feat: интерактивный установщик install.sh (Docker / Ubuntu, админ, БД)

Co-authored-by: Cursor <cursoragent@cursor.com>

.env.docker.example

@@ -1,5 +1,6 @@
-# Скопируйте: cp .env.docker.example .env
+# Docker: лучше запустить интерактивный установщик:
-# Используется docker compose (переменные подставляются в compose)
+#   bash scripts/install.sh
+# Или вручную: cp .env.docker.example .env
 
 POSTGRES_USER=shop
 POSTGRES_PASSWORD=shop
@@ -9,4 +10,7 @@ APP_PORT=3000
 SESSION_SECRET=change-me-to-a-long-random-string
 TRUST_PROXY=0
 
-# С профилем proxy (Caddy): TRUST_PROXY=1
+ADMIN_EMAIL=admin@site.com
+ADMIN_PASSWORD=admin
+ADMIN_NAME=Администратор
+SITE_URL=http://localhost:3000

README.md

@@ -17,6 +17,7 @@
 - Роли: клиент (`customer`) и **один** администратор (`admin`) — аккаунт из `ADMIN_EMAIL` в `.env`
 - Согласие на cookies
 - Подписка «сообщить о поступлении», если товара нет в наличии
+- Лояльность (баллы), промокоды со скидкой и таймером до конца акции
 
 ## Требования
 
@@ -111,6 +112,19 @@ bash scripts/setup-postgres-ubuntu.sh
 
 ---
 
+## Интерактивный установщик
+
+Задаёт вопросы: **Docker или Ubuntu**, данные **администратора**, **PostgreSQL**, URL сайта, опционально SMTP.
+
+```bash
+cd /path/to/shop
+bash scripts/install.sh
+```
+
+Нативная установка на сервере — от root: `sudo bash scripts/install.sh`.
+
+---
+
 ## Быстрый развёртывание на Ubuntu
 
 Подставьте **URL своего репозитория** и каталог клона `SHOP_ROOT` (часто `/opt/shop`):
@@ -338,6 +352,7 @@ caddy/Caddyfile.docker.example
 deploy/shop.service
 scripts/
   setup-postgres-ubuntu.sh
+  install.sh
   install-postgresql-ubuntu.sh
   quick-deploy-ubuntu.sh
   fix-db-connection.sh

docker-compose.yml

@@ -23,6 +23,8 @@ services:
     build: .
     container_name: shop-app
     restart: unless-stopped
+    env_file:
+      - .env
     depends_on:
       postgres:
         condition: service_healthy
@@ -31,7 +33,6 @@ services:
       HOST: 0.0.0.0
       PORT: 3000
       TRUST_PROXY: ${TRUST_PROXY:-0}
-      SESSION_SECRET: ${SESSION_SECRET:-change-me-in-docker-compose-env}
       DATABASE_URL: postgresql://${POSTGRES_USER:-shop}:${POSTGRES_PASSWORD:-shop}@postgres:5432/${POSTGRES_DB:-shop}
     ports:
       - '${APP_PORT:-3000}:3000'

postgres/init/06_loyalty_promo.sql

@@ -0,0 +1,28 @@
+-- Лояльность и промокоды
+ALTER TABLE users ADD COLUMN IF NOT EXISTS loyalty_points INTEGER NOT NULL DEFAULT 0
+  CHECK (loyalty_points >= 0);
+
+CREATE TABLE IF NOT EXISTS promo_codes (
+  id SERIAL PRIMARY KEY,
+  code TEXT NOT NULL UNIQUE,
+  description TEXT NOT NULL DEFAULT '',
+  discount_type TEXT NOT NULL CHECK (discount_type IN ('percent', 'fixed')),
+  discount_value INTEGER NOT NULL CHECK (discount_value > 0),
+  starts_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+  expires_at TIMESTAMPTZ NOT NULL,
+  min_order_cents INTEGER NOT NULL DEFAULT 0 CHECK (min_order_cents >= 0),
+  max_uses INTEGER CHECK (max_uses IS NULL OR max_uses > 0),
+  use_count INTEGER NOT NULL DEFAULT 0 CHECK (use_count >= 0),
+  active BOOLEAN NOT NULL DEFAULT true,
+  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE INDEX IF NOT EXISTS idx_promo_codes_active ON promo_codes (active, expires_at);
+
+ALTER TABLE orders ADD COLUMN IF NOT EXISTS subtotal_cents INTEGER;
+ALTER TABLE orders ADD COLUMN IF NOT EXISTS discount_cents INTEGER NOT NULL DEFAULT 0;
+ALTER TABLE orders ADD COLUMN IF NOT EXISTS promo_code_id INTEGER REFERENCES promo_codes(id);
+ALTER TABLE orders ADD COLUMN IF NOT EXISTS loyalty_points_used INTEGER NOT NULL DEFAULT 0;
+ALTER TABLE orders ADD COLUMN IF NOT EXISTS loyalty_points_earned INTEGER NOT NULL DEFAULT 0;
+
+UPDATE orders SET subtotal_cents = total_cents WHERE subtotal_cents IS NULL;

