/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
/*
 * This file is part of the Collabora Office project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#include <sal/config.h>

#include <cassert>

#include <com/sun/star/beans/PropertyValue.hpp>
#include <com/sun/star/frame/DispatchDescriptor.hpp>
#include <com/sun/star/frame/Desktop.hpp>
#include <com/sun/star/frame/XDispatch.hpp>
#include <com/sun/star/frame/XDispatchProvider.hpp>
#include <com/sun/star/frame/XStatusListener.hpp>
#include <com/sun/star/lang/XServiceInfo.hpp>
#include <com/sun/star/uno/DeploymentException.hpp>
#include <com/sun/star/uno/Exception.hpp>
#include <com/sun/star/uno/Reference.hxx>
#include <com/sun/star/uno/RuntimeException.hpp>
#include <cpo/uno/Sequence.hxx>
#include <com/sun/star/uno/XComponentContext.hpp>
#include <com/sun/star/uno/XInterface.hpp>
#include <com/sun/star/util/URL.hpp>
#include <cppuhelper/factory.hxx>
#include <cppuhelper/implbase2.hxx>
#include <cppuhelper/implementationentry.hxx>
#include <cppuhelper/supportsservice.hxx>
#include <cppuhelper/weak.hxx>
#include <rtl/ustring.hxx>
#include <sal/log.hxx>
#include <sal/types.h>
#include <uno/lbnames.h>

#include "rust_uno_hook.hxx"

namespace
{
class Provider
    : public cppu::WeakImplHelper2<css::lang::XServiceInfo, css::frame::XDispatchProvider>
{
public:
    Provider(const Provider&) = delete;
    const Provider& operator=(const Provider&) = delete;

    static css::uno::Reference<css::uno::XInterface>
        SAL_CALL static_create(css::uno::Reference<css::uno::XComponentContext> const& xContext)
    {
        return static_cast<cppu::OWeakObject*>(new Provider(xContext));
    }

    static rtl::OUString SAL_CALL static_getImplementationName();

    static cpo::uno::Sequence<rtl::OUString> SAL_CALL static_getSupportedServiceNames();

private:
    explicit Provider(css::uno::Reference<css::uno::XComponentContext> const& context)
        : context_(context)
    {
        assert(context.is());
    }

    virtual ~Provider() {}

    virtual rtl::OUString SAL_CALL getImplementationName() override
    {
        return static_getImplementationName();
    }

    virtual bool SAL_CALL supportsService(rtl::OUString const& ServiceName) override
    {
        return cppu::supportsService(this, ServiceName);
    }

    virtual cpo::uno::Sequence<rtl::OUString> SAL_CALL getSupportedServiceNames() override
    {
        return static_getSupportedServiceNames();
    }

    virtual css::uno::Reference<css::frame::XDispatch>
        SAL_CALL queryDispatch(css::util::URL const&, rtl::OUString const&, sal_Int32) override;

    virtual cpo::uno::Sequence<css::uno::Reference<css::frame::XDispatch>> SAL_CALL
    queryDispatches(cpo::uno::Sequence<css::frame::DispatchDescriptor> const& Requests) override;

    css::uno::Reference<css::uno::XComponentContext> context_;
};

rtl::OUString Provider::static_getImplementationName()
{
    return u"org.libreoffice.comp.rust_uno.example"_ustr;
}

cpo::uno::Sequence<rtl::OUString> Provider::static_getSupportedServiceNames()
{
    rtl::OUString name(u"org.libreoffice.rust_uno.example"_ustr);
    return cpo::uno::Sequence<rtl::OUString>(&name, 1);
}

css::uno::Reference<css::frame::XDispatch> Provider::queryDispatch(css::util::URL const&,
                                                                   rtl::OUString const&, sal_Int32)
{
    css::uno::Reference<css::frame::XDispatch> dispatch;
    if (!(context_->getValueByName(u"/singletons/org.libreoffice.rust_uno.example_singleton"_ustr)
          >>= dispatch)
        || !dispatch.is())
    {
        throw css::uno::DeploymentException(u"component context fails to supply singleton "
                                            "org.libreoffice.rust_uno.example_singleton of type "
                                            "com.sun.star.frame.XDispatch"_ustr,
                                            context_);
    }
    return dispatch;
}

