/*
 * © Copyright 2014 – Urheberrechtshinweis
 * Alle Rechte vorbehalten / All Rights Reserved
 *
 * Programmcode ist urheberrechtlich geschuetzt.
 * Das Urheberrecht liegt, soweit nicht ausdruecklich anders gekennzeichnet, bei Frank Ebner.
 * Keine Verwendung ohne explizite Genehmigung.
 * (vgl. § 106 ff UrhG / § 97 UrhG)
 */

#ifndef EDITFIELDS_H
#define EDITFIELDS_H

#include "fixC11.h"

#include <QGridLayout>
#include <QLabel>
#include <QPushButton>
#include <QLineEdit>
#include <QComboBox>
#include <QCheckBox>
#include <QFileDialog>

#include "../mapview/model/IHasParams.h"

class EditFields {

public:

	static void get(QWidget* parent, int& r, QGridLayout* lay, IHasParams* elem) {

		for(int i = 0; i < elem->getNumParams(); ++i) {

			const Param param = elem->getParamDesc(i);
			const ParamValue value = elem->getParamValue(i);

			// skip Not-Available entries
			if (param.type == ParamType::NOT_AVAILABLE) {continue;}

			lay->addWidget(new QLabel(param.name.c_str()),r,0);

			switch(param.type) {

				case ParamType::NOT_AVAILABLE:
					break;

				case ParamType::ENUM: {
					QComboBox* cmb = new QComboBox(parent);
					int idx = 0;
					for (const std::string& str : param.getEnumValues()) {cmb->addItem(str.c_str(), idx++);}
					cmb->setCurrentIndex(value.toInt());
					cmb->connect(cmb, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), [i, elem, cmb] (int idx) {
						(void) idx;
						elem->setParamValue(i, cmb->currentData().toInt() );
					});
					lay->addWidget(cmb,r,1);
					break;
				}

				case ParamType::BOOL: {
					QCheckBox* chk = new QCheckBox(parent);
					chk->setChecked(value.toBool());
					if (param.readOnly) {
						chk->setEnabled(false);
					} else {
						chk->connect(chk, &QCheckBox::clicked, [i,elem] (const bool checked) {
							elem->setParamValue(i, ParamValue(checked));
						});
					}
					lay->addWidget(chk,r,1);
					break;
				}

				case ParamType::FLOAT: {
					const std::string str = std::to_string(value.toFloat());
					if (param.readOnly) {
						lay->addWidget(new QLabel(str.c_str(), parent),r,1);
					} else {
						QLineEdit* le = new QLineEdit(str.c_str(), parent);
						le->connect(le, &QLineEdit::textChanged, [i,elem] (const QString& str) {
							const float val = str.toFloat();
							elem->setParamValue(i, ParamValue(val));
						});
						lay->addWidget(le,r,1);
					}
					break;
				}

				case ParamType::DOUBLE: {
					const std::string str = std::to_string(value.toDouble());
					if (param.readOnly) {
						lay->addWidget(new QLabel(str.c_str(), parent),r,1);
					} else {
						QLineEdit* le = new QLineEdit(str.c_str(), parent);
						le->connect(le, &QLineEdit::textChanged, [i,elem] (const QString& str) {
							const double val = str.toDouble();
							elem->setParamValue(i, ParamValue(val));
						});
						lay->addWidget(le,r,1);
					}
					break;
				}

				case ParamType::INT: {
					const std::string str = std::to_string(value.toInt());
					QLineEdit* le = new QLineEdit(str.c_str(), parent);
					le->connect(le, &QLineEdit::textChanged, [i,elem] (const QString& str) {
						const int val = str.toInt();
						elem->setParamValue(i, ParamValue(val));
					});
					lay->addWidget(le,r,1);
					break;
				}

				case ParamType::STRING: {
					const std::string str = value.toString();
					QLineEdit* le = new QLineEdit(str.c_str(), parent);
					le->connect(le, &QLineEdit::textChanged, [i,elem] (const QString& str) {
						elem->setParamValue(i, ParamValue(str.toStdString()));
					});
					lay->addWidget(le,r,1);
					break;
				}

				case ParamType::FILE: {
					const std::string str = value.toString();
					QLabel* lblFile = new QLabel(str.c_str(), parent);
					QPushButton* btn = new QPushButton("<",parent);
					btn->setMaximumSize(32,32);
					btn->connect(btn, &QPushButton::clicked, [i,elem,lblFile] (const bool checked) {
						(void) checked;
						QString res = QFileDialog::getOpenFileName();
						elem->setParamValue(i, ParamValue(res.toStdString()));
						lblFile->setText(res);
					});
					lay->addWidget(lblFile,r,1);
					lay->addWidget(btn,r,2);
					break;
				}

				case ParamType::POINT2: {
					const Point2 p2 = value.toPoint2();
					QWidget* subWidget = new QWidget(parent);
					QGridLayout* laySub = new QGridLayout(subWidget); laySub->setMargin(0);
					QLineEdit* txtX = new QLineEdit(QString::number(p2.x), subWidget);
					QLineEdit* txtY = new QLineEdit(QString::number(p2.y), subWidget);
					laySub->addWidget(txtX,0,0);
					laySub->addWidget(txtY,0,1);
					lay->addWidget(subWidget,r,1);
					auto onChange = [i,elem,txtX,txtY] (const QString& str) {
						(void) str;
						elem->setParamValue(i, ParamValue( Point2(txtX->text().toFloat(), txtY->text().toFloat()) ));
					};
					txtX->connect(txtX, &QLineEdit::textChanged, onChange);
					txtY->connect(txtY, &QLineEdit::textChanged, onChange);
					break;
				}

				case ParamType::POINT3: {
					const Point3 p3 = value.toPoint3();
					QWidget* subWidget = new QWidget(parent);
					QGridLayout* laySub = new QGridLayout(subWidget); laySub->setMargin(0);
					QLineEdit* txtX = new QLineEdit(QString::number(p3.x), subWidget);
					QLineEdit* txtY = new QLineEdit(QString::number(p3.y), subWidget);
					QLineEdit* txtZ = new QLineEdit(QString::number(p3.z), subWidget);
					laySub->addWidget(txtX,0,0);
					laySub->addWidget(txtY,0,1);
					laySub->addWidget(txtZ,0,2);
					lay->addWidget(subWidget,r,1);
					auto onChange = [i,elem,txtX,txtY,txtZ] (const QString& str) {
						(void) str;
						elem->setParamValue(i, ParamValue( Point3(txtX->text().toFloat(), txtY->text().toFloat(), txtZ->text().toFloat()) ));
					};
					txtX->connect(txtX, &QLineEdit::textChanged, onChange);
					txtY->connect(txtY, &QLineEdit::textChanged, onChange);
					txtZ->connect(txtZ, &QLineEdit::textChanged, onChange);
					break;
				}




			}

			++r;

		}

	}

};

#endif // EDITFIELDS_H