#ifndef METADATA_H
#define METADATA_H

#include <QDebug>
#include <QHash>
#include <QList>
#include <QString>

// TODO add namespace

/// model data
enum UserRoles {
  NameRole = Qt::UserRole + 1,
  DescriptionRole,
  InfoRole,
  TypeRole,
  AmountRole,
  FactorRole,
  /// Non user facing
  IdRole,
  /// read only roles
  ToStringRole,
  ToJsonRole
};

static UserRoles DEFAULT_ROLE = NameRole;
// TODO ?rename USER_FACING_ROLES -> MAIN_ROLES ?
static QList<UserRoles> USER_FACING_ROLES = {NameRole, DescriptionRole, InfoRole,
                                             TypeRole, AmountRole,      FactorRole};
static QHash<int, QByteArray> ROLE_NAMES  = {
    {NameRole, "name"},         {DescriptionRole, "description"},
    {InfoRole, "info"},         {TypeRole, "type"},
    {AmountRole, "amount"},     {FactorRole, "factor"},
    {ToStringRole, "ToString"}, {IdRole, "id"}};

static QList<UserRoles> STRING_ROLES = {NameRole, DescriptionRole, InfoRole, IdRole};
static QList<UserRoles> INT_ROLES    = {AmountRole};
static QList<UserRoles> DOUBLE_ROLES = {FactorRole};

static const QList<UserRoles> TYPE_ROLES = {TypeRole};
static const QList<QString> TYPES        = {"A", "B", "C", ""};

/// JSON keys
static const QString ITEMS_KEY_STRING = "items";
static const QString ITEM_KEY_STRING  = "item";

/// file naming
static const QString ITEMS_FILE_NAME = ITEMS_KEY_STRING + ".json";

/// functions
static UserRoles GET_ROLE_FOR_COLUMN(const int column) {
  switch (column) {
    case 0:
      return NameRole;
      break;
    case 1:
      return DescriptionRole;
      break;
    case 2:
      return InfoRole;
      break;
    case 3:
      return TypeRole;
      break;
    case 4:
      return AmountRole;
      break;
    case 5:
      return FactorRole;
      break;
    default:
      qWarning() << QString("No role found for column %1! Returning 'NameRole'...").arg(column);
      return NameRole;
      break;
  }
}

static int GET_COLUMN_FOR_ROLE(const UserRoles role) { return USER_FACING_ROLES.indexOf(role); }

static QList<QString> GET_HEADER_NAMES() {
  QList<QString> result;
  for (const UserRoles& role : USER_FACING_ROLES) {
    const QString headerName = ROLE_NAMES.value(role);
    result.append(headerName);
  }
  return result;
}

static QString GET_HEADER_FOR_COLUMN(const int column) {
  const UserRoles role     = GET_ROLE_FOR_COLUMN(column);
  const QString headerName = ROLE_NAMES.value(role);
  return headerName;
}

#endif  // METADATA_H