src/EditProfileMash.cpp

/**
 * EditProfileMash.cpp is part of bmsapp.
 *
 * bmsapp is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * bmsapp is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#include "EditProfileMash.h"
#include "../ui/ui_EditProfileMash.h"
#include "MainWindow.h"


EditProfileMash::EditProfileMash(int id, QWidget *parent) : QDialog(parent), ui(new Ui::EditProfileMash)
{
    QSqlQuery query;

    qDebug() << "EditProfileMash record:" << id;
    ui->setupUi(this);
    this->recno = id;

    if (id >= 0) {
        query.prepare("SELECT * FROM profile_mash WHERE record = :recno");
        query.bindValue(":recno", id);
        query.exec();
        query.next();

        ui->nameEdit->setText(query.value(1).toString());
        ui->notesEdit->setPlainText(query.value(2).toString());
	QJsonParseError parseError;
        const auto& json = query.value(3).toString();

        if (!json.trimmed().isEmpty()) {
            const auto& formattedJson = QString("%1").arg(json);
            this->steps = QJsonDocument::fromJson(formattedJson.toUtf8(),  &parseError);

            if (parseError.error != QJsonParseError::NoError)
                qDebug() << "Parse error: " << parseError.errorString() << "at" << parseError.offset ;
	}

    } else {
        /* Set some defaults */
	const auto& formattedJson = QString("[]");
	this->steps = QJsonDocument::fromJson(formattedJson.toUtf8());
    }

    connect(ui->nameEdit, &QLineEdit::textChanged, this, &EditProfileMash::is_changed);
    connect(ui->notesEdit, SIGNAL(textChanged()), this, SLOT(is_changed()));
    connect(ui->stepsTable, SIGNAL(cellChanged(int, int)), this, SLOT(cell_Changed(int, int)));

    ui->saveButton->setEnabled(false);
    ui->deleteButton->setEnabled((id >= 0) ? true:false);

    emit refreshTable();

    WindowTitle();
}


void EditProfileMash::refreshTable()
{
    QString w;
    QWidget* pWidget;
    QHBoxLayout* pLayout;
    double  d;
    int	total = 0;

//    qDebug() << "refreshTable" << this->steps << this->steps.isArray() << this->steps.array().size() ;
    /* During filling the table turn off the cellChanged signal because every cell that is filled
     * triggers the cellChanged signal. The QTableWidget has no better signal to use. */
    this->ignoreChanges = true;

    const QStringList labels({tr("Step name"), tr("Type"), tr("Start °C"), tr("End °C"), tr("Rest time"), tr("Ramp time"), tr("Button")});
    ui->stepsTable->setColumnCount(7);
    ui->stepsTable->setColumnWidth(0, 250);	/* Step name	*/
    ui->stepsTable->setColumnWidth(1, 150);	/* Step type	*/
    ui->stepsTable->setColumnWidth(2,  75);	/* Start temp	*/
    ui->stepsTable->setColumnWidth(3,  75);	/* End temp	*/
    ui->stepsTable->setColumnWidth(4,  75);	/* Step time	*/
    ui->stepsTable->setColumnWidth(5,  75);	/* Ramp time	*/
    ui->stepsTable->setColumnWidth(6,  80);	/* Button	*/
    ui->stepsTable->setHorizontalHeaderLabels(labels);
    ui->stepsTable->verticalHeader()->hide();
    ui->stepsTable->setRowCount(this->steps.array().size());

    if (this->steps.isArray()) {
	for (int i = 0; i < this->steps.array().size(); i++) {
	    QJsonObject obj = this->steps.array().at(i).toObject();

	    ui->stepsTable->setItem(i, 0, new QTableWidgetItem(obj["step_name"].toString()));

	    /* Adding step_type 0, 1 or 2 as combobox. */
	    QComboBox* myComboBox = new QComboBox();
	    myComboBox->addItem(tr("Infusion"));
	    myComboBox->addItem(tr("Temperature"));
	    myComboBox->addItem(tr("Decoction"));
	    ui->stepsTable->setCellWidget(i, 1, myComboBox);
	    if (obj["step_type"].isString())
		d = QString(obj["step_type"].toString()).toDouble();
	    else
		d = obj["step_type"].toDouble();
	    myComboBox->setCurrentIndex((int)d);
	    connect<void(QComboBox::*)(int)>(myComboBox, &QComboBox::currentIndexChanged, this, &EditProfileMash::combo_Changed);

