#include "mysql_table_editor_fe.h"
#include "grtdb/db_object_helpers.h"
#include "treemodel_wrapper.h"

#include "mysql_table_editor_part_page.h"
#include <gtkmm/comboboxtext.h>
#include <gtkmm/comboboxentrytext.h>
#include <gtkmm/togglebutton.h>

//------------------------------------------------------------------------------
DbMySQLTableEditorPartPage::DbMySQLTableEditorPartPage(DbMySQLTableEditor *owner
                                                      ,MySQLTableEditorBE *be
                                                      ,Glib::RefPtr<Gtk::Builder>         xml)
                             : _owner(owner)
                             , _be(be)
                             , _xml(xml)
                             , _refreshing(false)
{
  init_widgets();

  Gtk::ToggleButton *btn;
  _xml->get_widget("enable_part_checkbutton", btn);
  btn->signal_toggled().connect(sigc::mem_fun(this, &DbMySQLTableEditorPartPage::enabled_checkbutton_toggled));
    
  _xml->get_widget("part_tv", _part_tv);
  switch_be(_be);  
  
  refresh();
}

//------------------------------------------------------------------------------
void DbMySQLTableEditorPartPage::switch_be(MySQLTableEditorBE* be)
{
  _be = be;

  _part_tv->remove_all_columns();

  _part_model = ListModelWrapper::create(_be->get_partitions(), _part_tv, "DbMySQLTableEditorPartPage");
  _part_model->model().append_string_column(MySQLTablePartitionTreeBE::Name, "Partition", EDITABLE, WITH_ICON);
  _part_model->model().append_string_column(MySQLTablePartitionTreeBE::Value, "Value", EDITABLE, NO_ICON);
  _part_model->model().append_string_column(MySQLTablePartitionTreeBE::DataDirectory, "Data Directory", EDITABLE, NO_ICON);
  _part_model->model().append_string_column(MySQLTablePartitionTreeBE::IndexDirectory, "Index Directory", EDITABLE, NO_ICON);
  _part_model->model().append_string_column(MySQLTablePartitionTreeBE::MinRows, "Min Rows", EDITABLE, NO_ICON);
  _part_model->model().append_string_column(MySQLTablePartitionTreeBE::MaxRows, "Max Rows", EDITABLE, NO_ICON);
  _part_model->model().append_string_column(MySQLTablePartitionTreeBE::Comment, "Comment", EDITABLE, NO_ICON);
  
  _part_tv->set_model(_part_model);
}

//------------------------------------------------------------------------------
void DbMySQLTableEditorPartPage::refresh()
{
  _refreshing = true;
  
  const std::string part_type = _be->get_partition_type();
  Gtk::ToggleButton *btn;
  _xml->get_widget("enable_part_checkbutton", btn);
  
  bool enabled = !(part_type.empty() || part_type == "");
  btn->set_active(enabled);

  _part_by_combo->set_sensitive(enabled);
  _part_params_entry->set_sensitive(enabled);  
  _part_count_entry->set_sensitive(enabled);
  _part_manual_checkbtn->set_sensitive(enabled);
  
  _subpart_by_combo->set_sensitive(enabled);
  _subpart_params_entry->set_sensitive(enabled);  
  _subpart_count_entry->set_sensitive(_be->subpartition_count_allowed());
  _subpart_manual_checkbtn->set_sensitive(enabled);

  if ( enabled )
  {
    set_selected_combo_item(_part_by_combo, _be->get_partition_type());
    _part_params_entry->set_text(_be->get_partition_expression());
    _part_manual_checkbtn->set_active(_be->get_explicit_partitions());

    char buf[32];
    snprintf(buf, sizeof(buf)/sizeof(*buf), "%i", _be->get_partition_count());
    _part_count_entry->set_text(buf);

    set_selected_combo_item(_subpart_by_combo, _be->get_subpartition_type());
    _subpart_params_entry->set_text(_be->get_subpartition_expression());
    _subpart_manual_checkbtn->set_active(_be->get_explicit_subpartitions());

    snprintf(buf, sizeof(buf)/sizeof(*buf), "%i", _be->get_subpartition_count());
    _subpart_count_entry->set_text(buf);
  }

  _part_tv->unset_model();
  _part_model->refresh();
  _part_tv->set_model(_part_model);

