// Warning: Use the typemaps here in the expectation that the macros they are in will change name.

/*
 * SWIG typemaps for std::vector
 * C# implementation
 * The C# wrapper is made to look and feel like a typesafe C# ArrayList
 * All the methods in IList are defined, but we don't derive from IList as this is a typesafe collection.
 * Warning: heavy macro usage in this file. Use swig -E to get a sane view on the real file contents!
 */

// TODO: change ArgumentOutOfRangeException/char* Exception to ArgumentException in RemoveRange and GetRange and SetRange, Reverse(int, int) too - also add in runtime tests
// TODO: use of ArgumentOutOfRangeException in enums not correct, should just mention parameter name

// MACRO for use within the std::vector class body
// CSTYPE and CTYPE respectively correspond to the types in the cstype and ctype typemaps
%define SWIG_STD_VECTOR_MINIMUM(CSTYPE, CTYPE...)
%typemap(csinterfaces) std::vector<CTYPE > "IDisposable, System.Collections.IEnumerable";
%typemap(cscode) std::vector<CTYPE > %{
  public $csclassname(System.Collections.ICollection c) : this() {
    foreach (CSTYPE element in c) {
      this.Add(element);
    }
  }

  public bool IsFixedSize {
    get {
      return false;
    }
  }

  public bool IsReadOnly {
    get {
      return false;
    }
  }

  public CSTYPE this[int index]  {
    get {
      return getitem(index);
    }
    set {
      setitem(index, value);
    }
  }

  public int Capacity {
    get {
      return (int)capacity();
    }
    set {
      if (value < size())
        throw new ArgumentOutOfRangeException("Capacity");
      reserve((uint)value);
    }
  }

  public int Count {
    get {
      return (int)size();
    }
  }

  public bool IsSynchronized {
    get {
      return false;
    }
  }

  public void CopyTo(Array array) {
    CopyTo(0, array, 0, this.Count);
  }

  public void CopyTo(Array array, int arrayIndex) {
    CopyTo(0, array, arrayIndex, this.Count);
  }

  public void CopyTo(int index, System.Array array, int arrayIndex, int count) {
    if (array == null) {
      throw new ArgumentNullException("array is null.");
    }
    if (index < 0 || arrayIndex < 0 || count < 0) {
      throw new ArgumentOutOfRangeException("One of index, arrayIndex or count is less than zero.");
    }
    if (array.Rank > 1) {
      throw new ArgumentException("Multi dimensional array.");
    }
    if (index+count > this.Count || arrayIndex+count > array.Length) {
      throw new ArgumentException("Number of elements to copy is too large.");
    }
    for (int i=0; i<count; i++) {
      array.SetValue(getitemcopy(index+i), arrayIndex+i);
    }
  }

  // Type-safe version of IEnumerable.GetEnumerator
  System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator() {
    return new $csclassnameEnumerator(this);
  }

  public $csclassnameEnumerator GetEnumerator() {
    return new $csclassnameEnumerator(this);
  }

  // Type-safe enumerator
  /// Note that the IEnumerator documentation requires an InvalidOperationException to be thrown
  /// whenever the collection is modified. This has been done for changes in the size of the
  /// collection but not when one of the elements of the collection is modified as it is a bit
  /// tricky to detect unmanaged code that modifies the collection under our feet.
  public sealed class $csclassnameEnumerator : System.Collections.IEnumerator {
    private $csclassname collectionRef;
    private int currentIndex;
    private object currentObject;
    private int currentSize;

    public $csclassnameEnumerator($csclassname collection) {
      collectionRef = collection;
      currentIndex = -1;
      currentObject = null;
      currentSize = collectionRef.Count;
    }

    // Type-safe iterator Current
    public CSTYPE Current {
      get {
        if (currentIndex == -1) {
          throw new InvalidOperationException("Enumeration not started.");
        }
        if (currentIndex > currentSize - 1) {
          throw new InvalidOperationException("Enumeration finished.");
        }
        if (currentObject == null) {
          throw new InvalidOperationException("Collection modified.");
        }
        return (CSTYPE)currentObject;
      }
    }

    // Type-unsafe IEnumerator.Current
    object System.Collections.IEnumerator.Current {
      get {
        return Current;
      }
    }

    public bool MoveNext() {
      int size = collectionRef.Count;
      bool moveOkay = (currentIndex+1 < size) && (size == currentSize);
      if (moveOkay) {
        currentIndex++;
        currentObject = collectionRef[currentIndex];
      } else {
        currentObject = null;
      }
      return moveOkay;
    }

    public void Reset() {
      currentIndex = -1;
      currentObject = null;
      if (collectionRef.Count != currentSize) {
        throw new InvalidOperationException("Collection modified.");
      }
    }
  }
%}

