/*
  This file is part of TALER
  Copyright (C) 2016, 2017 GNUnet e.V.

  TALER is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as
  published by the Free Software Foundation; either version 3,
  or (at your option) any later version.

  TALER 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 General Public License for more details.

  You should have received a copy of the GNU General Public
  License along with TALER; see the file COPYING.  If not, see
  <http://www.gnu.org/licenses/>
*/
/**
 * @file bank/test_bank_api.c
 * @brief testcase to test bank's HTTP API interface
 * against the "real" bank
 * @author Christian Grothoff
 */
#include "platform.h"
#include "taler_util.h"
#include "taler_signatures.h"
#include "taler_bank_service.h"
#include <gnunet/gnunet_util_lib.h>
#include <gnunet/gnunet_curl_lib.h>
#include <microhttpd.h>
#include "test_bank_interpreter.h"


/**
 * Main function that will be run by the scheduler.
 *
 * @param cls closure
 */
static void
run (void *cls)
{
  int *resultp = cls;
  static struct TBI_Command commands[] =
  {
    /* Ask complete history of 'Exchange' user (number 2) */
    { .oc = TBI_OC_HISTORY,
      .label = "history-0",
      .details.history.account_number = 2,
      .details.history.direction = TALER_BANK_DIRECTION_BOTH,
      .details.history.start_row_ref = NULL,
      .details.history.num_results = 5 },
    /* Move money from Bank to Exchange */
    { .oc = TBI_OC_ADMIN_ADD_INCOMING,
      .label = "deposit-1",
      .details.admin_add_incoming.exchange_base_url = "https://exchange.net/", /* bogus */
      .details.admin_add_incoming.subject = "subject 1",
      .details.admin_add_incoming.expected_response_code = MHD_HTTP_OK,
      .details.admin_add_incoming.credit_account_no = 2,
      .details.admin_add_incoming.debit_account_no = 1,
      .details.admin_add_incoming.amount = "KUDOS:5.01" },
    /* Move money from Bank to Exchange */
    { .oc = TBI_OC_ADMIN_ADD_INCOMING,
      .label = "deposit-2",
      .details.admin_add_incoming.exchange_base_url = "https://exchange.net/", /* bogus */
      .details.admin_add_incoming.subject = "subject 2",
      .details.admin_add_incoming.expected_response_code = MHD_HTTP_OK,
      .details.admin_add_incoming.credit_account_no = 2,
      .details.admin_add_incoming.debit_account_no = 1,
      .details.admin_add_incoming.amount = "KUDOS:5.01" },
    /* Ask Exchange's incoming history */
    { .oc = TBI_OC_HISTORY,
      .label = "history-1c",
      .details.history.account_number = 2,
      .details.history.direction = TALER_BANK_DIRECTION_CREDIT,
      .details.history.start_row_ref = NULL,
      .details.history.num_results = -5 },
    /* Ask Exchange's outgoing history, 5 records into the future */
    { .oc = TBI_OC_HISTORY,
      .label = "history-2d",
      .details.history.account_number = 2,
      .details.history.direction = TALER_BANK_DIRECTION_DEBIT,
      .details.history.start_row_ref = NULL,
      .details.history.num_results = 5 },
    /* Ask Exchange's outgoing history, last 5 records */
    { .oc = TBI_OC_HISTORY,
      .label = "history-2dr",
      .details.history.account_number = 2,
      .details.history.direction = TALER_BANK_DIRECTION_DEBIT,
      .details.history.start_row_ref = NULL,
      .details.history.num_results = -5 },
    { .oc = TBI_OC_HISTORY,
      .label = "history-2fwd",
      .details.history.account_number = 2,
      .details.history.direction = TALER_BANK_DIRECTION_DEBIT,
      .details.history.start_row_ref = "deposit-1",
      .details.history.num_results = 5 },
    { .oc = TBI_OC_REJECT,
      .label = "reject-1",
      .details.reject.cmd_ref = "deposit-1" },
    { .oc = TBI_OC_HISTORY,
      .label = "history-r1",
      .details.history.account_number = 2,
      .details.history.direction = TALER_BANK_DIRECTION_CREDIT,
      .details.history.start_row_ref = NULL,
      .details.history.num_results = -5 },
    { .oc = TBI_OC_HISTORY,
      .label = "history-r2",
      .details.history.account_number = 2,
      .details.history.direction = TALER_BANK_DIRECTION_DEBIT,
      .details.history.start_row_ref = NULL,
      .details.history.num_results = 5 },
    { .oc = TBI_OC_HISTORY,
      .label = "history-r3",
      .details.history.account_number = 2,
      .details.history.direction = TALER_BANK_DIRECTION_BOTH | TALER_BANK_DIRECTION_CANCEL,
      .details.history.start_row_ref = NULL,
      .details.history.num_results = -5 },
    { .oc = TBI_OC_END }
  };