  _refreshing = false;
}

//------------------------------------------------------------------------------
void DbMySQLTableEditorPartPage::init_widgets()
{
  // Init subpart combo
  _xml->get_widget("subpart_by_combo", _subpart_by_combo);
  std::vector<std::string> list;
  list.push_back("Disable");
  list.push_back("HASH");
  list.push_back("LINEAR HASH");
  list.push_back("KEY");
  list.push_back("LINEAR KEY");
  setup_combo_for_string_list(_subpart_by_combo);
  fill_combo_from_string_list(_subpart_by_combo, list);
#if GTK_VERSION_GT(2, 10)
  _subpart_by_combo->set_tooltip_text("Function that is used to determine the partition.");
#endif

  list.clear();
  _xml->get_widget("part_by_combo", _part_by_combo);
  list.push_back("HASH");
  list.push_back("LINEAR HASH");
  list.push_back("KEY");
  list.push_back("LINEAR KEY");
  list.push_back("RANGE");
  list.push_back("LIST");
  setup_combo_for_string_list(_part_by_combo);
  fill_combo_from_string_list(_part_by_combo, list);
#if GTK_VERSION_GT(2, 10)
  _part_by_combo->set_tooltip_text("Function that is used to determine the partition.");
#endif
  _xml->get_widget("part_params_entry", _part_params_entry);
#if GTK_VERSION_GT(2, 10)
  _part_params_entry->set_tooltip_text("The expression or column list used by the function to determine the partition.");
#endif
  _owner->add_entry_change_timer(_part_params_entry, sigc::mem_fun(this, &DbMySQLTableEditorPartPage::set_part_params_to_be));

  _xml->get_widget("subpart_params_entry", _subpart_params_entry);
#if GTK_VERSION_GT(2, 10)
  _subpart_params_entry->set_tooltip_text("The expression or column list used by the function to determine the partition.");
#endif
  _owner->add_entry_change_timer(_subpart_params_entry, sigc::mem_fun(this, &DbMySQLTableEditorPartPage::set_subpart_params_to_be));
  
  _xml->get_widget("part_manual_checkbtn", _part_manual_checkbtn);
#if GTK_VERSION_GT(2, 10)
  _part_manual_checkbtn->set_tooltip_text("Check to manually specify partitioning ranges/values.");
#endif
  _xml->get_widget("subpart_manual_checkbtn", _subpart_manual_checkbtn);
#if GTK_VERSION_GT(2, 10)
  _subpart_manual_checkbtn->set_tooltip_text("Check to manually specify partitioning ranges/values.");
#endif

  _xml->get_widget("part_count_entry", _part_count_entry);
  _part_count_entry->property_width_request() = 96;
  _part_count_entry->signal_changed().connect(sigc::mem_fun(this, &DbMySQLTableEditorPartPage::part_count_changed));

  _xml->get_widget("subpart_count_entry", _subpart_count_entry);
  _subpart_count_entry->signal_changed().connect(sigc::mem_fun(this, &DbMySQLTableEditorPartPage::subpart_count_changed));
  _subpart_count_entry->property_width_request() = 96;

  _subpart_by_combo->signal_changed().connect(sigc::mem_fun(this, &DbMySQLTableEditorPartPage::subpart_function_changed));
  _part_by_combo->signal_changed().connect(sigc::mem_fun(this, &DbMySQLTableEditorPartPage::part_function_changed));

  _part_manual_checkbtn->signal_toggled().connect(sigc::mem_fun(this, &DbMySQLTableEditorPartPage::part_manual_toggled));
  _subpart_manual_checkbtn->signal_toggled().connect(sigc::mem_fun(this, &DbMySQLTableEditorPartPage::subpart_manual_toggled));
}

//------------------------------------------------------------------------------
void DbMySQLTableEditorPartPage::enabled_checkbutton_toggled()
{
  if (!_refreshing)
  {
    Gtk::ToggleButton *btn;
    _xml->get_widget("enable_part_checkbutton", btn);
    bool enabled = btn->get_active();
    
    // Enable/disable widgets according to state of the "enable partition" check button.
    // simply passing the main enabling button state to widgets
    _part_by_combo->set_sensitive(enabled);
    _part_params_entry->set_sensitive(enabled);  
    _part_count_entry->set_sensitive(enabled);
    _part_manual_checkbtn->set_sensitive(enabled);
    
    if ( enabled )
    {
      if ( _be->get_partition_type() == "" )
      {
        _be->set_partition_type("HASH");
        part_function_changed();
      }
    }
    else
      _be->set_partition_type("");
  
    const std::string part_function = get_selected_combo_item(_part_by_combo);
    if ( part_function == "" || !( part_function == "RANGE" || part_function == "LIST"))
      enabled = false;
  
