#include <stddef.h>
#include "ts.h"

bool ts_test_mfi( void )
{
    uint_t k = 3;

    fp_t const o[] = { 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 };
    fp_t const h[] = { 12, 13, 14, 15, 16, 17, 18, 19, 20, 21 };
    fp_t const l[] = { 8,  9,  10,  11,  12,  13,  14,  15,  16,  17 };
    fp_t const c[] = { 11, 12, 13, 14,  15,  16,  17,  18,  19,  20 };
    fp_t const v[] = { 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000 };

    fp_t const * const x[] = { o, h, l, c, v };

    fp_t tp[10] = { 0 };
    for( uint_t i = 0; i < 10; ++i )
    {
        tp[i] = ( h[i] + l[i] + c[i] ) / 3.0;
    }

    fp_t pos_sum = 0;
    fp_t neg_sum = 0;

    for( uint_t i = 1; i <= k; ++i )
    {
        fp_t raw_mf = tp[i] * v[i];
        if( tp[i] > tp[i - 1] )
        {
            pos_sum += raw_mf;
        }
        else
        {
            neg_sum += raw_mf;
        }
    }

    fp_t e[10] = { 0 };
    e[0] = ( neg_sum == 0 ) ? 100.0 : 100.0 - 100.0 / ( 1.0 + pos_sum / neg_sum );

    for( uint_t i = k + 1; i < 10; ++i )
    {
        fp_t cur_raw_mf = tp[i] * v[i];
        if( tp[i] > tp[i - 1] ) pos_sum += cur_raw_mf;
        else neg_sum += cur_raw_mf;

        fp_t old_raw_mf = tp[i - k] * v[i - k];
        if( tp[i - k] > tp[i - k - 1] ) pos_sum -= old_raw_mf;
        else neg_sum -= old_raw_mf;

        e[i - k] = ( neg_sum == 0 ) ? 100.0 : 100.0 - 100.0 / ( 1.0 + pos_sum / neg_sum );
    }

    fp_t const * const e_arr[1] = { e };

    uint_t c_val = k;

    return ts_test(ts_mfi, ts_mfi_offset, x, e_arr, 10, (ts_constant_t *)&c_val, &ts_mfi_p);
}