From d7990784168d74e5808997ef50e36db17aa23e2e Mon Sep 17 00:00:00 2001
From: DevyatovaMY <DevyatovaMY@mpei.ru>
Date: Sat, 25 May 2024 19:07:00 +0300
Subject: [PATCH] =?UTF-8?q?code:=20=D1=81=D0=BE=D1=85=D1=80=D0=B0=D0=BD?=
 =?UTF-8?q?=D0=B5=D0=BD=D0=B8=D0=B5=20=D0=B4=D0=B0=D0=BD=D0=BD=D1=8B=D1=85?=
 =?UTF-8?q?=20=D0=B2=20=D0=B1=D1=83=D1=84=D0=B5=D1=80?=
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---
 main.cpp | 34 ++++++++++++++++++++++++++--------
 1 file changed, 26 insertions(+), 8 deletions(-)

diff --git a/main.cpp b/main.cpp
index da59f49..ebfed85 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,5 +1,7 @@
 #include <iostream>
 #include <vector>
+#include <sstream>
+#include <string>
 #include <curl/curl.h>
 #include "histogram.h"
 #include "svg.h"
@@ -33,13 +35,22 @@ input_data(istream& stream, bool prompt)
     return in;
 }
 
-int main(int argc, char* argv[])
+size_t write_data(void* items, size_t item_size, size_t item_count, void* ctx)
 {
-    if (argc > 1) {
-        CURL* curl = curl_easy_init();
+    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) {
+    stringstream buffer;
+    CURL* curl = curl_easy_init();
         if (curl) {
             CURLcode res;
-            curl_easy_setopt(curl, CURLOPT_URL, argv[1]);
+            curl_easy_setopt(curl, CURLOPT_URL, address.c_str());
+            curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
+            curl_easy_setopt(curl, CURLOPT_WRITEDATA, &buffer);
             res = curl_easy_perform(curl);
             if (res != CURLE_OK) {
                 fprintf(stderr, "curl_easy_perform() failed: %s\n", curl_easy_strerror(res));
@@ -47,10 +58,17 @@ int main(int argc, char* argv[])
             }
             curl_easy_cleanup(curl);
         }
-        return 0;
+    return input_data(buffer, false);
+}
+
+int main(int argc, char* argv[]) {
+    Input input;
+    if (argc > 1) {
+            input = download(argv[1]);
+    }
+    else {
+        input = input_data(cin, true);
     }
-    curl_global_init(CURL_GLOBAL_ALL);
-    Input in = input_data(cin, true);
-    vector<size_t> bins = make_histogram(in.numbers, in.bin_count);
+    vector<size_t> bins = make_histogram(input.numbers, input.bin_count);
     show_histogram_svg(bins);
 }