#!/bin/bash
set -euo pipefail

PLUGIN_DIR="$(cd "$(dirname "$0")/.." && pwd)"
CPIF="/usr/local/directadmin/data/admin/custom_package_items.conf"
CPIL='db_manager=type=checkbox&string=Włącz zarządzanie backupami baz danych&desc=Włącz zarządzanie backupami baz danych&default=no'

plugin_always_enabled() {
  local settings_file="$PLUGIN_DIR/plugin-settings.conf"
  local line key value

  [ -r "$settings_file" ] || return 1
  while IFS= read -r line; do
    line="${line%%#*}"
    key="${line%%=*}"
    value="${line#*=}"
    key="$(printf '%s' "$key" | tr '[:upper:]' '[:lower:]' | tr -d '[:space:]')"
    if [ "$key" != "always_enable" ]; then
      continue
    fi
    value="$(printf '%s' "$value" | tr '[:upper:]' '[:lower:]' | tr -d '[:space:]\"'"'"'')"
    case "$value" in
      1|true|yes|y|on) return 0 ;;
      *) return 1 ;;
    esac
  done < "$settings_file"

  return 1
}

bootstrap_custom_package_item() {
  local install_cpif=0
  local count

  if [ "$(id -u)" -ne 0 ]; then
    echo "db-manager: warning: not running as root, cannot update $CPIF" >&2
    return 0
  fi

  if [ -f "$CPIF" ]; then
    sed -i '/^db-manager=/d' "$CPIF" || true
    sed -i '/^db_manager=/d' "$CPIF" || true
    count="$(grep -m1 -c '^db_manager=' "$CPIF" || true)"
    if [ "${count:-0}" -eq 0 ] && ! plugin_always_enabled; then
      install_cpif=1
    fi
  else
    if ! plugin_always_enabled; then
      install_cpif=1
    fi
  fi

  if [ "$install_cpif" -eq 1 ]; then
    printf '%s\n' "$CPIL" >> "$CPIF"
  fi

  if [ -f "$CPIF" ]; then
    chown diradmin:diradmin "$CPIF" 2>/dev/null || true
    chmod 640 "$CPIF" 2>/dev/null || true
  fi
}

if [ "${DB_MANAGER_INSTALL_LIB_ONLY:-0}" = "1" ]; then
  return 0 2>/dev/null || exit 0
fi

# Ensure expected permissions and ownership so DirectAdmin can update plugin.conf.
if [ "$(id -u)" -eq 0 ]; then
  chown -R diradmin:diradmin "$PLUGIN_DIR" || true
else
  echo "db-manager: warning: not running as root, cannot chown to diradmin" >&2
fi

chmod 755 "$PLUGIN_DIR" "$PLUGIN_DIR/hooks" "$PLUGIN_DIR/user" "$PLUGIN_DIR/scripts" "$PLUGIN_DIR/images" || true
chmod 755 "$PLUGIN_DIR/user/index.html" "$PLUGIN_DIR/scripts/install.sh" "$PLUGIN_DIR/scripts/uninstall.sh" "$PLUGIN_DIR/scripts/restore.sh" "$PLUGIN_DIR/scripts/backup.sh" "$PLUGIN_DIR/scripts/worker.sh" || true
chmod 644 "$PLUGIN_DIR/plugin.conf" "$PLUGIN_DIR/hooks/user_txt.html" "$PLUGIN_DIR/plugin-settings.conf" "$PLUGIN_DIR/user/enhanced.css" "$PLUGIN_DIR/user/evolution.css" "$PLUGIN_DIR/images/user_icon.svg" || true

DATA_DIR="$PLUGIN_DIR/data"
mkdir -p "$DATA_DIR/jobs/pending" "$DATA_DIR/jobs/processing" "$DATA_DIR/jobs/done" "$DATA_DIR/logs" "$DATA_DIR/pids" "$DATA_DIR/cancel" "$DATA_DIR/csrf" "$DATA_DIR/lock"
chmod 700 "$DATA_DIR" "$DATA_DIR/jobs" "$DATA_DIR/jobs/pending" "$DATA_DIR/jobs/processing" "$DATA_DIR/jobs/done" "$DATA_DIR/logs" "$DATA_DIR/pids" "$DATA_DIR/cancel" "$DATA_DIR/csrf" "$DATA_DIR/lock" || true
if [ "$(id -u)" -eq 0 ]; then
  chown -R diradmin:diradmin "$DATA_DIR" || true
fi

CRON_FILE="/etc/cron.d/db-manager"
if [ "$(id -u)" -eq 0 ]; then
  echo "* * * * * root /usr/local/directadmin/plugins/db-manager/scripts/worker.sh >/dev/null 2>&1" > "$CRON_FILE"
  chmod 644 "$CRON_FILE" || true
else
  echo "db-manager: warning: not running as root, cannot install cron job" >&2
fi

bootstrap_custom_package_item

echo "db-manager: install complete"