#!/usr/bin/env bash
set -eET

# Variables used in other scripts.
BATS_COUNT_ONLY=''
BATS_TEST_FILTER=''
BATS_ENABLE_TIMING=''
BATS_EXTENDED_SYNTAX=''
BATS_TRACE_LEVEL="${BATS_TRACE_LEVEL:-0}"
BATS_PRINT_OUTPUT_ON_FAILURE="${BATS_PRINT_OUTPUT_ON_FAILURE:-}"
BATS_SHOW_OUTPUT_OF_SUCCEEDING_TESTS="${BATS_SHOW_OUTPUT_OF_SUCCEEDING_TESTS:-}"
BATS_VERBOSE_RUN="${BATS_VERBOSE_RUN:-}"
BATS_GATHER_TEST_OUTPUTS_IN="${BATS_GATHER_TEST_OUTPUTS_IN:-}"

while [[ "$#" -ne 0 ]]; do
  case "$1" in
  -c)
    # shellcheck disable=SC2034
    BATS_COUNT_ONLY=1
    ;;
  -f)
    shift
    # shellcheck disable=SC2034
    BATS_TEST_FILTER="$1"
    ;;
  -T)
    BATS_ENABLE_TIMING='-T'
    ;;
  -x)
    # shellcheck disable=SC2034
    BATS_EXTENDED_SYNTAX='-x'
    ;;
  --dummy-flag)
    ;;
  --trace)
    (( ++BATS_TRACE_LEVEL )) # avoid returning 0
    ;;
  --print-output-on-failure)
    BATS_PRINT_OUTPUT_ON_FAILURE=1
    ;;
  --show-output-of-passing-tests)
    BATS_SHOW_OUTPUT_OF_SUCCEEDING_TESTS=1
    ;;
  --verbose-run)
    BATS_VERBOSE_RUN=1
    ;;
  --gather-test-outputs-in)
    shift
    BATS_GATHER_TEST_OUTPUTS_IN="$1"
    ;;
  *)
    break
    ;;
  esac
  shift
done

export BATS_TEST_FILENAME="$1"
export BATS_TEST_NAME="$2"
export BATS_SUITE_TEST_NUMBER="$3"
export BATS_TEST_NUMBER="$4"

if [[ -z "$BATS_TEST_FILENAME" ]]; then
  printf 'usage: bats-exec-test <filename>\n' >&2
  exit 1
elif [[ ! -f "$BATS_TEST_FILENAME" ]]; then
  printf 'bats: %s does not exist\n' "$BATS_TEST_FILENAME" >&2
  exit 1
fi

bats_create_test_tmpdirs() {
  local tests_tmpdir="${BATS_RUN_TMPDIR}/test/"
  if ! mkdir -p "$tests_tmpdir"; then
    printf 'Failed to create: %s\n' "$tests_tmpdir" >&2
    exit 1
  fi

  BATS_TEST_TMPDIR="$tests_tmpdir/$BATS_SUITE_TEST_NUMBER"
  if ! mkdir "$BATS_TEST_TMPDIR"; then
    printf 'Failed to create BATS_TEST_TMPDIR: %s\n' "$BATS_TEST_TMPDIR" >&2
    exit 1
  fi

  printf "%s\n" "$BATS_TEST_NAME" > "$BATS_TEST_TMPDIR.name"

  export BATS_TEST_TMPDIR
}

# load the test helper functions like `load` or `run` that are needed to run a (preprocessed) .bats file without bash errors
# shellcheck source=lib/bats-core/test_functions.bash disable=SC2153
source "$BATS_ROOT/lib/bats-core/test_functions.bash"
# shellcheck source=lib/bats-core/tracing.bash disable=SC2153
source "$BATS_ROOT/lib/bats-core/tracing.bash"

bats_teardown_trap() {
  bats_check_status_from_trap
  local status=0
  # mark the start of this function to distinguish where skip is called
  # parameter 1 will signify the reason why this function was called
  # this is used to identify when this is called as exit trap function
  BATS_TEARDOWN_STARTED=${1:-1}
  teardown >>"$BATS_OUT" 2>&1 || status="$?"

  if [[ $status -eq 0 ]]; then
    BATS_TEARDOWN_COMPLETED=1
  elif [[ -n "$BATS_TEST_COMPLETED" ]]; then
    BATS_DEBUG_LAST_STACK_TRACE_IS_VALID=1
    BATS_ERROR_STATUS="$status"
  fi

  bats_exit_trap
}

# shellcheck source=lib/bats-core/common.bash
source "$BATS_ROOT/lib/bats-core/common.bash"

bats_exit_trap() {
  local status
  local skipped=''
  trap - ERR EXIT

  if [[ -n "$BATS_TEST_SKIPPED" ]]; then
    skipped=' # skip'
    if [[ "$BATS_TEST_SKIPPED" != '1' ]]; then
      skipped+=" $BATS_TEST_SKIPPED"
    fi
  fi

