#include "lineeditdelegate.h"

#include <QCompleter>
#include <QTreeView>

#include "domitem.h"
#include "dommodel.h"
#include "editortab.h"
#include "editortabswidget.h"

extern EditorTabsWidget* tabWidget;
QLineEdit* lineEdit;
void setTextCompleter(QLineEdit* editor);

LineEditDelegate::LineEditDelegate(QObject* parent) { Q_UNUSED(parent); }

QWidget* LineEditDelegate::createEditor(QWidget* parent,
                                        const QStyleOptionViewItem& /*option*/,
                                        const QModelIndex& /*index*/) const {
  EditorTab* tab = tabWidget->getCurentTab();
  DomModel* model = tab->getModel();
  QModelIndex index = tab->currentIndex();
  DomItem* item = model->itemForIndex(index);

  if (index.column() == 1) {
    return 0;
  }

  //父节点的数组和字典值，不允许编辑
  if (index.column() == 2 &&
      (item->getType() == "array" || item->getType() == "dict"))
    return 0;

  if (index.column() == 2 && item->getType() == "bool") return 0;

  if (index.data().toString() == "plist") return 0;

  QLineEdit* editor = new QLineEdit(parent);

  return editor;
}

void LineEditDelegate::setEditorData(QWidget* editor,
                                     const QModelIndex& index) const {
  lineEdit = static_cast<QLineEdit*>(editor);
  connect(lineEdit, &QLineEdit::editingFinished, this,
          &LineEditDelegate::on_setText);
  connect(lineEdit, &QLineEdit::textChanged, this,
          &LineEditDelegate::on_textChanged);

  QString value = index.data().toString();

  EditorTab* tab = tabWidget->getCurentTab();
  DomModel* model = tab->getModel();
  DomItem* item = model->itemForIndex(index);

  if (item->getType() == "string") setTextCompleter(lineEdit);

  if (item->getType() == "data" && index.column() == 2) {
    QRegExp regx("[A-Fa-f0-9- ]{2,1024}");
    QValidator* validator = new QRegExpValidator(regx, lineEdit);
    lineEdit->setValidator(validator);
    lineEdit->setPlaceholderText(tr("Hexadecimal"));
  }

  if (item->getType() == "date" && index.column() == 2) {
    if (value == "")
      value = QDate::currentDate().toString("yyyy-MM-ddT") +
              QTime::currentTime().toString("hh:mm:ssZ");
  }

  lineEdit->setText(value);
  tab->treeView->resizeColumnToContents(0);
}

void LineEditDelegate::setModelData(QWidget* editor, QAbstractItemModel* model,
                                    const QModelIndex& index) const {
  Q_UNUSED(editor);

  // get old val form the model
  QString oldVal = model->data(index).toString();

  // get new val from editor
  QString newVal = lineEdit->text();

  // get index of type item
  QModelIndex typeIndex = model->index(index.row(), 1, index.parent());

  // get type val
  QString type = model->data(typeIndex).toString();

  // check new value
  QString val = (checkInput(type, newVal, index.column())) ? newVal : oldVal;

  // set data
  // model->setData(index, val, Qt::EditRole);
  if (newVal != oldVal) emit dataChanged(index, val);
}

void LineEditDelegate::updateEditorGeometry(QWidget* editor,
                                            const QStyleOptionViewItem& option,
                                            const QModelIndex& index) const {
  Q_UNUSED(index);
  editor->setGeometry(option.rect);
}

bool LineEditDelegate::checkInput(const QString& type, const QString& val,
                                  int col) {
  bool ok;
  if (col != 2)
    ok = true;
  else {
    if (type == "integer") {
      val.toLongLong(&ok);
    } else {
      if (type == "real") {
        val.toFloat(&ok);
      } else {
        // we shouldn`t edit values of a dict or array
        ok = ((type == "array" || type == "dict") && col == 2) ? false : true;
      }
    }
  }

