File: multi_source_selector_page.h

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/*
 * Copyright (c) 2009, 2013, Oracle and/or its affiliates. All rights reserved.
 *
 * This program 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; version 2 of the
 * License.
 *
 * This program 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, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301  USA
 */

#include "data_source_selector_page.h"
#include "grtui/grt_wizard_form.h"

class MultiSourceSelectPage : public WizardPage
{
private:
  DataSourceSelector _left;
  DataSourceSelector _right;
  DataSourceSelector _result;
  bool _has_result;

  void left_changed()
  {
    if (_left.model_radio->get_active())
      _right.model_radio->set_enabled(false);
    else
      _right.model_radio->set_enabled(true);

    _left.file_selector.set_enabled(_left.file_radio->get_active());
  }

  void right_changed()
  {
    if (_right.model_radio->get_active())
      _left.model_radio->set_enabled(false);
    else
      _left.model_radio->set_enabled(true);

    _right.file_selector.set_enabled(_right.file_radio->get_active());

    if (_has_result)
    {
      _result.server_radio->set_enabled(_right.server_radio->get_active());
      if (!_right.server_radio->get_active())
        _result.file_radio->set_active(true);
    }
  }

  inline DataSourceSelector::SourceType source_for_name(std::string s, const std::string &default_name)
  {
    if (s.empty())
      s = default_name;

    if (s == "model")
      return DataSourceSelector::ModelSource;
    else if (s == "server")
      return DataSourceSelector::ServerSource;
    else
      return DataSourceSelector::FileSource;
  }

  virtual void enter(bool advancing)
  {
    if (advancing)
    {
      _left.set_source(source_for_name(wizard()->grtm()->get_app_option_string("db.mysql.synchronizeAny:left_source"), "model"));
      _right.set_source(source_for_name(wizard()->grtm()->get_app_option_string("db.mysql.synchronizeAny:right_source"), "server"));
      if (_has_result)
        _result.set_source(source_for_name(wizard()->grtm()->get_app_option_string("db.mysql.synchronizeAny:result"), "server"));

      _left.file_selector.set_filename(wizard()->grtm()->get_app_option_string("db.mysql.synchronizeAny:left_source_file"));
      _right.file_selector.set_filename(wizard()->grtm()->get_app_option_string("db.mysql.synchronizeAny:right_source_file"));
      if (_has_result)
        _result.file_selector.set_filename(wizard()->grtm()->get_app_option_string("db.mysql.synchronizeAny:result_file"));
    }
  }

  virtual bool advance()
  {
    const char *sources[]= {
      "model", "server", "file"
    };

    // Remember defaults
    wizard()->grtm()->set_app_option("db.mysql.synchronizeAny:left_source", grt::StringRef(sources[get_left_source()]));
    wizard()->grtm()->set_app_option("db.mysql.synchronizeAny:right_source", grt::StringRef(sources[get_right_source()]));
    if (_has_result)
      wizard()->grtm()->set_app_option("db.mysql.synchronizeAny:result", grt::StringRef(sources[get_result()]));
    wizard()->grtm()->set_app_option("db.mysql.synchronizeAny:left_source_file", grt::StringRef(_left.file_selector.get_filename()));
    wizard()->grtm()->set_app_option("db.mysql.synchronizeAny:right_source_file", grt::StringRef(_right.file_selector.get_filename()));
    if (_has_result)
      wizard()->grtm()->set_app_option("db.mysql.synchronizeAny:result_file", grt::StringRef(_result.file_selector.get_filename()));

    values().gset("left_source", sources[get_left_source()]);
    values().gset("right_source", sources[get_right_source()]);
    if (_has_result)
    {
      values().gset("result", get_result());
      values().gset("result_path", _result.file_selector.get_filename());
    }
    values().gset("left_source_file", _left.file_selector.get_filename());
    values().gset("right_source_file", _right.file_selector.get_filename());


    bool ret_val = true;
    std::string msg;
    if (_has_result)
    {
      _result.file_selector.get_filename();
      if ((get_result() == DataSourceSelector::FileSource) && (!_result.file_selector.check_and_confirm_file_overwrite()  || _result.file_selector.get_filename().empty()))
      {
        ret_val = false;
        if (_result.file_selector.get_filename().empty())
        {
          msg += "You didn't specify the result file, please select one.\n";
        }
        else
        {
          msg += "Result File: ";
          msg += _result.file_selector.get_filename();
          msg += " cannot be found, please check the path.\n";
        }
      }
    }


    if (get_left_source() == DataSourceSelector::FileSource
        && !g_file_test(_left.file_selector.get_filename().c_str(), G_FILE_TEST_EXISTS))
    {
      ret_val = false;
      if (_left.file_selector.get_filename().empty())
      {
        msg += "You didn't specify the source file, please select one.\n";
      }
      else
      {
        msg += "Source File: ";
        msg += _left.file_selector.get_filename();
        msg += " cannot be found, please check the path.\n";
      }
    }

    if (get_right_source() == DataSourceSelector::FileSource
        && !g_file_test(_right.file_selector.get_filename().c_str(), G_FILE_TEST_EXISTS))
    {
      ret_val = false;
      if (_right.file_selector.get_filename().empty())
      {
        msg += "You didn't specify the destination file, please select one.";
      }
      else
      {
        msg += "Dest File: ";
        msg += _right.file_selector.get_filename();
        msg += " cannot be found, please check the path.";
      }
    }
    if (!ret_val)
    {
      mforms::Utilities::show_error(_("File not found"), msg, _("OK"));
    }

    return ret_val;
  }

public:
  MultiSourceSelectPage(WizardForm *form, bool include_result)
  : WizardPage(form, "source"), _result(true), _has_result(include_result)
  {
    set_title(_("Select Databases for Updates"));
    set_short_title(_("Select Sources"));

    mforms::Label info_label;
    info_label.set_wrap_text(true);
    info_label.set_style(mforms::SmallStyle);
    info_label.set_text(_("Select the source and destination databases to be compared. The script needed to alter the source schema to match destination will be executed in the destination server or written to the output script file, as selected."));

    add(&info_label,false,true);

    add(&_left.panel, false, false);
    add(&_right.panel, false, false);
    if (include_result)
      add(&_result.panel, false, false);

    _left.panel.set_title(_("Source – Database To Take Updates From"));

    _left.set_change_slot(boost::bind(&MultiSourceSelectPage::left_changed, this));
    _right.set_change_slot(boost::bind(&MultiSourceSelectPage::right_changed, this));

    _left.model_radio->set_active(true);
    _right.model_radio->set_enabled(false);
    _right.server_radio->set_active(true);

    _left.file_source_selected();
    _right.file_source_selected();
    _right.panel.set_title(_("Destination – Database To Receive Updates"));

    if (include_result)
    {
      _result.panel.set_title(_("Send Updates To:"));
      _result.model_radio->show(false);
      _result.server_radio->set_text("Destination Database Server");
      _result.file_radio->set_text("ALTER Script File:");
      //TODO: add Source Model
      _result.server_radio->set_active(true);
    }
  }

  DataSourceSelector::SourceType get_left_source() { return _left.get_source(); }
  DataSourceSelector::SourceType get_right_source() { return _right.get_source(); }
  DataSourceSelector::SourceType get_result() { return _result.get_source(); }
};