/***
* ==++==
*
* Copyright (c) Microsoft Corporation. All rights reserved. 
* Licensed 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
* 
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* ==--==
* =+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
*
* client_construction.cpp
*
* Tests cases for covering creating websocket_clients.
*
* =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
****/

#include "stdafx.h"

#if defined(__cplusplus_winrt) || !defined(_M_ARM)

using namespace concurrency::streams;

using namespace web;
using namespace web::websockets;
using namespace web::websockets::client;

using namespace tests::functional::websocket::utilities;

namespace tests { namespace functional { namespace websocket { namespace client {

SUITE(client_construction)
{

// Helper function verifies that when constructing a websocket_client with invalid
// URI std::invalid_argument is thrown.
static void verify_client_invalid_argument(const uri &address)
{
    try
    {
        websocket_client client;
        client.connect(address).wait();
        VERIFY_IS_TRUE(false);
    } catch(std::invalid_argument &)
    {
        // expected
    }
}

TEST_FIXTURE(uri_address, client_construction_error_cases)
{
    uri address(U("notws://localhost:34567/"));

    // Invalid scheme.
    verify_client_invalid_argument(address);

    // empty host.
    address = uri(U("ws://:34567/"));
    verify_client_invalid_argument(address);
}

// Verify that we can read the config from the websocket_client
TEST_FIXTURE(uri_address, get_client_config)
{
    websocket_client_config config;

    web::credentials cred(U("username"), U("password"));
    config.set_credentials(cred);
    websocket_client client(config);

    const websocket_client_config& config2 = client.config();
    VERIFY_ARE_EQUAL(config2.credentials().username(), cred.username());
}

// Verify that we can read the config from the websocket_callback_client
TEST_FIXTURE(uri_address, get_client_config_callback_client)
{
    websocket_client_config config;

    web::credentials cred(U("username"), U("password"));
    config.set_credentials(cred);
    websocket_callback_client client(config);

    const websocket_client_config& config2 = client.config();
    VERIFY_ARE_EQUAL(config2.credentials().username(), cred.username());
}


// Verify that we can get the baseuri from websocket_client connect.
TEST_FIXTURE(uri_address, uri_test)
{
    websocket_client client1;
    VERIFY_ARE_EQUAL(client1.uri(), U("/"));

    test_websocket_server server;
    client1.connect(m_uri).wait();
    VERIFY_ARE_EQUAL(client1.uri(), m_uri);
    client1.close().wait();

    websocket_client_config config;
    websocket_client client2(config);
    VERIFY_ARE_EQUAL(client2.uri(), U("/"));

    client2.connect(m_uri).wait();
    VERIFY_ARE_EQUAL(client2.uri(), m_uri);
    client2.close().wait();
}

TEST_FIXTURE(uri_address, move_operations)
{
    std::string body("hello");
    std::vector<unsigned char> body_vec(body.begin(), body.end());

    test_websocket_server server;
    websocket_client client;

    client.connect(m_uri).wait();

    // Move constructor
    websocket_client client2 = std::move(client);

    server.next_message([&](test_websocket_msg msg) // Handler to verify the message sent by the client.
    {
        websocket_asserts::assert_message_equals(msg, body, test_websocket_message_type::WEB_SOCKET_UTF8_MESSAGE_TYPE);
    });

    websocket_outgoing_message msg;
    msg.set_utf8_message(body);
    client2.send(std::move(msg)).wait();

    auto t = client2.receive().then([&](websocket_incoming_message ret_msg)
    {
        VERIFY_ARE_EQUAL(ret_msg.length(), body.length());
        auto ret_str = ret_msg.extract_string().get();

        VERIFY_ARE_EQUAL(body.compare(ret_str), 0);
        VERIFY_ARE_EQUAL(ret_msg.message_type(), websocket_message_type::text_message);
    });

    test_websocket_msg rmsg;
    rmsg.set_data(body_vec);
    rmsg.set_msg_type(test_websocket_message_type::WEB_SOCKET_UTF8_MESSAGE_TYPE);
    server.send_msg(rmsg);
    t.wait();