cpo::uno::Sequence<css::uno::Reference<css::frame::XDispatch>>
Provider::queryDispatches(cpo::uno::Sequence<css::frame::DispatchDescriptor> const& Requests)
{
    cpo::uno::Sequence<css::uno::Reference<css::frame::XDispatch>> s(Requests.getLength());
    auto const elems = s.getArray();
    for (sal_Int32 i = 0; i < s.getLength(); ++i)
    {
        elems[i]
            = queryDispatch(Requests[i].FeatureURL, Requests[i].FrameName, Requests[i].SearchFlags);
    }
    return s;
}

class Dispatch : public cppu::WeakImplHelper2<css::lang::XServiceInfo, css::frame::XDispatch>
{
public:
    Dispatch(const Dispatch&) = delete;
    const Dispatch& operator=(const Dispatch&) = delete;

    static css::uno::Reference<css::uno::XInterface>
        SAL_CALL static_create(css::uno::Reference<css::uno::XComponentContext> const& xContext)
    {
        return static_cast<cppu::OWeakObject*>(new Dispatch(xContext));
    }

    static rtl::OUString SAL_CALL static_getImplementationName();

    static cpo::uno::Sequence<rtl::OUString> SAL_CALL static_getSupportedServiceNames()
    {
        return cpo::uno::Sequence<rtl::OUString>();
    }

private:
    explicit Dispatch(css::uno::Reference<css::uno::XComponentContext> const& context)
        : context_(context)
    {
        assert(context.is());
    }

    virtual ~Dispatch() {}

    virtual rtl::OUString SAL_CALL getImplementationName() override
    {
        return static_getImplementationName();
    }

    virtual bool SAL_CALL supportsService(rtl::OUString const& ServiceName) override
    {
        return cppu::supportsService(this, ServiceName);
    }

    virtual cpo::uno::Sequence<rtl::OUString> SAL_CALL getSupportedServiceNames() override
    {
        return static_getSupportedServiceNames();
    }

    virtual void SAL_CALL dispatch(css::util::URL const&,
                                   cpo::uno::Sequence<css::beans::PropertyValue> const&) override;

    virtual void SAL_CALL addStatusListener(css::uno::Reference<css::frame::XStatusListener> const&,
                                            css::util::URL const&) override
    {
    }

    virtual void SAL_CALL removeStatusListener(
        css::uno::Reference<css::frame::XStatusListener> const&, css::util::URL const&) override
    {
    }

    css::uno::Reference<css::uno::XComponentContext> context_;
};

rtl::OUString Dispatch::static_getImplementationName()
{
    return u"org.libreoffice.comp.rust_uno.example_singleton"_ustr;
}

void Dispatch::dispatch(css::util::URL const&, cpo::uno::Sequence<css::beans::PropertyValue> const&)
{
    // === RUST UNO BINDING TEST ===
    // Call our Rust UNO binding to test it works within LibreOffice
    SAL_INFO("desktop.app", "Testing Rust UNO binding...");
    try
    {
        run_rust_uno_test();
        SAL_INFO("desktop.app", "Rust UNO binding test completed successfully!");
    }
    catch (...)
    {
        SAL_WARN("desktop.app", "Rust UNO binding test failed!");
    }
}

cppu::ImplementationEntry const services[] = {
    { &Provider::static_create, &Provider::static_getImplementationName,
      &Provider::static_getSupportedServiceNames, &cppu::createSingleComponentFactory, nullptr, 0 },
    { &Dispatch::static_create, &Dispatch::static_getImplementationName,
      &Dispatch::static_getSupportedServiceNames, &cppu::createSingleComponentFactory, nullptr, 0 },
    { nullptr, nullptr, nullptr, nullptr, nullptr, 0 }
};
}

extern "C" SAL_DLLPUBLIC_EXPORT void*
component_getFactory(char const* pImplName, void* pServiceManager, void* pRegistryKey)
{
    return cppu::component_getFactoryHelper(pImplName, pServiceManager, pRegistryKey, services);
}

extern "C" SAL_DLLPUBLIC_EXPORT void
component_getImplementationEnvironment(char const** ppEnvTypeName, uno_Environment**)
{
    *ppEnvTypeName = CPPU_CURRENT_LANGUAGE_BINDING_NAME;
}

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