/*
 * Check: a unit test framework for C
 * Copyright (C) 2001, 2002 Arien Malec
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 */

#include "../lib/libcompat.h"

#include <stdlib.h>
#include <stdio.h>
#include <check.h>
#if ENABLE_SUBUNIT
#include <subunit/child.h>
#endif

#include "check_error.h"
#include "check_list.h"
#include "check_impl.h"
#include "check_log.h"
#include "check_print.h"
#include "check_str.h"

/*
 * If a log file is specified to be "-", then instead of
 * opening a file the log output is printed to stdout.
 */
#define STDOUT_OVERRIDE_LOG_FILE_NAME "-"

static void srunner_send_evt (SRunner * sr, void *obj, enum cl_event evt);

void
srunner_set_log (SRunner * sr, const char *fname)
{
  if (sr->log_fname)
    return;
  sr->log_fname = fname;
}

int
srunner_has_log (SRunner * sr)
{
  return srunner_log_fname (sr) != NULL;
}

const char *
srunner_log_fname (SRunner * sr)
{
  /* check if log filename have been set explicitly */
  if (sr->log_fname != NULL)
    return sr->log_fname;

  return getenv ("CK_LOG_FILE_NAME");
}


void
srunner_set_xml (SRunner * sr, const char *fname)
{
  if (sr->xml_fname)
    return;
  sr->xml_fname = fname;
}

int
srunner_has_xml (SRunner * sr)
{
  return srunner_xml_fname (sr) != NULL;
}

const char *
srunner_xml_fname (SRunner * sr)
{
  /* check if XML log filename have been set explicitly */
  if (sr->xml_fname != NULL) {
    return sr->xml_fname;
  }

  return getenv ("CK_XML_LOG_FILE_NAME");
}

void
srunner_set_tap (SRunner * sr, const char *fname)
{
  if (sr->tap_fname)
    return;
  sr->tap_fname = fname;
}

int
srunner_has_tap (SRunner * sr)
{
  return srunner_tap_fname (sr) != NULL;
}

const char *
srunner_tap_fname (SRunner * sr)
{
  /* check if tap log filename have been set explicitly */
  if (sr->tap_fname != NULL) {
    return sr->tap_fname;
  }

  return getenv ("CK_TAP_LOG_FILE_NAME");
}

void
srunner_register_lfun (SRunner * sr, FILE * lfile, int close,
    LFun lfun, enum print_output printmode)
{
  Log *l = (Log *) emalloc (sizeof (Log));

  if (printmode == CK_ENV) {
    printmode = get_env_printmode ();
  }

  l->lfile = lfile;
  l->lfun = lfun;
  l->close = close;
  l->mode = printmode;
  check_list_add_end (sr->loglst, l);
  return;
}

void
log_srunner_start (SRunner * sr)
{
  srunner_send_evt (sr, NULL, CLSTART_SR);
}

void
log_srunner_end (SRunner * sr)
{
  srunner_send_evt (sr, NULL, CLEND_SR);
}

void
log_suite_start (SRunner * sr, Suite * s)
{
  srunner_send_evt (sr, s, CLSTART_S);
}

void
log_suite_end (SRunner * sr, Suite * s)
{
  srunner_send_evt (sr, s, CLEND_S);
}

void
log_test_start (SRunner * sr, TCase * tc, TF * tfun)
{
  char buffer[100];

  snprintf (buffer, 99, "%s:%s", tc->name, tfun->name);
  srunner_send_evt (sr, buffer, CLSTART_T);
}

void
log_test_end (SRunner * sr, TestResult * tr)
{
  srunner_send_evt (sr, tr, CLEND_T);
}

static void
srunner_send_evt (SRunner * sr, void *obj, enum cl_event evt)
{
  List *l;
  Log *lg;

  l = sr->loglst;
  for (check_list_front (l); !check_list_at_end (l); check_list_advance (l)) {
    lg = (Log *) check_list_val (l);
    fflush (lg->lfile);
    lg->lfun (sr, lg->lfile, lg->mode, obj, evt);
    fflush (lg->lfile);
  }
}

void
stdout_lfun (SRunner * sr, FILE * file, enum print_output printmode,
    void *obj, enum cl_event evt)
{
  Suite *s;

  switch (evt) {
    case CLINITLOG_SR:
      break;
    case CLENDLOG_SR:
      break;
    case CLSTART_SR:
      if (printmode > CK_SILENT) {
        fprintf (file, "Running suite(s):");
      }
      break;
    case CLSTART_S:
      s = (Suite *) obj;
      if (printmode > CK_SILENT) {
        fprintf (file, " %s\n", s->name);
      }
      break;
    case CLEND_SR:
      if (printmode > CK_SILENT) {
        /* we don't want a newline before printing here, newlines should
           come after printing a string, not before.  it's better to add
           the newline above in CLSTART_S.
         */
        srunner_fprint (file, sr, printmode);
      }
      break;
    case CLEND_S:
      break;
    case CLSTART_T:
      break;
    case CLEND_T:
      break;
    default:
      eprintf ("Bad event type received in stdout_lfun", __FILE__, __LINE__);
  }