    // Move assignment
    client = std::move(client2);
    server.next_message([&](test_websocket_msg msg) // Handler to verify the message sent by the client.
    {
        websocket_asserts::assert_message_equals(msg, body, test_websocket_message_type::WEB_SOCKET_UTF8_MESSAGE_TYPE);
    });

    websocket_outgoing_message msg1;
    msg1.set_utf8_message(body);
    client.send(std::move(msg1)).wait();

    test_websocket_msg rmsg1;
    rmsg1.set_data(body_vec);
    rmsg1.set_msg_type(test_websocket_message_type::WEB_SOCKET_UTF8_MESSAGE_TYPE);
    server.send_msg(rmsg1);
    auto t1 = client.receive().then([&](websocket_incoming_message ret_msg)
    {
        VERIFY_ARE_EQUAL(ret_msg.length(), body.length());
        auto ret_str = ret_msg.extract_string().get();

        VERIFY_ARE_EQUAL(body.compare(ret_str), 0);
        VERIFY_ARE_EQUAL(ret_msg.message_type(), websocket_message_type::text_message);
    });
    t1.wait();
    client.close().wait();
}

void header_test_impl(const uri &address, const utility::string_t &headerName, const utility::string_t &headerValue, const utility::string_t &expectedHeaderValue = U(""))
{
    test_websocket_server server;
    websocket_client_config config;
    utility::string_t expectedValue = headerValue;
    if (!expectedHeaderValue.empty())
    {
        expectedValue = expectedHeaderValue;
    }
    config.headers().add(headerName, headerValue);
    websocket_client client(config);

    server.set_http_handler([&](test_http_request request)
    {
        test_http_response resp;
        if (request->get_header_val(utility::conversions::to_utf8string(headerName)).compare(utility::conversions::to_utf8string(expectedValue)) == 0)
            resp.set_status_code(200); // Handshake request will be completed only if header match succeeds.
        else
            resp.set_status_code(400); // Else fail the handshake, websocket client connect will fail in this case.
        return resp;
    });
    client.connect(address).wait();
    client.close().wait();
}

TEST_FIXTURE(uri_address, connect_with_headers)
{
    header_test_impl(m_uri, U("HeaderTest"), U("ConnectSuccessfully"));
}

TEST_FIXTURE(uri_address, manually_set_protocol_header)
{
    utility::string_t headerName(U("Sec-WebSocket-Protocol"));
    header_test_impl(m_uri, headerName, U("myprotocol"));
    header_test_impl(m_uri, headerName, U("myprotocol2,"), U("myprotocol2"));
    header_test_impl(m_uri, headerName, U("myprotocol2,protocol3"), U("myprotocol2, protocol3"));
    header_test_impl(m_uri, headerName, U("myprotocol2, protocol3, protocol6,,"), U("myprotocol2, protocol3, protocol6"));
}

TEST_FIXTURE(uri_address, set_subprotocol)
{
    test_websocket_server server;
    websocket_client_config config;

    utility::string_t expected1(U("pro1"));
    config.add_subprotocol(expected1);
    VERIFY_ARE_EQUAL(1, config.subprotocols().size());
    VERIFY_ARE_EQUAL(expected1, config.subprotocols()[0]);

    utility::string_t expected2(U("second"));
    config.add_subprotocol(expected2);
    VERIFY_ARE_EQUAL(2, config.subprotocols().size());
    VERIFY_ARE_EQUAL(expected1, config.subprotocols()[0]);
    VERIFY_ARE_EQUAL(expected2, config.subprotocols()[1]);

    websocket_client client(config);
    server.set_http_handler([&](test_http_request request)
    {
        test_http_response resp;
        if (request->get_header_val(utility::conversions::to_utf8string(U("Sec-WebSocket-Protocol"))).compare(utility::conversions::to_utf8string(expected1 + U(", ") + expected2)) == 0)
            resp.set_status_code(200); // Handshake request will be completed only if header match succeeds.
        else
            resp.set_status_code(400); // Else fail the handshake, websocket client connect will fail in this case.
        return resp;
    });

    client.connect(m_uri).wait();
    client.close().wait();
}

} // SUITE(client_construction)

}}}}

#endif