#!/usr/bin/env bash
# Полное обновление SAC на сервере (native).
# Установка: sudo cp /opt/security-alert-center/deploy/sac-deploy.sh /opt/sac-deploy.sh
#            sudo chmod 755 /opt/sac-deploy.sh
# Запуск:    sudo /opt/sac-deploy.sh
#
# Выполняет от пользователя sac: git pull, pip, alembic, npm build.
# От root: systemctl restart sac-api.

set -euo pipefail

APP_ROOT="${SAC_APP_ROOT:-/opt/security-alert-center}"
APP_USER="${SAC_APP_USER:-sac}"
SERVICE_NAME="${SAC_SERVICE:-sac-api}"
CONFIG_FILE="${SAC_CONFIG_FILE:-${APP_ROOT}/config/sac-api.env}"

log() { printf '[sac-deploy] %s\n' "$*"; }
die() { printf '[sac-deploy] ERROR: %s\n' "$*" >&2; exit 1; }

if [ "$(id -u)" -ne 0 ]; then
 die "Запускайте от root: sudo /opt/sac-deploy.sh"
fi

id "$APP_USER" &>/dev/null || die "Пользователь ${APP_USER} не существует"

if [ ! -d "${APP_ROOT}/.git" ]; then
 die "Не найден git-репозиторий: ${APP_ROOT}"
fi

log "Выравнивание владельца ${APP_ROOT} → ${APP_USER}:${APP_USER}"
chown -R "${APP_USER}:${APP_USER}" "${APP_ROOT}"

log "git pull"
sudo -u "${APP_USER}" git -C "${APP_ROOT}" pull --ff-only

if [ ! -f "${CONFIG_FILE}" ]; then
 die "Нет конфига: ${CONFIG_FILE}"
fi

VENV="${APP_ROOT}/backend/.venv"
if [ ! -x "${VENV}/bin/pip" ]; then
 die "Нет venv: ${VENV} — сначала установите по install-ubuntu-24.04-native.md"
fi

log "pip install -r requirements.txt"
sudo -u "${APP_USER}" "${VENV}/bin/pip" install -q -r "${APP_ROOT}/backend/requirements.txt"

log "alembic upgrade head"
sudo -u "${APP_USER}" bash -c "
  set -a
  # shellcheck source=/dev/null
  source '${CONFIG_FILE}'
  set +a
  cd '${APP_ROOT}/backend' && '${VENV}/bin/alembic' upgrade head
"

if [ -f "${APP_ROOT}/frontend/package.json" ]; then
 if ! command -v npm >/dev/null 2>&1; then
  log "npm не найден — пропуск сборки UI (apt install nodejs npm)"
 else
  log "frontend: npm ci / build"
  sudo -u "${APP_USER}" bash -c "
    cd '${APP_ROOT}/frontend'
    if [ -f package-lock.json ]; then npm ci; else npm install; fi
    npm run build
  "
  if [ ! -f "${APP_ROOT}/frontend/dist/index.html" ]; then
   die "Сборка UI не создала frontend/dist/index.html"
  fi
 fi
fi

if [ -f "${APP_ROOT}/deploy/systemd/${SERVICE_NAME}.service" ]; then
 log "systemd unit (при необходимости скопируйте вручную в /etc/systemd/system/)"
fi

log "systemctl restart ${SERVICE_NAME}"
systemctl daemon-reload 2>/dev/null || true
systemctl restart "${SERVICE_NAME}"
systemctl is-active --quiet "${SERVICE_NAME}" || die "${SERVICE_NAME} не active"

sleep 1
if curl -sf "http://127.0.0.1:8000/health" >/dev/null 2>&1; then
 log "health: OK (http://127.0.0.1:8000/health)"
else
 log "WARN: локальный /health не ответил — проверьте journalctl -u ${SERVICE_NAME}"
fi

log "Готово."