/*! @file

    @id $Id$
*/
//       1         2         3         4         5         6         7         8
// 45678901234567890123456789012345678901234567890123456789012345678901234567890
#ifndef WEBPAGE_HXX
#define WEBPAGE_HXX

#include <exceptions.hxx>
#include <networkaccessmanager.hxx>
#include <QWebPage>
#include <QWebFrame>
#include <QWebSettings>
#include <QWidget>
#include <QFileDialog>
#include <QFile>

#include <cassert>
#ifndef LOG
#include <iostream>
#define LOG(X) std::clog<<X<<std::endl;
inline std::ostream& operator<<(std::ostream& o, const QString& s) {
  return o<<s.toStdString();
}
#endif

class TestWebPage: public QWebPage {
    Q_OBJECT
  public:
    TestWebPage(QObject* parent = 0, bool unattended = false):
        QWebPage(parent),
        _unattended(unattended) {
      setNetworkAccessManager(new NetworkAccessManager(this));
      settings()->setOfflineStorageDefaultQuota(1024*1024*1024);
      settings()->setOfflineStoragePath("/tmp/");
      settings()->setAttribute(QWebSettings::OfflineStorageDatabaseEnabled, true);
      //settings()->setAttribute(QWebSettings::OfflineWebApplicationCacheEnabled, true);
      settings()->setAttribute(QWebSettings::LocalStorageEnabled, true);
    }
    
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wterminate"
    virtual ~TestWebPage() {
      if (!_nextFile.isEmpty() && !std::uncaught_exception())
        // will not call terminate(), because I check std::uncaught_exception()
        throw LastFileNotUploaded(_nextFile);
    }
#pragma GCC diagnostic pop

    void setNextUploadFile(QString nextFile) {
      if (!_unattended) throw NotUnattended();
      if (!_nextFile.isEmpty()) throw LastFileNotUploaded(_nextFile);
      if (nextFile.isEmpty()) throw EmptyUploadFile();
      _nextFile = nextFile;
    }
    bool uploadPrepared() {
      return !_nextFile.isEmpty();
    }
  Q_SIGNALS:
    void uploadFile(QString filename);
  protected:
    virtual QString chooseFile(QWebFrame* frame, const QString&) {
      if (_unattended) {
        if (_nextFile.isEmpty()) throw NoUploadFile();
        if (!QFile(_nextFile).exists()) throw FileNotFound(_nextFile);
        QString filename(_nextFile);
        _nextFile.clear();
        return filename;
      } else {
        QString filename(QFileDialog::getOpenFileName
                         (frame->page()->view(), tr("File to Upload")));
        if (filename.size()) uploadFile(filename);
        return filename;
      }
    }
    virtual void javaScriptAlert(QWebFrame* frame, const QString& msg) {
      LOG("javaScriptAlert: "+msg);
      if (_unattended) {
        return;
      } else {
        return;
        /// @todo handle javascript alerts
        //return QWebPage::javaScriptAlert(frame, msg);
      }
    }
    virtual bool javaScriptConfirm(QWebFrame* frame, const QString& msg) {
      LOG("javaScriptConfirm "+msg);
      if (_unattended) {
        return true;
      } else {
        return true;
        /// @todo handle javascript confirmations
        //return QWebPage::javaScriptConfirm(frame, msg);
      }
    }
    virtual void javaScriptConsoleMessage(const QString& msg,
                                          int line, const QString& src) {
      LOG("javaScriptConsoleMessage: "+msg);
      if (_unattended) {
        return;
      } else {
        return;
        /// @todo handle javascript console messages
        //return QWebPage::javaScriptConsoleMessage(msg, line, src);
      }
    }
    virtual bool javaScriptPrompt(QWebFrame* frame, const QString& msg,
                                  const QString& defaultValue, QString* result) {
      LOG("javaScriptPrompt: "+msg);
      if (_unattended) {
        return true;
      } else {
        return true;
        /// @todo handle javascript prompts
        //return QWebPage::javaScriptPrompt(frame, msg, defaultValue, result);
      }
    }
  private:
    bool _unattended;
    QString _nextFile;
};

#endif