#!/usr/bin/env bash
# =============================================================================
# lib/output.sh
# Terminal output helpers: colors, log levels, and step banners.
# =============================================================================

if [[ -t 1 ]]; then
  GREEN='\033[0;32m'
  YELLOW='\033[1;33m'
  CYAN='\033[0;36m'
  RED='\033[0;31m'
  BOLD='\033[1m'
  NC='\033[0m'
else
  GREEN='' YELLOW='' CYAN='' RED='' BOLD='' NC=''
fi

info()    { printf "%b\n"   "${CYAN}[INFO]${NC}    $*"; }
success() { printf "%b\n"   "${GREEN}[OK]${NC}      $*"; }
warn()    { printf "%b\n"   "${YELLOW}[WARN]${NC}    $*"; }
error()   { printf "%b\n"   "${RED}[ERROR]${NC}   $*" >&2; }
die()     { error "$*"; exit 1; }
step()    { printf "\n%b\n" "${BOLD}${YELLOW}━━━ $* ━━━${NC}"; }

box() {
  local max_len=0
  for line in "$@"; do
    [[ ${#line} -gt $max_len ]] && max_len=${#line}
  done
  local border
  border=$(printf '─%.0s' $(seq 1 $((max_len + 2))))
  printf "%b\n" "${CYAN}┌${border}┐${NC}"
  for line in "$@"; do
    printf "${CYAN}│${NC} %-${max_len}s ${CYAN}│${NC}\n" "$line"
  done
  printf "%b\n" "${CYAN}└${border}┘${NC}"
}