  public:
    typedef size_t size_type;
    %rename(Clear) clear;
    void clear();
    %rename(Add) push_back;
    void push_back(const CTYPE& value);
    size_type size() const;
    size_type capacity() const;
    void reserve(size_type n);
    %newobject GetRange(int index, int count);
    %newobject Repeat(const CTYPE& value, int count);
    vector();
    %extend {
      vector(int capacity) {
        std::vector<CTYPE >* pv = 0;
        if (capacity >= 0) {
          pv = new std::vector<CTYPE >();
          pv->reserve(capacity);
       } else {
          throw std::out_of_range("capacity");
       }
       return pv;
      }
      CTYPE getitemcopy(int index) {
        int size = int(self->size());
        if (index>=0 && index<size)
          return (*self)[index];
        else
          throw std::out_of_range("index");
      }
      const CTYPE& getitem(int index) {
        int size = int(self->size());
        if (index>=0 && index<size)
          return (*self)[index];
        else
          throw std::out_of_range("index");
      }
      void setitem(int index, const CTYPE& value) {
        int size = int(self->size());
        if (index>=0 && index<size)
          (*self)[index] = value;
        else
          throw std::out_of_range("index");
      }
      // Takes a deep copy of the elements unlike ArrayList.AddRange
      void AddRange(const std::vector<CTYPE >& values) {
        self->insert(self->end(), values.begin(), values.end());
      }
      // Takes a deep copy of the elements unlike ArrayList.GetRange
      std::vector<CTYPE > *GetRange(int index, int count) {
        if (index>=0 && index<self->size()+1)
          if (count >= 0 && index+count <= self->size())
            return new std::vector<CTYPE >(self->begin()+index, self->begin()+index+count);
          else
            throw "count too large or negative.";
        else
          throw std::out_of_range("index");
      }
      void Insert(int index, const CTYPE& value) {
        if (index>=0 && index<self->size()+1)
          self->insert(self->begin()+index, value);
        else
          throw std::out_of_range("index");
      }
      // Takes a deep copy of the elements unlike ArrayList.InsertRange
      void InsertRange(int index, const std::vector<CTYPE >& values) {
        if (index>=0 && index<self->size()+1)
          self->insert(self->begin()+index, values.begin(), values.end());
        else
          throw std::out_of_range("index");
      }
      void RemoveAt(int index) {
        if (index>=0 && index<self->size())
          self->erase(self->begin() + index);
        else
          throw std::out_of_range("index");
      }
      void RemoveRange(int index, int count) {
        if (index>=0 && index<self->size()+1)
          if (count >= 0 && index+count <= self->size())
            self->erase(self->begin()+index, self->begin()+index+count);
          else
            throw "count too large or negative.";
        else
          throw std::out_of_range("index");
      }
      static std::vector<CTYPE > *Repeat(const CTYPE& value, int count) {
        if (count < 0)
          throw std::out_of_range("count");
        return new std::vector<CTYPE >(count, value);
      }
      void Reverse() {
        std::reverse(self->begin(), self->end());
      }
      void Reverse(int index, int count) {
        if (index>=0 && index<self->size()+1)
          if (count >= 0 && index+count <= self->size())
            std::reverse(self->begin()+index, self->begin()+index+count);
          else
            throw "count too large or negative.";
        else
          throw std::out_of_range("index");
      }
      // Takes a deep copy of the elements unlike ArrayList.SetRange
      void SetRange(int index, const std::vector<CTYPE >& values) {
        if (index>=0 && index<self->size()+1)
          if (index+values.size() <= self->size())
            std::copy(values.begin(), values.end(), self->begin()+index);
          else
            throw "too many elements.";
        else
          throw std::out_of_range("index");
      }
    }
%enddef

// Extra methods added to the collection class if operator== is defined for the class being wrapped
// CSTYPE and CTYPE respectively correspond to the types in the cstype and ctype typemaps
%define SWIG_STD_VECTOR_EXTRA_OP_EQUALS_EQUALS(CSTYPE, CTYPE...)
    %extend {
      bool Contains(const CTYPE& value) {
        return std::find(self->begin(), self->end(), value) != self->end();
      }
      int IndexOf(const CTYPE& value) {
        int index = -1;
        std::vector<CTYPE >::iterator it = std::find(self->begin(), self->end(), value);
        if (it != self->end())
          index = it - self->begin();
        return index;
      }
      int LastIndexOf(const CTYPE& value) {
        int index = -1;
        std::vector<CTYPE >::reverse_iterator rit = std::find(self->rbegin(), self->rend(), value);
        if (rit != self->rend())
          index = self->rend() - 1 - rit;
        return index;
      }
      void Remove(const CTYPE& value) {
        std::vector<CTYPE >::iterator it = std::find(self->begin(), self->end(), value);
        if (it != self->end())
          self->erase(it);
      }
    }
%enddef

// Macros for std::vector class specializations
// CSTYPE and CTYPE respectively correspond to the types in the cstype and ctype typemaps
%define SWIG_STD_VECTOR_SPECIALIZE(CSTYPE, CTYPE...)
namespace std {
  template<> class vector<CTYPE > {
    SWIG_STD_VECTOR_MINIMUM(CSTYPE, CTYPE)
    SWIG_STD_VECTOR_EXTRA_OP_EQUALS_EQUALS(CSTYPE, CTYPE)
  };
}
%enddef

