#!/usr/bin/env bash
#
# Unified installer: backvicibox + Custom (CSS/logos)
# - Ejecuta TODO desde un solo script interactivo
# - Se puede lanzar desde cualquier ruta: usa su propio directorio como base
#
set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
LOG_FILE="${SCRIPT_DIR}/unified_installer.log"

RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m'

info()  { echo -e "${GREEN}[INFO]${NC} $1" | tee -a "$LOG_FILE"; }
warn()  { echo -e "${YELLOW}[WARN]${NC} $1" | tee -a "$LOG_FILE"; }
error() { echo -e "${RED}[ERROR]${NC} $1" | tee -a "$LOG_FILE" >&2; }

need_root() {
  if [[ "${EUID}" -ne 0 ]]; then
    error "Ejecuta como root: sudo $0"
    exit 1
  fi
}

have_cmd() { command -v "$1" >/dev/null 2>&1; }

copy_tree() {
  local src="$1"
  local dst="$2"
  mkdir -p "$dst"
  if have_cmd rsync; then
    rsync -a --delete "$src"/ "$dst"/
  else
    cp -a "$src"/. "$dst"/
  fi
}

prompt_yn() {
  local prompt="$1"
  local default="${2:-Y}" # Y/N
  local ans=""
  while true; do
    if [[ "$default" == "Y" ]]; then
      read -r -p "${prompt} [Y/n]: " ans || true
      ans="${ans:-Y}"
    else
      read -r -p "${prompt} [y/N]: " ans || true
      ans="${ans:-N}"
    fi
    case "$ans" in
      Y|y) return 0 ;;
      N|n) return 1 ;;
      *) echo "Responde Y o N." ;;
    esac
  done
}

prompt_text() {
  local prompt="$1"
  local default="${2:-}"
  local ans=""
  if [[ -n "$default" ]]; then
    read -r -p "${prompt} [${default}]: " ans || true
    ans="${ans:-$default}"
  else
    read -r -p "${prompt}: " ans || true
  fi
  printf '%s' "$ans"
}

print_menu() {
  cat <<'EOF'

Selecciona qué quieres ejecutar (multi-selección permitida: ej. 1,3,4):
  1) Stage assets (copiar Custom/backvicibox -> /home/backvicibox y Custom/installer custom -> HTDOCS/agc/css/installer)
  2) Instalar backvicibox (ejecuta /home/backvicibox/install-vicibox.sh)
  3) Custom: instalar CSS/logos (HTDOCS/agc/css/installer/install_custom_css.sh install)
  4) Custom: status (HTDOCS/agc/css/installer/install_custom_css.sh status)
  5) Custom: uninstall (HTDOCS/agc/css/installer/install_custom_css.sh uninstall)
  6) Crear admin sapian (ejecuta /home/backvicibox/create-admin-sapian.sh)
  7) Salir

EOF
}

parse_multiselect() {
  # input: "1, 3 4" -> prints unique numbers one per line
  local raw="$1"
  raw="${raw//,/ }"
  # shellcheck disable=SC2206
  local parts=($raw)
  for p in "${parts[@]}"; do
    [[ "$p" =~ ^[0-9]+$ ]] || continue
    echo "$p"
  done | awk '!seen[$0]++'
}

require_paths() {
  local back_src="${SCRIPT_DIR}/backvicibox"
  local inst_custom_src="${SCRIPT_DIR}/installer custom"
  [[ -d "$back_src" ]] || { error "No existe: ${back_src}"; exit 1; }
  [[ -d "$inst_custom_src" ]] || { error "No existe: ${inst_custom_src}"; exit 1; }
}

do_stage() {
  local htdocs="$1"
  local back_src="${SCRIPT_DIR}/backvicibox"
  local inst_custom_src="${SCRIPT_DIR}/installer custom"
  local back_dst="/home/backvicibox"
  local inst_dst="${htdocs}/agc/css/installer"

  info "Staging assets..."
  info "  Origen backvicibox:      ${back_src}"
  info "  Destino backvicibox:     ${back_dst}"
  info "  Origen installer custom: ${inst_custom_src}"
  info "  Destino installer:       ${inst_dst}"

  copy_tree "$back_src" "$back_dst"
  copy_tree "$inst_custom_src" "$inst_dst"

  chmod +x "${back_dst}/"*.sh 2>/dev/null || true
  chmod +x "${inst_dst}/install_custom_css.sh" 2>/dev/null || true

  info "Stage completado."
}

do_backvicibox_install() {
  local back_dst="/home/backvicibox"
  local script="${back_dst}/install-vicibox.sh"
  [[ -x "$script" ]] || { error "No ejecutable/no existe: ${script}. Ejecuta primero 'Stage assets'."; exit 1; }
  info "Ejecutando backvicibox: ${script}"
  ( cd "$back_dst" && "$script" )
}

do_custom() {
  local htdocs="$1"
  local action="$2" # install|uninstall|status
  local inst_dst="${htdocs}/agc/css/installer"
  local script="${inst_dst}/install_custom_css.sh"
  [[ -x "$script" ]] || { error "No ejecutable/no existe: ${script}. Ejecuta primero 'Stage assets'."; exit 1; }
  info "Ejecutando Custom: HTDOCS=${htdocs} ${script} ${action}"
  HTDOCS="$htdocs" "$script" "$action"
}

do_create_admin() {
  local back_dst="/home/backvicibox"
  local script="${back_dst}/create-admin-sapian.sh"
  [[ -x "$script" ]] || { error "No ejecutable/no existe: ${script}. Ejecuta primero 'Stage assets'."; exit 1; }
  info "Creando admin sapian: ${script}"
  ( cd "$back_dst" && "$script" )
}

main() {
  need_root
  require_paths

  info "=========================================="
  info "Unified Installer (backvicibox + Custom)"
  info "Base: ${SCRIPT_DIR}"
  info "Log:  ${LOG_FILE}"
  info "=========================================="

  local htdocs
  htdocs="$(prompt_text "Ruta HTDOCS (donde están vicidial/agc/VERM)" "/srv/www/htdocs")"

  if [[ ! -d "$htdocs" ]]; then
    error "HTDOCS no existe: ${htdocs}"
    exit 1
  fi

  while true; do
    print_menu
    local sel
    sel="$(prompt_text "Opción(es)" "1,2,3")"

    local any=0
    while read -r opt; do
      any=1
      case "$opt" in
        1) do_stage "$htdocs" ;;
        2) do_backvicibox_install ;;
        3) do_custom "$htdocs" install ;;
        4) do_custom "$htdocs" status ;;
        5)
          if prompt_yn "Confirmas desinstalar Custom (restaurará backups si existen)?" "N"; then
            do_custom "$htdocs" uninstall
          else
            info "Uninstall cancelado."
          fi
          ;;
        6) do_create_admin ;;
        7) info "Saliendo."; return 0 ;;
        *) warn "Opción inválida: $opt" ;;
      esac
    done < <(parse_multiselect "$sel")

    if [[ "$any" -eq 0 ]]; then
      warn "No entendí la selección: '$sel'"
    fi

    echo ""
    if ! prompt_yn "Quieres ejecutar otra acción?" "Y"; then
      info "Listo."
      return 0
    fi
  done
}

main "$@"