	    /* Numbers can be double quoted or not, the old application could do this wrong. */
	    if (obj["step_temp"].isString())
		d = QString(obj["step_temp"].toString()).toDouble();
	    else
		d = obj["step_temp"].toDouble();
	    w = QString("%1").arg(d, 2, 'f', 1, '0');
	    QTableWidgetItem *item = new QTableWidgetItem(w);
            item->setTextAlignment(Qt::AlignCenter|Qt::AlignVCenter);
	    ui->stepsTable->setItem(i, 2, item);

	    if (obj["end_temp"].isString())
                d = QString(obj["end_temp"].toString()).toDouble();
            else
                d = obj["end_temp"].toDouble();
            w = QString("%1").arg(d, 2, 'f', 1, '0');
            item = new QTableWidgetItem(w);
            item->setTextAlignment(Qt::AlignCenter|Qt::AlignVCenter);
            ui->stepsTable->setItem(i, 3, item);

	    if (obj["step_time"].isString())
                d = QString(obj["step_time"].toString()).toDouble();
            else
                d = obj["step_time"].toDouble();
            w = QString("%1").arg(d, 1, 'f', 0, '0');
            item = new QTableWidgetItem(w);
            item->setTextAlignment(Qt::AlignCenter|Qt::AlignVCenter);
            ui->stepsTable->setItem(i, 4, item);
	    total += (int)d;

	    if (obj["ramp_time"].isString())
                d = QString(obj["ramp_time"].toString()).toDouble();
            else
                d = obj["ramp_time"].toDouble();
            w = QString("%1").arg(d, 1, 'f', 0, '0');
            item = new QTableWidgetItem(w);
            item->setTextAlignment(Qt::AlignCenter|Qt::AlignVCenter);
            ui->stepsTable->setItem(i, 5, item);
	    if (i > 0)
		total += (int)d;

	    /* Add the Delete row button */
            pWidget = new QWidget();
            QPushButton* btn_edit = new QPushButton();
            btn_edit->setObjectName(QString("%1").arg(i));  /* Send row with the button */
            btn_edit->setText(tr("Delete"));
            connect(btn_edit, SIGNAL(clicked()), this, SLOT(on_deleteRow_clicked()));
            pLayout = new QHBoxLayout(pWidget);
            pLayout->addWidget(btn_edit);
            pLayout->setContentsMargins(5, 0, 5, 0);
            pWidget->setLayout(pLayout);
            ui->stepsTable->setCellWidget(i, 6, pWidget);
	}
    }

    /* Show the calculated total mash time. */
    ui->totalEdit->setText(QString("%1:%2").arg(total / 60).arg(total % 60, 2, 'f', 0, '0'));
    this->ignoreChanges = false;
}


EditProfileMash::~EditProfileMash()
{
    qDebug() << "EditProfileMash done";
    delete ui;
    emit entry_changed();
}


/*
 * Window header, mark any change with '**'
 */
void EditProfileMash::WindowTitle()
{
    QString txt;

    if (this->recno < 0) {
	txt = QString(tr("BMSapp - Add new mash profile"));
    } else {
	txt = QString(tr("BMSapp - Edit mash profile %1").arg(this->recno));
    }

    if (this->textIsChanged) {
	txt.append((QString(" **")));
    }
    setWindowTitle(txt);
}


void EditProfileMash::on_saveButton_clicked()
{
    QSqlQuery query;

    /* If there are errors in the form, show a message and do "return;" */
    if (ui->nameEdit->text().length() < 2) {
	QMessageBox::warning(this, tr("Edit Mash"), tr("Name empty or too short."));
	return;
    }

    if (this->textIsChanged) {
    	if (this->recno == -1) {
    	    query.prepare("INSERT INTO profile_mash SET name=:name, notes=:notes, steps=:steps, uuid=:uuid");
    	} else {
	    query.prepare("UPDATE profile_mash SET name=:name, notes=:notes, steps=:steps WHERE record=:recno");
    	}
	query.bindValue(":name", ui->nameEdit->text());
	query.bindValue(":notes", ui->notesEdit->toPlainText());
	query.bindValue(":steps", this->steps.toJson(QJsonDocument::Compact));

	if (this->recno == -1) {
	    query.bindValue(":uuid", QUuid::createUuid().toString().mid(1, 36));
	} else {
	    query.bindValue(":recno", this->recno);
	}
	query.exec();
	if (query.lastError().isValid()) {
	    qDebug() << "EditProfileMash" << query.lastError();
	    QMessageBox::warning(this, tr("Database error"),
                        tr("MySQL error: %1\n%2\n%3")
                        .arg(query.lastError().nativeErrorCode())
                        .arg(query.lastError().driverText())
                        .arg(query.lastError().databaseText()));
	} else {
	    qDebug() << "EditProfileMash Saved";
	}
    }

    ui->saveButton->setEnabled(false);
    this->textIsChanged = false;
    WindowTitle();
}


void EditProfileMash::on_deleteButton_clicked()
{
    QSqlQuery query;

    query.prepare("DELETE FROM profile_mash WHERE record = :recno");
    query.bindValue(":recno", this->recno);
    query.exec();
    if (query.lastError().isValid()) {
	qDebug() << "EditProfileMash" << query.lastError();
	QMessageBox::warning(this, tr("Database error"),
                        tr("MySQL error: %1\n%2\n%3")
                        .arg(query.lastError().nativeErrorCode())
                        .arg(query.lastError().driverText())
                        .arg(query.lastError().databaseText()));
    } else {
	qDebug() << "EditProfileMash Deleted" << this->recno;
    }

    this->close();
    this->setResult(1);
}


void EditProfileMash::is_changed()
{
    ui->saveButton->setEnabled(true);
    ui->deleteButton->setEnabled((this->recno >= 0) ? true:false);
    this->textIsChanged = true;
    WindowTitle();
}