scripts/install.sh

@@ -0,0 +1,257 @@
+#!/bin/bash
+# Интерактивный установщик Shop
+#   bash scripts/install.sh
+#   sudo bash scripts/install.sh   (нативная установка на Ubuntu)
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
+
+# --- ввод ---
+read_default() {
+  local prompt="$1"
+  local default="$2"
+  local value
+  if [ -n "$default" ]; then
+    read -rp "$prompt [$default]: " value
+    echo "${value:-$default}"
+  else
+    read -rp "$prompt: " value
+    echo "$value"
+  fi
+}
+
+read_secret() {
+  local prompt="$1"
+  local value
+  read -rsp "$prompt" value
+  echo ""
+  echo "$value"
+}
+
+read_secret_confirm() {
+  local prompt="$1"
+  local a b
+  while true; do
+    a=$(read_secret "$prompt")
+    b=$(read_secret "Повторите: ")
+    if [ "$a" = "$b" ]; then
+      echo "$a"
+      return
+    fi
+    echo "Пароли не совпадают. Попробуйте снова."
+  done
+}
+
+gen_secret() {
+  if command -v openssl >/dev/null; then
+    openssl rand -hex 32
+  else
+    head -c 32 /dev/urandom | od -An -tx1 | tr -d ' \n'
+  fi
+}
+
+# Безопасная запись значения в .env (одинарные кавычки)
+env_quote() {
+  printf "'%s'" "$(printf '%s' "$1" | sed "s/'/'\\\\''/g")"
+}
+
+email_ok() {
+  [[ "$1" =~ ^[^\s@]+@[^\s@]+\.[^\s@]+$ ]]
+}
+
+# --- главная ---
+clear 2>/dev/null || true
+echo "============================================"
+echo "  Shop — интерактивная установка"
+echo "============================================"
+echo ""
+
+# Каталог установки
+if [ -f "$REPO_ROOT/package.json" ]; then
+  INSTALL_DIR=$(read_default "Каталог установки" "$REPO_ROOT")
+else
+  INSTALL_DIR=$(read_default "Каталог установки" "/opt/shop")
+  if [ ! -f "$INSTALL_DIR/package.json" ]; then
+    GIT_URL=$(read_default "URL git-репозитория" "")
+    if [ -z "$GIT_URL" ]; then
+      echo "Ошибка: укажите URL репозитория или запустите установщик из клона."
+      exit 1
+    fi
+    echo "Клонирование $GIT_URL -> $INSTALL_DIR ..."
+    mkdir -p "$(dirname "$INSTALL_DIR")"
+    git clone "$GIT_URL" "$INSTALL_DIR"
+  fi
+fi
+
+cd "$INSTALL_DIR"
+export SHOP_ROOT="$INSTALL_DIR"
+
+# Режим
+echo ""
+echo "Способ установки:"
+echo "  1) Docker Compose (PostgreSQL + приложение в контейнерах)"
+echo "  2) Без Docker (Ubuntu: Node.js + PostgreSQL + systemd)"
+echo ""
+MODE=$(read_default "Выберите [1/2]" "1")
+
+# Администратор
+echo ""
+echo "--- Администратор магазина (единственный admin) ---"
+ADMIN_EMAIL=$(read_default "Email администратора" "admin@site.com")
+while ! email_ok "$ADMIN_EMAIL"; do
+  echo "Некорректный email."
+  ADMIN_EMAIL=$(read_default "Email администратора" "admin@site.com")
+done
+ADMIN_NAME=$(read_default "Имя администратора" "Администратор")
+ADMIN_PASSWORD=$(read_secret_confirm "Пароль администратора: ")
+
+# База данных
+echo ""
+echo "--- PostgreSQL ---"
+PG_USER=$(read_default "Пользователь БД" "shop")
+PG_PASS=$(read_secret_confirm "Пароль БД: ")
+PG_DB=$(read_default "Имя базы данных" "shop")
+
+if [ "$MODE" = "1" ]; then
+  PG_HOST="postgres"
+  PG_PORT="5432"
+  APP_PORT=$(read_default "Порт сайта на хосте" "3000")
+  TRUST_PROXY="0"
+  echo ""
+  read -rp "Включить Caddy (HTTPS, порты 80/443)? [y/N]: " USE_CADDY
+  if [[ "${USE_CADDY,,}" == "y" || "${USE_CADDY,,}" == "yes" ]]; then
+    TRUST_PROXY="1"
+    USE_CADDY=1
+  else
+    USE_CADDY=0
+  fi
+else
+  PG_HOST=$(read_default "Хост PostgreSQL" "127.0.0.1")
+  PG_PORT=$(read_default "Порт PostgreSQL" "5432")
+  APP_PORT="3000"
+  TRUST_PROXY=$(read_default "За reverse proxy (Caddy)? TRUST_PROXY [1/0]" "1")
+  USE_CADDY=0
+fi
+
+# Сайт и секрет
+echo ""
+echo "--- Прочие настройки ---"
+if [ "$MODE" = "1" ] && [ "$USE_CADDY" = "1" ]; then
+  SITE_DEFAULT="https://shop.example.com"
+else
+  SITE_DEFAULT="http://localhost:${APP_PORT}"
+fi
