From 2df23ac6575062de3bf926a699e3fcd5753390f9 Mon Sep 17 00:00:00 2001
From: "lab34 (BakaikinKV)" <BakaikinKV@mpei.ru>
Date: Mon, 19 May 2025 01:01:21 +0300
Subject: [PATCH] =?UTF-8?q?code:=D0=B4=D0=BE=D0=B1=D0=B0=D0=B2=D0=BB=D0=B5?=
 =?UTF-8?q?=D0=BD=D1=8B=20write=20data,=20input=20download,=20=D0=B8=D0=B7?=
 =?UTF-8?q?=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=20int=20main?=
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---
 main.cpp | 63 +++++++++++++++++++++++++++++++++++++++++---------------
 1 file changed, 46 insertions(+), 17 deletions(-)

diff --git a/main.cpp b/main.cpp
index cb6718a..0b45db8 100644
--- a/main.cpp
+++ b/main.cpp
@@ -4,6 +4,8 @@
 #include "text.h"
 #include "svg.h"
 #include <curl/curl.h>
+#include <sstream>
+#include <string>
 using namespace std;
 
 struct Input {
@@ -11,26 +13,57 @@ struct Input {
     size_t bin_count{};
 };
 Input
-input_data(istream& in, bool prompt){
+input_data(istream& inp, bool prompt){
     size_t number_count;
     if(prompt){
         cerr << "Enter number count: ";
     }
-    cin >> number_count;
-    Input inp;
-    inp.numbers.resize(number_count);
+    inp >> number_count;
+
+    Input in;
+    in.numbers.resize(number_count);
     for (size_t i = 0; i < number_count; i++)
     {
         if (prompt){
             cerr << "Enter Num[" << i << "]: ";
         }
-        cin >> inp.numbers[i];
+        inp >> in.numbers[i];
     }
     if (prompt) {
         cerr << "Enter bin count: ";
     }
-    cin >> inp.bin_count;
-    return inp;
+    inp >> in.bin_count;
+    return in;
+}
+
+size_t
+write_data(void* items, size_t item_size, size_t item_count, void* ctx) {
+    stringstream* buffer = reinterpret_cast<stringstream*>(ctx);
+    size_t data_size = item_size * item_count;
+    buffer->write(reinterpret_cast<const char*>(items), data_size);
+    return data_size;
+}
+
+Input
+download(const string& adress){
+    stringstream buffer;
+    CURL* curl = curl_easy_init();
+    if(curl) {
+
+        CURLcode res;
+        curl_easy_setopt(curl, CURLOPT_URL, adress.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){
+            cerr << curl_easy_strerror(res);
+            exit(1);
+        }
+        curl_easy_cleanup(curl);
+
+    }
+
+    return input_data(buffer, false);
 }
 
 
@@ -39,17 +72,13 @@ input_data(istream& in, bool prompt){
 int main(int argc, char* argv[])
 {
     curl_global_init(CURL_GLOBAL_ALL);
-    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);
-            return 0;
-        }
+    Input in;
+    if (argc > 1) {
+        in = download(argv[1]);
+    } else {
+        in = input_data(cin, true);
     }
-    auto in = input_data(cin, true);
+
     auto bins = make_histogram(in.numbers, in.bin_count);
     show_histogram_svg(bins);