From 6b9bcb3caa6a4810f2538191e235da3fc90235bc Mon Sep 17 00:00:00 2001
From: ShchipkovMY <ShchipkovMY@mpei.ru>
Date: Thu, 14 Sep 2023 09:04:01 +0300
Subject: [PATCH] =?UTF-8?q?code:=20=D0=B4=D0=BE=D0=B1=D0=B0=D0=B2=D0=B8?=
 =?UTF-8?q?=D0=BB=20=D0=B2=D1=8B=D0=B2=D0=BE=D0=B4=20=D0=BE=D1=88=D0=B8?=
 =?UTF-8?q?=D0=B1=D0=BA=D0=B8=20=D0=B8=20=D0=B7=D0=B0=D0=B3=D1=80=D1=83?=
 =?UTF-8?q?=D0=B7=D0=BA=D1=83=20=D1=81=20=D1=81=D0=B5=D1=80=D0=B2=D0=B5?=
 =?UTF-8?q?=D1=80=D0=B0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 main.cpp | 63 +++++++++++++++++++++++++++++++++++++-------------------
 1 file changed, 42 insertions(+), 21 deletions(-)

diff --git a/main.cpp b/main.cpp
index 8c06ab9..7e0ec4e 100644
--- a/main.cpp
+++ b/main.cpp
@@ -5,6 +5,8 @@
 #include "text.h"
 #include "svg.h"
 #include <curl/curl.h>
+#include <sstream>
+#include <string>
 
 using namespace std;
 
@@ -28,38 +30,57 @@ input_data(istream& in, bool prompt)
     ik.numbers.resize(number_count);
     for (size_t i =0; i < number_count; i++)
     {
-        cin >> ik.numbers[i];
+        in >> ik.numbers[i];
     }
     if (prompt)
     cerr<< "Enter bin count: ";
-    cin >> ik.bin_count;
+    in >> ik.bin_count;
     return ik;
 }
 
-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;
+}
 
-        if (curl)
+Input
+download(const string& address)
+{
+    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);
+        res = curl_easy_perform(curl);
+        if (res != CURLE_OK)
         {
-            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);
-            }
+            fprintf(stderr, "curl_easy_perform() failed: %s\n",curl_easy_strerror(res));
+            exit(1);
         }
-        return 0;
+        curl_easy_cleanup(curl);
+    }
+
+    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);
-    auto in = input_data(cin, true);
-    auto bins = make_histogram(in.numbers, in.bin_count);
+    const auto bins = make_histogram(input.numbers, input.bin_count);
     show_histogram_svg(bins);
-    getch();
     return 0;
 }