+SITE_URL=$(read_default "URL сайта (SITE_URL)" "$SITE_DEFAULT")
+SESSION_SECRET=$(read_default "SESSION_SECRET (Enter = сгенерировать)" "")
+SESSION_SECRET=${SESSION_SECRET:-$(gen_secret)}
+
+echo ""
+read -rp "Настроить SMTP для писем? [y/N]: " SET_SMTP
+SMTP_BLOCK=""
+if [[ "${SET_SMTP,,}" == "y" || "${SET_SMTP,,}" == "yes" ]]; then
+  SMTP_HOST=$(read_default "SMTP_HOST" "smtp.example.com")
+  SMTP_PORT=$(read_default "SMTP_PORT" "587")
+  SMTP_USER=$(read_default "SMTP_USER" "")
+  SMTP_PASS=$(read_secret "SMTP_PASS: ")
+  SMTP_FROM=$(read_default "SMTP_FROM" "shop@example.com")
+  SMTP_BLOCK="# SMTP
+SMTP_HOST=${SMTP_HOST}
+SMTP_PORT=${SMTP_PORT}
+SMTP_SECURE=false
+SMTP_USER=${SMTP_USER}
+SMTP_PASS=${SMTP_PASS}
+SMTP_FROM=${SMTP_FROM}
+"
+fi
+
+DATABASE_URL="postgresql://${PG_USER}:${PG_PASS}@${PG_HOST}:${PG_PORT}/${PG_DB}"
+
+# --- запись .env ---
+ENV_FILE="$INSTALL_DIR/.env"
+APP_HOST=$([ "$MODE" = "1" ] && echo "0.0.0.0" || echo "127.0.0.1")
+{
+  echo "# Создано scripts/install.sh $(date -Iseconds)"
+  echo ""
+  echo "PORT=${APP_PORT}"
+  echo "HOST=${APP_HOST}"
+  echo "NODE_ENV=production"
+  echo "TRUST_PROXY=${TRUST_PROXY}"
+  echo "SESSION_SECRET=$(env_quote "$SESSION_SECRET")"
+  echo ""
+  echo "ADMIN_EMAIL=$(env_quote "$ADMIN_EMAIL")"
+  echo "ADMIN_PASSWORD=$(env_quote "$ADMIN_PASSWORD")"
+  echo "ADMIN_NAME=$(env_quote "$ADMIN_NAME")"
+  echo ""
+  echo "SITE_URL=$(env_quote "$SITE_URL")"
+  echo ""
+  if [ -n "$SMTP_BLOCK" ]; then
+    echo "$SMTP_BLOCK"
+  fi
+  echo "# PostgreSQL"
+  echo "POSTGRES_USER=$(env_quote "$PG_USER")"
+  echo "POSTGRES_PASSWORD=$(env_quote "$PG_PASS")"
+  echo "POSTGRES_DB=$(env_quote "$PG_DB")"
+  echo "DATABASE_URL=$(env_quote "$DATABASE_URL")"
+  echo "PGHOST=$(env_quote "$PG_HOST")"
+  echo "PGPORT=${PG_PORT}"
+  echo "PGUSER=$(env_quote "$PG_USER")"
+  echo "PGPASSWORD=$(env_quote "$PG_PASS")"
+  echo "PGDATABASE=$(env_quote "$PG_DB")"
+} > "$ENV_FILE"
+chmod 600 "$ENV_FILE" 2>/dev/null || true
+echo ""
+echo "Сохранено: $ENV_FILE"
+
+# --- установка ---
+echo ""
+if [ "$MODE" = "1" ]; then
+  echo "=== Установка через Docker ==="
+  if ! command -v docker >/dev/null; then
+    echo "Ошибка: Docker не установлен. Установите Docker и повторите."
+    exit 1
+  fi
+  if ! docker compose version >/dev/null 2>&1; then
+    echo "Ошибка: нужен Docker Compose v2 (docker compose)."
+    exit 1
+  fi
+  COMPOSE_CMD=(docker compose)
+  if [ "$USE_CADDY" = "1" ]; then
+    echo "Запуск: postgres + app + caddy ..."
+    "${COMPOSE_CMD[@]}" --profile proxy up -d --build
+  else
+    echo "Запуск: postgres + app ..."
+    "${COMPOSE_CMD[@]}" up -d --build
+  fi
+  echo "Ожидание health..."
+  sleep 5
+  curl -sf "http://127.0.0.1:${APP_PORT}/health" && echo "" || echo "Проверьте: docker compose logs app"
+else
+  echo "=== Установка без Docker (Ubuntu) ==="
+  if [ "$(id -u)" -ne 0 ]; then
+    echo "Запустите с root: sudo bash scripts/install.sh"
+    exit 1
+  fi
+  bash "$SCRIPT_DIR/install-postgresql-ubuntu.sh"
+  export DB_USER="$PG_USER" DB_PASS="$PG_PASS" DB_NAME="$PG_DB"
+  bash "$SCRIPT_DIR/setup-postgres-ubuntu.sh"
+  npm install --omit=dev
+  bash "$SCRIPT_DIR/install-shop-service.sh"
+fi
+
+echo ""
+echo "============================================"
+echo "  Установка завершена"
+echo "============================================"
+echo "  Каталог:    $INSTALL_DIR"
+echo "  Сайт:       $SITE_URL"
+echo "  Админ:      $ADMIN_EMAIL"
+if [ "$MODE" = "1" ]; then
+  echo "  Порт:       $APP_PORT"
+  echo "  Логи:       docker compose -f $INSTALL_DIR/docker-compose.yml logs -f"
+else
+  echo "  Служба:     systemctl status shop"
+  echo "  Health:     curl http://127.0.0.1:3000/health"
+fi
+echo "  Обновление: bash $INSTALL_DIR/scripts/server-update.sh"
+echo "============================================"

