#include <iostream>
#include <vector>
#include <curl/curl.h>
#include "histogram.h"
#include "svg.h"

using namespace std;

struct Input
{
    vector<double> numbers;
    size_t bin_count{};
};

Input
input_data(istream& stream, bool prompt)
{
    size_t number_count;
    if (prompt) {
        cerr << "Enter number count: ";
    }
    stream >> number_count;
    Input in;
    in.numbers.resize(number_count);
    for (size_t i = 0; i < number_count; i++)
    {
        stream >> in.numbers[i];
    }
    if (prompt) {
        cerr << "Enter bin count: ";
    }
    stream >> in.bin_count;
    return in;
}

int main(int argc, char* argv[])
{
    if (argc > 1) {
        CURL* curl = curl_easy_init();
        if (curl) {
            CURLcode res;
            curl_easy_setopt(curl, CURLOPT_URL, argv[1]);
            res = curl_easy_perform(curl);
            if (res != CURLE_OK) {
                fprintf(stderr, "curl_easy_perform() failed: %s\n", curl_easy_strerror(res));
                exit(1);
            }
            curl_easy_cleanup(curl);
        }
        return 0;
    }
    curl_global_init(CURL_GLOBAL_ALL);
    Input in = input_data(cin, true);
    vector<size_t> bins = make_histogram(in.numbers, in.bin_count);
    show_histogram_svg(bins);
}