#!/bin/bash
set -euo pipefail

PLUGIN_DIR="$(cd "$(dirname "$0")/.." && pwd)"
CPIF="/usr/local/directadmin/data/admin/custom_package_items.conf"
SUDOERS_FILE="/etc/sudoers.d/directadmin-alt-mysql-plugin"
CRON_FILE="/etc/cron.d/alt-mysql-jobs"
CSF_ALLOW_FILE="/etc/csf/csf.allow"
CSF_MANAGED_ALLOW_FILE="/etc/csf/alt-mysql-plugin.allow"
DA_INTEGRATION_INSTALLER="$(cd "$(dirname "$0")/.." && pwd)/scripts/setup/da_integration_install.sh"
CUSTOMBUILD_HOOKS_INSTALLER="$(cd "$(dirname "$0")/.." && pwd)/scripts/setup/custombuild_hooks_install.sh"

read_plugin_setting() {
  local key="$1"
  local default="$2"
  local file="$PLUGIN_DIR/plugin-settings.conf"
  local line value

  [ -r "$file" ] || {
    printf '%s\n' "$default"
    return 0
  }

  line="$(grep -E "^${key}=" "$file" | tail -n 1 || true)"
  if [ -z "$line" ]; then
    printf '%s\n' "$default"
    return 0
  fi

  value="${line#*=}"
  value="${value%%#*}"
  value="${value%\"}"
  value="${value#\"}"
  value="${value%\'}"
  value="${value#\'}"
  value="$(printf '%s' "$value" | sed 's/^[[:space:]]*//;s/[[:space:]]*$//')"
  printf '%s\n' "${value:-$default}"
}

cleanup_csf_managed_file() {
  local managed_file="$1"
  local tmp include_line changed=0

  include_line="Include $managed_file"

  if [ -f "$CSF_ALLOW_FILE" ]; then
    tmp="$(mktemp)"
    grep -Fxv "$include_line" "$CSF_ALLOW_FILE" > "$tmp" || true
    if ! cmp -s "$tmp" "$CSF_ALLOW_FILE"; then
      cat "$tmp" > "$CSF_ALLOW_FILE"
      changed=1
    fi
    rm -f "$tmp"
  fi

  if [ -f "$managed_file" ]; then
    rm -f "$managed_file"
    changed=1
  fi

  return "$changed"
}

cleanup_csf_remote_mysql() {
  local changed=0 configured_managed_allow

  CSF_ALLOW_FILE="$(read_plugin_setting MYSQL_PLUGIN_CSF_ALLOW_FILE "$CSF_ALLOW_FILE")"
  configured_managed_allow="$(read_plugin_setting MYSQL_PLUGIN_CSF_MANAGED_ALLOW_FILE "$CSF_MANAGED_ALLOW_FILE")"

  cleanup_csf_managed_file "$configured_managed_allow" || changed=1

  if [ "$changed" -eq 1 ] && command -v csf >/dev/null 2>&1; then
    csf -r >/dev/null 2>&1 || true
  fi
}

if [ "$(id -u)" -eq 0 ]; then
  if [ -f "$CPIF" ]; then
    sed -i '/^mysql_enabled=/d' "$CPIF" || true
    sed -i '/^mysql=/d' "$CPIF" || true
    sed -i '/^umysql=/d' "$CPIF" || true
    sed -i '/^mysql_max_databases=/d' "$CPIF" || true
    sed -i '/^mysql_unlimited=/d' "$CPIF" || true
    sed -i '/^umysql_max_databases=/d' "$CPIF" || true
    chown diradmin:diradmin "$CPIF" 2>/dev/null || true
    chmod 640 "$CPIF" 2>/dev/null || true
  fi

  rm -f "$SUDOERS_FILE" "$CRON_FILE" || true
  cleanup_csf_remote_mysql
  if [ -x "$DA_INTEGRATION_INSTALLER" ]; then
    "$DA_INTEGRATION_INSTALLER" uninstall || true
  fi
  if [ -x "$CUSTOMBUILD_HOOKS_INSTALLER" ]; then
    "$CUSTOMBUILD_HOOKS_INSTALLER" uninstall || true
  fi
else
  echo "mysql: warning: uruchom jako root, aby usunąć wpisy z custom_package_items i sudoers" >&2
fi

if [ -f "$PLUGIN_DIR/plugin.conf" ]; then
  sed -i 's/^active=.*/active=no/' "$PLUGIN_DIR/plugin.conf" || true
  sed -i 's/^installed=.*/installed=no/' "$PLUGIN_DIR/plugin.conf" || true
fi

echo "mysql: deaktywowany."