/***********************************************************************
*
* Copyright (c) 2012-2015 Barbara Geller
* Copyright (c) 2012-2015 Ansel Sermersheim
* Copyright (c) 2012-2014 Digia Plc and/or its subsidiary(-ies).
* Copyright (c) 2008-2012 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
*
* This file is part of CopperSpice.
*
* CopperSpice is free software: you can redistribute it and/or 
* modify it under the terms of the GNU Lesser General Public License
* version 2.1 as published by the Free Software Foundation.
*
* CopperSpice 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with CopperSpice.  If not, see 
* <http://www.gnu.org/licenses/>.
*
***********************************************************************/

#ifndef QJSONARRAY_H
#define QJSONARRAY_H

#include <QtCore/qjsonvalue.h>

QT_BEGIN_NAMESPACE


class QDebug;
class QStringList;

template <typename T> class QList;
typedef QList<QVariant> QVariantList;

class Q_CORE_EXPORT QJsonArray
{
 public:
   QJsonArray();
   ~QJsonArray();

   QJsonArray(const QJsonArray &other);
   QJsonArray &operator =(const QJsonArray &other);

   static QJsonArray fromStringList(const QStringList &list);
   static QJsonArray fromVariantList(const QVariantList &list);
   QVariantList toVariantList() const;

   int size() const;
   inline int count() const {
      return size();
   }

   bool isEmpty() const;
   QJsonValue at(int i) const;
   QJsonValue first() const;
   QJsonValue last() const;

   void prepend(const QJsonValue &value);
   void append(const QJsonValue &value);
   void removeAt(int i);
   QJsonValue takeAt(int i);
   inline void removeFirst() {
      removeAt(0);
   }
   inline void removeLast() {
      removeAt(size() - 1);
   }

   void insert(int i, const QJsonValue &value);
   void replace(int i, const QJsonValue &value);

   bool contains(const QJsonValue &element) const;
   QJsonValueRef operator[](int i);
   QJsonValue operator[](int i) const;

   bool operator==(const QJsonArray &other) const;
   bool operator!=(const QJsonArray &other) const;

   class const_iterator;

   class iterator
   {
    public:
      QJsonArray *a;
      int i;
      typedef std::random_access_iterator_tag  iterator_category;
      typedef int difference_type;
      typedef QJsonValue value_type;
      typedef QJsonValueRefPtr pointer;
      typedef QJsonValueRef reference;

      inline iterator() : a(0), i(0) { }
      explicit inline iterator(QJsonArray *array, int index) : a(array), i(index) { }

      inline QJsonValueRef operator*() const {
         return QJsonValueRef(a, i);
      }
      inline QJsonValueRefPtr operator->() const { 
	  return QJsonValueRefPtr(a, i); 
      }
      inline QJsonValueRef operator[](int j) const {
         return QJsonValueRef(a, i + j);
      }

      inline bool operator==(const iterator &o) const {
         return i == o.i;
      }
      inline bool operator!=(const iterator &o) const {
         return i != o.i;
      }
      inline bool operator<(const iterator &other) const {
         return i < other.i;
      }
      inline bool operator<=(const iterator &other) const {
         return i <= other.i;
      }
      inline bool operator>(const iterator &other) const {
         return i > other.i;
      }
      inline bool operator>=(const iterator &other) const {
         return i >= other.i;
      }
      inline bool operator==(const const_iterator &o) const {
         return i == o.i;
      }
      inline bool operator!=(const const_iterator &o) const {
         return i != o.i;
      }
      inline bool operator<(const const_iterator &other) const {
         return i < other.i;
      }
      inline bool operator<=(const const_iterator &other) const {
         return i <= other.i;
      }
      inline bool operator>(const const_iterator &other) const {
         return i > other.i;
      }
      inline bool operator>=(const const_iterator &other) const {
         return i >= other.i;
      }
      inline iterator &operator++() {
         ++i;
         return *this;
      }
      inline iterator operator++(int) {
         iterator n = *this;
         ++i;
         return n;
      }
      inline iterator &operator--() {
         i--;
         return *this;
      }
      inline iterator operator--(int) {
         iterator n = *this;
         i--;
         return n;
      }
      inline iterator &operator+=(int j) {
         i += j;
         return *this;
      }
      inline iterator &operator-=(int j) {
         i -= j;
         return *this;
      }
      inline iterator operator+(int j) const {
         return iterator(a, i + j);
      }
      inline iterator operator-(int j) const {
         return iterator(a, i - j);
      }
      inline int operator-(iterator j) const {
         return i - j.i;
      }
   };
   friend class iterator;

