//
// Created by Krad on 2021/10/8.
//
#include "ui_tabformwidget.h"
#include "SelectFormWidget.h"

#include <QHBoxLayout>
#include <QToolButton>
#include <QTableWidget>
#include <QScroller>
#include <QHeaderView>
#include <QUuid>
#include <QDate>
#include <QDebug>

#include "components/SlideTableView.h"
#include "db/SQLHelper.h"
#include "guimacros.h"
#include "event/EventCenter.h"
#include "dialogs/AccountFormDialog.h"
#include "dialogs/AlertDialog.h"
#include "log/UserOperationLog.h"
#include "components/VerticalTextToolButton.h"

SelectFormWidget::SelectFormWidget(QWidget* parent)
: TabFormWidget(parent)
, mBtnAccount(new QToolButton(this))
, mBtnWorklist(new QToolButton(this))
, mBtnAdd(new QToolButton(this))
, mBtnEdit(new QToolButton(this))
, mBtnDelete(new QToolButton(this))
, mBtnSelect(new QToolButton(this))
, mPatTable(new SlideTableView(this))
, mModel(nullptr)
, mEditPatForm(new PatientDetailForm(this))
{
	//init command bar
    auto layout = new QHBoxLayout();
	ui->commandWidget->setLayout(layout);
    initGeneralButtons(layout);

    layout->addSpacerItem(new QSpacerItem(20, 20, QSizePolicy::Expanding));
    addVerticalLine(layout);
    initPatEditButtons(layout);
    initDataModel();
    //Init content widget
	auto* contentLayout = new QHBoxLayout();
	contentLayout->setContentsMargins(5, 5, 0, 5);
	this->ui->contentWidget->setLayout(contentLayout);
    initTableView(contentLayout);
    addVerticalLine(contentLayout);
    initDetailPanel(contentLayout);
    //select default row 0
	if (mModel->rowCount() > 0)
	{
		mPatTable->selectRow(0);
        setPatientDetail(mPatTable, mModel, mEditPatForm);
    }
    // event ResponsePreview slot
	connect(EventCenter::Default(), &EventCenter::ResponsePreview, [=](QObject* sender, QObject* data) {
        prepareButtons(true);
		});
    // event ResponseStop slot
	connect(EventCenter::Default(), &EventCenter::ResponseStop, [=](QObject* sender, QObject* data) {
        prepareButtons(false);
	});
    // event ReloadLanguage slot;
	connect(EventCenter::Default(), &EventCenter::ReloadLanguage, this, &SelectFormWidget::reloadLanguage);
	//first prepare buttons!
    prepareButtons(false);
}

void SelectFormWidget::prepareButtons(bool disableALL) {
    bool stateFlag = (mPatTable->currentIndex().row() >= 0);
    mBtnSelect->setEnabled(stateFlag && !disableALL);
    mBtnDelete->setEnabled(stateFlag && !disableALL);
    mBtnEdit->setEnabled(stateFlag && !disableALL);
    mBtnAdd->setEnabled(!disableALL);
}

void SelectFormWidget::initGeneralButtons(QHBoxLayout *layout) {
    INIT_TOOL_BTN(Account, ":/icons/account.png")
    INIT_TOOL_BTN(Worklist, ":/icons/setting.png")
    mBtnAccount->setText(tr("Account"));
    mBtnWorklist->setText(tr("Worklist"));
    // mBtn account slot
    connect(mBtnAccount, &QToolButton::clicked, [=]() {
        AccountFormDialog dialog(this);
        dialog.setWindowModality(Qt::WindowModal);
        dialog.exec();
    });
}

void SelectFormWidget::initPatEditButtons(QHBoxLayout *layout) {
    INIT_TOOL_BTN(Add, ":/icons/add.png")
    INIT_TOOL_BTN(Edit, ":/icons/details.png")
    INIT_TOOL_BTN(Delete, ":/icons/close_circle.png")
    INIT_TOOL_BTN(Select, ":/icons/selected.png")
    mBtnAdd->setText(tr("Add"));
    mBtnEdit->setText(tr("Edit"));
    mBtnDelete->setText(tr("Delete"));
    mBtnSelect->setText(tr("Select"));