src/public/css/style.css

@@ -547,6 +547,106 @@ a:hover {
   border-radius: 6px;
 }
 
+.cart-sidebar {
+  display: grid;
+  gap: 1rem;
+  margin-top: 1.25rem;
+  max-width: 420px;
+}
+
+@media (min-width: 900px) {
+  .cart-table-wrap {
+    display: grid;
+    grid-template-columns: 1fr minmax(280px, 360px);
+    gap: 1.5rem;
+    align-items: start;
+  }
+
+  .cart-sidebar {
+    margin-top: 0;
+  }
+}
+
+.promo-box__title {
+  margin: 0 0 0.75rem;
+  font-size: 1rem;
+}
+
+.promo-box__form {
+  display: flex;
+  gap: 0.5rem;
+  flex-wrap: wrap;
+}
+
+.promo-box__form .input {
+  flex: 1;
+  min-width: 120px;
+}
+
+.promo-box__applied {
+  margin: 0 0 0.5rem;
+}
+
+.promo-box__discount {
+  color: var(--success);
+  margin: 0 0 0.5rem;
+}
+
+.promo-countdown {
+  font-size: 0.9rem;
+  margin: 0.5rem 0;
+  padding: 0.5rem 0.75rem;
+  background: rgba(253, 203, 110, 0.12);
+  border-radius: 8px;
+  border: 1px solid rgba(253, 203, 110, 0.35);
+}
+
+.promo-countdown__timer {
+  font-weight: 600;
+  color: var(--warn);
+  font-variant-numeric: tabular-nums;
+}
+
+.promo-countdown__timer--ended {
+  color: var(--error);
+}
+
+.cart-summary__dl {
+  margin: 0 0 1rem;
+}
+
+.cart-summary__dl dt {
+  color: var(--muted);
+  font-size: 0.9rem;
+}
+
+.cart-summary__dl dd {
+  margin: 0 0 0.5rem;
+  text-align: right;
+}
+
+.cart-summary__dl dt,
+.cart-summary__dl dd {
+  display: inline-block;
+  width: 48%;
+  vertical-align: top;
+}
+
+.cart-summary__discount {
+  color: var(--success);
+}
+
+.cart-summary__total-label,
+.cart-summary__total {
+  font-size: 1.1rem;
+  font-weight: 600;
+}
+
+.checkout-promo {
+  font-size: 0.9rem;
+  margin: 0.75rem 0;
+}
+
 .cart-actions {
   display: flex;
   flex-wrap: wrap;

src/public/js/promo-countdown.js

@@ -0,0 +1,34 @@
+(function () {
+  function pad(n) {
+    return String(n).padStart(2, '0');
+  }
+
+  function formatRemaining(ms) {
+    if (ms <= 0) return 'акция завершена';
+    const s = Math.floor(ms / 1000);
+    const d = Math.floor(s / 86400);
+    const h = Math.floor((s % 86400) / 3600);
+    const m = Math.floor((s % 3600) / 60);
+    const sec = s % 60;
+    if (d > 0) return `${d} д ${pad(h)}:${pad(m)}:${pad(sec)}`;
+    return `${pad(h)}:${pad(m)}:${pad(sec)}`;
+  }
+
+  document.querySelectorAll('.promo-countdown[data-expires]').forEach((el) => {
+    const expires = new Date(el.dataset.expires).getTime();
+    const timer = el.querySelector('.promo-countdown__timer');
+    if (!timer || Number.isNaN(expires)) return;
+
+    function tick() {
+      const left = expires - Date.now();
+      timer.textContent = formatRemaining(left);
+      if (left <= 0) timer.classList.add('promo-countdown__timer--ended');
+    }
+
+    tick();
+    const id = setInterval(tick, 1000);
+    if (typeof window !== 'undefined') {
+      window.addEventListener('beforeunload', () => clearInterval(id));
+    }
+  });
+})();

src/routes/account.js

@@ -22,7 +22,7 @@ router.use((req, res, next) => {
 
 async function loadAccountUser(userId) {
   const { rows } = await query(
-    'SELECT id, email, name, role, created_at, passkey_enabled FROM users WHERE id = $1',
+    'SELECT id, email, name, role, created_at, passkey_enabled, loyalty_points FROM users WHERE id = $1',
     [userId]
   );
   return rows[0];

src/routes/admin.js

@@ -173,4 +173,62 @@ router.post(
   })
 );
 