}

void
lfile_lfun (SRunner * sr, FILE * file,
    enum print_output printmode CK_ATTRIBUTE_UNUSED, void *obj,
    enum cl_event evt)
{
  TestResult *tr;
  Suite *s;

  switch (evt) {
    case CLINITLOG_SR:
      break;
    case CLENDLOG_SR:
      break;
    case CLSTART_SR:
      break;
    case CLSTART_S:
      s = (Suite *) obj;
      fprintf (file, "Running suite %s\n", s->name);
      break;
    case CLEND_SR:
      fprintf (file, "Results for all suites run:\n");
      srunner_fprint (file, sr, CK_MINIMAL);
      break;
    case CLEND_S:
      break;
    case CLSTART_T:
      break;
    case CLEND_T:
      tr = (TestResult *) obj;
      tr_fprint (file, tr, CK_VERBOSE);
      break;
    default:
      eprintf ("Bad event type received in lfile_lfun", __FILE__, __LINE__);
  }


}

void
xml_lfun (SRunner * sr CK_ATTRIBUTE_UNUSED, FILE * file,
    enum print_output printmode CK_ATTRIBUTE_UNUSED, void *obj,
    enum cl_event evt)
{
  TestResult *tr;
  Suite *s;
  static struct timespec ts_start = { 0, 0 };
  static char t[sizeof "yyyy-mm-dd hh:mm:ss"] = { 0 };

  if (t[0] == 0) {
    struct timeval inittv;
    struct tm now;

    gettimeofday (&inittv, NULL);
    clock_gettime (check_get_clockid (), &ts_start);
    if (localtime_r ((const time_t *) &(inittv.tv_sec), &now) != NULL) {
      strftime (t, sizeof ("yyyy-mm-dd hh:mm:ss"), "%Y-%m-%d %H:%M:%S", &now);
    }
  }

  switch (evt) {
    case CLINITLOG_SR:
      fprintf (file, "<?xml version=\"1.0\"?>\n");
      fprintf (file,
          "<?xml-stylesheet type=\"text/xsl\" href=\"http://check.sourceforge.net/xml/check_unittest.xslt\"?>\n");
      fprintf (file,
          "<testsuites xmlns=\"http://check.sourceforge.net/ns\">\n");
      fprintf (file, "  <datetime>%s</datetime>\n", t);
      break;
    case CLENDLOG_SR:
    {
      struct timespec ts_end = { 0, 0 };
      unsigned long duration;

      /* calculate time the test were running */
      clock_gettime (check_get_clockid (), &ts_end);
      duration = (unsigned long) DIFF_IN_USEC (ts_start, ts_end);
      fprintf (file, "  <duration>%lu.%06lu</duration>\n",
          duration / US_PER_SEC, duration % US_PER_SEC);
      fprintf (file, "</testsuites>\n");
    }
      break;
    case CLSTART_SR:
      break;
    case CLSTART_S:
      s = (Suite *) obj;
      fprintf (file, "  <suite>\n");
      fprintf (file, "    <title>");
      fprint_xml_esc (file, s->name);
      fprintf (file, "</title>\n");
      break;
    case CLEND_SR:
      break;
    case CLEND_S:
      fprintf (file, "  </suite>\n");
      break;
    case CLSTART_T:
      break;
    case CLEND_T:
      tr = (TestResult *) obj;
      tr_xmlprint (file, tr, CK_VERBOSE);
      break;
    default:
      eprintf ("Bad event type received in xml_lfun", __FILE__, __LINE__);
  }

}

void
tap_lfun (SRunner * sr CK_ATTRIBUTE_UNUSED, FILE * file,
    enum print_output printmode CK_ATTRIBUTE_UNUSED, void *obj,
    enum cl_event evt)
{
  TestResult *tr;

  static int num_tests_run = 0;

  switch (evt) {
    case CLINITLOG_SR:
      /* As this is a new log file, reset the number of tests executed */
      num_tests_run = 0;
      break;
    case CLENDLOG_SR:
      /* Output the test plan as the last line */
      fprintf (file, "1..%d\n", num_tests_run);
      fflush (file);
      break;
    case CLSTART_SR:
      break;
    case CLSTART_S:
      break;
    case CLEND_SR:
      break;
    case CLEND_S:
      break;
    case CLSTART_T:
      break;
    case CLEND_T:
      /* Print the test result to the tap file */
      num_tests_run += 1;
      tr = (TestResult *) obj;
      fprintf (file, "%s %d - %s:%s:%s: %s\n",
          tr->rtype == CK_PASS ? "ok" : "not ok", num_tests_run,
          tr->file, tr->tcname, tr->tname, tr->msg);
      fflush (file);
      break;
    default:
      eprintf ("Bad event type received in tap_lfun", __FILE__, __LINE__);
  }
}