/*
 * Rebuild the json string from the table contents.
 */
void EditProfileMash::make_Json()
{
    QTableWidgetItem *item;
    QJsonArray array;

    ui->stepsTable->sortItems(2, Qt::AscendingOrder);   // Sort on temperature.

    for (int i = 0; i < ui->stepsTable->rowCount(); i++) {

	QJsonObject obj;
	item = ui->stepsTable->item(i, 0);
	obj.insert("step_name", item->text());
	QWidget *widget = ui->stepsTable->cellWidget(i, 1);
        obj.insert("step_type", static_cast<QComboBox*>(widget)->currentIndex() );
	item = ui->stepsTable->item(i, 2);
	obj.insert("step_temp", item->text().toDouble());
	item = ui->stepsTable->item(i, 3);
        obj.insert("end_temp", item->text().toDouble());
	item = ui->stepsTable->item(i, 4);
        obj.insert("step_time", item->text().toInt());
	item = ui->stepsTable->item(i, 5);
        obj.insert("ramp_time", item->text().toInt());
//	qDebug() << "make_Json" << i << obj;
	array.append(obj);	/* Append this object */
    }

//    qDebug() << array;
    /* Copy to the global array and refresh */
    this->steps.setArray(array);
    is_changed();
    emit refreshTable();
}


void EditProfileMash::cell_Changed(int nRow, int nCol)
{
    if (this->ignoreChanges)
	return;

    qDebug() << "Cell at row " + QString::number(nRow) + " column " + QString::number(nCol) + " was changed.";

    // TODO: some checks and auto fixes.
    make_Json();
}


void EditProfileMash::combo_Changed()
{
    make_Json();
}


void EditProfileMash::on_addButton_clicked()
{
    int total = ui->stepsTable->rowCount();
    QWidget* pWidget;
    QHBoxLayout* pLayout;

    qDebug() << "Add row" << total;
    this->ignoreChanges = true;

    ui->stepsTable->insertRow(total);
    ui->stepsTable->setItem(total, 0, new QTableWidgetItem(QString("new row %1").arg(total)));
    QComboBox* myComboBox = new QComboBox();
    myComboBox->addItem(tr("Infusion"));
    myComboBox->addItem(tr("Temperature"));
    myComboBox->addItem(tr("Decoction"));
    myComboBox->setCurrentIndex(0);
    ui->stepsTable->setCellWidget(total, 1, myComboBox);
    ui->stepsTable->setItem(total, 2, new QTableWidgetItem(QString("65.0")));
    ui->stepsTable->setItem(total, 3, new QTableWidgetItem(QString("65.0")));
    ui->stepsTable->setItem(total, 4, new QTableWidgetItem(QString("20")));
    ui->stepsTable->setItem(total, 5, new QTableWidgetItem(QString("10")));
    pWidget = new QWidget();
    QPushButton* btn_edit = new QPushButton();
    btn_edit->setObjectName(QString("%1").arg(total));  /* Send row with the button */
    btn_edit->setText(tr("Delete"));
    connect(btn_edit, SIGNAL(clicked()), this, SLOT(on_deleteRow_clicked()));
    pLayout = new QHBoxLayout(pWidget);
    pLayout->addWidget(btn_edit);
    pLayout->setContentsMargins(5, 0, 5, 0);
    pWidget->setLayout(pLayout);
    ui->stepsTable->setCellWidget(total, 6, pWidget);

    this->ignoreChanges = false;
    make_Json();
}


void EditProfileMash::on_deleteRow_clicked()
{
    QPushButton *pb = qobject_cast<QPushButton *>(QObject::sender());
    int row = pb->objectName().toInt();
    qDebug() << "Delete row" << row;
    ui->stepsTable->removeRow(row);
    make_Json();
}


void EditProfileMash::on_quitButton_clicked()
{
    if (this->textIsChanged) {
	int rc = QMessageBox::warning(this, tr("Mash changed"), tr("This mash profile has been modified. Save changes?"),
                                QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel, QMessageBox::Save);
        switch (rc) {
            case QMessageBox::Save:
                        on_saveButton_clicked();
                        break;  /* Saved and then Quit */
            case QMessageBox::Discard:
                        break;  /* Quit without Save */
            case QMessageBox::Cancel:
                        return; /* Return to the editor page */
        }
    }

    this->close();
    this->setResult(1);
}