#include <QDebug>
#include <QFile>
#include <QFileInfo>
#include <QIntValidator>
#include <QJsonArray>
#include <QJsonDocument>
#include <QJsonObject>
#include <QJsonValue>
#include <QProcess>

#include "HUtils.h"
#include "vinteract.h"
#include "w_PrefrencesWindow.h"
#include <unistd.h>

using namespace Hv2ray;
using namespace Utils;

namespace Hv2ray::Ui
{
    PrefrencesWindow::PrefrencesWindow(QWidget *parent)
        : QDialog(parent)
        , ui(new Ui_PrefrencesWindow)
    {
        ui->setupUi(this);
        rootObj = loadRootObjFromConf();
        QJsonObject http = findValueFromJsonArray(rootObj.value("inbounds").toArray(), "tag", "http-in");
        QJsonObject socks = findValueFromJsonArray(rootObj.value("inbounds").toArray(), "tag", "socks-in");

        if (rootObj.value("v2suidEnabled").toBool()) {
            ui->runAsRootCheckBox->setCheckState(Qt::Checked);
        }

        if (!http.isEmpty()) {
            ui->httpPortLE->setText(http.value("port").toString());
            ui->httpCB->setCheckState(Qt::Checked);
        } else {
            ui->httpPortLE->setDisabled(true);
        }

        if (!socks.isEmpty()) {
            ui->socksPortLE->setText(socks.value("port").toString());
            ui->socksCB->setCheckState(Qt::Checked);
        } else {
            ui->socksPortLE->setDisabled(true);
        }

        ui->httpPortLE->setValidator(new QIntValidator());
        ui->socksPortLE->setValidator(new QIntValidator());
        parentMW = parent;
    }

    PrefrencesWindow::~PrefrencesWindow()
    {
        delete ui;
    }

    void PrefrencesWindow::on_buttonBox_accepted()
    {
        if (v2Instance::checkVCoreExes()) {
            if (ui->httpPortLE->text().toInt() != ui->socksPortLE->text().toInt()) {
                QJsonArray inbounds;
                QJsonDocument modifiedDoc;
                inbounds = rootObj.value("inbounds").toArray();
                int socksId = getIndexByValue(inbounds, "tag", "socks-in");

                if (socksId != -1) {
                    inbounds.removeAt(socksId);
                }

                int httpId = getIndexByValue(inbounds, "tag", "http-in");

                if (httpId != -1) {
                    inbounds.removeAt(httpId);
                }

                rootObj.remove("inbounds");
                rootObj.remove("v2suidEnabled");

                if (ui->socksCB->isChecked()) {
                    QJsonObject socks;
                    QJsonObject settings;
                    socks.insert("tag", "socks-in");
                    socks.insert("port", ui->socksPortLE->text().toInt());
                    socks.insert("listen", "127.0.0.1");
                    socks.insert("protocol", "socks");
                    settings.insert("auth", "noauth");
                    settings.insert("udp", true);
                    settings.insert("ip", "127.0.0.1");
                    socks.insert("settings", QJsonValue(settings));
                    inbounds.append(socks);
                }

                if (ui->httpCB->isChecked()) {
                    QJsonObject http;
                    QJsonObject settings;
                    http.insert("tag", "http-in");
                    http.insert("port", ui->httpPortLE->text().toInt());
                    http.insert("listen", "127.0.0.1");
                    http.insert("protocol", "http");
                    settings.insert("auth", "noauth");
                    settings.insert("udp", true);
                    settings.insert("ip", "127.0.0.1");
                    http.insert("settings", QJsonValue(settings));
                    inbounds.append(http);
                }

                rootObj.insert("inbounds", QJsonValue(inbounds));
#ifndef _WIN32
                // Set UID and GID in *nix
                QFileInfo v2rayCoreExeFile("v2ray");

                if (ui->runAsRootCheckBox->isChecked() && v2rayCoreExeFile.ownerId() != 0) {
                    QProcess::execute("pkexec", QStringList() << "bash"
                                      << "-c"
                                      << "chown root:root " + QCoreApplication::applicationDirPath() + "/v2ray" + ";chmod +s " + QCoreApplication::applicationDirPath() + "/v2ray");
                } else if (!ui->runAsRootCheckBox->isChecked() && v2rayCoreExeFile.ownerId() == 0) {
                    uid_t uid = getuid();
                    gid_t gid = getgid();
                    QProcess::execute("pkexec", QStringList() << "chown" << QString::number(uid) + ":" + QString::number(gid) << QCoreApplication::applicationDirPath() + "/v2ray");
                }

                v2rayCoreExeFile.refresh();
                rootObj.insert("v2suidEnabled", v2rayCoreExeFile.ownerId() == 0);
#else
                // No such uid gid thing on windows....
#endif
                modifiedDoc.setObject(rootObj);
                QByteArray byteArray = modifiedDoc.toJson(QJsonDocument::Indented);
                QFile confFile("conf/Hv2ray.config.json");

                if (!confFile.open(QIODevice::WriteOnly)) {
                    showWarnMessageBox(this, tr("#Prefrences"), tr("#CannotOpenConfigFile"));
                    qDebug() << "Cannot open Hv2ray.config.json for modifying";
                }

                confFile.write(byteArray);
                confFile.close();
            } else {
                showWarnMessageBox(this, tr("Prefrences"), tr("PortNumbersCannotBeSame"));
            }
        }
    }

    void PrefrencesWindow::on_httpCB_stateChanged(int checked)
    {
        if (checked != Qt::Checked) {
            ui->httpPortLE->setDisabled(true);
        } else {
            ui->httpPortLE->setEnabled(true);
            ui->httpPortLE->setText("6666");
        }
    }

    void PrefrencesWindow::on_socksCB_stateChanged(int checked)
    {
        if (checked != Qt::Checked) {
            ui->socksPortLE->setDisabled(true);
        } else {
            ui->socksPortLE->setEnabled(true);
            ui->socksPortLE->setText("1080");
        }
    }

    void PrefrencesWindow::on_httpAuthCB_stateChanged(int checked)
    {
        if (checked) {
        }
    }

    void PrefrencesWindow::on_runAsRootCheckBox_stateChanged(int arg1)
    {
        Q_UNUSED(arg1)
#ifdef _WIN32
        showWarnMessageBox(this, tr("Prefrences"), tr("RunAsRootNotOnWindows"));
#endif
    }
}