#!/usr/bin/env bash
# Shared helpers for the infra/dev scripts. Sourced, not run.
# shellcheck disable=SC2034  # variables are used by the scripts that source this file

dev_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
repo_root="$(cd "$dev_dir/../.." && pwd)"

# infra/dev/.env (git-ignored) when it exists, otherwise the committed example.
if [[ -f "$dev_dir/.env" ]]; then env_file="$dev_dir/.env"; else env_file="$dev_dir/.env.example"; fi

die() { printf '%s: %s\n' "$(basename "$0")" "$*" >&2; exit 1; }

# Value of KEY in the env file; DEFAULT (the compose.yaml default, optional) when unset or blank.
env_value() {
  local v
  v="$(sed -n "s/^$1=//p" "$env_file" | tail -n 1)"
  printf '%s\n' "${v:-${2:-}}"
}

compose() {
  docker compose -f "$dev_dir/compose.yaml" --env-file "$env_file" "$@"
}

# Resolve a path from the env file the way compose does: relative to infra/dev/.
dev_path() {
  case "$1" in
    /*) printf '%s\n' "$1" ;;
    *) printf '%s\n' "$dev_dir/$1" ;;
  esac
}

# The Mac's address on the interface that carries the default route (the home Wi-Fi).
lan_address() {
  local iface
  iface="$(route -n get default 2>/dev/null | awk '/interface:/ {print $2}')"
  [[ -n "$iface" ]] && ipconfig getifaddr "$iface" 2>/dev/null
}