#include "ConfigUtil.h"

#include "ConfigUtil.h"
#include <iostream>
#include <fstream>

bool fileExists(const std::string& filename) {
	std::ifstream file(filename);
	return file.good(); // Èç¹ûÎļþ³É¹¦´ò¿ª£¬Ôò·µ»Ø true
}

void ConfigUtil::readConfig(libconfig::Config& config)
{

	string strConfPath = "config.cfg";
	if (!fileExists(strConfPath)) {
		std::ofstream file(strConfPath);
		file.is_open();
	}

	//½â¶ÁÅäÖÃÎļþ
	try {
		config.readFile(strConfPath.c_str());
	}
	catch (const libconfig::FileIOException& fioex) {
		std::cerr << "I/O exception while reading the file." << std::endl;
	}
	catch (const libconfig::ParseException& pex) {
		std::cerr << "Parse error at " << pex.getFile() << ":" << pex.getLine()
			<< " - " << pex.getError() << std::endl;
	}
}

void ConfigUtil::writeConfig(libconfig::Config& config)
{
	config.writeFile("config.cfg");
}

int ConfigUtil::readIntConfig(const char* key)
{

	libconfig::Config mConfig;
	readConfig(mConfig);
	libconfig::Setting& root = mConfig.getRoot();
	if (root.exists(key)) {
		int val;
		root.lookupValue(key, val);
		return val;
	}
	throw string("ÉÐδ»ñÈ¡µ½ÄÚÈÝ");
}

string ConfigUtil::readStringConfig(const char* key)
{
	libconfig::Config mConfig;
	readConfig(mConfig);
	libconfig::Setting& root = mConfig.getRoot();
	if (root.exists(key)) {
		//string val;
		const char* val;
		root.lookupValue(key, val);
		return string(val);
	}
	throw string("ÉÐδ»ñÈ¡µ½ÄÚÈÝ");
}



void ConfigUtil::setIntConfig(const char* key, int val) {
	libconfig::Config mConfig;
	readConfig(mConfig);
	libconfig::Setting& root = mConfig.getRoot();
	if (root.exists(key)) {
		root[key] = val;
	}
	else {
		root.add(key, libconfig::Setting::TypeInt) = val;
	}
	writeConfig(mConfig);
}
void ConfigUtil::setStringConfig(const char* key, string val) {
	libconfig::Config mConfig;
	readConfig(mConfig);
	libconfig::Setting& root = mConfig.getRoot();
	if (root.exists(key)) {
		root[key] = val.c_str();
	}
	else {
		root.add(key, libconfig::Setting::TypeString) = val.c_str();
	}
	writeConfig(mConfig);
}

list<string> ConfigUtil::getKeys()
{
	libconfig::Config mConfig;
	readConfig(mConfig);
	libconfig::Setting& root = mConfig.getRoot();
	list<string> keys;
	for (auto iter = root.begin(); iter != root.end(); ++iter) {
		keys.push_back(iter->getName());
	}
	return keys;
}

void ConfigUtil::delKey(string key)
{
	libconfig::Config mConfig;
	readConfig(mConfig);
	libconfig::Setting& root = mConfig.getRoot();
	root.remove(key);
}