#include <QNetworkRequest>
#include <QNetworkAccessManager>
#include <QNetworkReply>
#include <QDomDocument>
#include <QDomElement>
#include <QWebFrame>
#include <QWebPage>
#include <QEventLoop>
#include <QApplication>
#include <math.h>
#include "map.h"
#include "ui_showmap.h"

Map::Map(QWidget *parent) : QWebView(parent), pendingRequests(0) {
    manager = new QNetworkAccessManager(this);
    connect(manager, SIGNAL(finished(QNetworkReply*)), this, SLOT(replyFinished(QNetworkReply*)));
    connect(this, SIGNAL(reloadMap()), this,SLOT(loadCoordinates()));
}

void Map::geoCode(QString local) {
    clearCoordinates();
    QString requestStr(tr("http://maps.google.com/maps/geo?q=%1&output=%2&key=%3")
           .arg(local)
           .arg("csv")
           .arg("GOOGLE_MAPS_KEY"));
    manager->get(QNetworkRequest(requestStr));
    ++pendingRequests;
}

void Map::replyFinished(QNetworkReply *reply) {
    QString replyStr(reply->readAll());
    QStringList coordinateStrList = replyStr.split(",");
    if (coordinateStrList.size() == 4) {
        QPointF coordinate(coordinateStrList[2].toFloat(),coordinateStrList[3].toFloat());
        coordinates << coordinate;
    }
    --pendingRequests;
    if (pendingRequests < 1) {
        emit(reloadMap());
    }
}

void Map::loadCoordinates() {
    foreach (QPointF point, coordinates) {
        this->page()->mainFrame()->evaluateJavaScript(
                QString("Open(%1,%2)").arg(point.x()).arg(point.y()));
    }
}

void Map::clearCoordinates() {
    coordinates.clear();
}