#!/bin/bash
set -euo pipefail

PLUGIN_DIR="$(cd "$(dirname "$0")/.." && pwd)"
SETTINGS_FILE="${ALT_MYSQL_SETTINGS_FILE:-$PLUGIN_DIR/plugin-settings.conf}"
CPIF="${ALT_MYSQL_CUSTOM_PACKAGE_ITEMS_CONF:-/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"
IS_ROOT=0
if [ "${ALT_MYSQL_TEST_ASSUME_ROOT:-0}" = "1" ] || [ "$(id -u)" -eq 0 ]; then
  IS_ROOT=1
fi

read_plugin_setting() {
  local key="$1"
  local default="$2"
  local line value

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

  line="$(grep -E "^${key}=" "$SETTINGS_FILE" | tail -n 1 || true)"
  if [ -z "$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}"
}

setting_enabled() {
  case "$(printf '%s' "$1" | tr '[:upper:]' '[:lower:]')" in
    1|yes|true|on) return 0 ;;
    *) return 1 ;;
  esac
}

always_enabled() {
  setting_enabled "$(read_plugin_setting always_enabled 1)"
}

remove_custom_package_item() {
  local key="$1"
  local tmp

  [ -f "$CPIF" ] || return 0
  tmp="$(mktemp)"
  grep -Ev "^${key}=" "$CPIF" > "$tmp" || true
  cat "$tmp" > "$CPIF"
  rm -f "$tmp"
}

set_permissions() {
  local owner="$1"
  local mode="$2"
  local path="$3"
  if [ -e "$path" ]; then
    chown "$owner" "$path" 2>/dev/null || true
    chmod "$mode" "$path" 2>/dev/null || true
  fi
}

set_mode_if_exists() {
  local mode="$1"
  local path="$2"
  if [ -e "$path" ]; then
    chmod "$mode" "$path" 2>/dev/null || true
  fi
}

bootstrap_custom_package_items() {
  if [ "$IS_ROOT" -ne 1 ]; then
    echo "mysql: warning: uruchom jako root, aby zaktualizować $CPIF" >&2
    return 0
  fi

  touch "$CPIF"

  remove_custom_package_item mysql_enabled
  remove_custom_package_item mysql
  remove_custom_package_item umysql
  remove_custom_package_item mysql_max_databases
  remove_custom_package_item mysql_unlimited
  remove_custom_package_item umysql_max_databases

  if always_enabled; then
    set_permissions diradmin:diradmin 640 "$CPIF"
    return 0
  fi

  cat >> "$CPIF" <<'EOF'
mysql_enabled=type=checkbox&string=Enable mysql&desc=Zezwól na dostęp do baz danych MySQL&default=no
mysql=type=text&string=Bazy MySQL&desc=&default=5
umysql=type=checkbox&string=Bez ograniczeń&desc=&default=no&custom=autofocus%20onfocus%3D%22%28function%28c%29%7Bif%28c.dataset.pgInit%3D%3D%3D%271%27%29%7Breturn%3B%7Dc.dataset.pgInit%3D%271%27%3Bvar%20l%3Ddocument.querySelector%28%22input%5Bname%3D%27mysql%27%5D%22%29%3Bif%28%21l%29%7Breturn%3B%7Dvar%20r%3Dc.closest%28%27tr%27%29%3Bvar%20td%3Dl.closest%28%27td%27%29%3Bif%28r%26%26td%29%7Bvar%20w%3Ddocument.getElementById%28%27da-pg-unlim-wrap%27%29%3Bif%28%21w%29%7Bw%3Ddocument.createElement%28%27label%27%29%3Bw.id%3D%27da-pg-unlim-wrap%27%3Bw.style.display%3D%27inline-flex%27%3Bw.style.alignItems%3D%27center%27%3Bw.style.gap%3D%278px%27%3Bw.style.marginLeft%3D%2712px%27%3Bw.appendChild%28c%29%3Bw.appendChild%28document.createTextNode%28%27Bez%20ogranicze%C5%84%27%29%29%3Btd.style.display%3D%27flex%27%3Btd.style.alignItems%3D%27center%27%3Btd.style.justifyContent%3D%27space-between%27%3Btd.appendChild%28w%29%3B%7Dr.style.display%3D%27none%27%3B%7Dvar%20s%3Dfunction%28%29%7Bl.disabled%3D%21%21c.checked%3B%7D%3Bc.addEventListener%28%27change%27%2Cs%29%3Bs%28%29%3B%7D%29%28this%29%22%20onchange%3D%22var%20l%3Ddocument.querySelector%28%22input%5Bname%3D%27mysql%27%5D%22%29%3Bif%28l%29%7Bl.disabled%3D%21%21this.checked%3B%7D%22
EOF

