code: Финальный вариант

lab34.cpp

@@ -4,6 +4,9 @@
 #include "text.h"
 #include "histogram_internal.h"
 #include "svg.h"
+#include <curl/curl.h>
+#include <string>
+#include <sstream>
 
 using namespace std;
 
@@ -13,23 +16,80 @@ struct Input {
 };
 
 Input
-input_data() {
+input_data(istream& inn, bool promt) {
     Input in;
+    if (promt) {
+        cerr << "promt: for getting gm in overwatch, u should play supports, cause dps and tanks are 2 hard for noobies \n";
+    }
     size_t number_count;
-    cin >> number_count;
+    inn >> number_count;
     in.numbers.resize(number_count);
     for (size_t i = 0; i < number_count; i++) {
-        cin >> in.numbers[i];
+        inn >> in.numbers[i];
     }
     size_t bin_count;
-    cin >> in.bin_count;
+    inn >> in.bin_count;
     return in;
 }
 
-int main() {
-    Input in = input_data();
-    auto bins = make_histogram(in.numbers, in.bin_count);
-    show_histogram_text(bins);
+size_t
+write_data(void* items, size_t item_size, size_t item_count, void* ctx) {
+    size_t data_size = item_size * item_count;
+    stringstream* buffer = reinterpret_cast<stringstream*>(ctx);
+    buffer->write(reinterpret_cast<const char*>(items), data_size);
+    return data_size;
+}
+
+Input
+download(const string& address, bool verbose = false) {
+    stringstream buffer;
+    CURL* curl = curl_easy_init();
+    if (curl) {
+        CURLcode res;
+        curl_easy_setopt(curl, CURLOPT_URL, address.c_str());
+        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
+        curl_easy_setopt(curl, CURLOPT_WRITEDATA, &buffer);
+        if (verbose) {
+            curl_easy_setopt(curl, CURLOPT_VERBOSE, "-verbose");
+        }
+        res = curl_easy_perform(curl);
+        curl_easy_cleanup(curl); 
+        if (res != CURLE_OK) {
+            cout << curl_easy_strerror(res);
+            exit(1);
+        }
+    }
+    curl_easy_cleanup(curl);
+    return input_data(buffer, false);
+}
+
+int main(int argc, char* argv[]) {
+    Input input;
+    string link;
+    bool flag = false;
+    if (argc == 2) {
+        input = download(argv[1]); 
+    }
+    else if (argc > 2) {
+        for (size_t i = 1; i < argc; i++) {
+            string cur = argv[i];
+            if (cur.find("://") != string::npos) {
+                link = cur;
+            }
+            else if (cur == "-verbose") {
+                flag = true;
+            }
+            else if (cur.find("-") != string::npos && cur != "-verbose") {
+                cout << "Wrong argument, use correct input -verbose or leave input empty" << endl;
+                exit(2);
+            }
+        }
+        input = download(link, flag); 
+    }
+    else {
+        input = input_data(cin, true);
+    }
+    auto bins = make_histogram(input.numbers, input.bin_count);
     show_histogram_svg(bins);
     return 0;
 }