  // array
  EditorTab* tab = tabWidget->getCurentTab();
  DomModel* model = tab->getModel();
  const QModelIndex index = tab->currentIndex();
  DomItem* item = model->itemForIndex(index.parent());
  if (item->getType() == "array" && col == 0) {
    QString str = val.mid(4, val.length() - 4);

    if (val.mid(0, 5) != "Item " || !str.toInt() || str.toInt() == 0) return 0;
  }

  if (type == "date") {
    QDateTime date = QDateTime::fromString(val);
    if (!date.isValid()) {
    }
  }

  if (type == "data" && col == 2) {
    if (val.trimmed().count() % 2 != 0) return 0;
  }

  if (val.trimmed() == "plist") return 0;

  if (val.trimmed().mid(0, 4) == "Item" && item->getType() != "array") return 0;

  return ok;
}

//行高(以此为准)
QSize LineEditDelegate::sizeHint(const QStyleOptionViewItem& option,
                                 const QModelIndex& index) const {
  QSize size = QStyledItemDelegate::sizeHint(option, index);

#ifdef Q_OS_WIN32
  size.setHeight(size.height() + 4);

#endif

#ifdef Q_OS_LINUX
  size.setHeight(size.height() + 4);

#endif

#ifdef Q_OS_MAC
  size.setHeight(size.height() + 6);

#endif

  return size;
}

void setTextCompleter(QLineEdit* editor) {
  QStringList textList;

  textList.append("Any");
  textList.append("i386");
  textList.append("x86_64");
  textList.append("layout-id");
  textList.append("Auto");
  textList.append("i386-user32");
  textList.append("Cacheless");
  textList.append("Mkext");
  textList.append("Prelinked");
  textList.append("None");
  textList.append("RTC");
  textList.append("NVRAM");
  textList.append("Disabled");
  textList.append("Full");
  textList.append("Short");
  textList.append("Default");
  textList.append("Builtin");
  textList.append("External");
  textList.append("Apple");
  textList.append("Old");
  textList.append("Modern");
  textList.append("Signed");
  textList.append("Secure");
  textList.append("Optional");
  textList.append("Basic");
  textList.append("Create");
  textList.append("TryOverwrite");
  textList.append("Overwrite");
  textList.append("Custom");
  textList.append("Upgradable");
  textList.append("Soldered");
  textList.append("Enabled");
  textList.append("V1");
  textList.append("V2");
  textList.append("AMI");
  textList.append("ASUS");
  textList.append("Max");
  textList.append("BuiltinGraphics");
  textList.append("SystemGraphics");
  textList.append("SystemText");
  textList.append("SystemGeneric");
  textList.append("System");
  textList.append("OEM");
  textList.append("Reserved");
  textList.append("LoaderCode");
  textList.append("LoaderData");
  textList.append("BootServiceCode");
  textList.append("BootServiceData");
  textList.append("RuntimeCode");
  textList.append("RuntimeData");
  textList.append("Available");
  textList.append("Persistent");
  textList.append("UnusableMemory");
  textList.append("ACPIReclaimMemory");
  textList.append("ACPIMemoryNVS");
  textList.append("MemoryMappedIO");
  textList.append("MemoryMappedIOPortSpace");
  textList.append("PalCode");

  QCompleter* editCompleter = new QCompleter(textList);
  editCompleter->setCaseSensitivity(Qt::CaseSensitive);
  editCompleter->setCompletionMode(QCompleter::PopupCompletion);
  editor->setCompleter(editCompleter);
}

void LineEditDelegate::on_setText() {
  EditorTab* tab = tabWidget->getCurentTab();
  DomModel* model = tab->getModel();
  QModelIndex index = tab->currentIndex();
  DomItem* item = model->itemForIndex(index);

  if (item->getType() == "data" && index.column() == 2) {
    QString str = lineEdit->text();
    lineEdit->setText(str.toUpper());
  }
}

void LineEditDelegate::on_textChanged() {}