+router.get(
+  '/promo-codes',
+  asyncHandler(async (req, res) => {
+    const { rows: promos } = await query(
+      `SELECT * FROM promo_codes ORDER BY created_at DESC`
+    );
+    res.render('admin/promo-codes', {
+      title: 'Промокоды',
+      promos,
+      created: req.query.created === '1',
+    });
+  })
+);
+
+router.post(
+  '/promo-codes',
+  asyncHandler(async (req, res) => {
+    const code = (req.body.code || '').trim().toUpperCase();
+    const description = (req.body.description || '').trim();
+    const discount_type = req.body.discount_type === 'fixed' ? 'fixed' : 'percent';
+    const discount_value = parseInt(req.body.discount_value, 10);
+    const days = Math.max(1, parseInt(req.body.valid_days, 10) || 30);
+    const min_order_cents = Math.max(0, parseInt(req.body.min_order_rub, 10) || 0) * 100;
+    const max_uses = req.body.max_uses ? parseInt(req.body.max_uses, 10) : null;
+
+    if (!code || !discount_value) {
+      return res.redirect('/admin/promo-codes?error=1');
+    }
+
+    const expires = new Date();
+    expires.setDate(expires.getDate() + days);
+
+    const value =
+      discount_type === 'percent'
+        ? Math.min(100, discount_value)
+        : discount_value * 100;
+
+    await query(
+      `INSERT INTO promo_codes (code, description, discount_type, discount_value, expires_at, min_order_cents, max_uses)
+       VALUES ($1, $2, $3, $4, $5, $6, $7)`,
+      [code, description, discount_type, value, expires.toISOString(), min_order_cents, max_uses]
+    );
+
+    res.redirect('/admin/promo-codes?created=1');
+  })
+);
+
+router.post(
+  '/promo-codes/:id/toggle',
+  asyncHandler(async (req, res) => {
+    await query(
+      `UPDATE promo_codes SET active = NOT active WHERE id = $1`,
+      [req.params.id]
+    );
+    res.redirect('/admin/promo-codes');
+  })
+);
+
 module.exports = router;

src/routes/promo.js

@@ -0,0 +1,86 @@
+const express = require('express');
+const { formatPrice } = require('../db');
+const { getCart, cartCount, cartItems } = require('../cart');
+const { requireCookieConsent } = require('../middleware/cookieConsent');
+const { asyncHandler } = require('../utils/asyncHandler');
+const promoService = require('../services/promo');
+const loyaltyService = require('../services/loyalty');
+const { buildCartPricing } = require('../services/pricing');
+
+const router = express.Router();
+
+router.use(requireCookieConsent);
+router.use((req, res, next) => {
+  res.locals.cartCount = cartCount(getCart(req));
+  res.locals.formatPrice = formatPrice;
+  next();
+});
+
+function cartRedirect(msg, type = 'error') {
+  const param = type === 'success' ? 'promo_ok' : 'promo_error';
+  return `/cart?${param}=${encodeURIComponent(msg)}`;
+}
+
+router.post(
+  '/cart/promo',
+  asyncHandler(async (req, res) => {
+    const cart = getCart(req);
+    const items = await cartItems(cart);
+    if (!items.length) {
+      return res.redirect(cartRedirect('Корзина пуста'));
+    }
+
+    const subtotal = items.reduce((s, i) => s + i.line_total, 0);
+    const promo = await promoService.findPromoByCode(req.body.code);
+    const check = promoService.validatePromo(promo, subtotal);
+    if (!check.ok) {
+      delete req.session.appliedPromoCode;
+      return res.redirect(cartRedirect(check.error));
+    }
+
+    req.session.appliedPromoCode = promo.code;
+    res.redirect(cartRedirect(`Промокод ${promo.code} применён`, 'success'));
+  })
+);
+
+router.post('/cart/promo/remove', (req, res) => {
+  delete req.session.appliedPromoCode;
+  res.redirect(cartRedirect('Промокод удалён', 'success'));
+});
+
+router.post(
+  '/cart/loyalty',
+  asyncHandler(async (req, res) => {
+    if (!req.session.userId) {
+      return res.redirect('/login?next=/cart');
+    }
+
+    const cart = getCart(req);
+    const items = await cartItems(cart);
+    if (!items.length) {
+      return res.redirect(cartRedirect('Корзина пуста'));
+    }
+
+    const pricing = await buildCartPricing(items, req.session, req.session.userId);
+    const maxPoints = loyaltyService.pointsForDiscount(
+      Math.max(0, pricing.subtotal - pricing.promoDiscount)
+    );
+    const balance = pricing.loyaltyBalance;
+
+    if (req.body.use_all === '1') {
+      req.session.loyaltyPointsToUse = Math.min(balance, maxPoints);
+    } else {
+      const pts = Math.max(0, parseInt(req.body.points, 10) || 0);
+      req.session.loyaltyPointsToUse = Math.min(pts, balance, maxPoints);
+    }
+
+    res.redirect(cartRedirect('Баллы лояльности применены', 'success'));
+  })
+);
+
+router.post('/cart/loyalty/remove', (req, res) => {
+  delete req.session.loyaltyPointsToUse;
+  res.redirect(cartRedirect('Списание баллов отменено', 'success'));
+});
+
+module.exports = router;

src/routes/shop.js

@@ -4,6 +4,9 @@ const { getCart, cartCount, cartItems, cartTotal } = require('../cart');
 const { requireAuth } = require('../middleware/auth');
 const { requireCookieConsent } = require('../middleware/cookieConsent');
 const { asyncHandler } = require('../utils/asyncHandler');
+const { buildCartPricing } = require('../services/pricing');
+const promoService = require('../services/promo');
+const loyaltyService = require('../services/loyalty');
 
 const router = express.Router();
 