    // btn add & edit slot
    connect(mBtnAdd, &QToolButton::clicked, this, &SelectFormWidget::editPatient);
    connect(mBtnEdit, &QToolButton::clicked, this, &SelectFormWidget::editPatient);

    // btn delete slot
    connect(mBtnDelete, &QToolButton::clicked, this, &SelectFormWidget::delPatient);

    // mBtn select slot
    connect(mBtnSelect, &QToolButton::clicked, this, &SelectFormWidget::selectPatient);
}

void SelectFormWidget::editPatient() {
    bool addFlag = sender() == mBtnAdd;
    EditPatientDialog dialog(this);
    if (addFlag){
        dialog.clearPatientInformation();
    }
    else{
        dialog.setPatientInformation(mEditPatForm->getPatientInformation());
    }

    dialog.setWindowModality(Qt::WindowModal);
    dialog.setModel(mModel);
    // accept change
    if (dialog.exec() == QDialog::Accepted) {
        if (addFlag){
            mPatTable->selectRow(0);
            mModel->selectRow(0);
        }
        else{
            mPatTable->clicked(mPatTable->currentIndex());
            setPatientDetail(mPatTable, mModel, mEditPatForm);
        }
        LOG_USER_OPERATION(AddPatient)
        mBtnSelect->setEnabled(true);
    }
}

void SelectFormWidget::delPatient() {
    if (mPatTable->currentIndex().row() < 0) return;
    AlertDialog dialog(this);
    dialog.setWindowModality(Qt::WindowModal);
    QString pUid = mModel->index(mPatTable->currentIndex().row(), PatientUID).data().toString();
    // patient has been selected as the scan patient!
    if (selectedPatientUID == pUid){
        dialog.setButtonMode(OkOnly);
        dialog.setTitle(tr("Alert"));
        dialog.setAlertMessage(QString(tr("Can't delete selected Patient !")));
        dialog.exec();
        return;
    }
    // not the selected one, confirm!
    dialog.setButtonMode(OkAndCancel);
    dialog.setTitle("Confirm");
    QString pat_name = mModel->index(mPatTable->currentIndex().row(), Name).data().toString();
    dialog.setAlertMessage(QString(tr("Delete Patient \"%1\" ?")).arg(pat_name));
    if (dialog.exec() != QDialog::Accepted) return;
    // need delete clear edit panel detail
    mEditPatForm->clearPatientInformation();
    mModel->setData(mModel->index(mPatTable->currentIndex().row(), Flag), 9);

    if (mModel->submitAll()) {
        mModel->select();
        if (mModel->rowCount() > 0) {
            mPatTable->selectRow(0);
            mModel->selectRow(0);
            setPatientDetail(mPatTable, mModel, mEditPatForm);
            LOG_USER_OPERATION(DeletePatient)
        }
    } else {
        //TODO:error handle
        dialog.setButtonMode(OkOnly);
        dialog.setTitle(tr("Alert"));
        dialog.setAlertMessage(QString(tr("Can't delete selected Patient , db submit error!")));
        dialog.exec();
    }
    prepareButtons(false);
}

void SelectFormWidget::selectPatient() {
    EventCenter::Default()->triggerEvent(PatientSelected, nullptr, mEditPatForm->getPatientInformation()->Copy());
    selectedPatientUID = mEditPatForm->getPatientInformation()->PatientUID;
    LOG_USER_OPERATION(SelectPatient)
}

void SelectFormWidget::initDetailPanel(QHBoxLayout *contentLayout) {// prepare edit panel
    mEditPatForm->setObjectName("patientDetailWidget");
    mEditPatForm->hide();
    contentLayout->addWidget(mEditPatForm);
    auto* btnShowEdit = new VerticalTextToolButton(this);
    btnShowEdit->setObjectName("showeditBtn");
    btnShowEdit->setIcon(QIcon(":/icons/edit.png"));
    btnShowEdit->setIconSize(QSize(30, 30));
    btnShowEdit->setToolButtonStyle(Qt::ToolButtonTextUnderIcon);
    btnShowEdit->setFixedHeight(225);
    btnShowEdit->setVerticalText("Patient Detail");
    contentLayout->addWidget(btnShowEdit);
    contentLayout->setAlignment(btnShowEdit, Qt::AlignTop);

