<?php
/*
 *
 * Copyright 2015, Google Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */
class EndToEndTest extends PHPUnit_Framework_TestCase{
  public function setUp() {
    $this->server = new Grpc\Server([]);
    $this->port = $this->server->addHttp2Port('0.0.0.0:0');
    $this->channel = new Grpc\Channel('localhost:' . $this->port, []);
    $this->server->start();
  }

  public function tearDown() {
    unset($this->channel);
    unset($this->server);
  }

  public function testSimpleRequestBody() {
    $deadline = Grpc\Timeval::infFuture();
    $status_text = 'xyz';
    $call = new Grpc\Call($this->channel,
                          'dummy_method',
                          $deadline);

    $event = $call->startBatch([
        Grpc\OP_SEND_INITIAL_METADATA => [],
        Grpc\OP_SEND_CLOSE_FROM_CLIENT => true
                                       ]);

    $this->assertTrue($event->send_metadata);
    $this->assertTrue($event->send_close);

    $event = $this->server->requestCall();
    $this->assertSame('dummy_method', $event->method);
    $server_call = $event->call;

    $event = $server_call->startBatch([
        Grpc\OP_SEND_INITIAL_METADATA => [],
        Grpc\OP_SEND_STATUS_FROM_SERVER => [
            'metadata' => [],
            'code' => Grpc\STATUS_OK,
            'details' => $status_text
                                            ],
        Grpc\OP_RECV_CLOSE_ON_SERVER => true
                                        ]);

    $this->assertTrue($event->send_metadata);
    $this->assertTrue($event->send_status);
    $this->assertFalse($event->cancelled);

    $event = $call->startBatch([
        Grpc\OP_RECV_INITIAL_METADATA => true,
        Grpc\OP_RECV_STATUS_ON_CLIENT => true
                                 ]);

    $status = $event->status;
    $this->assertSame([], $status->metadata);
    $this->assertSame(Grpc\STATUS_OK, $status->code);
    $this->assertSame($status_text, $status->details);

    unset($call);
    unset($server_call);
  }

  public function testClientServerFullRequestResponse() {
    $deadline = Grpc\Timeval::infFuture();
    $req_text = 'client_server_full_request_response';
    $reply_text = 'reply:client_server_full_request_response';
    $status_text = 'status:client_server_full_response_text';

    $call = new Grpc\Call($this->channel,
                          'dummy_method',
                          $deadline);

    $event = $call->startBatch([
        Grpc\OP_SEND_INITIAL_METADATA => [],
        Grpc\OP_SEND_CLOSE_FROM_CLIENT => true,
        Grpc\OP_SEND_MESSAGE => $req_text
                                       ]);

    $this->assertTrue($event->send_metadata);
    $this->assertTrue($event->send_close);
    $this->assertTrue($event->send_message);

    $event = $this->server->requestCall();
    $this->assertSame('dummy_method', $event->method);
    $server_call = $event->call;

    $event = $server_call->startBatch([
        Grpc\OP_SEND_INITIAL_METADATA => [],
        Grpc\OP_SEND_MESSAGE => $reply_text,
        Grpc\OP_SEND_STATUS_FROM_SERVER => [
            'metadata' => [],
            'code' => Grpc\STATUS_OK,
            'details' => $status_text
                                            ],
        Grpc\OP_RECV_MESSAGE => true,
        Grpc\OP_RECV_CLOSE_ON_SERVER => true,
                                        ]);

    $this->assertTrue($event->send_metadata);
    $this->assertTrue($event->send_status);
    $this->assertTrue($event->send_message);
    $this->assertFalse($event->cancelled);
    $this->assertSame($req_text, $event->message);

    $event = $call->startBatch([
        Grpc\OP_RECV_INITIAL_METADATA => true,
        Grpc\OP_RECV_MESSAGE => true,
        Grpc\OP_RECV_STATUS_ON_CLIENT => true,
                                       ]);

    $this->assertSame([], $event->metadata);
    $this->assertSame($reply_text, $event->message);
    $status = $event->status;
    $this->assertSame([], $status->metadata);
    $this->assertSame(Grpc\STATUS_OK, $status->code);
    $this->assertSame($status_text, $status->details);

    unset($call);
    unset($server_call);
  }

  public function testGetTarget() {
    $this->assertTrue(is_string($this->channel->getTarget()));
  }
}