http.cpp

//#pragma once
#include <iostream>
#include <fstream>
#include <filesystem>
#include <json/json.h>
#include <curl/curl.h>
#include <string>
#include <vector>
#include <stringstuff.h>

#include <structs.h>

namespace fs = std::filesystem;

//alright, so the modlist.html and manifest.json list the mods in the same order
//meaning we can just peice together a url and grab the download link and throw it in a vector for later


static std::string GetJarName(Mod &mod, CURL *curl)
{
    //std::string url = "api.curseforge.com/v1/mods/";
    std::string url = "https://api.curse.tools/v1/cf/mods/";

    url += std::to_string(mod.ModId);
    url += "/files/";
    url += std::to_string(mod.FileId);

//    url += " -H \'Accept: application/json\' -H \'x-api-key: ";
//    url += API_KEY;
//    url += "\'";
//#ifdef Windows
//    cmd = ReplaceChar(cmd, "\'", "\"");
//#endif

    curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
    struct curl_slist *headers = NULL;
    //headers = curl_slist_append(headers, "x-api-key: $2a$10$QbCxI6f4KxEs50QKwE2piu1t6oOA8ayOw27H9N/eaH3Sdp5NTWwvO");
    headers = curl_slist_append(headers, "Accept: application/json");
    curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
    FILE *file = fopen( "Curlsetemp.txt", "w");
    curl_easy_setopt(curl, CURLOPT_WRITEDATA, file);
    curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);


    CURLcode error = curl_easy_perform(curl);
    fclose(file);
    if (error)
    {
        printf("Curl returned error code %i, Aborting.\n", error);
        return NULL;
    }

    std::ifstream html("Curlsetemp.txt");
    html.seekg(0, std::ios::end);
    std::streamsize size = html.tellg();
    html.seekg(0, std::ios::beg);
    std::vector<char> buffer(size);

    if (!html.read(buffer.data(), size)) 
    {
        printf("File read error!\n");
        return NULL;
    }

    Json::Reader reader;
    Json::Value Json;
    reader.parse(buffer.data(), Json);

    if (Json.isNull())
    {
        printf("Got no response from CurseForge servers.\n");
        return NULL;
    }
    Json::Value File = Json["data"]["fileName"];

    if (File.isNull())
    {
        printf("Unexpected response from CurseForge servers, Aborting.\n");
        return NULL;
    }

    return File.asString();
}

static int DownloadMod(Mod mod, fs::path path, CURL *curl)
{
    std::string url;
    if (mod.DownloadUrl.empty())
    {
        url = "https://edge.forgecdn.net/files/";

        std::string fileid(std::to_string(mod.FileId));
        std::string idSlug = GetFirstXChars(4, fileid) + "/" + GetLastXChars(4, fileid).c_str();//converting to cstring and back fixes not being able to append more after??
        url += idSlug + "/";
        url += mod.JarName;
    }
    else
    {
        url = mod.DownloadUrl;
        std::vector<std::string> jarname = Split(mod.DownloadUrl, '/');
        mod.JarName = jarname.back();
    }

    url = ReplaceChar(url, ' ', "%20");

    std::string modPath = path.string();
    modPath += "/.minecraft/mods/";
    modPath += mod.JarName;

    curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
    curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);

    FILE *file = fopen(modPath.c_str(), "w");
    curl_easy_setopt(curl, CURLOPT_WRITEDATA, file);
    CURLcode err = curl_easy_perform(curl);
    fclose(file);
    return err;
    //cmd += "?api-key=267C6CA3\" ";
    //cmd += "\" -H \"User - Agent: Mozilla / 5.0 (Windows NT 10.0; Win64; x64; rv:106.0) Gecko / 20100101 Firefox / 106.0\" -H \"Accept : text / html, application / xhtml + xml, application / xml; q = 0.9, image / avif, image / webp, */*;q=0.8\" -H \"Accept-Language: en-US,en;q=0.5\" -H \"Accept-Encoding: gzip, deflate, br\" -H \"Referer: https://www.curseforge.com/\" -H \"DNT: 1\" -H \"Connection: keep-alive\" -H \"Upgrade-Insecure-Requests: 1\" -H \"Sec-Fetch-Dest: document\" -H \"Sec-Fetch-Mode: navigate\" -H \"Sec-Fetch-Site: cross-site\" -H \"Sec-GPC: 1\" -H \"TE: trailers\"";
    //printf(cmd.c_str());
    //return true;

}