tv_rename/functions.cpp

#include "functions.hpp"
#include "filesystem.hpp"
#include <iostream>
#include <curl/curl.h>
#include <stdlib.h>
#include <regex>

size_t writeCallback( void *contents, size_t size, size_t nmemb, void *target ) {
	*static_cast<std::string*>(target) += std::string(static_cast<char*>(contents), size*nmemb);
	return size * nmemb;
}

Curl::Curl() {
	curl_global_init(CURL_GLOBAL_ALL);
	curl_handle = curl_easy_init();
	curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, writeCallback);
	curl_easy_setopt(curl_handle, CURLOPT_USERAGENT, "libcurl-agent/1.0");
}

Curl::~Curl() {
	curl_easy_cleanup(curl_handle);
	curl_global_cleanup();
}

std::string Curl::execute(const std::string &url) {
	std::string source;
	source.resize(100000);
	curl_easy_setopt(curl_handle, CURLOPT_WRITEDATA, static_cast<void*>(&source));
	curl_easy_setopt(curl_handle, CURLOPT_URL, url.c_str());
	auto res = curl_easy_perform(curl_handle);
	if(res != CURLE_OK) {
		std::cerr << "curl_easy_perform() failed: " << curl_easy_strerror(res) << std::endl;
		return "";
	}
	return source;
}

void findSeason(std::set<std::string> &files, int season, const std::string &path) {
	std::smatch match;
	auto episode = std::regex("[sS][0]{0,2000}" + std::to_string(season) + "[eE][0-9]{1,2000}");
	for( const auto& p: FSLib::Directory(path) ) {
		if(FSLib::isDirectory(path + "/" + p)) {
			findSeason(files, season, path + "/" + p);
			continue;
		}

		if( std::regex_search(p, episode) ) {
			files.insert(path + "/" + p);
		}
	}
}

void iterateFS(std::set<int> &seasons, const std::string &path) {
	std::smatch match;
	auto episode = std::regex("[sS][0-9]{1,2000}[eE][0-9]{1,2000}");
	for( const auto& p: FSLib::Directory(path) ) {
		if(FSLib::isDirectory(path + "/" + p)) {
			iterateFS(seasons, path + "/" + p);
			continue;
		}

		if( std::regex_search(p, match, episode) ) {
			std::string a = match[0];
			a = std::regex_replace(a, std::regex("[eE][0-9]{1,2000}"), "");
			a = a.substr(1);
			seasons.insert(std::stoi(a));
		}
	}
}

std::string getDefUrl( const std::string &show, const std::string &language, Curl &c ) {
	auto search = std::regex_replace(show, std::regex(" "), "+");
	auto source_code = c.execute("https://www.thetvdb.com/search?q=" + search + "&l=" + language);
	auto series = std::regex("<td><a href=\"/series.*?</td>");
	int pos = 1;
	std::vector<std::string> urls;
	for( std::sregex_iterator it(source_code.begin(), source_code.end(), series); it != std::sregex_iterator(); ++it) {
		auto input = (*it).str();
		auto text = std::regex_replace(input, std::regex(".*series.*?>"), "");
		text = text.substr(0, text.size() - 9);
		std::cout << pos << ". " << text << std::endl;
		pos++;
		urls.push_back(std::regex_replace(input, std::regex("\">.*"), "").substr(13));
	}
	std::cout << "Which TV Show is the right one? ";
	std::cin >> pos;
	std::cin.clear();
	std::cin.ignore(1, '\n');
    return "https://www.thetvdb.com" + urls[pos-1];
}

void printHelp() {
	std::cout << "usage: tv_rename [--help] [--show show name] [--season season number]" << std::endl;
	std::cout << "                 [--correct-path] [--show-path show path] [--trust]" << std::endl;
	std::cout << "                 [--linux] [--lang language] [--print-langs]" << std::endl;
	std::cout << std::endl << "Rename TV episodes" << std::endl << std::endl << "optional arguments:" << std::endl;
	std::cout << "  -h, --help\t\tshow this help message and exit" << std::endl;
	std::cout << "  --show show name, -s show name" << std::endl;
	std::cout << "\t\t\tTV show from which you want episode names (needs to be" << std::endl;
	std::cout << "\t\t\tin quotation marks if it has more than one word)" << std::endl;
	std::cout << "  --season season number, -n season number" << std::endl;
	std::cout << "\t\t\tSeason number/s (if multiple seasons, put them in" << std::endl;
	std::cout << "\t\t\tquotation marks and seperate by one space)" << std::endl;
	std::cout << "\t\t\tor 'all' for all seasons in selected subdirectory" << std::endl;
	std::cout << "  --correct-path, -c\tThis is the correct path, stop asking me!" << std::endl;
	std::cout << "  --show-path show path, -sp show path" << std::endl;
	std::cout << "\t\t\tPath of the directory with episodes" << std::endl;
	std::cout << "  --trust, -t\t\tDon't ask whether the names are correct" << std::endl;
	std::cout << "  --linux, -x\t\tDon't replace characters characters that are illegal in Windows" << std::endl;
	std::cout << "  --lang language, -l language" << std::endl;
	std::cout << "\t\t\tSelect which language the episode names shoud be in" << std::endl;
	std::cout << "  --print-langs, -p\tPring available language" << std::endl;
}