#include "Env.h"
#include "logic/net/HttpMetaCache.h"
#include <QDir>
#include <QNetworkProxy>
#include <QNetworkAccessManager>
#include "logger/QsLog.h"

#include <QDebug>

Env::Env()
{
	m_qnam = std::make_shared<QNetworkAccessManager>();
}

void Env::destroy()
{
	m_metacache.reset();
	m_qnam.reset();
}

Env& Env::Env::getInstance()
{
	static Env instance;
	return instance;
}

std::shared_ptr< HttpMetaCache > Env::metacache()
{
	Q_ASSERT(m_metacache != nullptr);
	return m_metacache;
}

std::shared_ptr< QNetworkAccessManager > Env::qnam()
{
	return m_qnam;
}


void Env::initHttpMetaCache(QString rootPath, QString staticDataPath)
{
	m_metacache.reset(new HttpMetaCache("metacache"));
	m_metacache->addBase("asset_indexes", QDir("assets/indexes").absolutePath());
	m_metacache->addBase("asset_objects", QDir("assets/objects").absolutePath());
	m_metacache->addBase("versions", QDir("versions").absolutePath());
	m_metacache->addBase("libraries", QDir("libraries").absolutePath());
	m_metacache->addBase("minecraftforge", QDir("mods/minecraftforge").absolutePath());
	m_metacache->addBase("fmllibs", QDir("mods/minecraftforge/libs").absolutePath());
	m_metacache->addBase("liteloader", QDir("mods/liteloader").absolutePath());
	m_metacache->addBase("general", QDir("cache").absolutePath());
	m_metacache->addBase("skins", QDir("accounts/skins").absolutePath());
	m_metacache->addBase("root", QDir(rootPath).absolutePath());
	m_metacache->addBase("translations", QDir(staticDataPath + "/translations").absolutePath());
	m_metacache->Load();
}

void Env::updateProxySettings(QString proxyTypeStr, QString addr, int port, QString user, QString password)
{
	// Set the application proxy settings.
	if (proxyTypeStr == "SOCKS5")
	{
		QNetworkProxy::setApplicationProxy(
			QNetworkProxy(QNetworkProxy::Socks5Proxy, addr, port, user, password));
	}
	else if (proxyTypeStr == "HTTP")
	{
		QNetworkProxy::setApplicationProxy(
			QNetworkProxy(QNetworkProxy::HttpProxy, addr, port, user, password));
	}
	else if (proxyTypeStr == "None")
	{
		// If we have no proxy set, set no proxy and return.
		QNetworkProxy::setApplicationProxy(QNetworkProxy(QNetworkProxy::NoProxy));
	}
	else
	{
		// If we have "Default" selected, set Qt to use the system proxy settings.
		QNetworkProxyFactory::setUseSystemConfiguration(true);
	}

	QLOG_INFO() << "Detecting proxy settings...";
	QNetworkProxy proxy = QNetworkProxy::applicationProxy();
	if (m_qnam.get())
		m_qnam->setProxy(proxy);
	QString proxyDesc;
	if (proxy.type() == QNetworkProxy::NoProxy)
	{
		QLOG_INFO() << "Using no proxy is an option!";
		return;
	}
	switch (proxy.type())
	{
	case QNetworkProxy::DefaultProxy:
		proxyDesc = "Default proxy: ";
		break;
	case QNetworkProxy::Socks5Proxy:
		proxyDesc = "Socks5 proxy: ";
		break;
	case QNetworkProxy::HttpProxy:
		proxyDesc = "HTTP proxy: ";
		break;
	case QNetworkProxy::HttpCachingProxy:
		proxyDesc = "HTTP caching: ";
		break;
	case QNetworkProxy::FtpCachingProxy:
		proxyDesc = "FTP caching: ";
		break;
	default:
		proxyDesc = "DERP proxy: ";
		break;
	}
	proxyDesc += QString("%3@%1:%2 pass %4")
					 .arg(proxy.hostName())
					 .arg(proxy.port())
					 .arg(proxy.user())
					 .arg(proxy.password());
	QLOG_INFO() << proxyDesc;
}