%define SWIG_STD_VECTOR_SPECIALIZE_MINIMUM(CSTYPE, CTYPE...)
namespace std {
  template<> class vector<CTYPE > {
    SWIG_STD_VECTOR_MINIMUM(CSTYPE, CTYPE)
  };
}
%enddef


// Methods which can throw an Exception
%exception std::vector::vector(int capacity) {
  try {
    $action
  } catch (std::out_of_range& e) {
    SWIG_CSharpThrowException(SWIG_CSharpArgumentOutOfRangeException, e.what());
  }
}

%exception std::vector::getitemcopy {
  try {
    $action
  } catch (std::out_of_range& e) {
    SWIG_CSharpThrowException(SWIG_CSharpArgumentOutOfRangeException, e.what());
  }
}

%exception std::vector::getitem {
  try {
    $action
  } catch (std::out_of_range& e) {
    SWIG_CSharpThrowException(SWIG_CSharpArgumentOutOfRangeException, e.what());
  }
}

%exception std::vector::setitem {
  try {
    $action
  } catch (std::out_of_range& e) {
    SWIG_CSharpThrowException(SWIG_CSharpArgumentOutOfRangeException, e.what());
  }
}

%exception std::vector::GetRange {
  try {
    $action
  } catch (std::out_of_range& e) {
    SWIG_CSharpThrowException(SWIG_CSharpArgumentOutOfRangeException, e.what());
  } catch (const char *e) {
    SWIG_CSharpThrowException(SWIG_CSharpException, e);
  }
}

%exception std::vector::Insert {
  try {
    $action
  } catch (std::out_of_range& e) {
    SWIG_CSharpThrowException(SWIG_CSharpArgumentOutOfRangeException, e.what());
  }
}

%exception std::vector::InsertRange {
  try {
    $action
  } catch (std::out_of_range& e) {
    SWIG_CSharpThrowException(SWIG_CSharpArgumentOutOfRangeException, e.what());
  }
}

%exception std::vector::RemoveAt {
  try {
    $action
  } catch (std::out_of_range& e) {
    SWIG_CSharpThrowException(SWIG_CSharpArgumentOutOfRangeException, e.what());
  }
}

%exception std::vector::Repeat {
  try {
    $action
  } catch (std::out_of_range& e) {
    SWIG_CSharpThrowException(SWIG_CSharpArgumentOutOfRangeException, e.what());
  }
}

%exception std::vector::RemoveRange {
  try {
    $action
  } catch (std::out_of_range& e) {
    SWIG_CSharpThrowException(SWIG_CSharpArgumentOutOfRangeException, e.what());
  } catch (const char *e) {
    SWIG_CSharpThrowException(SWIG_CSharpException, e);
  }
}

%exception std::vector::Reverse(int index, int count) {
  try {
    $action
  } catch (std::out_of_range& e) {
    SWIG_CSharpThrowException(SWIG_CSharpArgumentOutOfRangeException, e.what());
  } catch (const char *e) {
    SWIG_CSharpThrowException(SWIG_CSharpException, e);
  }
}

%exception std::vector::SetRange {
  try {
    $action
  } catch (std::out_of_range& e) {
    SWIG_CSharpThrowException(SWIG_CSharpArgumentOutOfRangeException, e.what());
  } catch (const char *e) {
    SWIG_CSharpThrowException(SWIG_CSharpException, e);
  }
}


%{
#include <vector>
#include <algorithm>
#include <stdexcept>
%}

%csmethodmodifiers std::vector::getitemcopy "private"
%csmethodmodifiers std::vector::getitem "private"
%csmethodmodifiers std::vector::setitem "private"
%csmethodmodifiers std::vector::size "private"
%csmethodmodifiers std::vector::capacity "private"
%csmethodmodifiers std::vector::reserve "private"

namespace std {
  // primary (unspecialized) class template for std::vector
  // does not require operator== to be defined
  template<class T> class vector {
    SWIG_STD_VECTOR_MINIMUM(T, T)
  };
}

// template specializations for std::vector
// these provide extra collections methods as operator== is defined
SWIG_STD_VECTOR_SPECIALIZE(bool, bool)
SWIG_STD_VECTOR_SPECIALIZE(char, char)
SWIG_STD_VECTOR_SPECIALIZE(sbyte, signed char)
SWIG_STD_VECTOR_SPECIALIZE(byte, unsigned char)
SWIG_STD_VECTOR_SPECIALIZE(short, short)
SWIG_STD_VECTOR_SPECIALIZE(ushort, unsigned short)
SWIG_STD_VECTOR_SPECIALIZE(int, int)
SWIG_STD_VECTOR_SPECIALIZE(uint, unsigned int)
SWIG_STD_VECTOR_SPECIALIZE(int, long)
SWIG_STD_VECTOR_SPECIALIZE(uint, unsigned long)
SWIG_STD_VECTOR_SPECIALIZE(long, long long)
SWIG_STD_VECTOR_SPECIALIZE(ulong, unsigned long long)
SWIG_STD_VECTOR_SPECIALIZE(float, float)
SWIG_STD_VECTOR_SPECIALIZE(double, double)
SWIG_STD_VECTOR_SPECIALIZE(string, std::string) // also requires a %include "std_string.i"