#include <iostream>
#include <algorithm>

#include "helpers.h"
#include "argh.h"

int main(int argc, const char* argv[])
{
    argh::parser args;
    args.add_params({ "l", "low" });
    args.add_params({ "h", "high" });
    args.add_params({ "s", "signal" });

    args.parse(argc, argv);

    unsigned low, high, s;

    args({"l", "low"}, 12)   >> low;
    args({"h", "high"}, 26)  >> high;
    args({"s", "signal"}, 9) >> s;

    unsigned max = std::max({ low, high, s });
    buffer<double> prices(max);
    buffer<double> macd(max);
    buffer<double> signal(max);


    double price;
    std::cout << "no,price,macd,signal,delta" << std::endl;
    for (int i = 0; std::cin >> price; i++) {
        prices.add(price);
        double value = ema<double>(prices.begin(), prices.begin() + low) - ema<double>(prices.begin(), prices.begin() + high);
        macd.add(value);
        signal.add(ema<double>(macd.begin(), macd.begin() + s));

        std::cout << i << "," << prices[0] << "," << macd[0] << "," << signal[0] << "," << prices[1] - prices[0] << std::endl; 
    }
}