  TBI_run_interpreter (resultp,
                       GNUNET_NO /* we use the "real" taler bank */,
                       commands);
}


/**
 * Main function for the testcase for the bank API.
 *
 * @param argc expected to be 1
 * @param argv expected to only contain the program name
 */
int
main (int argc,
      char * const *argv)
{
  struct GNUNET_OS_Process *bankd;
  unsigned int cnt;
  int result;
  char *defaultdb = "postgres:///talercheck";
  char *dbconn;

  if (GNUNET_OK !=
      GNUNET_NETWORK_test_port_free (IPPROTO_TCP,
				     8081))
  {
    fprintf (stderr,
             "Required port %u not available, skipping.\n",
	     8081);
    return 77;
  }
  GNUNET_log_setup ("test-bank-api",
                    "WARNING",
                    NULL);

  if (NULL == (dbconn = getenv ("TALER_EXCHANGEDB_POSTGRES_CONFIG")))
    dbconn = defaultdb;
  char *purgedb_cmd;
  GNUNET_asprintf (&purgedb_cmd, "taler-bank-manage -c bank.conf --with-db=%s django flush --no-input",
                   dbconn);
  if (0 != system (purgedb_cmd))
  {
      fprintf (stderr,
               "Could not purge database\n");
      return 77;
  }

  bankd = GNUNET_OS_start_process (GNUNET_NO,
                                   GNUNET_OS_INHERIT_STD_ALL,
                                   NULL, NULL, NULL,
                                   "taler-bank-manage",
                                   "taler-bank-manage",
                                   "--with-db", dbconn,
                                   "-c", "bank.conf",
                                   "serve-http",
                                   "--port", "8080",
                                   NULL);

  if (NULL == bankd)
  {
    fprintf (stderr,
             "Failed to launch taler-bank-manage, skipping test\n");
    return 77; /* report 'skip' */
  }
  /* give child time to start and bind against the socket */
  fprintf (stderr,
           "Waiting for taler-bank-manage to be ready\n");
  cnt = 0;
  do
    {
      fprintf (stderr, ".");
      sleep (1);
      cnt++;
      if (cnt > 30)
        break;
    }
  while (0 != system ("wget -q -t 1 -T 1 http://127.0.0.1:8080/ -o /dev/null -O /dev/null"));


  fprintf (stderr, "\n");
  result = GNUNET_SYSERR;
  if (cnt <= 30)
  {
    fprintf (stderr,
             "Ready, running test...\n");
    GNUNET_SCHEDULER_run (&run, &result);
  }
  GNUNET_OS_process_kill (bankd,
                          SIGTERM);
  GNUNET_OS_process_wait (bankd);
  GNUNET_OS_process_destroy (bankd);
  if (cnt > 30)
  {
    fprintf (stderr,
             "taler-bank-manage failed to start properly.\n");
    return 77;
  }
  return (GNUNET_OK == result) ? 0 : 1;
}

/* end of test_bank_api.c */