  set_permissions diradmin:diradmin 640 "$CPIF"
}

bootstrap_sudoers() {
  if [ "$IS_ROOT" -ne 1 ]; then
    echo "mysql: warning: uruchom jako root, aby dodać sudoers dla synchronizacji hostów MySQL" >&2
    return 0
  fi

  cat > "$SUDOERS_FILE" <<SUDO
# DirectAdmin alt-mysql plugin
diradmin ALL=(root) NOPASSWD: /usr/local/directadmin/plugins/alt-mysql/scripts/setup/mysql_host_sync.sh
SUDO

  chmod 440 "$SUDOERS_FILE"
}

bootstrap_worker_cron() {
  if [ "$IS_ROOT" -ne 1 ]; then
    echo "mysql: warning: uruchom jako root, aby dodać cron workera backup/restore" >&2
    return 0
  fi

  touch "$CRON_FILE"
  if ! grep -Fq '/usr/local/directadmin/plugins/alt-mysql/scripts/worker.sh' "$CRON_FILE"; then
    echo '* * * * * root /usr/local/directadmin/plugins/alt-mysql/scripts/worker.sh >/dev/null 2>&1' >> "$CRON_FILE"
  fi
  chmod 644 "$CRON_FILE" 2>/dev/null || true
}

bootstrap_phpmyadmin() {
  local phpmyadmin_setup="$PLUGIN_DIR/scripts/setup/phpmyadmin_private_install.sh"

  if [ "$IS_ROOT" -ne 1 ]; then
    echo "mysql: warning: uruchom jako root, aby przygotować integrację phpMyAdmin." >&2
    return 0
  fi

  if [ ! -f "$phpmyadmin_setup" ]; then
    echo "mysql: error: brak skryptu integracji phpMyAdmin: $phpmyadmin_setup" >&2
    return 1
  fi

  bash "$phpmyadmin_setup"
}

bootstrap_da_integration() {
  local da_setup="$PLUGIN_DIR/scripts/setup/da_integration_install.sh"

  if [ "$IS_ROOT" -ne 1 ]; then
    echo "mysql: warning: uruchom jako root, aby zainstalować hooki integracji DirectAdmin backup/restore." >&2
    return 0
  fi

  if [ ! -f "$da_setup" ]; then
    echo "mysql: error: brak skryptu integracji DirectAdmin: $da_setup" >&2
    return 1
  fi

  bash "$da_setup" install
}

bootstrap_custombuild_hooks() {
  local custombuild_setup="$PLUGIN_DIR/scripts/setup/custombuild_hooks_install.sh"

  if [ "$IS_ROOT" -ne 1 ]; then
    echo "mysql: warning: uruchom jako root, aby zainstalować hooki CustomBuild po aktualizacjach Roundcube/phpMyAdmin." >&2
    return 0
  fi

  if [ ! -f "$custombuild_setup" ]; then
    echo "mysql: error: brak skryptu hooków CustomBuild: $custombuild_setup" >&2
    return 1
  fi

  bash "$custombuild_setup" install
}

activate_plugin() {
  local conf="$PLUGIN_DIR/plugin.conf"
  if [ -f "$conf" ]; then
    sed -i 's/^active=.*/active=yes/' "$conf" || true
    sed -i 's/^installed=.*/installed=yes/' "$conf" || true
  fi
}