#if ENABLE_SUBUNIT
void
subunit_lfun (SRunner * sr, FILE * file, enum print_output printmode,
    void *obj, enum cl_event evt)
{
  TestResult *tr;
  char const *name;

  /* assert(printmode == CK_SUBUNIT); */

  switch (evt) {
    case CLINITLOG_SR:
      break;
    case CLENDLOG_SR:
      break;
    case CLSTART_SR:
      break;
    case CLSTART_S:
      break;
    case CLEND_SR:
      if (printmode > CK_SILENT) {
        fprintf (file, "\n");
        srunner_fprint (file, sr, printmode);
      }
      break;
    case CLEND_S:
      break;
    case CLSTART_T:
      name = (const char *) obj;
      subunit_test_start (name);
      break;
    case CLEND_T:
      tr = (TestResult *) obj;
      {
        char *name = ck_strdup_printf ("%s:%s", tr->tcname, tr->tname);
        char *msg = tr_short_str (tr);

        switch (tr->rtype) {
          case CK_PASS:
            subunit_test_pass (name);
            break;
          case CK_FAILURE:
            subunit_test_fail (name, msg);
            break;
          case CK_ERROR:
            subunit_test_error (name, msg);
            break;
          case CK_TEST_RESULT_INVALID:
          default:
            eprintf ("Bad result type in subunit_lfun", __FILE__, __LINE__);
            free (name);
            free (msg);
        }
      }
      break;
    default:
      eprintf ("Bad event type received in subunit_lfun", __FILE__, __LINE__);
  }
}
#endif

static FILE *
srunner_open_file (const char *filename)
{
  FILE *f = NULL;

  if (strcmp (filename, STDOUT_OVERRIDE_LOG_FILE_NAME) == 0) {
    f = stdout;
  } else {
    f = fopen (filename, "w");
    if (f == NULL) {
      eprintf ("Error in call to fopen while opening file %s:", __FILE__,
          __LINE__ - 2, filename);
    }
  }
  return f;
}

FILE *
srunner_open_lfile (SRunner * sr)
{
  FILE *f = NULL;

  if (srunner_has_log (sr)) {
    f = srunner_open_file (srunner_log_fname (sr));
  }
  return f;
}

FILE *
srunner_open_xmlfile (SRunner * sr)
{
  FILE *f = NULL;

  if (srunner_has_xml (sr)) {
    f = srunner_open_file (srunner_xml_fname (sr));
  }
  return f;
}

FILE *
srunner_open_tapfile (SRunner * sr)
{
  FILE *f = NULL;

  if (srunner_has_tap (sr)) {
    f = srunner_open_file (srunner_tap_fname (sr));
  }
  return f;
}

void
srunner_init_logging (SRunner * sr, enum print_output print_mode)
{
  FILE *f;

  sr->loglst = check_list_create ();
#if ENABLE_SUBUNIT
  if (print_mode != CK_SUBUNIT)
#endif
    srunner_register_lfun (sr, stdout, 0, stdout_lfun, print_mode);
#if ENABLE_SUBUNIT
  else
    srunner_register_lfun (sr, stdout, 0, subunit_lfun, print_mode);
#endif
  f = srunner_open_lfile (sr);
  if (f) {
    srunner_register_lfun (sr, f, f != stdout, lfile_lfun, print_mode);
  }
  f = srunner_open_xmlfile (sr);
  if (f) {
    srunner_register_lfun (sr, f, f != stdout, xml_lfun, print_mode);
  }
  f = srunner_open_tapfile (sr);
  if (f) {
    srunner_register_lfun (sr, f, f != stdout, tap_lfun, print_mode);
  }
  srunner_send_evt (sr, NULL, CLINITLOG_SR);
}

void
srunner_end_logging (SRunner * sr)
{
  List *l;
  int rval;

  srunner_send_evt (sr, NULL, CLENDLOG_SR);

  l = sr->loglst;
  for (check_list_front (l); !check_list_at_end (l); check_list_advance (l)) {
    Log *lg = (Log *) check_list_val (l);

    if (lg->close) {
      rval = fclose (lg->lfile);
      if (rval != 0)
        eprintf ("Error in call to fclose while closing log file:",
            __FILE__, __LINE__ - 2);
    }
    free (lg);
  }
  check_list_free (l);
  sr->loglst = NULL;
}