   class const_iterator
   {
    public:
      const QJsonArray *a;
      int i;
      typedef std::random_access_iterator_tag  iterator_category;
      typedef qptrdiff difference_type;
      typedef QJsonValue value_type;
      typedef QJsonValuePtr pointer;
      typedef QJsonValue reference;

      inline const_iterator() : a(0), i(0) { }
      explicit inline const_iterator(const QJsonArray *array, int index) : a(array), i(index) { }
      inline const_iterator(const const_iterator &o) : a(o.a), i(o.i) {}
      inline const_iterator(const iterator &o) : a(o.a), i(o.i) {}

      inline QJsonValue operator*() const {
         return a->at(i);
      }
      inline QJsonValuePtr operator->() const { 
	  return QJsonValuePtr(a->at(i));
      }
      inline QJsonValue operator[](int j) const {
         return a->at(i + j);
      }
      inline bool operator==(const const_iterator &o) const {
         return i == o.i;
      }
      inline bool operator!=(const const_iterator &o) const {
         return i != o.i;
      }
      inline bool operator<(const const_iterator &other) const {
         return i < other.i;
      }
      inline bool operator<=(const const_iterator &other) const {
         return i <= other.i;
      }
      inline bool operator>(const const_iterator &other) const {
         return i > other.i;
      }
      inline bool operator>=(const const_iterator &other) const {
         return i >= other.i;
      }
      inline const_iterator &operator++() {
         ++i;
         return *this;
      }
      inline const_iterator operator++(int) {
         const_iterator n = *this;
         ++i;
         return n;
      }
      inline const_iterator &operator--() {
         i--;
         return *this;
      }
      inline const_iterator operator--(int) {
         const_iterator n = *this;
         i--;
         return n;
      }
      inline const_iterator &operator+=(int j) {
         i += j;
         return *this;
      }
      inline const_iterator &operator-=(int j) {
         i -= j;
         return *this;
      }
      inline const_iterator operator+(int j) const {
         return const_iterator(a, i + j);
      }
      inline const_iterator operator-(int j) const {
         return const_iterator(a, i - j);
      }
      inline int operator-(const_iterator j) const {
         return i - j.i;
      }
   };
   friend class const_iterator;

   // stl style
   inline iterator begin() {
      detach();
      return iterator(this, 0);
   }
   inline const_iterator begin() const {
      return const_iterator(this, 0);
   }
   inline const_iterator constBegin() const {
      return const_iterator(this, 0);
   }
   inline iterator end() {
      detach();
      return iterator(this, size());
   }
   inline const_iterator end() const {
      return const_iterator(this, size());
   }
   inline const_iterator constEnd() const {
      return const_iterator(this, size());
   }
   iterator insert(iterator before, const QJsonValue &value) {
      insert(before.i, value);
      return before;
   }
   iterator erase(iterator it) {
      removeAt(it.i);
      return it;
   }

   // more Qt
   typedef iterator Iterator;
   typedef const_iterator ConstIterator;

   // stl compatibility
   inline void push_back(const QJsonValue &t) {
      append(t);
   }
   inline void push_front(const QJsonValue &t) {
      prepend(t);
   }
   inline void pop_front() {
      removeFirst();
   }
   inline void pop_back() {
      removeLast();
   }
   inline bool empty() const {
      return isEmpty();
   }
   typedef int size_type;
   typedef QJsonValue value_type;
   typedef value_type *pointer;
   typedef const value_type *const_pointer;
   typedef QJsonValueRef reference;
   typedef QJsonValue const_reference;
   typedef int difference_type;

 private:
   friend class QJsonPrivate::Data;
   friend class QJsonValue;
   friend class QJsonDocument;
   friend Q_CORE_EXPORT QDebug operator<<(QDebug, const QJsonArray &);

   QJsonArray(QJsonPrivate::Data *data, QJsonPrivate::Array *array);
   void compact();
   void detach(uint reserve = 0);

   QJsonPrivate::Data *d;
   QJsonPrivate::Array *a;
};

Q_CORE_EXPORT QDebug operator<<(QDebug, const QJsonArray &);

QT_END_NAMESPACE

#endif // QJSONARRAY_H