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#include "javadocgenerator.h"

QT_BEGIN_NAMESPACE

enum JavaSignatureSyntax {

    GeneratedJdocFile,

    JavadocRef,

    SlotSignature

};

static QString javaSignature(const FunctionNode *func, JavaSignatureSyntax syntax,

                             int maxParams = 65535)

{

    maxParams = qMin(maxParams, func->parameters().count());

    QString result;

    if (syntax == GeneratedJdocFile) {

        if (func->access() == Node::Public) {

            result += "public ";

        } else if (func->access() == Node::Protected) {

            result += "protected ";

        } else {

            result += "private ";

        }

        if (func->metaness() == FunctionNode::Native)

            result += "native ";

        if (func->isConst())

            result += "final ";

        // ### func->metaness() == FunctionNode::Abstract

        if (func->isStatic())

            result += "static ";

        if (!func->returnType().isEmpty()) {

            result += func->returnType();

            result += ' ';

        }

    }

    if (syntax == SlotSignature) {

        result += "void mySlot";

    } else {

        result += func->name();

    }

    result += '(';

    for (int i = 0; i < maxParams; ++i) {

        if (i != 0)

            result += ", ";

        result += func->parameters().at(i).leftType();

        if (syntax != JavadocRef) {

            result += ' ';

            result += func->parameters().at(i).name();

        }

    }

    result += ')';

    return result;

}

static QString packageName(const Node *node)

{

    while (node && node->type() != Node::Class && node->type() != Node::Fake)

        node = node->parent();

    if (!node)

        return QString();

    return node->moduleName();

}

JavadocGenerator::JavadocGenerator()

    : oldDevice(0), currentDepth(0)

{

}

JavadocGenerator::~JavadocGenerator()

{

}

void JavadocGenerator::initializeGenerator(const Config &config)

{

    HtmlGenerator::initializeGenerator(config);

    formattingLeftMap().insert(ATOM_FORMATTING_PARAMETER,

                               formattingLeftMap().value(ATOM_FORMATTING_TELETYPE));

    formattingRightMap().insert(ATOM_FORMATTING_PARAMETER,

                                formattingRightMap().value(ATOM_FORMATTING_TELETYPE));

}

void JavadocGenerator::terminateGenerator()

{

    HtmlGenerator::terminateGenerator();

}

QString JavadocGenerator::format()

{

    return "javadoc";

}

void JavadocGenerator::generateTree(const Tree *tree, CodeMarker *marker)

{

    HtmlGenerator::generateTree(tree, marker);

}

QString JavadocGenerator::fileExtension(const Node *node)

{

    if (node->type() == Node::Fake) {

        return "html";

    } else {

        return "jdoc";

    }

}

QString JavadocGenerator::typeString(const Node *node)

{

    if (node->type() == Node::Function) {

        const FunctionNode *func = static_cast<const FunctionNode *>(node);

        return func->metaness() == FunctionNode::Signal ? "signal" : "method";

    } else {

        return HtmlGenerator::typeString(node);

    }

}

QString JavadocGenerator::imageFileName(const Node *relative, const QString& fileBase)

{

    QString result = HtmlGenerator::imageFileName(relative, fileBase);

    if (!result.isEmpty()) {

        QString package = packageName(relative);

        int numSubPackages = package.count('.') - 2;

        while (numSubPackages > 0) {

            result.prepend("%2E%2E/");  // javadoc 1.5.0_06 chokes on '../'

            --numSubPackages;

        }

    }

    return result;

}

static int textDepth = 0;

void JavadocGenerator::startText(const Node *relative, CodeMarker *marker)

{

    if (textDepth++ == 0 && relative->type() != Node::Fake) {

        Q_ASSERT(!oldDevice);

        oldDevice = out().device();

        Q_ASSERT(oldDevice);

        out().setString(&buffer);

    }

    HtmlGenerator::startText(relative, marker);

}

void JavadocGenerator::endText(const Node *relative, CodeMarker *marker)

{

    HtmlGenerator::endText(relative, marker);

    if (--textDepth == 0 && relative->type() != Node::Fake) {

        Q_ASSERT(oldDevice);

        out().setDevice(oldDevice);

        oldDevice = 0;

        /*

            Need to escape XML metacharacters in .jdoc files.

