/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 */

#include <errno.h>
#include <stdio.h>
#include <string.h>

#ifdef _WIN32
# include <io.h>
#else
# include <unistd.h>
#endif

#include "uv.h"
#include "runner.h"
#include "task.h"

/* Actual tests and helpers are defined in test-list.h */
#include "test-list.h"

int ipc_helper(int listen_after_write);
int ipc_helper_heavy_traffic_deadlock_bug(void);
int ipc_helper_tcp_connection(void);
int ipc_helper_closed_handle(void);
int ipc_send_recv_helper(void);
int ipc_helper_bind_twice(void);
int stdio_over_pipes_helper(void);
int spawn_stdin_stdout(void);
int spawn_tcp_server_helper(void);

static int maybe_run_test(int argc, char **argv);


int main(int argc, char **argv) {
  if (platform_init(argc, argv))
    return EXIT_FAILURE;

  argv = uv_setup_args(argc, argv);

  switch (argc) {
  case 1: return run_tests(0);
  case 2: return maybe_run_test(argc, argv);
  case 3: return run_test_part(argv[1], argv[2]);
  case 4: return maybe_run_test(argc, argv);
  default:
    fprintf(stderr, "Too many arguments.\n");
    fflush(stderr);
    return EXIT_FAILURE;
  }

  return EXIT_SUCCESS;
}


static int maybe_run_test(int argc, char **argv) {
  if (strcmp(argv[1], "--list") == 0) {
    print_tests(stdout);
    return 0;
  }

  if (strcmp(argv[1], "ipc_helper_listen_before_write") == 0) {
    return ipc_helper(0);
  }

  if (strcmp(argv[1], "ipc_helper_listen_after_write") == 0) {
    return ipc_helper(1);
  }

  if (strcmp(argv[1], "ipc_helper_heavy_traffic_deadlock_bug") == 0) {
    return ipc_helper_heavy_traffic_deadlock_bug();
  }

  if (strcmp(argv[1], "ipc_send_recv_helper") == 0) {
    return ipc_send_recv_helper();
  }

  if (strcmp(argv[1], "ipc_helper_tcp_connection") == 0) {
    return ipc_helper_tcp_connection();
  }

  if (strcmp(argv[1], "ipc_helper_closed_handle") == 0) {
    return ipc_helper_closed_handle();
  }

  if (strcmp(argv[1], "ipc_helper_bind_twice") == 0) {
    return ipc_helper_bind_twice();
  }

  if (strcmp(argv[1], "stdio_over_pipes_helper") == 0) {
    return stdio_over_pipes_helper();
  }

  if (strcmp(argv[1], "spawn_helper1") == 0) {
    return 1;
  }

  if (strcmp(argv[1], "spawn_helper2") == 0) {
    printf("hello world\n");
    return 1;
  }

  if (strcmp(argv[1], "spawn_tcp_server_helper") == 0) {
    return spawn_tcp_server_helper();
  }

  if (strcmp(argv[1], "spawn_helper3") == 0) {
    char buffer[256];
    ASSERT(buffer == fgets(buffer, sizeof(buffer) - 1, stdin));
    buffer[sizeof(buffer) - 1] = '\0';
    fputs(buffer, stdout);
    return 1;
  }

  if (strcmp(argv[1], "spawn_helper4") == 0) {
    /* Never surrender, never return! */
    while (1) uv_sleep(10000);
  }

  if (strcmp(argv[1], "spawn_helper5") == 0) {
    const char out[] = "fourth stdio!\n";
#ifdef _WIN32
    DWORD bytes;
    WriteFile((HANDLE) _get_osfhandle(3), out, sizeof(out) - 1, &bytes, NULL);
#else
    {
      ssize_t r;

      do
        r = write(3, out, sizeof(out) - 1);
      while (r == -1 && errno == EINTR);

      fsync(3);
    }
#endif
    return 1;
  }

  if (strcmp(argv[1], "spawn_helper6") == 0) {
    int r;

    r = fprintf(stdout, "hello world\n");
    ASSERT(r > 0);

    r = fprintf(stderr, "hello errworld\n");
    ASSERT(r > 0);

    return 1;
  }

  if (strcmp(argv[1], "spawn_helper7") == 0) {
    int r;
    char *test;
    /* Test if the test value from the parent is still set */
    test = getenv("ENV_TEST");
    ASSERT(test != NULL);

    r = fprintf(stdout, "%s", test);
    ASSERT(r > 0);

    return 1;
  }

#ifndef _WIN32
  if (strcmp(argv[1], "spawn_helper8") == 0) {
    int fd;
    ASSERT(sizeof(fd) == read(0, &fd, sizeof(fd)));
    ASSERT(fd > 2);
    ASSERT(-1 == write(fd, "x", 1));

    return 1;
  }
#endif  /* !_WIN32 */

  if (strcmp(argv[1], "spawn_helper9") == 0) {
    return spawn_stdin_stdout();
  }

#ifndef _WIN32
  if (strcmp(argv[1], "spawn_helper_setuid_setgid") == 0) {
    uv_uid_t uid = atoi(argv[2]);
    uv_gid_t gid = atoi(argv[3]);

    ASSERT(uid == getuid());
    ASSERT(gid == getgid());

    return 1;
  }
#endif  /* !_WIN32 */

  return run_test(argv[1], 0, 1);
}