@@ -128,14 +131,21 @@ router.get(
   asyncHandler(async (req, res) => {
     const cart = getCart(req);
     const items = await cartItems(cart);
-    const total = cartTotal(items);
+    const pricing = await buildCartPricing(items, req.session, req.session.userId);
     const errorMsg = req.query.error ? decodeURIComponent(String(req.query.error)) : null;
+    const promoOk = req.query.promo_ok ? decodeURIComponent(String(req.query.promo_ok)) : null;
+    const promoErr = req.query.promo_error
+      ? decodeURIComponent(String(req.query.promo_error))
+      : null;
 
     res.render('cart', {
       title: 'Корзина',
       items,
-      total,
+      pricing,
+      total: pricing.total,
       error: errorMsg,
+      promoOk,
+      promoErr,
     });
   })
 );
@@ -207,10 +217,13 @@ router.get(
       return res.redirect('/cart');
     }
 
+    const pricing = await buildCartPricing(items, req.session, req.session.userId);
+
     res.render('checkout', {
       title: 'Оформление заказа',
       items,
-      total: cartTotal(items),
+      pricing,
+      total: pricing.total,
       error: null,
     });
   })
@@ -227,17 +240,19 @@ router.post(
       return res.redirect('/cart');
     }
 
+    const pricing = await buildCartPricing(items, req.session, req.session.userId);
     const { name, email, phone, address } = req.body;
+
     if (!name?.trim() || !email?.trim() || !address?.trim()) {
       return res.status(400).render('checkout', {
         title: 'Оформление заказа',
         items,
-        total: cartTotal(items),
+        pricing,
+        total: pricing.total,
         error: 'Заполните имя, email и адрес доставки',
       });
     }
 
-    const total = cartTotal(items);
     const client = await pool.connect();
 
     try {
@@ -253,13 +268,40 @@ router.post(
         }
       }
 
+      let promoId = null;
+      if (pricing.promo) {
+        const promoRow = await promoService.findPromoByCode(pricing.promo.code);
+        const check = promoService.validatePromo(
+          promoRow,
+          pricing.subtotal
+        );
+        if (!check.ok) throw new Error(check.error);
+        promoId = promoRow.id;
+      }
+
+      if (pricing.loyaltyPointsUsed > 0) {
+        const bal = await loyaltyService.getBalance(req.session.userId);
+        if (bal < pricing.loyaltyPointsUsed) {
+          throw new Error('Недостаточно баллов лояльности');
+        }
+      }
+
       const orderResult = await client.query(
-        `INSERT INTO orders (user_id, status, total_cents, customer_name, customer_email, customer_phone, address)
+        `INSERT INTO orders (
-         VALUES ($1, 'pending', $2, $3, $4, $5, $6)
+           user_id, status, subtotal_cents, discount_cents, total_cents,
+           promo_code_id, loyalty_points_used, loyalty_points_earned,
+           customer_name, customer_email, customer_phone, address
+         )
+         VALUES ($1, 'pending', $2, $3, $4, $5, $6, $7, $8, $9, $10, $11)
          RETURNING id`,
         [
           req.session.userId,
-          total,
+          pricing.subtotal,
+          pricing.promoDiscount + pricing.loyaltyDiscount,
+          pricing.total,
+          promoId,
+          pricing.loyaltyPointsUsed,
+          pricing.pointsEarned,
           name.trim(),
           email.trim(),
           (phone || '').trim(),
@@ -268,6 +310,19 @@ router.post(
       );
       const orderId = orderResult.rows[0].id;
 
+      if (promoId) {
+        await promoService.incrementPromoUse(promoId, client);
+      }
+
+      if (pricing.loyaltyPointsUsed > 0 || pricing.pointsEarned > 0) {
+        await loyaltyService.applyLoyaltyOnOrder(
+          client,
+          req.session.userId,
+          pricing.loyaltyPointsUsed,
+          pricing.pointsEarned
+        );
+      }
+
       for (const item of items) {
         await client.query(
           `INSERT INTO order_items (order_id, product_id, quantity, price_cents)
@@ -282,6 +337,8 @@ router.post(
 
       await client.query('COMMIT');
       req.session.cart = {};
+      delete req.session.appliedPromoCode;
+      delete req.session.loyaltyPointsToUse;
       res.redirect(`/orders/${orderId}?success=1`);
     } catch (err) {
       await client.query('ROLLBACK');

src/seed-promo.js

@@ -0,0 +1,20 @@
+const { query } = require('./db');
+
+async function seedPromoCodes() {
+  const { rows } = await query('SELECT COUNT(*)::int AS n FROM promo_codes');
+  if (rows[0].n > 0) return;
+
+  const expires = new Date();
+  expires.setDate(expires.getDate() + 30);
+
+  await query(
+    `INSERT INTO promo_codes (code, description, discount_type, discount_value, expires_at, min_order_cents)
+     VALUES
+       ('WELCOME10', 'Скидка 10% новым покупателям', 'percent', 10, $1, 0),
+       ('SALE500', 'Скидка 500 ₽ от 3000 ₽', 'fixed', 50000, $1, 300000)`,
+    [expires.toISOString()]
+  );
+  console.log('Демо-промокоды: WELCOME10, SALE500');
+}
+
+module.exports = { seedPromoCodes };

