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** Copyright (C) 2016 The Qt Company Ltd.
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#include "googletest.h"

#include "mockclangcodemodelclient.h"
#include "mockclangcodemodelserver.h"

#include <clangcodemodelclientproxy.h>
#include <clangcodemodelserverproxy.h>

#include <clangcodemodelservermessages.h>

#include <readmessageblock.h>
#include <writemessageblock.h>

#include <QBuffer>
#include <QString>
#include <QVariant>

#include <vector>

using namespace ClangBackEnd;

namespace {

using ::testing::Args;
using ::testing::Property;
using ::testing::Eq;

class ClientServerInProcess : public ::testing::Test
{
protected:
    ClientServerInProcess();

    void SetUp();
    void TearDown();


    void scheduleServerMessages();
    void scheduleClientMessages();

protected:
    Utf8String filePath{Utf8StringLiteral(TESTDATA_DIR"/complete_extractor_function.cpp")};
    ClangBackEnd::FileContainer fileContainer{filePath,
                                              Utf8StringLiteral("projectPartId"),
                                              Utf8StringLiteral("unsaved content"),
                                              true,
                                              1};
    QBuffer buffer;
    MockClangCodeModelClient mockClangCodeModelClient;
    MockClangCodeModelServer mockClangCodeModelServer;

    ClangBackEnd::ClangCodeModelServerProxy serverProxy;
    ClangBackEnd::ClangCodeModelClientProxy clientProxy;
};

TEST_F(ClientServerInProcess, SendEndMessage)
{
    EXPECT_CALL(mockClangCodeModelServer, end())
        .Times(1);

    serverProxy.end();
    scheduleServerMessages();
}

TEST_F(ClientServerInProcess, SendAliveMessage)
{
    EXPECT_CALL(mockClangCodeModelClient, alive())
        .Times(1);

    clientProxy.alive();
    scheduleClientMessages();
}

TEST_F(ClientServerInProcess, SendRegisterTranslationUnitForEditorMessage)
{
    ClangBackEnd::RegisterTranslationUnitForEditorMessage message({fileContainer},
                                                                  filePath,
                                                                  {filePath});

    EXPECT_CALL(mockClangCodeModelServer, registerTranslationUnitsForEditor(message))
        .Times(1);

    serverProxy.registerTranslationUnitsForEditor(message);
    scheduleServerMessages();
}

TEST_F(ClientServerInProcess, SendUpdateTranslationUnitsForEditorMessage)
{
    ClangBackEnd::UpdateTranslationUnitsForEditorMessage message({fileContainer});

    EXPECT_CALL(mockClangCodeModelServer, updateTranslationUnitsForEditor(message))
        .Times(1);

    serverProxy.updateTranslationUnitsForEditor(message);
    scheduleServerMessages();
}

TEST_F(ClientServerInProcess, SendUnregisterTranslationUnitsForEditorMessage)
{
    ClangBackEnd::UnregisterTranslationUnitsForEditorMessage message({fileContainer});

    EXPECT_CALL(mockClangCodeModelServer, unregisterTranslationUnitsForEditor(message))
        .Times(1);

    serverProxy.unregisterTranslationUnitsForEditor(message);
    scheduleServerMessages();
}

TEST_F(ClientServerInProcess, SendRegisterUnsavedFilesForEditorMessage)
{
    ClangBackEnd::RegisterUnsavedFilesForEditorMessage message({fileContainer});

    EXPECT_CALL(mockClangCodeModelServer, registerUnsavedFilesForEditor(message))
        .Times(1);

    serverProxy.registerUnsavedFilesForEditor(message);
    scheduleServerMessages();
}

TEST_F(ClientServerInProcess, SendUnregisterUnsavedFilesForEditorMessage)
{
    ClangBackEnd::UnregisterUnsavedFilesForEditorMessage message({fileContainer});

    EXPECT_CALL(mockClangCodeModelServer, unregisterUnsavedFilesForEditor(message))
        .Times(1);

    serverProxy.unregisterUnsavedFilesForEditor(message);
    scheduleServerMessages();
}

TEST_F(ClientServerInProcess, SendCompleteCodeMessage)
{
    ClangBackEnd::CompleteCodeMessage message(Utf8StringLiteral("foo.cpp"), 24, 33, Utf8StringLiteral("do what I want"));

    EXPECT_CALL(mockClangCodeModelServer, completeCode(message))
        .Times(1);

    serverProxy.completeCode(message);
    scheduleServerMessages();
}

TEST_F(ClientServerInProcess, SendRequestDocumentAnnotationsMessage)
{
    ClangBackEnd::RequestDocumentAnnotationsMessage message({Utf8StringLiteral("foo.cpp"),
                                                             Utf8StringLiteral("projectId")});

