4lab/main.cpp

#include <iostream>
#include <vector>
#include "histogram.h1.h"
#include "svg.h"
#include <curl/curl.h>

using namespace std;

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

};


Input input_data(istream& in, bool prompt=false) {
    size_t number_count;
    if (prompt){
        cerr << "Enter number count: ";
    }
    in >> number_count;

    Input result;
    result.numbers.resize(number_count);

    for (size_t i = 0; i < number_count; ++i) {
        in >> result.numbers[i];
    }
    if (prompt){
        cerr << "Enter bin count: ";
    }
    in >> result.bin_count;
    return result;
}

size_t write_callback(void* ptr, size_t size, size_t nmemb, void* stream){
    size_t total_size = size * nmemb;
    return fwrite(ptr, size, nmemb, stdout);
}


int main(int argc, char* argv[]){
    if (argc > 1){
            CURL* curl = curl_easy_init();
            if (!curl){
                cerr << "Failed to initialize cURL" << endl;
                return 1;
            }

            CURLcode res;
            curl_easy_setopt(curl, CURLOPT_URL, argv[1]);
            curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_callback);

            res = curl_easy_perform(curl);{
                if (res != CURLE_OK){
                    cerr << "cURL error: " << curl_easy_strerror(res) << endl;
                    curl_easy_cleanup(curl);
                    return 1;
                }
                curl_easy_cleanup(curl);
                return 0;
            }
            if (curl_global_init(CURL_GLOBAL_ALL) != 0){
                cerr << "Failed cURL initialization" << endl;
                return 1;
            }

        cout << "argc= " << argc << endl;
        for (int i = 0; i < argc; i++){
            cout << "argv[" << i << "] = "  << argv[i] << endl;
        }
        return 0;
    }

    if (curl_global_init(CURL_GLOBAL_ALL)!=0){
            cerr << "failed cURL" << endl;
            return 1;
    }

    auto in = input_data(cin);
    auto bins = make_histogram(in.numbers, in.bin_count);
    show_histogram_svg(bins);
    curl_global_cleanup();

}