#!/usr/bin/env bash
# Self-check for orchestra_e2e_healthcheck.sh.
#
# The pinned USAGE string is gone. Pinning the help text meant every flag
# added to the healthcheck turned this file red for a reason that had nothing
# to do with the flag, so the usage assertions now check shape rather than
# exact bytes: --help must print a Usage: line, must mention every long flag
# the script actually parses, and must exit 0 from any argument position.

HC="$(dirname "$0")/orchestra_e2e_healthcheck.sh"
OK='OK - all healthchecks passed'
fails=0

fail() {
  printf 'FAIL: %s\n' "$1"
  fails=$((fails + 1))
}

exact() { # exact <expected-stdout> <label> [args...]
  local want=$1 label=$2 got status
  shift 2
  got=$(bash "$HC" "$@" 2>/dev/null)
  status=$?
  if [ "$got" != "$want" ] || [ "$status" -ne 0 ]; then
    fail "$label (exit=$status, got: $got)"
  fi
}

usage_shape() { # usage_shape <label> [args...]
  local label=$1 got status flag
  shift
  got=$(bash "$HC" "$@" 2>/dev/null)
  status=$?
  [ "$status" -eq 0 ] || fail "$label: exit=$status"
  case "$got" in
    Usage:*) ;;
    *) fail "$label: no Usage: line" ;;
  esac
  # Every long flag the script parses must be documented.
  for flag in $(grep -o -- '--[a-z][a-z-]*' "$HC" | sort -u); do
    case "$got" in
      *"$flag"*) ;;
      *) fail "$label: $flag is parsed but undocumented" ;;
    esac
  done
}

exact "$OK" 'no args'
exact '' '--quiet' --quiet
usage_shape '--help' --help
usage_shape '--help --quiet' --help --quiet
usage_shape '--quiet --help' --quiet --help

[ "$fails" -eq 0 ] || exit 1
printf 'all checks passed\n'