    EXPECT_CALL(mockClangCodeModelServer, requestDocumentAnnotations(message))
        .Times(1);

    serverProxy.requestDocumentAnnotations(message);
    scheduleServerMessages();
}

TEST_F(ClientServerInProcess, SendCodeCompletedMessage)
{
    ClangBackEnd::CodeCompletions codeCompletions({Utf8StringLiteral("newFunction()")});
    ClangBackEnd::CodeCompletedMessage message(codeCompletions,
                                               ClangBackEnd::CompletionCorrection::NoCorrection,
                                               1);

    EXPECT_CALL(mockClangCodeModelClient, codeCompleted(message))
        .Times(1);

    clientProxy.codeCompleted(message);
    scheduleClientMessages();
}

TEST_F(ClientServerInProcess, SendRegisterProjectPartsForEditorMessage)
{
    ClangBackEnd::ProjectPartContainer projectContainer(Utf8StringLiteral(TESTDATA_DIR"/complete.pro"));
    ClangBackEnd::RegisterProjectPartsForEditorMessage message({projectContainer});

    EXPECT_CALL(mockClangCodeModelServer, registerProjectPartsForEditor(message))
        .Times(1);

    serverProxy.registerProjectPartsForEditor(message);
    scheduleServerMessages();
}

TEST_F(ClientServerInProcess, SendUnregisterProjectPartsForEditorMessage)
{
    ClangBackEnd::UnregisterProjectPartsForEditorMessage message({Utf8StringLiteral(TESTDATA_DIR"/complete.pro")});

    EXPECT_CALL(mockClangCodeModelServer, unregisterProjectPartsForEditor(message))
        .Times(1);

    serverProxy.unregisterProjectPartsForEditor(message);
    scheduleServerMessages();
}

TEST_F(ClientServerInProcess, UpdateVisibleTranslationUnitsMessage)
{
    ClangBackEnd::UpdateVisibleTranslationUnitsMessage message(Utf8StringLiteral(TESTDATA_DIR"/fileone.cpp"),
                                                               {Utf8StringLiteral(TESTDATA_DIR"/fileone.cpp"),
                                                                Utf8StringLiteral(TESTDATA_DIR"/filetwo.cpp")});

    EXPECT_CALL(mockClangCodeModelServer, updateVisibleTranslationUnits(message))
        .Times(1);

    serverProxy.updateVisibleTranslationUnits(message);
    scheduleServerMessages();
}

TEST_F(ClientServerInProcess, SendDocumentAnnotationsChangedMessage)
{
    ClangBackEnd::TokenInfoContainer tokenInfo(1, 1, 1, {ClangBackEnd::HighlightingType::Keyword, {}});
    ClangBackEnd::DiagnosticContainer diagnostic(Utf8StringLiteral("don't do that"),
                                                Utf8StringLiteral("warning"),
                                                {Utf8StringLiteral("-Wpadded"), Utf8StringLiteral("-Wno-padded")},
                                                ClangBackEnd::DiagnosticSeverity::Warning,
                                                {Utf8StringLiteral("foo.cpp"), 20u, 103u},
                                                {{{Utf8StringLiteral("foo.cpp"), 20u, 103u}, {Utf8StringLiteral("foo.cpp"), 20u, 110u}}},
                                                {},
                                                {});

    ClangBackEnd::DocumentAnnotationsChangedMessage message(fileContainer,
                                                            {diagnostic},
                                                            {},
                                                            {tokenInfo},
                                                            QVector<SourceRangeContainer>());



    EXPECT_CALL(mockClangCodeModelClient, documentAnnotationsChanged(message))
        .Times(1);

    clientProxy.documentAnnotationsChanged(message);
    scheduleClientMessages();
}

ClientServerInProcess::ClientServerInProcess()
    : serverProxy(&mockClangCodeModelClient, &buffer),
      clientProxy(&mockClangCodeModelServer, &buffer)
{
}

void ClientServerInProcess::SetUp()
{
    buffer.open(QIODevice::ReadWrite);
}

void ClientServerInProcess::TearDown()
{
    buffer.close();
}

void ClientServerInProcess::scheduleServerMessages()
{
    buffer.seek(0);
    clientProxy.readMessages();
    buffer.buffer().clear();
}

void ClientServerInProcess::scheduleClientMessages()
{
    buffer.seek(0);
    serverProxy.readMessages();
    buffer.buffer().clear();
}

}