src/server.js

@@ -7,6 +7,7 @@ const pgSession = require('connect-pg-simple')(session);
 const { pool, initSchema, checkConnection } = require('./db');
 const { runSeed } = require('./seed');
 const { seedAdmin } = require('./seed-admin');
+const { seedPromoCodes } = require('./seed-promo');
 const { loadUser } = require('./middleware/auth');
 const { loadCookieConsent } = require('./middleware/cookieConsent');
 const healthRoutes = require('./routes/health');
@@ -19,6 +20,7 @@ const passwordResetRoutes = require('./routes/password-reset');
 const reservationsRoutes = require('./routes/reservations');
 const passkeyRoutes = require('./routes/passkey');
 const stockAlertsRoutes = require('./routes/stock-alerts');
+const promoRoutes = require('./routes/promo');
 
 const PORT = process.env.PORT || 3000;
 const HOST = process.env.HOST || '0.0.0.0';
@@ -29,6 +31,7 @@ async function start() {
   await initSchema();
   await runSeed();
   await seedAdmin();
+  await seedPromoCodes();
 
   const app = express();
 
@@ -70,6 +73,7 @@ async function start() {
   app.use('/', passwordResetRoutes);
   app.use('/reservations', reservationsRoutes);
   app.use('/', stockAlertsRoutes);
+  app.use('/', promoRoutes);
   app.use('/', shopRoutes);
   app.use('/', authRoutes);
   app.use('/webauthn', passkeyRoutes);

src/services/loyalty.js

@@ -0,0 +1,48 @@
+const { query } = require('../db');
+
+/** Баллов за каждые 100 ₽ subtotal после скидок */
+const EARN_PER_100_RUB = 10;
+/** 1 балл = 1 копейка скидки */
+const POINT_VALUE_CENTS = 1;
+
+async function getBalance(userId) {
+  const { rows } = await query('SELECT loyalty_points FROM users WHERE id = $1', [
+    userId,
+  ]);
+  return rows[0]?.loyalty_points ?? 0;
+}
+
+function calcEarnedPoints(payableCents) {
+  if (payableCents <= 0) return 0;
+  return Math.floor((payableCents / 10000) * EARN_PER_100_RUB);
+}
+
+function calcLoyaltyDiscountCents(pointsToUse, balance, maxCents) {
+  const use = Math.min(
+    Math.max(0, parseInt(pointsToUse, 10) || 0),
+    balance,
+    maxCents
+  );
+  return use * POINT_VALUE_CENTS;
+}
+
+function pointsForDiscount(discountCents) {
+  return Math.floor(discountCents / POINT_VALUE_CENTS);
+}
+
+async function applyLoyaltyOnOrder(client, userId, pointsUsed, pointsEarned) {
+  await client.query(
+    `UPDATE users SET loyalty_points = loyalty_points - $1 + $2 WHERE id = $3`,
+    [pointsUsed, pointsEarned, userId]
+  );
+}
+
+module.exports = {
+  EARN_PER_100_RUB,
+  POINT_VALUE_CENTS,
+  getBalance,
+  calcEarnedPoints,
+  calcLoyaltyDiscountCents,
+  pointsForDiscount,
+  applyLoyaltyOnOrder,
+};

src/services/pricing.js

@@ -0,0 +1,66 @@
+const promoService = require('./promo');
+const loyaltyService = require('./loyalty');
+
+async function buildCartPricing(items, session, userId) {
+  const subtotal = items.reduce((s, i) => s + i.line_total, 0);
+
+  let promo = null;
+  let promoDiscount = 0;
+  let promoError = null;
+
+  if (session.appliedPromoCode) {
+    promo = await promoService.findPromoByCode(session.appliedPromoCode);
+    const check = promoService.validatePromo(promo, subtotal);
+    if (!check.ok) {
+      promoError = check.error;
+      promo = null;
+      delete session.appliedPromoCode;
+    } else {
+      promoDiscount = promoService.calcPromoDiscountCents(promo, subtotal);
+    }
+  }
+
+  const afterPromo = Math.max(0, subtotal - promoDiscount);
+
+  let loyaltyBalance = 0;
+  let loyaltyDiscount = 0;
+  let loyaltyPointsUsed = 0;
+
+  if (userId) {
+    loyaltyBalance = await loyaltyService.getBalance(userId);
+    const requested = session.loyaltyPointsToUse ?? 0;
+    loyaltyDiscount = loyaltyService.calcLoyaltyDiscountCents(
+      requested,
+      loyaltyBalance,
+      afterPromo
+    );
+    loyaltyPointsUsed = loyaltyService.pointsForDiscount(loyaltyDiscount);
+  }
+
+  const total = Math.max(0, afterPromo - loyaltyDiscount);
+  const pointsEarned =
+    userId && total > 0 ? loyaltyService.calcEarnedPoints(total) : 0;
+
+  return {
+    subtotal,
+    promoDiscount,
+    loyaltyDiscount,
+    loyaltyPointsUsed,
+    loyaltyPointsUsedDisplay: loyaltyPointsUsed,
+    loyaltyBalance,
+    pointsEarned,
+    total,
+    promo: promo
+      ? {
+          code: promo.code,
+          description: promo.description,
+          discount_type: promo.discount_type,
+          discount_value: promo.discount_value,
+          expires_at: promo.expires_at,
+        }
+      : null,
+    promoError,
+  };
+}
+
+module.exports = { buildCartPricing };

