// Accumulation/Distribution Line
//
// ad - A/D
//
// Cumulative money flow: MF = ((C-L) - (H-C)) / (H-L) * V, AD = SUM(MF)
//
// Inputs:    5 (OHLCV)
// Outputs:   1 (AD Line)
// Constants: 0

#include "ts.h"


ts_parameter_t const ts_ad_p = { .n_inputs = 5, .n_outputs = 1, .n_constants = 0, .params_size = 0 };

uint_t ts_ad_offset( ts_constant_t const *c )
{
	( void )c;
	return ( 0 );
}

int ts_ad(
	fp_t * const *y, uint_t y_n,
	fp_t const * const *x, uint_t x_n,
	uint_t n, ts_constant_t const *c
)
{
	TS_PROLOGUE( ts_ad_p );
	(void)c;

    fp_t hl0 = ts_h( x, 0 ) - ts_l( x, 0 );
    y[0][0] = hl0 != 0
              ? ( ( ts_c( x, 0 ) - ts_l( x, 0 ) ) - ( ts_h( x, 0 ) - ts_c( x, 0 ) ) ) / hl0 * ts_v( x, 0 )
              : 0;

    for( uint_t i = 1; i < n; ++i )
    {
        fp_t hl = ts_h( x, i ) - ts_l( x, i );
        fp_t mf = hl != 0
                  ? ( ( ts_c( x, i ) - ts_l( x, i ) ) - ( ts_h( x, i ) - ts_c( x, i ) ) ) / hl * ts_v( x, i )
                  : 0;
        y[0][i] = y[0][i - 1] + mf;
    }

	return 0;
}