#!/usr/bin/env bash
# Resolve Gatekeep config files for remote-referenceable Action installs.
# Prefer optional consumer override dir; else bundled defaults under action_path.
#
# Expects: GATEKEEP_ROOT, GATEKEEP_ACTION, CONFIG_DIR (may be empty)
# Usage:  source "$GATEKEEP_ACTION/scripts/lib-config.sh"
#         cfg=$(gatekeep_config_file models.json)

gatekeep_config_file() {
  local name="$1"
  local root="${GATEKEEP_ROOT:-.}"
  local action="${GATEKEEP_ACTION:-.}"
  local cdir="${CONFIG_DIR:-}"

  # Optional consumer override (only if config-dir set and file exists)
  if [[ -n "$cdir" && -f "$root/$cdir/$name" ]]; then
    printf '%s\n' "$root/$cdir/$name"
    return 0
  fi

  # Bundled defaults shipped inside the Action (remote uses: / copy-in)
  if [[ -f "$action/defaults/$name" ]]; then
    printf '%s\n' "$action/defaults/$name"
    return 0
  fi

  # Legacy pack layouts (dev / old copy-in)
  if [[ -f "$action/../config/$name" ]]; then
    printf '%s\n' "$action/../config/$name"
    return 0
  fi
  if [[ -f "$action/../defaults/$name" ]]; then
    printf '%s\n' "$action/../defaults/$name"
    return 0
  fi

  echo "gatekeep: missing config $name (no consumer override, no Action defaults)" >&2
  return 1
}

# Prefer providers.yaml, then providers.yml, then legacy providers.json / models.json
gatekeep_providers_config() {
  local f
  for f in providers.yaml providers.yml providers.json models.json; do
    if fpath="$(gatekeep_config_file "$f" 2>/dev/null)"; then
      printf '%s\n' "$fpath"
      return 0
    fi
  done
  echo "gatekeep: missing providers.yaml (or legacy providers.json / models.json)" >&2
  return 1
}