#!/usr/bin/env bash
# Read literal .env values without executing shell code. Environment wins.
env_value() {
  python3 - "$ROOT/.env" "$1" <<'PY'
import os, pathlib, shlex, sys
path, key = pathlib.Path(sys.argv[1]), sys.argv[2]
if key in os.environ:
    print(os.environ[key], end='')
elif path.exists():
    for line in path.read_text().splitlines():
        line = line.strip().removeprefix('export ')
        name, sep, value = line.partition('=')
        if sep and name.strip() == key:
            parts = shlex.split(value, comments=True)
            if len(parts) > 1:
                raise SystemExit(f'Quote whitespace in .env value {key}')
            print(parts[0] if parts else '', end='')
            break
PY
}

# These deployment procedures manage the established Hostsharing layout only.
require_deploy_layout() {
  local deploy_login=$1 setting expected configured
  for setting in BACKEND_DIR BACKEND_JDK_DIR BACKEND_PORT BACKEND_URL DEPLOY_TARGET; do
    case "$setting" in
      BACKEND_DIR) expected=opt/werkjournal ;;
      BACKEND_JDK_DIR) expected=opt/jdk25 ;;
      BACKEND_PORT) expected=18090 ;;
      BACKEND_URL) expected=https://werkjournal.javagil.de ;;
      DEPLOY_TARGET) expected="$deploy_login:doms/werkjournal.javagil.de/htdocs-ssl" ;;
    esac
    configured=$(env_value "$setting")
    if [[ -n $configured && $configured != "$expected" ]]; then
      printf '%s differs from the supported deployment layout.\n' "$setting" >&2
      return 2
    fi
  done
}