#include "LoginView.h"

#include "LoginWidget.h"
#include "RegisterWidget.h"

#include <dbService/ClassSet.h>

#include <Widgets/InfoBar.h>

#include <QPainter>
#include <QBoxLayout>
#include <QStackedWidget>

#include <QDebug>

LoginView::LoginView(QWidget *parent) : QWidget(parent)
{
    initialize();
    initLayout();
    setStackIndex(0);
    connectSignalsAndSlots();
}

void LoginView::paintEvent(QPaintEvent *event)
{
    QWidget::paintEvent(event);
    QPainter painter(this);
    QPixmap pixmap(":/resource/background/8.jpg");
    painter.drawPixmap(0, 0,
                       pixmap.scaled(width(), height(), Qt::KeepAspectRatioByExpanding, Qt::SmoothTransformation));
}

void LoginView::setStackIndex(int index)
{
    m_stackedWidget->setCurrentIndex(index % m_stackedWidget->count());
}

void LoginView::initialize()
{
    m_vBoxLayout    = new QVBoxLayout();
    m_stackedWidget = new QStackedWidget(this);
    m_loginWidget   = new LoginWidget(this);
    m_loginWidget->setTitle("登录管理员账号");
    m_registerWidget = new RegisterWidget(this);
}

void LoginView::initLayout()
{
    setLayout(m_vBoxLayout);
    m_vBoxLayout->setAlignment(Qt::AlignCenter);
    m_vBoxLayout->addWidget(m_stackedWidget);
    m_stackedWidget->addWidget(m_loginWidget);
    m_stackedWidget->addWidget(m_registerWidget);
}

void LoginView::connectSignalsAndSlots()
{
    connect(m_loginWidget, &LoginWidget::signalLogin, this, &LoginView::slotLogin);
    connect(m_loginWidget, &LoginWidget::signalCancel, this, &LoginView::slotCancelLogin);
    connect(m_registerWidget, &RegisterWidget::signalConfirm, this, &LoginView::slotConfirmAcc);
    connect(m_registerWidget, &RegisterWidget::signalCancel, this, &LoginView::slotCancelAcc);
    connect(m_stackedWidget, &QStackedWidget::currentChanged, this, &LoginView::slotStackIndexChanged);
}

/// 提示登录错误信息
void LoginView::showLoginAlert(int code) const
{
    if (code == QF_CODE_COMPLETED) {
        return;
    }

    QString msg;

    if (code == QF_CODE_EMPTY_USERNAME) {
        msg = "账号不能为空";
    } else if (code == QF_CODE_EMPTY_PASSWORD) {
        msg = "密码不能为空";
    } else if (code == QF_CODE_USER_NOT_EXISTS) {
        msg = "用户不存在";
    } else if (code == QF_CODE_WRONG_PASSWORD) {
        msg = "密码错误";
    }

    if (!msg.isEmpty()) {
        InfoBar::warning("提示", msg, Qt::Horizontal, false, 2000, InfoBarPosition::TOP_RIGHT, topLevelWidget());
    }
}

void LoginView::slotLogin()
{
    QFUser user(m_loginWidget->account(), m_loginWidget->password());
    int code = user.login();

    qDebug() << __FUNCTION__ << __LINE__ << "login code:" << code;

    if (code == QF_CODE_COMPLETED || code == QF_CODE_ALREADY_LOGIN) {
        m_loginWidget->saveAccountConfig();  // 登录成功后存储登录设置
        if (QFUser::currentUser() != nullptr) {
            qDebug() << __FUNCTION__ << __LINE__ << QFUser::currentUser()->userName;
        }
    } else {
        showLoginAlert(code);
    }

    //        setStackIndex(m_stackedWidget->currentIndex() + 1);
    //        emit signalLogin();
}

void LoginView::slotCancelLogin()
{
    qDebug() << __FUNCTION__ << __LINE__;
    setStackIndex(m_stackedWidget->currentIndex() + 1);
    emit signalCancelLogin();
}

void LoginView::slotConfirmAcc()
{
    qDebug() << __FUNCTION__ << __LINE__;
    setStackIndex(m_stackedWidget->currentIndex() + 1);
}

void LoginView::slotCancelAcc()
{
    qDebug() << __FUNCTION__ << __LINE__;
    setStackIndex(m_stackedWidget->currentIndex() + 1);
}

void LoginView::slotStackIndexChanged()
{
    qDebug() << __FUNCTION__ << __LINE__;
}