEED_128KHZ") = BCM2835_SPI_SPEED_128KHZ;
bp::scope().attr("BCM2835_SPI_SPEED_64KHZ") = BCM2835_SPI_SPEED_64KHZ;
bp::scope().attr("BCM2835_SPI_SPEED_32KHZ") = BCM2835_SPI_SPEED_32KHZ;
bp::scope().attr("BCM2835_SPI_SPEED_16KHZ") = BCM2835_SPI_SPEED_16KHZ;
bp::scope().attr("BCM2835_SPI_SPEED_8KHZ") = BCM2835_SPI_SPEED_8KHZ;
#endif  // BCM2835_H

        bp::enum_<rf24_crclength_e>("rf24_crclength_e").value("RF24_CRC_DISABLED", RF24_CRC_DISABLED).value("RF24_CRC_8", RF24_CRC_8).value(
                "RF24_CRC_16", RF24_CRC_16).export_values()
        ;

        bp::enum_< rf24_datarate_e>("rf24_datarate_e")
        .value("RF24_1MBPS", RF24_1MBPS)
        .value("RF24_2MBPS", RF24_2MBPS)
        .value("RF24_250KBPS", RF24_250KBPS)
        .export_values();

        bp::enum_< rf24_pa_dbm_e>("rf24_pa_dbm_e")
        .value("RF24_PA_MIN", RF24_PA_MIN)
        .value("RF24_PA_LOW", RF24_PA_LOW)
        .value("RF24_PA_HIGH", RF24_PA_HIGH)
        .value("RF24_PA_MAX", RF24_PA_MAX)
        .value("RF24_PA_ERROR", RF24_PA_ERROR)
        .export_values();

        // ******************** RF24 class  **************************
        //
        bp::class_< RF24 >( "RF24", bp::init< uint8_t, uint8_t >(( bp::arg("_cepin"), bp::arg("_cspin"))))
        #if defined (RF24_LINUX) && !defined (MRAA)
        .def( bp::init< uint8_t, uint8_t, uint32_t >(( bp::arg("_cepin"), bp::arg("_cspin"), bp::arg("spispeed") )) )
        #endif
        .def("available", (bool (::RF24::* )(  ))( &::RF24::available ))
        .def("available_pipe", &available_wrap )    // needed to rename this method as python does not allow such overloading
        .def("begin", &RF24::begin)
        .def("closeReadingPipe", &RF24::closeReadingPipe)
        .def("disableCRC", &RF24::disableCRC)
        .def("enableAckPayload", &RF24::enableAckPayload)
        .def("enableDynamicAck", &RF24::enableDynamicAck)
        .def("enableDynamicPayloads", &RF24::enableDynamicPayloads)
        .def("flush_tx", &RF24::flush_tx)
        .def("getCRCLength", &RF24::getCRCLength)
        .def("getDataRate", &RF24::getDataRate)
        .def("getDynamicPayloadSize", &RF24::getDynamicPayloadSize)
        .def("getPALevel", &RF24::getPALevel)
        .def("isAckPayloadAvailable", &RF24::isAckPayloadAvailable)
        .def("isPVariant", &RF24::isPVariant)
        .def("isValid", &RF24::isValid)
        .def("maskIRQ", &RF24::maskIRQ, ( bp::arg("tx_ok"), bp::arg("tx_fail"), bp::arg("rx_ready")))
        .def("openReadingPipe", &openReadingPipe_wrap, (bp::arg("number"), bp::arg("address")))
        .def("openReadingPipe", (void (::RF24::* )(::uint8_t,::uint64_t ))( &::RF24::openReadingPipe), (bp::arg("number"), bp::arg("address")))
        .def("openWritingPipe", &openWritingPipe_wrap, (bp::arg("address")))
        .def("openWritingPipe", (void (::RF24::* )(::uint64_t ))( &::RF24::openWritingPipe), ( bp::arg("address")))
        .def("powerDown", &RF24::powerDown)
        .def("powerUp", &RF24::powerUp)
        .def("printDetails", &RF24::printDetails)
        .def("reUseTX", &RF24::reUseTX)
        .def("read", &read_wrap, (bp::arg("maxlen")))
        .def("rxFifoFull", &RF24::rxFifoFull)
        .def("setAddressWidth", &RF24::setAddressWidth)
        .def("setAutoAck", (void (::RF24::* )( bool ))( &::RF24::setAutoAck ), ( bp::arg("enable")))
        .def("setAutoAck", (void (::RF24::* )(::uint8_t, bool ))( &::RF24::setAutoAck ), ( bp::arg("pipe"), bp::arg("enable")))
        .def("setCRCLength", &RF24::setCRCLength, ( bp::arg("length")))
        .def("setChannel", &RF24::setChannel, ( bp::arg("channel")))
        .def("setDataRate", &RF24::setDataRate, ( bp::arg("speed")))
        .def("setPALevel", &RF24::setPALevel, ( bp::arg("level")))
        .def("setRetries", &RF24::setRetries, (bp::arg("delay"), bp::arg("count")))
        .def("startFastWrite", &startFastWrite_wrap1, ( bp::arg("buf"), bp::arg("len"), bp::arg("multicast")))
        .def("startFastWrite", &startFastWrite_wrap2, ( bp::arg("buf"), bp::arg("len"), bp::arg("multicast"), bp::arg("startTx")))
        .def("startListening", &RF24::startListening)
        .def("startWrite", &startWrite_wrap, ( bp::arg("buf"), bp::arg("len"), bp::arg("multicast")))
        .def("stopListening", &RF24::stopListening)
        .def("testCarrier", &RF24::testCarrier)
        .def("testRPD", &RF24::testRPD)
        .def("txStandBy", (bool (::RF24::* )(::uint32_t, bool))(&RF24::txStandBy), txStandBy_wrap1( bp::args("timeout", "startTx")))
        .def("whatHappened", &whatHappened_wrap)
        .def("write", &write_wrap1, ( bp::arg("buf")))
        .def("write", &write_wrap2, ( bp::arg("buf"), bp::arg("multicast")))
        .def("writeAckPayload", writeAckPayload_wrap, ( bp::arg("pipe"), bp::arg("buf")))
        .def("writeBlocking", &writeBlocking_wrap, ( bp::arg("buf"), bp::arg("timeout")))
        .def("writeFast", &writeFast_wrap1, ( bp::arg("buf")))
        .def("writeFast", &writeFast_wrap2, ( bp::arg("buf"), bp::arg("multicast")))
        .add_property("payloadSize", &RF24::getPayloadSize, &RF24::setPayloadSize)
        .def_readwrite( "failureDetected", &RF24::failureDetected );}