        */

        buffer.replace("*/", "*<!-- noop -->/");

        buffer.replace("&", "&");

        buffer.replace("\"", """);

        buffer.replace("<", "&lt;");

        buffer.replace(">", ">");

        out() << buffer;

        buffer.clear();

    }

}

int JavadocGenerator::generateAtom(const Atom *atom, const Node *relative, CodeMarker *marker)

{

    return HtmlGenerator::generateAtom(atom, relative, marker);

}

void JavadocGenerator::generateClassLikeNode(const InnerNode *inner, CodeMarker *marker)

{

    generateIndent();

    out() << "<class name=\"" << protect(inner->name()) << "\"";

    generateDoc(inner, marker);

    out() << ">\n";

    ++currentDepth;

    foreach (Node *node, inner->childNodes()) {

        if (node->isInnerNode()) {

            generateClassLikeNode(static_cast<InnerNode *>(node), marker);

        } else {

            if (node->type() == Node::Enum) {

                EnumNode *enume = static_cast<EnumNode *>(node);

                generateIndent();

                out() << "<enum name=\"" << protect(node->name()) << "\"";

                generateDoc(node, marker);

                out() << ">\n";

                ++currentDepth;

                const QList<EnumItem> &items = enume->items();

                for (int i = 0; i < items.count(); ++i) {

                    const EnumItem &item = items.at(i);

                    generateIndent();

                    out() << "<enum-value name=\"" << protect(item.name()) << "\"";

                    generateEnumItemDoc(item.text(), enume, marker);

                    out() << "/>\n";

                }

                --currentDepth;

                out() << "</enum>\n";

            } else if (node->type() == Node::Function) {

                FunctionNode *func = static_cast<FunctionNode *>(node);

                generateIndent();

                out() << (func->metaness() == FunctionNode::Signal ? "<signal" : "<method")

                      << " name=\""

                      << protect(javaSignature(func, GeneratedJdocFile))

                      << "\"";

                generateDoc(node, marker);

                out() << "/>\n";

            }

        }

    }

    --currentDepth;

    generateIndent();

    out() << "</class>\n";

}

void JavadocGenerator::generateFakeNode(const FakeNode *fake, CodeMarker *marker)

{

    HtmlGenerator::generateFakeNode(fake, marker);

}

bool JavadocGenerator::generateText(const Text& text, const Node *relative, CodeMarker *marker)

{

    HtmlGenerator::generateText(text, relative, marker);

    return true;

}

void JavadocGenerator::generateBody(const Node *node, CodeMarker *marker)

{

    generateText(node->doc().body(), node, marker);

}

void JavadocGenerator::generateAlsoList( const Node *node, CodeMarker *marker )

{

    QList<Text> alsoList = node->doc().alsoList();

    supplementAlsoList(node, alsoList);

    if (node->type() == Node::Fake

            || (node->type() == Node::Function

                && static_cast<const FunctionNode *>(node)->metaness() == FunctionNode::Signal)) {

        Text text;

        if (!alsoList.isEmpty()) {

            text << Atom(Atom::ListLeft, ATOM_LIST_TAG)

                 << Atom(Atom::ListTagLeft, ATOM_LIST_TAG)

                 << Atom(Atom::FormattingLeft, ATOM_FORMATTING_BOLD)

                 << "See Also:"

                 << Atom(Atom::FormattingRight, ATOM_FORMATTING_BOLD)

                 << Atom(Atom::ListTagRight, ATOM_LIST_TAG)

                 << Atom(Atom::ListItemLeft, ATOM_LIST_TAG);

            for (int i = 0; i < alsoList.count(); ++i) {

                if (i != 0)

                    text << ", ";

                text << alsoList.at(i);

            }

            text << Atom(Atom::ListItemRight, ATOM_LIST_TAG)

                 << Atom(Atom::ListRight, ATOM_LIST_TAG);

        }

        generateText(text, node, marker);

    } else {

        foreach (const Text &text, alsoList) {

            out() << "\n@see ";

            generateText(text, node, marker);

        }

    }

}

QString JavadocGenerator::refForNode( const Node *node )

