#include "binding.h"
#include "signal_processing.h"

#include <stdio.h>

static const char * BINDING_HW_STRING = "HW";
static const char * BINDING_SW_STRING = "SW";
static const char * UNKOWN_STRING = "UNKOWN_STRING";

void binding_from_value( uint32_t value, uint32_t * binding ) {
    for ( uint32_t i = 0; i < TASK_COUNT; ++i ) {
        binding[ i ] = value & 1;
        value >>= 1;
    }
}

int binding_get_channel_binding( const uint32_t * connections,
    const uint32_t * binding,
    uint32_t n,
    DataChannelBinding * channel_binding ) {

    if ( n >= CHANNEL_COUNT ) {
        printf( "ERROR in %s: %" PRIu32 " not a valid channel number\n",
            __func__, n );
        return 1;
    }

    channel_binding->sink = binding[ n ];
    channel_binding->source = binding[ connections[ n ] ];

    return 0;
}

const char * binding_to_string( uint32_t binding ) {
    switch ( binding ) {
    case BINDING_SW: return BINDING_SW_STRING;
    case BINDING_HW: return BINDING_HW_STRING;
    }

    return UNKOWN_STRING;
}