    _subpart_by_combo->set_sensitive(_be->subpartition_count_allowed());
    _subpart_params_entry->set_sensitive(_be->subpartition_count_allowed());
    _subpart_count_entry->set_sensitive(_be->subpartition_count_allowed());
    _subpart_manual_checkbtn->set_sensitive(_be->subpartition_count_allowed());
  
    _owner->add_entry_change_timer(_part_params_entry, sigc::mem_fun(this, &DbMySQLTableEditorPartPage::set_part_params_to_be));
    _owner->add_entry_change_timer(_subpart_params_entry, sigc::mem_fun(this, &DbMySQLTableEditorPartPage::set_subpart_params_to_be));
  }
}

//------------------------------------------------------------------------------
void DbMySQLTableEditorPartPage::part_function_changed()
{
  if (!_refreshing)
  {
    const std::string part_function = get_selected_combo_item(_part_by_combo);
  
    if ( part_function == "")
    {
      set_selected_combo_item(_part_by_combo, _be->get_partition_type());
      return;
    }
  
    if ( part_function != _be->get_partition_type())
    {
      if ( ! _be->set_partition_type(part_function) )
      {
        set_selected_combo_item(_part_by_combo, _be->get_partition_type());
        return;
      }
    }
    
    if (_be->subpartition_count_allowed())
    {
      _subpart_by_combo->set_sensitive(true);
      _subpart_params_entry->set_sensitive(true);
      _subpart_count_entry->set_sensitive(true);
      _subpart_manual_checkbtn->set_sensitive(true);
    }
    else
    {
      _subpart_by_combo->set_sensitive(false);
      _subpart_params_entry->set_sensitive(false);
      _subpart_count_entry->set_sensitive(false);
      _subpart_manual_checkbtn->set_sensitive(false);
    }
  }
}

//------------------------------------------------------------------------------
void DbMySQLTableEditorPartPage::subpart_function_changed()
{
  if (!_refreshing)
  {
    const std::string subpart_function = get_selected_combo_item(_subpart_by_combo);
  
    if ( subpart_function != _be->get_subpartition_type() )
    {
      if ( subpart_function == "" || !_be->set_subpartition_type(subpart_function) )
      {
        set_selected_combo_item(_subpart_by_combo, _be->get_subpartition_type());
      }
    }
  }
}

//------------------------------------------------------------------------------
void DbMySQLTableEditorPartPage::set_part_params_to_be(const std::string& value)
{
  _be->set_partition_expression(value);
}

//------------------------------------------------------------------------------
void DbMySQLTableEditorPartPage::set_subpart_params_to_be(const std::string& value)
{
  _be->set_subpartition_expression(value);
}

//------------------------------------------------------------------------------
void DbMySQLTableEditorPartPage::part_count_changed()
{
  const std::string count = _part_count_entry->get_text();
  if ( !count.empty() )
  {
    _be->set_partition_count(atoi(count.c_str()));
  }
}

//------------------------------------------------------------------------------
void DbMySQLTableEditorPartPage::subpart_count_changed()
{
  const std::string& count = _subpart_count_entry->get_text();
  if ( !count.empty() )
  {
    _be->set_subpartition_count(atoi(count.c_str()));
  }
}

//------------------------------------------------------------------------------
void DbMySQLTableEditorPartPage::part_manual_toggled()
{
  _be->set_explicit_partitions(_part_manual_checkbtn->get_active());
  char buf[32];
  snprintf(buf, sizeof(buf)/sizeof(*buf), "%i", _be->get_partition_count());
  _part_count_entry->set_text(buf);
  refresh();
}

//------------------------------------------------------------------------------
void DbMySQLTableEditorPartPage::subpart_manual_toggled()
{
  _be->set_explicit_subpartitions(_subpart_manual_checkbtn->get_active());
  char buf[32];
  snprintf(buf, sizeof(buf)/sizeof(*buf), "%i", _be->get_subpartition_count());
  _subpart_count_entry->set_text(buf);
  refresh();
}