{

    if (node->type() == Node::Function)

        return javaSignature(static_cast<const FunctionNode *>(node), JavadocRef);

    return HtmlGenerator::refForNode(node);

}

QString JavadocGenerator::linkForNode( const Node *node, const Node *relative )

{

    // ### EVIL, relative should never be null

    if (!relative)

        relative = node;

    if (packageName(node).isEmpty()) {

        // ### jasmin: Fixme

        return QString();

    }

    QString result;

    if (node->type() == Node::Fake) {

        result = node->name();

    } else {

        if (!node->isInnerNode()) {

            result = linkForNode(node->parent(), relative) + "#" + refForNode(node);

        } else {

            result = node->name() + ".html";

        }

    }

    QStringList nodePackage = packageName(node).split(".");

    QStringList relativePackage = packageName(relative).split(".");

    if (nodePackage == QStringList(QString()) || relativePackage == QStringList(QString())) {

        qWarning("I'm in trouble [%s][%s]", qPrintable(node->name()), qPrintable(relative->name()));

        return QString();

    }

    int i = nodePackage.count() - 1;

    while (nodePackage.value(i) != relativePackage.value(i)) {

        result.prepend(nodePackage.at(i) + "/");

        --i;

    }

    ++i;

    while (i < relativePackage.count()) {

        result.prepend("%2E%2E/");      // javadoc 1.5.0_06 chokes on '../'

        ++i;

    }

    return result;

}

QString JavadocGenerator::refForAtom(Atom *atom, const Node *node)

{

    return HtmlGenerator::refForAtom(atom, node);

}

/*

    Neutralize dumb functions called from HtmlGenerator.

*/

void JavadocGenerator::generateDcf(const QString & /* fileBase */, const QString & /* startPage */,

                                   const QString & /* title */, DcfSection & /* dcfRoot */)

{

}

void JavadocGenerator::generateIndex(const QString & /* fileBase */, const QString & /* url */,

                                     const QString & /* title */)

{

}

void JavadocGenerator::generateIndent()

{

    for (int i = 0; i < currentDepth; ++i)

        out() << "    ";

}

void JavadocGenerator::generateDoc(const Node *node, CodeMarker *marker)

{

    const Text &text = node->doc().body();

    if (!text.isEmpty()) {

        out() << " doc=\"/**\n";

        Generator::generateStatus(node, marker);

        generateText(text, node, marker);

        if (node && node->type() == Node::Function) {

            const FunctionNode *func = static_cast<const FunctionNode *>(node);

            if (func->metaness() == FunctionNode::Signal) {

                QStringList slotSignatures;

                for (int i = func->parameters().count(); i >= 0; --i)

                    slotSignatures += javaSignature(func, SlotSignature, i);

                Text text;

                text << Atom(Atom::ListLeft, ATOM_LIST_TAG)

                     << Atom(Atom::ListTagLeft, ATOM_LIST_TAG)

                     << Atom(Atom::FormattingLeft, ATOM_FORMATTING_BOLD);

                if (slotSignatures.count() == 1) {

                    text << "Compatible Slot Signature:";

                } else {

                    text << "Compatible Slot Signatures:";

                }

                text << Atom(Atom::FormattingRight, ATOM_FORMATTING_BOLD)

                     << Atom(Atom::ListTagRight, ATOM_LIST_TAG);

                for (int i = 0; i < slotSignatures.count(); ++i) {

                    text << Atom(Atom::ListItemLeft, ATOM_LIST_TAG)

                         << Atom(Atom::C, marker->markedUpCode(slotSignatures.at(i), 0, ""))

                         << Atom(Atom::ListItemRight, ATOM_LIST_TAG);

                }

                text << Atom(Atom::ListRight, ATOM_LIST_TAG);

                generateText(text, node, marker);

            }

        }

        if (node)

            generateAlsoList(node, marker);

        out() << " */\"";

    }

}

void JavadocGenerator::generateEnumItemDoc(const Text &text, const Node *node, CodeMarker *marker)

{

    out() << " doc=\"/**\n";

    if (text.isEmpty()) {

        out() << "Internal.";

    } else {

        generateText(text, node, marker);

    }

    out() << " */\"";

}

QT_END_NAMESPACE