    // btn show slot
    connect(btnShowEdit, &QToolButton::clicked, [=]() {
        mEditPatForm->show();
        btnShowEdit->hide();
    });
    //btn hide slot
    connect(mEditPatForm, &PatientDetailForm::hideBtnClicked, [=]() {
        mEditPatForm->hide();
        btnShowEdit->show();
    });
}

void SelectFormWidget::initTableView(QHBoxLayout *contentLayout) {// TableView for patient
    mPatTable->setAlternatingRowColors(true);
    mPatTable->setSelectionMode(QAbstractItemView::SingleSelection);
    mPatTable->setEditTriggers(QAbstractItemView::NoEditTriggers);
    mPatTable->setSelectionBehavior(QAbstractItemView::SelectRows);
    mPatTable->verticalHeader()->setDefaultSectionSize(38);
    mPatTable->horizontalHeader()->setStretchLastSection(true);
    //data from SQLITE
//
//avoid pan comsumed by tableview!
    mPatTable->viewport()->ungrabGesture(Qt::PanGesture);

    mPatTable->setSortingEnabled(true); // enable sortingEnabled
    mPatTable->setModel((QAbstractItemModel*) mModel);
    mPatTable->hideColumn(0);
    mPatTable->hideColumn(7);
    mPatTable->show();

    mPatTable->setColumnWidth(1, 250);
    mPatTable->setColumnWidth(2, 250);
    mPatTable->setColumnWidth(3, 160);
    mPatTable->setColumnWidth(4, 120);
    mPatTable->setColumnWidth(5, 250);
    contentLayout->addWidget(mPatTable);
    //table current row selection changing event
    connect(mPatTable, &SlideTableView::currentRowChanged, [=](int row) {
        setPatientDetail(mPatTable, mModel, mEditPatForm);
        prepareButtons(false);
    });

    // after sort by column
    connect(mPatTable->horizontalHeader(), &QHeaderView::sectionClicked, [=](int index){
        mEditPatForm->clearPatientInformation();
        prepareButtons(false);
        if(mModel->rowCount() > 0){
            mPatTable->selectRow(0);
            mModel->selectRow(0);
        }
    });
}

void SelectFormWidget::initDataModel() {//TODO:单独初始化预防SQL错误
    mModel = SQLHelper::getTable("Patient");
    mModel->setFilter("Flag=0");
    mModel->sort(5, Qt::DescendingOrder);
    mModel->select();
    mModel->setHeaderData(1, Qt::Horizontal, "ID");
    mModel->setHeaderData(2, Qt::Horizontal, tr("Name"));
    mModel->setHeaderData(3, Qt::Horizontal, tr("Birth Date"));
    mModel->setHeaderData(4, Qt::Horizontal, tr("Gender"));
    mModel->setHeaderData(5, Qt::Horizontal, tr("Add Date"));
    mModel->setHeaderData(6, Qt::Horizontal, tr("Comment"));
}

void SelectFormWidget::setPatientDetail(const SlideTableView *table, const QSqlTableModel *model,
                                        PatientDetailForm *edit_patient) const {
    PatientInformation pat;
#define ADD_PATIENT_PROPERTY(val)\
        pat. val = model->data(model->index(table->currentIndex().row(),PatientInformationEnum:: val),Qt::EditRole).toString();
    EDIT_PATIENT()
#undef ADD_PATIENT_PROPERTY
    edit_patient->setPatientInformation(&pat);
}

void SelectFormWidget::reloadLanguage(){
    mModel->setHeaderData(1, Qt::Horizontal, "ID");
    mModel->setHeaderData(2, Qt::Horizontal, tr("Name"));
    mModel->setHeaderData(3, Qt::Horizontal, tr("Birth Date"));
    mModel->setHeaderData(4, Qt::Horizontal, tr("Gender"));
    mModel->setHeaderData(5, Qt::Horizontal, tr("Add Date"));
    mModel->setHeaderData(6, Qt::Horizontal, tr("Comment"));

    mBtnAccount->setText(tr("Account"));
    //mBtnWorklist->setText(tr("Worklist"));
    mBtnAdd->setText(tr("Add"));
    mBtnEdit->setText(tr("Edit"));
    mBtnDelete->setText(tr("Delete"));
    mBtnSelect->setText(tr("Select"));
}