  BATS_TEST_TIME=''
  if [[ -z "${skipped}" && -n "$BATS_ENABLE_TIMING" ]]; then
    BATS_TEST_TIME=" in "$(( $(get_mills_since_epoch) - BATS_TEST_START_TIME ))"ms"
  fi

  local print_bats_out="${BATS_SHOW_OUTPUT_OF_SUCCEEDING_TESTS}"

  if [[ -z "$BATS_TEST_COMPLETED" || -z "$BATS_TEARDOWN_COMPLETED" || "${BATS_INTERRUPTED-NOTSET}" != NOTSET ]]; then
    if [[ "$BATS_ERROR_STATUS" -eq 0 ]]; then
      # For some versions of bash, `$?` may not be set properly for some error
      # conditions before triggering the EXIT trap directly (see #72 and #81).
      # Thanks to the `BATS_TEARDOWN_COMPLETED` signal, this will pinpoint such
      # errors if they happen during `teardown()` when `bats_perform_test` calls
      # `bats_teardown_trap` directly after the test itself passes.
      #
      # If instead the test fails, and the `teardown()` error happens while
      # `bats_teardown_trap` runs as the EXIT trap, the test will fail with no
      # output, since there's no way to reach the `bats_exit_trap` call.
      BATS_ERROR_STATUS=1
    fi
    printf 'not ok %d %s\n' "$BATS_SUITE_TEST_NUMBER" "${BATS_TEST_DESCRIPTION}${BATS_TEST_TIME}" >&3
    local stack_trace
    bats_get_failure_stack_trace stack_trace
    bats_print_stack_trace "${stack_trace[@]}" >&3
    bats_print_failed_command "${stack_trace[@]}" >&3

    if [[ $BATS_PRINT_OUTPUT_ON_FAILURE && -n "${output:-}" ]]; then
      printf "Last output:\n%s\n" "$output" >> "$BATS_OUT"
    fi 

    print_bats_out=1
    status=1
  else
    printf 'ok %d %s%s\n' "$BATS_SUITE_TEST_NUMBER" "${BATS_TEST_DESCRIPTION}${BATS_TEST_TIME}" \
      "$skipped" >&3
    status=0
  fi

  if [[ $print_bats_out ]]; then
    bats_prefix_lines_for_tap_output < "$BATS_OUT" | bats_replace_filename >&3
  fi

  if [[ $BATS_GATHER_TEST_OUTPUTS_IN ]]; then
    cp "$BATS_OUT" "$BATS_GATHER_TEST_OUTPUTS_IN/$BATS_SUITE_TEST_NUMBER-$BATS_TEST_DESCRIPTION.log"
  fi

  rm -f "$BATS_OUT"
  exit "$status"
}

get_mills_since_epoch() {
  local ms_since_epoch
  ms_since_epoch=$(date +%s%N)
  if [[ "$ms_since_epoch" == *N || "${#ms_since_epoch}" -lt 19 ]]; then
        ms_since_epoch=$(( $(date +%s) * 1000 ))
  else
        ms_since_epoch=$(( ms_since_epoch / 1000000 ))
  fi

  printf "%d\n" "$ms_since_epoch"
}

bats_perform_test() {
  if ! declare -F "$BATS_TEST_NAME" &>/dev/null; then
    local quoted_test_name
    bats_quote_code quoted_test_name "$BATS_TEST_NAME"
    printf "bats: unknown test name %s\n" "$quoted_test_name" >&2
    exit 1
  fi

  # Variables for capturing accurate stack traces. See bats_debug_trap for
  # details.
  #
  # BATS_DEBUG_LAST_LINENO, BATS_DEBUG_LAST_SOURCE, and
  # BATS_DEBUG_LAST_STACK_TRACE hold data from the most recent call to
  # bats_debug_trap.
  #
  # BATS_DEBUG_LASTLAST_STACK_TRACE holds data from two bats_debug_trap calls
  # ago.
  #
  # BATS_DEBUG_LAST_STACK_TRACE_IS_VALID indicates that
  # BATS_DEBUG_LAST_STACK_TRACE contains the stack trace of the test's error. If
  # unset, BATS_DEBUG_LAST_STACK_TRACE is unreliable and
  # BATS_DEBUG_LASTLAST_STACK_TRACE should be used instead.
  BATS_DEBUG_LASTLAST_STACK_TRACE=()
  BATS_DEBUG_LAST_LINENO=()
  BATS_DEBUG_LAST_SOURCE=()
  BATS_DEBUG_LAST_STACK_TRACE=()
  BATS_DEBUG_LAST_STACK_TRACE_IS_VALID=

  BATS_TEST_COMPLETED=
  BATS_TEST_SKIPPED=
  BATS_TEARDOWN_COMPLETED=
  BATS_ERROR_STATUS=
  BATS_ERROR_SUFFIX=
  bats_setup_tracing
  # mark this call as trap call
  trap 'bats_teardown_trap as-exit-trap' EXIT

  BATS_TEST_START_TIME=$(get_mills_since_epoch)
  "$BATS_TEST_NAME" >>"$BATS_OUT" 2>&1 4>&1

  BATS_TEST_COMPLETED=1
  trap 'bats_exit_trap' EXIT
  bats_teardown_trap "" # pass empty parameter to signify call outside trap
}

trap bats_interrupt_trap INT

# shellcheck source=lib/bats-core/preprocessing.bash
source "$BATS_ROOT/lib/bats-core/preprocessing.bash"

exec 3<&1

bats_create_test_tmpdirs
# Run the given test.
bats_evaluate_preprocessed_source
bats_perform_test