#ifndef __ARC_WSA_H__
#define __ARC_WSA_H__

#include <arc/XMLNode.h>
#include <arc/message/SOAPEnvelope.h>

// WS-Adressing
// wsa="http://www.w3.org/2005/08/addressing"

namespace Arc {

#define WSA_NAMESPACE "http://www.w3.org/2005/08/addressing"

/// Interface for manipulation of WS-Adressing Endpoint Reference. 
/** It works on Endpoint Reference stored in XML tree.
  No information is stored in this object except reference to corresponding
  XML subtree. */
class WSAEndpointReference {
 protected:
  XMLNode epr_; /** Link to top level EPR XML node */
 public:
  /** Linking to existing EPR in XML tree */
  WSAEndpointReference(XMLNode epr);
  /** Copy constructor */
  WSAEndpointReference(const WSAEndpointReference& wsa);
  /** Creating independent EPR - not implemented */
  WSAEndpointReference(const std::string& address);
  /** Dummy constructor - creates invalid instance */
  WSAEndpointReference(void);
  /** Destructor. All empty elements of EPR XML are destroyed here too */
  ~WSAEndpointReference(void);
  /** Returns Address (URL) encoded in EPR */
  std::string Address(void) const;
  /** Returns true if Address is defined */
  bool hasAddress(void) const;
  /** Assigns new Address value. If EPR had no Address element it is created. */
  void Address(const std::string& uri);
  /** Same as Address(uri) */
  WSAEndpointReference& operator=(const std::string& address);
  /** Access to ReferenceParameters element of EPR.
    Obtained XML element should be manipulated directly in application-dependent
    way. If EPR had no ReferenceParameters element it is created. */
  XMLNode ReferenceParameters(void);
  /** Access to MetaData element of EPR.
    Obtained XML element should be manipulated directly in application-dependent
    way. If EPR had no MetaData element it is created. */
  XMLNode MetaData(void);
  /** Returns reference to EPR top XML node */
  operator XMLNode(void);
};

/// Interface for manipulation WS-Addressing information in SOAP header
/** It works on Endpoint Reference stored in XML tree.
  No information is stored in this object except reference to corresponding
  XML subtree. */
class WSAHeader {
 protected:
  XMLNode header_; /** SOAP header element */
  bool header_allocated_; /* not used */
  //XMLNode from_;
  //XMLNode to_;
  //XMLNode replyto_;
  //XMLNode faultto_;
 public:
  /** Linking to a header of existing SOAP message */
  WSAHeader(SOAPEnvelope& soap);
  /** Creating independent SOAP header - not implemented */
  WSAHeader(const std::string& action);
  ~WSAHeader(void);
  /** Returns content of To element of SOAP Header. */
  std::string To(void) const;
  /** Returns true if To element is defined. */
  bool hasTo(void) const;
  /** Set content of To element of SOAP Header. If such element does not exist it's created. */
  void To(const std::string& uri);
  /** Returns From element of SOAP Header. 
    If such element does not exist it's created. Obtained element may be manipulted. */
  WSAEndpointReference From(void);
  /** Returns ReplyTo element of SOAP Header. 
    If such element does not exist it's created. Obtained element may be manipulted. */
  WSAEndpointReference ReplyTo(void);
  /** Returns FaultTo element of SOAP Header. 
    If such element does not exist it's created. Obtained element may be manipulted. */
  WSAEndpointReference FaultTo(void);
  /** Returns content of Action element of SOAP Header. */
  std::string Action(void) const;
  /** Returns true if Action element is defined. */
  bool hasAction(void) const;
  /** Set content of Action element of SOAP Header. If such element does not exist it's created. */
  void Action(const std::string& uri);
  /** Returns content of MessageID element of SOAP Header. */
  std::string MessageID(void) const;
  /** Returns true if MessageID element is defined. */
  bool hasMessageID(void) const;
  /** Set content of MessageID element of SOAP Header. If such element does not exist it's created. */
  void MessageID(const std::string& uri);
  /** Returns content of RelatesTo element of SOAP Header. */
  std::string RelatesTo(void) const;
  /** Returns true if RelatesTo element is defined. */
  bool hasRelatesTo(void) const;
  /** Set content of RelatesTo element of SOAP Header. If such element does not exist it's created. */
  void RelatesTo(const std::string& uri);
  /** Returns content of RelationshipType element of SOAP Header. */
  std::string RelationshipType(void) const;
  /** Returns true if RelationshipType element is defined. */
  bool hasRelationshipType(void) const;
  /** Set content of RelationshipType element of SOAP Header. If such element does not exist it's created. */
  void RelationshipType(const std::string& uri);
  /** Return n-th ReferenceParameter element */
  XMLNode ReferenceParameter(int n);
  /** Returns first ReferenceParameter element with specified name */
  XMLNode ReferenceParameter(const std::string& name);
  /** Creates new ReferenceParameter element with specified name. 
    Returns reference to created element. */
  XMLNode NewReferenceParameter(const std::string& name);
  /** Returns reference to SOAP Header - not implemented */
  operator XMLNode(void);
  /** Tells if specified SOAP message has WSA header */
  static bool Check(SOAPEnvelope& soap);
};

/// WS-Addressing possible faults
typedef enum {
  WSAFaultNone, /** This is not a fault */
  WSAFaultUnknown, /** This is not a WS-Addressing fault */
  WSAFaultInvalidAddressingHeader,
  WSAFaultInvalidAddress,
  WSAFaultInvalidEPR,
  WSAFaultInvalidCardinality,
  WSAFaultMissingAddressInEPR,
  WSAFaultDuplicateMessageID,
  WSAFaultActionMismatch,
  WSAFaultOnlyAnonymousAddressSupported,
  WSAFaultOnlyNonAnonymousAddressSupported,
  WSAFaultMessageAddressingHeaderRequired,
  WSAFaultDestinationUnreachable,
  WSAFaultActionNotSupported,
  WSAFaultEndpointUnavailable
} WSAFault;

/// Makes WS-Addressing fault.
/** It fills SOAP Fault message with WS-Addressing fault related information. */
void WSAFaultAssign(SOAPEnvelope& mesage,WSAFault fid);
/// Gets WS-addressing fault.
/** Analyzes SOAP Fault message and returns WS-Addressing fault it represents. */
WSAFault WSAFaultExtract(SOAPEnvelope& message);

} // namespace Arc

#endif /* __ARC_WSA_H__ */