#include "volumes_model.h"

#include <QtScript>


VolumesModel::VolumesModel(QObject *parent) :
	JSONModel(parent)
{
}

VolumesModel::~VolumesModel()
{
	//std::for_each(_data.begin(), _data.end(), [](QList<QString> * ptr) { delete ptr; });
}

void VolumesModel::load(const QString &json)
{
	QScriptEngine engine;
	QScriptValue sc;
	sc = engine.evaluate("(" + json + ")");

	if (!sc.property("error").isValid() && sc.property("error").toString() != "OK")
	{
		qDebug("Error detected");
	}
	else
	{
		int numResults = sc.property("number_of_total_results").toString().toInt(); //fix to weird behaviour using hasNext
		QScriptValueIterator it(sc.property("results"));
		bool test;
		QScriptValue resultsValue;
		while (it.hasNext()) {
			it.next();
			resultsValue = it.value();
			QString numIssues = resultsValue.property("count_of_issues").toString();
			QString year = resultsValue.property("start_year").toString();
			QString name = resultsValue.property("name").toString();
			QString publisher = resultsValue.property("publisher").property("name").toString();
			QString url = resultsValue.property("image").property("medium_url").toString();
			QString deck = resultsValue.property("deck").toString();
			QString id = resultsValue.property("id").toString();
			QStringList l;
			l << name << year << numIssues << publisher << url << deck << id;
			test = name.isEmpty() && year.isEmpty() && numIssues.isEmpty() && url.isEmpty();
			if(numResults>0 && !test)
				_data.push_back(l);
			numResults--;
		}
	}
}

QModelIndex VolumesModel::parent(const QModelIndex &index) const
{
	Q_UNUSED(index)
	return QModelIndex(); //no parent
}

int VolumesModel::rowCount(const QModelIndex &parent) const
{
	Q_UNUSED(parent)
	return _data.count();
}

int VolumesModel::columnCount(const QModelIndex &parent) const
{
	Q_UNUSED(parent)
	if(_data.isEmpty())
		return 0;
	else
		return 4;//_data.at(0)->count();
}

QVariant VolumesModel::data(const QModelIndex &index, int role) const
{
	if (!index.isValid())
		return QVariant();

	if (role == Qt::DecorationRole)
	{
        return QVariant();
	}

    int row = index.row();
    int column = index.column();

	if (role == Qt::TextAlignmentRole)
	{
        switch(column)
        {
        case YEAR:
            return QVariant(Qt::AlignRight | Qt::AlignVCenter);
        case ISSUES:
            return QVariant(Qt::AlignRight | Qt::AlignVCenter);
        default:
            return QVariant(Qt::AlignLeft | Qt::AlignVCenter);
        }
	}

    if(role != Qt::DisplayRole)
		return QVariant();

    if (column == YEAR || column == ISSUES)
    {
        return _data[row][column].toInt();
    }
    else
    {
        return _data[row][column];
    }
}

Qt::ItemFlags VolumesModel::flags(const QModelIndex &index) const
{
	if (!index.isValid())
		return 0;
	return Qt::ItemIsEnabled | Qt::ItemIsSelectable;
}

QVariant VolumesModel::headerData(int section, Qt::Orientation orientation, int role) const
{

	if (orientation == Qt::Horizontal && role == Qt::DisplayRole)
	{
		switch(section)//TODO obtener esto de la query
		{
		case SERIES:
			return QVariant(QString("series"));
		case YEAR:
			return QVariant(QString(tr("year")));
		case ISSUES:
			return QVariant(QString(tr("issues")));
		case PUBLISHER:
            return QVariant(QString(tr("publisher")));
		}
	}

	if (orientation == Qt::Horizontal && role == Qt::TextAlignmentRole)
	{
		switch(section)//TODO obtener esto de la query
		{
		case YEAR:
			return QVariant(Qt::AlignRight | Qt::AlignVCenter);
		case ISSUES:
			return QVariant(Qt::AlignRight | Qt::AlignVCenter);
        default:
            return QVariant(Qt::AlignLeft | Qt::AlignVCenter);
		}
	}

	return QVariant();
}

QModelIndex VolumesModel::index(int row, int column, const QModelIndex &parent) const
{
	if (!hasIndex(row, column, parent))
		return QModelIndex();

	return createIndex(row, column);
}

QString VolumesModel::getVolumeId(const QModelIndex &index) const
{
    return _data[index.row()][ID];
}

int VolumesModel::getNumIssues(const QModelIndex &index) const
{
    return _data[index.row()][ISSUES].toInt();
}

QString VolumesModel::getPublisher(const QModelIndex &index) const
{
    return _data[index.row()][PUBLISHER];
}

QString VolumesModel::getCoverURL(const QModelIndex &index) const
{
	return _data[index.row()][COVER_URL];
}