/*
 * barrier -- mouse and keyboard sharing utility
 * Copyright (C) 2012-2016 Symless Ltd.
 * Copyright (C) 2012 Nick Bolton
 *
 * This package is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * found in the file LICENSE that should have accompanied this file.
 *
 * This package is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

// TODO: fix, tests failing intermittently on mac.
#ifndef WINAPI_CARBON

#define BARRIER_TEST_ENV

#include "test/global/TestEventQueue.h"
#include "ipc/IpcServer.h"
#include "ipc/IpcClient.h"
#include "ipc/IpcServerProxy.h"
#include "ipc/IpcMessage.h"
#include "ipc/IpcClientProxy.h"
#include "ipc/Ipc.h"
#include "net/SocketMultiplexer.h"
#include "mt/Thread.h"
#include "arch/Arch.h"
#include "base/String.h"
#include "base/Log.h"
#include "base/EventQueue.h"
#include "base/TMethodEventJob.h"

#include "test/global/gtest.h"

#define TEST_IPC_PORT 24802

class IpcTests : public ::testing::Test
{
public:
    IpcTests();
    virtual ~IpcTests();

    void                connectToServer_handleMessageReceived(const Event&, void*);
    void                sendMessageToServer_serverHandleMessageReceived(const Event&, void*);
    void                sendMessageToClient_serverHandleClientConnected(const Event&, void*);
    void                sendMessageToClient_clientHandleMessageReceived(const Event&, void*);

public:
    SocketMultiplexer    m_multiplexer;
    bool                m_connectToServer_helloMessageReceived;
    bool                m_connectToServer_hasClientNode;
    IpcServer*            m_connectToServer_server;
    String                m_sendMessageToServer_receivedString;
    String                m_sendMessageToClient_receivedString;
    IpcClient*            m_sendMessageToServer_client;
    IpcServer*            m_sendMessageToClient_server;
    TestEventQueue        m_events;

};

TEST_F(IpcTests, connectToServer)
{
    SocketMultiplexer socketMultiplexer;
    IpcServer server(&m_events, &socketMultiplexer, TEST_IPC_PORT);
    server.listen();
    m_connectToServer_server = &server;

    m_events.adoptHandler(
        m_events.forIpcServer().messageReceived(), &server,
        new TMethodEventJob<IpcTests>(
        this, &IpcTests::connectToServer_handleMessageReceived));

    IpcClient client(&m_events, &socketMultiplexer, TEST_IPC_PORT);
    client.connect();

    m_events.initQuitTimeout(5);
    m_events.loop();
    m_events.removeHandler(m_events.forIpcServer().messageReceived(), &server);
    m_events.cleanupQuitTimeout();

    EXPECT_EQ(true, m_connectToServer_helloMessageReceived);
    EXPECT_EQ(true, m_connectToServer_hasClientNode);
}

TEST_F(IpcTests, sendMessageToServer)
{
    SocketMultiplexer socketMultiplexer;
    IpcServer server(&m_events, &socketMultiplexer, TEST_IPC_PORT);
    server.listen();

    // event handler sends "test" command to server.
    m_events.adoptHandler(
        m_events.forIpcServer().messageReceived(), &server,
        new TMethodEventJob<IpcTests>(
        this, &IpcTests::sendMessageToServer_serverHandleMessageReceived));

    IpcClient client(&m_events, &socketMultiplexer, TEST_IPC_PORT);
    client.connect();
    m_sendMessageToServer_client = &client;

    m_events.initQuitTimeout(5);
    m_events.loop();
    m_events.removeHandler(m_events.forIpcServer().messageReceived(), &server);
    m_events.cleanupQuitTimeout();

    EXPECT_EQ("test", m_sendMessageToServer_receivedString);
}

TEST_F(IpcTests, sendMessageToClient)
{
    SocketMultiplexer socketMultiplexer;
    IpcServer server(&m_events, &socketMultiplexer, TEST_IPC_PORT);
    server.listen();
    m_sendMessageToClient_server = &server;

    // event handler sends "test" log line to client.
    m_events.adoptHandler(
        m_events.forIpcServer().messageReceived(), &server,
        new TMethodEventJob<IpcTests>(
        this, &IpcTests::sendMessageToClient_serverHandleClientConnected));

    IpcClient client(&m_events, &socketMultiplexer, TEST_IPC_PORT);
    client.connect();

    m_events.adoptHandler(
        m_events.forIpcClient().messageReceived(), &client,
        new TMethodEventJob<IpcTests>(
        this, &IpcTests::sendMessageToClient_clientHandleMessageReceived));

    m_events.initQuitTimeout(5);
    m_events.loop();
    m_events.removeHandler(m_events.forIpcServer().messageReceived(), &server);
    m_events.removeHandler(m_events.forIpcClient().messageReceived(), &client);
    m_events.cleanupQuitTimeout();

    EXPECT_EQ("test", m_sendMessageToClient_receivedString);
}

IpcTests::IpcTests() :
m_connectToServer_helloMessageReceived(false),
m_connectToServer_hasClientNode(false),
m_connectToServer_server(nullptr),
m_sendMessageToClient_server(nullptr),
m_sendMessageToServer_client(nullptr)
{
}

IpcTests::~IpcTests()
{
}

void
IpcTests::connectToServer_handleMessageReceived(const Event& e, void*)
{
    IpcMessage* m = static_cast<IpcMessage*>(e.getDataObject());
    if (m->type() == kIpcHello) {
        m_connectToServer_hasClientNode =
            m_connectToServer_server->hasClients(kIpcClientNode);
        m_connectToServer_helloMessageReceived = true;
        m_events.raiseQuitEvent();
    }
}

void
IpcTests::sendMessageToServer_serverHandleMessageReceived(const Event& e, void*)
{
    IpcMessage* m = static_cast<IpcMessage*>(e.getDataObject());
    if (m->type() == kIpcHello) {
        LOG((CLOG_DEBUG "client said hello, sending test to server"));
        IpcCommandMessage m("test", true);
        m_sendMessageToServer_client->send(m);
    }
    else if (m->type() == kIpcCommand) {
        IpcCommandMessage* cm = static_cast<IpcCommandMessage*>(m);
        LOG((CLOG_DEBUG "got ipc command message, %d", cm->command().c_str()));
        m_sendMessageToServer_receivedString = cm->command();
        m_events.raiseQuitEvent();
    }
}

void
IpcTests::sendMessageToClient_serverHandleClientConnected(const Event& e, void*)
{
    IpcMessage* m = static_cast<IpcMessage*>(e.getDataObject());
    if (m->type() == kIpcHello) {
        LOG((CLOG_DEBUG "client said hello, sending test to client"));
        IpcLogLineMessage m("test");
        m_sendMessageToClient_server->send(m, kIpcClientNode);
    }
}

void
IpcTests::sendMessageToClient_clientHandleMessageReceived(const Event& e, void*)
{
    IpcMessage* m = static_cast<IpcMessage*>(e.getDataObject());
    if (m->type() == kIpcLogLine) {
        IpcLogLineMessage* llm = static_cast<IpcLogLineMessage*>(m);
        LOG((CLOG_DEBUG "got ipc log message, %d", llm->logLine().c_str()));
        m_sendMessageToClient_receivedString = llm->logLine();
        m_events.raiseQuitEvent();
    }
}

#endif // WINAPI_CARBON