From 1f1c7b07d782326929505fc07b5eeca912ebbcc0 Mon Sep 17 00:00:00 2001
From: LiTekho <LiTek@mpei.ru>
Date: Sun, 4 Jun 2023 21:46:01 +0300
Subject: [PATCH] code: nxj

---
 main.cpp | 67 ++++++++++++++++++++++++++++++++++++++------------------
 1 file changed, 46 insertions(+), 21 deletions(-)

diff --git a/main.cpp b/main.cpp
index 315badf..eeb8002 100644
--- a/main.cpp
+++ b/main.cpp
@@ -7,6 +7,8 @@
 #include "text.h"
 #include "svg.h"
 #include <curl/curl.h>
+#include <sstream>
+#include <string>
 using namespace std;
 
 struct Input
@@ -31,39 +33,62 @@ input_data(istream& in, bool prompt)
     cerr << "Input numbers: ";
     for (size_t i = 0; i < number_count; i++)
         {
-        cin >> ik.numbers[i];
+        in >> ik.numbers[i];
         }
     cerr << "Input bin count: ";
-    cin>> ik.bin_count;
+    in>> ik.bin_count;
     return ik;
 }
 
 
+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(static_cast<const char*>(items), data_size);
+    return 0;
+}
+
+
+
+Input
+download(const string& address)
+{
+    stringstream buffer;
+    CURL *curl = curl_easy_init();
+    if(curl)
+    {
+        CURLcode res;
+        curl_easy_setopt(curl, CURLOPT_URL, address);
+        curl_easy_setopt(curl, CURLOPT_WRITEDATA, &buffer);
+        res = curl_easy_perform(curl);
+        curl_easy_cleanup(curl);
+        if (res != CURLE_OK)
+
+            {
+            cout << curl_easy_strerror;
+            exit(1);
+            }
+        }
+    curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
+
+    return input_data(buffer, false);
+}
+
+
 int main(int argc, char* argv[])
 {
+    Input input;
     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);
-            curl_easy_cleanup(curl);
-
-            if (res != CURLE_OK)
-                {
-                cout << curl_easy_strerror;
-                exit(1);
-                }
-        }
-        return 0;
+        input = download(argv[1]);
+    }
+    else
+    {
+        input = input_data(cin, true);
     }
-    curl_global_init(CURL_GLOBAL_ALL);
-
-	auto in = input_data(cin, true);
 
-	auto bins = make_histogramm(in.numbers, in.bin_count);
+    const auto bins = make_histogramm(input.numbers, input.bin_count);
 
 	show_histogram_svg(bins);