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

bool ts_test_vwap_period( void )
{
    uint_t k = TS_TEST_K;

    fp_t const o[] = { 10, 11, 12, 11, 12, 10, 11, 13, 12, 14 };
    fp_t const h[] = { 12, 13, 14, 12, 14, 11, 12, 15, 14, 16 };
    fp_t const l[] = { 8,  9,  10,  9,  10,  9,  10,  11,  10,  12 };
    fp_t const c[] = { 11, 12, 10, 11, 11, 10, 12, 14, 13, 15 };
    fp_t const v[] = { 100, 200, 300, 400, 500, 300, 200, 400, 300, 500 };

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

    fp_t sum_cv = 0;
    fp_t sum_v = 0;
    uint_t count = 0;
    uint_t offset = k - 1;
    fp_t e[10] = { 0 };

    for( uint_t i = 0; i < 10; ++i )
    {
        sum_cv += c[i] * v[i];
        sum_v += v[i];
        count++;
        if (i >= offset)
            e[i - offset] = sum_v != 0 ? sum_cv / sum_v : 0;
        if( count >= k )
        {
            sum_cv = 0;
            sum_v = 0;
            count = 0;
        }
    }

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

    uint_t c_val = k;

    return ts_test(ts_vwap_period, ts_vwap_period_offset, x, e_arr, 10, (ts_constant_t *)&c_val, &ts_vwap_period_p);
}