/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
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** accordance with the commercial license agreement provided with the
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** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
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****************************************************************************/

#include "qanyuri_p.h"
#include "qcommonnamespaces_p.h"
#include "qcommonsequencetypes_p.h"
#include "qcurrentfn_p.h"
#include "qdocumentfn_p.h"
#include "qelementavailablefn_p.h"
#include "qfunctionavailablefn_p.h"
#include "qgenerateidfn_p.h"
#include "qsystempropertyfn_p.h"
#include "qtypeavailablefn_p.h"
#include "qunparsedentitypublicidfn_p.h"
#include "qunparsedentityurifn_p.h"
#include "qunparsedtextavailablefn_p.h"
#include "qunparsedtextfn_p.h"

#include "qxslt20corefunctions_p.h"

QT_BEGIN_NAMESPACE

using namespace QPatternist;

Expression::Ptr XSLT20CoreFunctions::retrieveExpression(const QXmlName lname,
                                                        const Expression::List &args,
                                                        const FunctionSignature::Ptr &sign) const
{
    Q_ASSERT(sign);

    Expression::Ptr fn;
#define testXSLTFN(ln, cname) else if(lname.localName() == StandardLocalNames::ln) fn = Expression::Ptr(new cname())

    if(false) /* Dummy for the macro handling. Will be optimized away anyway. */
        return Expression::Ptr();
    /* Alphabetic order. */
    testXSLTFN(current,                     CurrentFN);
    testXSLTFN(document,                    DocumentFN);
    testXSLTFN(element_available,           ElementAvailableFN);
    testXSLTFN(function_available,          FunctionAvailableFN);
    testXSLTFN(generate_id,                 GenerateIDFN);
    testXSLTFN(system_property,             SystemPropertyFN);
    testXSLTFN(type_available,              TypeAvailableFN);
    testXSLTFN(unparsed_entity_public_id,   UnparsedEntityPublicIDFN);
    testXSLTFN(unparsed_entity_uri,         UnparsedEntityURIFN);
    testXSLTFN(unparsed_text_available,     UnparsedTextAvailableFN);
    testXSLTFN(unparsed_text,               UnparsedTextFN);
#undef testXSLTFN

    Q_ASSERT(fn);
    fn->setOperands(args);
    fn->as<FunctionCall>()->setSignature(sign);

    return fn;
}

FunctionSignature::Ptr XSLT20CoreFunctions::retrieveFunctionSignature(const NamePool::Ptr &np, const QXmlName name)
{
    if(StandardNamespaces::fn != name.namespaceURI())
        return FunctionSignature::Ptr();

    FunctionSignature::Ptr s(functionSignatures().value(name));

    if(!s)
    {
        /* Alphabetic order. */
        if(name.localName() == StandardLocalNames::element_available)
        {
            s = addFunction(StandardLocalNames::element_available, 1, 1, CommonSequenceTypes::ExactlyOneBoolean);
            s->appendArgument(argument(np, "element-name"), CommonSequenceTypes::ExactlyOneString);
        }
        else if(name.localName() == StandardLocalNames::function_available)
        {
            s = addFunction(StandardLocalNames::function_available, 1, 2, CommonSequenceTypes::ExactlyOneBoolean);
            s->appendArgument(argument(np, "function_name"), CommonSequenceTypes::ExactlyOneString);
            s->appendArgument(argument(np, "arity"), CommonSequenceTypes::ExactlyOneInteger);
        }
        else if(name.localName() == StandardLocalNames::type_available)
        {
            s = addFunction(StandardLocalNames::type_available, 1, 1, CommonSequenceTypes::ExactlyOneBoolean);
            s->appendArgument(argument(np, "type_name"), CommonSequenceTypes::ExactlyOneString);
        }
        else if(name.localName() == StandardLocalNames::system_property)
        {
            s = addFunction(StandardLocalNames::system_property, 1, 1, CommonSequenceTypes::ExactlyOneString);
            s->appendArgument(argument(np, "property_name"), CommonSequenceTypes::ExactlyOneString);
        }
        else if(name.localName() == StandardLocalNames::generate_id)
        {
            s = addFunction(StandardLocalNames::generate_id, 0, 1, CommonSequenceTypes::ExactlyOneString,
                            Expression::UseContextItem);
            s->appendArgument(argument(np, "node"), CommonSequenceTypes::ZeroOrOneNode);
        }
        else if(name.localName() == StandardLocalNames::unparsed_text)
        {
            s = addFunction(StandardLocalNames::unparsed_text, 1, 2, CommonSequenceTypes::ZeroOrOneString,
                            Expression::DisableElimination);
            s->appendArgument(argument(np, "href"), CommonSequenceTypes::ZeroOrOneString);
            s->appendArgument(argument(np, "encoding"), CommonSequenceTypes::ExactlyOneString);
        }
        else if(name.localName() == StandardLocalNames::unparsed_text_available)
        {
            s = addFunction(StandardLocalNames::unparsed_text_available, 1, 2, CommonSequenceTypes::ExactlyOneBoolean,
                            Expression::DisableElimination);
            s->appendArgument(argument(np, "href"), CommonSequenceTypes::ZeroOrOneString);
            s->appendArgument(argument(np, "encoding"), CommonSequenceTypes::ZeroOrOneString);
        }
        else if(name.localName() == StandardLocalNames::current)
        {
            s = addFunction(StandardLocalNames::current, 0, 0, CommonSequenceTypes::ExactlyOneItem,
                            Expression::DisableElimination | Expression::RequiresCurrentItem);
        }
        else if(name.localName() == StandardLocalNames::document)
        {
            s = addFunction(StandardLocalNames::document, 1, 2, CommonSequenceTypes::OneOrMoreDocumentNodes,
                            Expression::DisableElimination);
            s->appendArgument(argument(np, "uri-sequence"), CommonSequenceTypes::ZeroOrMoreStrings);
            s->appendArgument(argument(np, "base-uri-node"), CommonSequenceTypes::ExactlyOneNode);
        }
        else if(name.localName() == StandardLocalNames::unparsed_entity_uri)
        {
            s = addFunction(StandardLocalNames::unparsed_entity_uri, 1, 1, CommonSequenceTypes::ExactlyOneAnyURI,
                            Expression::RequiresFocus | Expression::DisableElimination);
            s->appendArgument(argument(np, "entity-name"), CommonSequenceTypes::ExactlyOneString);
        }
        else if(name.localName() == StandardLocalNames::unparsed_entity_public_id)
        {
            s = addFunction(StandardLocalNames::unparsed_entity_public_id, 1, 1, CommonSequenceTypes::ExactlyOneString,
                            Expression::RequiresFocus | Expression::DisableElimination);
            s->appendArgument(argument(np, "entity-name"), CommonSequenceTypes::ExactlyOneString);
        }
    }

    return s;
}

QT_END_NAMESPACE