if [ "${ALT_MYSQL_TEST_ONLY_CUSTOM_PACKAGE_ITEMS:-0}" = "1" ]; then
  bootstrap_custom_package_items
  exit 0
fi

mkdir -p "$PLUGIN_DIR/data"
mkdir -p "$PLUGIN_DIR/exec" "$PLUGIN_DIR/exec/lib" "$PLUGIN_DIR/exec/handlers"
mkdir -p "$PLUGIN_DIR/data/jobs/pending" "$PLUGIN_DIR/data/jobs/processing" "$PLUGIN_DIR/data/jobs/done"
mkdir -p "$PLUGIN_DIR/data/logs" "$PLUGIN_DIR/data/lock" "$PLUGIN_DIR/data/pids" "$PLUGIN_DIR/data/cancel"
mkdir -p "$PLUGIN_DIR/data/uploads"

if [ "$IS_ROOT" -eq 1 ]; then
  chown -R diradmin:diradmin "$PLUGIN_DIR" 2>/dev/null || true
else
  echo "mysql: warning: uruchom jako root, aby ustawić właściciela plików pluginu (w przeciwnym razie może wystąpić biała strona)." >&2
fi

find "$PLUGIN_DIR" -type d -exec chmod 755 {} + 2>/dev/null || true
set_mode_if_exists 700 "$PLUGIN_DIR/data"
set_mode_if_exists 700 "$PLUGIN_DIR/data/jobs"
set_mode_if_exists 700 "$PLUGIN_DIR/data/jobs/pending"
set_mode_if_exists 700 "$PLUGIN_DIR/data/jobs/processing"
set_mode_if_exists 700 "$PLUGIN_DIR/data/jobs/done"
set_mode_if_exists 700 "$PLUGIN_DIR/data/logs"
set_mode_if_exists 700 "$PLUGIN_DIR/data/lock"
set_mode_if_exists 700 "$PLUGIN_DIR/data/pids"
set_mode_if_exists 700 "$PLUGIN_DIR/data/cancel"
set_mode_if_exists 700 "$PLUGIN_DIR/data/uploads"
find "$PLUGIN_DIR" -type f -name '*.html' -exec chmod 755 {} + 2>/dev/null || true
find "$PLUGIN_DIR" -type f -name '*.raw' -exec chmod 755 {} + 2>/dev/null || true
find "$PLUGIN_DIR" -type f -name '*.css' -exec chmod 644 {} + 2>/dev/null || true
find "$PLUGIN_DIR/scripts" -type f -name '*.sh' -exec chmod 755 {} + 2>/dev/null || true
find "$PLUGIN_DIR" -type f -name '*.php' -exec chmod 640 {} + 2>/dev/null || true
set_mode_if_exists 644 "$PLUGIN_DIR/plugin.conf"
set_mode_if_exists 644 "$PLUGIN_DIR/plugin-settings.conf"
set_mode_if_exists 644 "$PLUGIN_DIR/php.ini"

if [ ! -f "$PLUGIN_DIR/data/secret.key" ]; then
  tr -dc 'a-f0-9' </dev/urandom | head -c 64 > "$PLUGIN_DIR/data/secret.key" || true
fi
set_mode_if_exists 600 "$PLUGIN_DIR/data/secret.key"

touch "$PLUGIN_DIR/error.log" 2>/dev/null || true
if [ "$IS_ROOT" -eq 1 ]; then
  chown diradmin:diradmin "$PLUGIN_DIR/error.log" 2>/dev/null || true
fi
set_mode_if_exists 640 "$PLUGIN_DIR/error.log"

bootstrap_custom_package_items
bootstrap_sudoers
bootstrap_worker_cron
bootstrap_phpmyadmin
bootstrap_da_integration
bootstrap_custombuild_hooks
activate_plugin

echo "mysql: instalacja zakończona."
echo "Przypomnienie: zapisz pakiety i user.conf w DirectAdmin, aby odświeżyć custom package items."