From b8b44946282e0c4ad54431695f89e11319da9b4c Mon Sep 17 00:00:00 2001
From: Benjo <benjamin.kraft@online.de>
Date: Wed, 29 Dec 2021 00:59:50 +0100
Subject: [PATCH] added fetching from site if input not present locally

---
 .gitignore         |    1 +
 CMakeLists.txt     |   11 +-
 input/01_input.txt | 2252 +++++++++++++++++++++++++++++++++++++++-----
 input/02_input.txt | 1000 ++++++++++++++++++++
 input/03_input.txt | 1000 ++++++++++++++++++++
 src/02/Day02.cpp   |    2 +-
 src/03/Day03.cpp   |    2 +-
 src/main.cpp       |   37 +-
 8 files changed, 4037 insertions(+), 268 deletions(-)
 create mode 100644 input/02_input.txt
 create mode 100644 input/03_input.txt

diff --git a/.gitignore b/.gitignore
index ff9047e..5709d20 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 /cmake-build-debug/
+session/
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 52359e3..d14c298 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,11 +3,16 @@ project(AdventOfCode2022)
 
 set(CMAKE_CXX_STANDARD 23)
 
-include(FetchContent)
-FetchContent_Declare(cpr GIT_REPOSITORY https://github.com/libcpr/cpr.git GIT_TAG 100cf2050be7619430a615cd0d580b33c62fde6b)
-FetchContent_MakeAvailable(cpr)
+if (WIN32)
+    set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
+    set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
+endif()
 
 file(GLOB_RECURSE SRC_FILES src/**.cpp src/**.h)
 add_executable(AdventOfCode2022 ${SRC_FILES})
 
+include(FetchContent)
+FetchContent_Declare(cpr GIT_REPOSITORY https://github.com/libcpr/cpr.git GIT_TAG 100cf2050be7619430a615cd0d580b33c62fde6b)
+FetchContent_MakeAvailable(cpr)
+
 target_link_libraries(AdventOfCode2022 PRIVATE cpr::cpr)
\ No newline at end of file
diff --git a/input/01_input.txt b/input/01_input.txt
index 975a1e1..7e216a8 100644
--- a/input/01_input.txt
+++ b/input/01_input.txt
@@ -1,252 +1,2000 @@
-inp w
-mul x 0
-add x z
-mod x 26
-div z 1
-add x 11
-eql x w
-eql x 0
-mul y 0
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-add y w
-add y 12
-mul y x
-add z y
-inp w
-mul x 0
-add x z
-mod x 26
-div z 26
-add x -5
-eql x w
-eql x 0
-mul y 0
-add y 25
-mul y x
-add y 1
-mul z y
-mul y 0
-add y w
-add y 12
-mul y x
-add z y
-inp w
-mul x 0
-add x z
-mod x 26
-div z 26
-add x -3
-eql x w
-eql x 0
-mul y 0
-add y 25
-mul y x
-add y 1
-mul z y
-mul y 0
-add y w
-add y 12
-mul y x
-add z y
-inp w
-mul x 0
-add x z
-mod x 26
-div z 1
-add x 14
-eql x w
-eql x 0
-mul y 0
-add y 25
-mul y x
-add y 1
-mul z y
-mul y 0
-add y w
-add y 2
-mul y x
-add z y
-inp w
-mul x 0
-add x z
-mod x 26
-div z 1
-add x 15
-eql x w
-eql x 0
-mul y 0
-add y 25
-mul y x
-add y 1
-mul z y
-mul y 0
-add y w
-add y 11
-mul y x
-add z y
-inp w
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diff --git a/input/02_input.txt b/input/02_input.txt
new file mode 100644
index 0000000..227deb8
--- /dev/null
+++ b/input/02_input.txt
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diff --git a/input/03_input.txt b/input/03_input.txt
new file mode 100644
index 0000000..b24f932
--- /dev/null
+++ b/input/03_input.txt
@@ -0,0 +1,1000 @@
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diff --git a/src/02/Day02.cpp b/src/02/Day02.cpp
index cb1c2ad..88d736d 100644
--- a/src/02/Day02.cpp
+++ b/src/02/Day02.cpp
@@ -2,5 +2,5 @@
 #include "Day02.h"
 
 int Day02::run() {
-    return 1;
+    return 0;
 }
diff --git a/src/03/Day03.cpp b/src/03/Day03.cpp
index 6e1e7e0..7734c40 100644
--- a/src/03/Day03.cpp
+++ b/src/03/Day03.cpp
@@ -2,5 +2,5 @@
 #include "Day03.h"
 
 int Day03::run() {
-    return 1;
+    return 0;
 }
diff --git a/src/main.cpp b/src/main.cpp
index 42e7e89..54b5946 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,43 +1,58 @@
 #include <iostream>
 #include <string>
-#include <fstream>
 #include <vector>
 #include <filesystem>
 #include "days.h"
-//#include <cpr/cpr.h>
+#include <cpr/cpr.h>
 
-std::vector<std::string> getInput(int day){
+std::vector<std::string> getInput(int day, std::string key){
+    std::vector<std::string> result;
 
     char dayStrPadded[3];
     sprintf(dayStrPadded, "%02u", day);
     std::string localFilePath = "input/" + std::string(dayStrPadded) + "_input.txt";
 
     if (!std::filesystem::exists({localFilePath})){
+        if (key.empty())
+            return result;
         std::string dayStr = std::to_string(day);
         std::string url = "https://adventofcode.com/2021/day/" + dayStr + "/input";
-        std::string key = "sdfsd";
-        std::string cookie = "session=" + key;
         std::cout << "Input does not exist. Fetching from " + url << std::endl;
-        //cpr::Response res = cpr::Get(cpr::Url {url}, cpr::Header{{"Cookie", cookie}});
-        //std::cout << res.text << std::endl;
+        cpr::Response res = cpr::Get(cpr::Url {url}, cpr::Cookies{{"session", key}});
+        std::string content = res.text;
+        std::ofstream file(localFilePath);
+        file << content;
+        file.close();
     }
 
-    std::fstream file;
-    file.open(localFilePath, std::ios::in);
+    std::ifstream file(localFilePath);
 
-    std::vector<std::string> result;
     std::string line;
     while (std::getline(file, line))
         result.push_back(line);
 
+    file.close();
+
     return result;
 }
 
+std::string getSessionKey(){
+    std::string key;
+    std::ifstream file("session");
+    if (!file.good())
+        return "";
+    file >> key;
+    file.close();
+    return key;
+}
+
 int main(int argc, char *argv[]) {
 
+    std::string key = getSessionKey();
+
     for (int i = 1; i < argc; i++){
         int dayNum = std::stoi(argv[i]);
-        std::vector<std::string> input = getInput(dayNum);
+        std::vector<std::string> input = getInput(dayNum, key);
         auto day = getDay(dayNum, input);
         int code = day->run();
         if (code != 0)