/*
 *
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 * 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.
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 * 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
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 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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#include "test/core/end2end/end2end_tests.h"

#include <string.h>

#include <grpc/support/alloc.h>
#include <grpc/support/log.h>
#include <grpc/support/sync.h>
#include <grpc/support/thd.h>
#include <grpc/support/useful.h>
#include "src/core/ext/client_config/client_channel.h"
#include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
#include "src/core/lib/channel/compress_filter.h"
#include "src/core/lib/channel/connected_channel.h"
#include "src/core/lib/channel/http_client_filter.h"
#include "src/core/lib/channel/http_server_filter.h"
#include "src/core/lib/iomgr/endpoint_pair.h"
#include "src/core/lib/iomgr/iomgr.h"
#include "src/core/lib/support/env.h"
#include "src/core/lib/surface/channel.h"
#include "src/core/lib/surface/server.h"
#include "test/core/util/port.h"
#include "test/core/util/test_config.h"

/* chttp2 transport that is immediately available (used for testing
   connected_channel without a client_channel */

static void server_setup_transport(void *ts, grpc_transport *transport) {
  grpc_end2end_test_fixture *f = ts;
  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
  grpc_server_setup_transport(&exec_ctx, f->server, transport,
                              grpc_server_get_channel_args(f->server));
  grpc_exec_ctx_finish(&exec_ctx);
}

typedef struct {
  grpc_end2end_test_fixture *f;
  grpc_channel_args *client_args;
} sp_client_setup;

static void client_setup_transport(grpc_exec_ctx *exec_ctx, void *ts,
                                   grpc_transport *transport) {
  sp_client_setup *cs = ts;

  cs->f->client =
      grpc_channel_create(exec_ctx, "socketpair-target", cs->client_args,
                          GRPC_CLIENT_DIRECT_CHANNEL, transport);
}

static grpc_end2end_test_fixture chttp2_create_fixture_socketpair(
    grpc_channel_args *client_args, grpc_channel_args *server_args) {
  grpc_endpoint_pair *sfd = gpr_malloc(sizeof(grpc_endpoint_pair));

  grpc_end2end_test_fixture f;
  memset(&f, 0, sizeof(f));
  f.fixture_data = sfd;
  f.cq = grpc_completion_queue_create(NULL);

  *sfd = grpc_iomgr_create_endpoint_pair("fixture", 65536);

  return f;
}

static void chttp2_init_client_socketpair(grpc_end2end_test_fixture *f,
                                          grpc_channel_args *client_args) {
  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
  grpc_endpoint_pair *sfd = f->fixture_data;
  grpc_transport *transport;
  sp_client_setup cs;
  cs.client_args = client_args;
  cs.f = f;
  transport =
      grpc_create_chttp2_transport(&exec_ctx, client_args, sfd->client, 1);
  client_setup_transport(&exec_ctx, &cs, transport);
  GPR_ASSERT(f->client);
  grpc_chttp2_transport_start_reading(&exec_ctx, transport, NULL, 0);
  grpc_exec_ctx_finish(&exec_ctx);
}

static void chttp2_init_server_socketpair(grpc_end2end_test_fixture *f,
                                          grpc_channel_args *server_args) {
  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
  grpc_endpoint_pair *sfd = f->fixture_data;
  grpc_transport *transport;
  GPR_ASSERT(!f->server);
  f->server = grpc_server_create(server_args, NULL);
  grpc_server_register_completion_queue(f->server, f->cq, NULL);
  grpc_server_start(f->server);
  transport =
      grpc_create_chttp2_transport(&exec_ctx, server_args, sfd->server, 0);
  server_setup_transport(f, transport);
  grpc_chttp2_transport_start_reading(&exec_ctx, transport, NULL, 0);
  grpc_exec_ctx_finish(&exec_ctx);
}

static void chttp2_tear_down_socketpair(grpc_end2end_test_fixture *f) {
  gpr_free(f->fixture_data);
}

/* All test configurations */
static grpc_end2end_test_config configs[] = {
    {"chttp2/socketpair", 0, chttp2_create_fixture_socketpair,
     chttp2_init_client_socketpair, chttp2_init_server_socketpair,
     chttp2_tear_down_socketpair},
};

int main(int argc, char **argv) {
  size_t i;
  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;

  /* force tracing on, with a value to force many
     code paths in trace.c to be taken */
  gpr_setenv("GRPC_TRACE", "doesnt-exist,http,all");
#ifdef GPR_POSIX_SOCKET
  g_fixture_slowdown_factor = isatty(STDOUT_FILENO) ? 10.0 : 1.0;
#else
  g_fixture_slowdown_factor = 10.0;
#endif

  grpc_test_init(argc, argv);
  grpc_end2end_tests_pre_init();
  grpc_init();
  grpc_exec_ctx_finish(&exec_ctx);

  GPR_ASSERT(0 == grpc_tracer_set_enabled("also-doesnt-exist", 0));
  GPR_ASSERT(1 == grpc_tracer_set_enabled("http", 1));
  GPR_ASSERT(1 == grpc_tracer_set_enabled("all", 1));

  for (i = 0; i < sizeof(configs) / sizeof(*configs); i++) {
    grpc_end2end_tests(argc, argv, configs[i]);
  }

  grpc_shutdown();

  return 0;
}
