#include "WedgeConfig.h"
#include <QCoreApplication>
#include <QDir>
#include <QFile>
#include <QFileInfo>
#include <QJsonDocument>
#include <QJsonObject>
#include <QStandardPaths>
#include <QTextStream>

QString ConfigManager::formatOtc(qint64 msecs) {
	QDateTime dt = QDateTime::fromMSecsSinceEpoch(msecs);
	QDate date = dt.date();

	int otcYear = date.year();
	QDate otcStart(otcYear, 3, 20);
	if (date < otcStart) {
		otcStart = otcStart.addYears(-1);
		otcYear -= 1;
	}
	qint64 otcDay = otcStart.daysTo(date) + 1;

	return QString("%1 %2 0%3 (%4)")
	.arg(dt.toString("hh:mm:ss"))
	.arg(otcDay)
	.arg(otcYear % 100, 2, 10, QChar('0'))
	.arg(dt.toString("dd MMM"));
}

QString ConfigManager::getConfigPath() {
	QString path = QDir::homePath() + "/.config/wedge";
	QDir dir(path);
	if (!dir.exists()) dir.mkpath(".");
	return path;
}

bool ConfigManager::backupNote() {
	const QString src = getConfigPath() + "/wedge.conf";
	const QString dst = getConfigPath() + "/wedge.conf.bk";
	if (!QFile::exists(src)) return true;
	const QString tmp = dst + ".tmp";
	QFile::remove(tmp);
	if (!QFile::copy(src, tmp)) return false;
	QFile::remove(dst);
	return QFile::rename(tmp, dst);
}

qint64 ConfigManager::lastBackupTime() {
	QFileInfo fi(getConfigPath() + "/wedge.conf.bk");
	return fi.exists() ? fi.lastModified().toMSecsSinceEpoch() : 0;
}

void ConfigManager::saveNote(const NoteData &data) {
	QJsonObject json;
	json["autoStart"] = data.autoStart;
	json["autoMerge"] = data.autoMerge;
	json["bgColor"] = data.bgColor.name();
	json["content"] = data.content;
	json["focusColor"] = data.focusColor.name();
	json["fontFamily"] = data.fontFamily;
	json["fontSize"] = data.fontSize;
	json["headerFormat"] = data.headerFormat;
	json["height"] = data.height;
	json["hideTaskbar"] = data.hideTaskbar;
	json["highlightColor"] = data.highlightColor.name();
	json["ipAddress"] = data.ipAddress;
	json["lastModified"] = data.lastModified;
	json["lastSynced"] = data.lastSynced;
	json["networkRole"] = data.networkRole;
	json["networkRoute"] = data.networkRoute;
	json["passKey"] = data.passKey;
	json["textColor"] = data.textColor.name();
	json["width"] = data.width;
	json["x"] = data.x;
	json["y"] = data.y;

	QFile file(getConfigPath() + "/wedge.conf");
	if (file.open(QIODevice::WriteOnly)) {
		file.setPermissions(QFileDevice::ReadOwner | QFileDevice::WriteOwner);
		file.write(QJsonDocument(json).toJson());
	}
	updateAutoStart(data.autoStart);
}

NoteData ConfigManager::loadNote() {
	NoteData data;
	data.autoStart = false;
	data.autoMerge = false;
	data.bgColor = QColor("#486860");
	data.content = "";
	data.focusColor = QColor("#f6f5f4");
	data.fontFamily = "Sans-Serif";
	data.fontSize = 12;
	data.headerFormat = "otcDay EEE dd MMM*";
	data.height = 450;
	data.hideTaskbar = false;
	data.highlightColor = QColor("#66837C");
	data.ipAddress = "192.168.1.10";
	data.lastModified = QDateTime::currentMSecsSinceEpoch();
	data.lastSynced = 0;
	data.networkRole = 0;
	data.networkRoute = 0;
	data.textColor = QColor("#deddda");
	data.width = 350;
	data.x = 100;
	data.y = 100;

	QFile file(getConfigPath() + "/wedge.conf");
	if (file.open(QIODevice::ReadOnly)) {
		QJsonObject json = QJsonDocument::fromJson(file.readAll()).object();
		if (!json.isEmpty()) {
			data.autoStart = json["autoStart"].toBool();
			data.autoMerge = json["autoMerge"].toBool();
			data.bgColor = QColor(json["bgColor"].toString());
			data.content = json["content"].toString();
			data.focusColor = QColor(json["focusColor"].toString());
			data.fontFamily = json["fontFamily"].toString();
			data.fontSize = json["fontSize"].toInt();
			if (json.contains("headerFormat") && !json["headerFormat"].toString().isEmpty())
				data.headerFormat = json["headerFormat"].toString();
			data.height = json["height"].toInt();
			data.hideTaskbar = json["hideTaskbar"].toBool();
			data.highlightColor = QColor(json["highlightColor"].toString());
			data.ipAddress = json["ipAddress"].toString();
			data.lastModified = json["lastModified"].toVariant().toLongLong();
			data.lastSynced = json["lastSynced"].toVariant().toLongLong();
			data.networkRole = json["networkRole"].toInt();
			data.networkRoute = json["networkRoute"].toInt();
			data.passKey = json["passKey"].toString();
			data.textColor = QColor(json["textColor"].toString());
			data.width = json["width"].toInt();
			data.x = json["x"].toInt();
			data.y = json["y"].toInt();
		}
	}
	return data;
}

void ConfigManager::updateAutoStart(bool enable) {
	QString autostartPath = QDir::homePath() + "/.config/autostart";
	QDir().mkpath(autostartPath);
	QString desktopFile = autostartPath + "/wedge.desktop";

	if (enable) {
		QFile file(desktopFile);
		if (file.open(QIODevice::WriteOnly | QIODevice::Text)) {
			QTextStream out(&file);
			out << "[Desktop Entry]\nType=Application\nName=Wedge\n";
			out << "Exec=" << QCoreApplication::applicationFilePath() << "\n";
			out << "Icon=wedge\nComment=Wedge Notes\nTerminal=false\n";
		}
	} else {
		QFile::remove(desktopFile);
	}
}