#include "PersonListWidget.h"
#include "PersonDialog.h"
#include <QPushButton>
#include <QListWidget>
#include <QHBoxLayout>
#include <QVBoxLayout>
#include <QList>

PersonListWidget::PersonListWidget()
  : personList( new QListWidget() ),
    addButton( new QPushButton ("+" ) ),
    removeButton( new QPushButton( "-" ) ),
    dialog( new PersonDialog( this ) )
{
  QVBoxLayout *vLayout = new QVBoxLayout();
  QHBoxLayout *hLayout = new QHBoxLayout();

  // Es kann nur ein Element der Liste selektiert werden.
  personList->setSelectionMode( QAbstractItemView::SingleSelection );

  // Verbindungen aufbauen
  connect( addButton, &QPushButton::clicked,
           dialog, &QDialog::open );
  connect( removeButton, &QPushButton::clicked,
           this, &PersonListWidget::removeSelectedMessage );
  connect( dialog, &PersonDialog::personSelected,
           this, &PersonListWidget::addPerson );

  // Widgets in Layout einfügen
  hLayout->addStretch();
  hLayout->addWidget( addButton );
  hLayout->addWidget( removeButton );
  vLayout->addWidget( personList );
  vLayout->addLayout( hLayout );

  setWindowTitle( "Persons" );
  setLayout( vLayout );
  resize( 400, 400 );
}


void PersonListWidget::addPerson( const Person& person )
{
  personList->addItem( person.firstName() + " " + person.lastName() + ", " +
                       QString::number( person.age() ) + ", " +
                       ( person.gender() == Gender::MALE ? "Male" : "Female" ) );
}


void PersonListWidget::removeSelectedMessage()
{
  QList<QListWidgetItem *> items = personList->selectedItems();
  delete items.first();
}