src/services/promo.js

@@ -0,0 +1,62 @@
+const { query } = require('../db');
+
+function normalizeCode(code) {
+  return String(code || '')
+    .trim()
+    .toUpperCase()
+    .replace(/\s+/g, '');
+}
+
+async function findPromoByCode(code) {
+  const normalized = normalizeCode(code);
+  if (!normalized) return null;
+
+  const { rows } = await query(
+    `SELECT * FROM promo_codes WHERE UPPER(code) = $1 AND active = true`,
+    [normalized]
+  );
+  return rows[0] || null;
+}
+
+function validatePromo(promo, subtotalCents) {
+  if (!promo) return { ok: false, error: 'Промокод не найден' };
+
+  const now = new Date();
+  if (new Date(promo.starts_at) > now) {
+    return { ok: false, error: 'Промокод ещё не действует' };
+  }
+  if (new Date(promo.expires_at) <= now) {
+    return { ok: false, error: 'Срок действия промокода истёк' };
+  }
+  if (promo.max_uses != null && promo.use_count >= promo.max_uses) {
+    return { ok: false, error: 'Лимит использований промокода исчерпан' };
+  }
+  if (subtotalCents < promo.min_order_cents) {
+    const min = (promo.min_order_cents / 100).toFixed(0);
+    return { ok: false, error: `Минимальная сумма заказа ${min} ₽` };
+  }
+
+  return { ok: true };
+}
+
+function calcPromoDiscountCents(promo, subtotalCents) {
+  if (!promo) return 0;
+  if (promo.discount_type === 'percent') {
+    const pct = Math.min(100, Math.max(1, promo.discount_value));
+    return Math.floor((subtotalCents * pct) / 100);
+  }
+  return Math.min(subtotalCents, promo.discount_value);
+}
+
+async function incrementPromoUse(promoId, client) {
+  const q = client ? client.query.bind(client) : query;
+  await q('UPDATE promo_codes SET use_count = use_count + 1 WHERE id = $1', [promoId]);
+}
+
+module.exports = {
+  normalizeCode,
+  findPromoByCode,
+  validatePromo,
+  calcPromoDiscountCents,
+  incrementPromoUse,
+};

src/views/account/index.ejs

@@ -29,6 +29,8 @@
           <dd><%= new Date(user.created_at).toLocaleString('ru-RU') %></dd>
           <dt>Заказов</dt>
           <dd><%= orderCount %></dd>
+          <dt>Баллы лояльности</dt>
+          <dd><strong><%= user.loyalty_points || 0 %></strong> <span class="muted">(1 балл = 1 коп. скидки)</span></dd>
         </dl>
         <div class="account-actions">
           <a href="/orders" class="btn btn--primary">Мои заказы</a>

src/views/admin/dashboard.ejs

@@ -7,6 +7,7 @@
     <a href="/admin/orders" class="admin-nav__link">Заказы</a>
     <a href="/admin/users" class="admin-nav__link">Пользователи</a>
     <a href="/admin/products" class="admin-nav__link">Товары</a>
+    <a href="/admin/promo-codes" class="admin-nav__link">Промокоды</a>
     <a href="/admin/reservations" class="admin-nav__link">Бронирования</a>
     <a href="/" class="admin-nav__link">В магазин</a>
   </nav>

src/views/admin/orders.ejs

@@ -7,6 +7,7 @@
     <a href="/admin/orders" class="admin-nav__link admin-nav__link--active">Заказы</a>
     <a href="/admin/users" class="admin-nav__link">Пользователи</a>
     <a href="/admin/products" class="admin-nav__link">Товары</a>
+    <a href="/admin/promo-codes" class="admin-nav__link">Промокоды</a>
     <a href="/admin/reservations" class="admin-nav__link">Бронирования</a>
     <a href="/" class="admin-nav__link">В магазин</a>
   </nav>

src/views/admin/products.ejs

@@ -7,6 +7,7 @@
     <a href="/admin/orders" class="admin-nav__link">Заказы</a>
     <a href="/admin/users" class="admin-nav__link">Пользователи</a>
     <a href="/admin/products" class="admin-nav__link admin-nav__link--active">Товары</a>
+    <a href="/admin/promo-codes" class="admin-nav__link">Промокоды</a>
     <a href="/admin/reservations" class="admin-nav__link">Бронирования</a>
     <a href="/" class="admin-nav__link">В магазин</a>
   </nav>

src/views/admin/promo-codes.ejs

@@ -0,0 +1,69 @@
+<%- include('../partials/layout-start') %>
+
+<div class="admin-header">
+  <h1>Промокоды и скидки</h1>
+  <nav class="admin-nav">
+    <a href="/admin" class="admin-nav__link">Обзор</a>
+    <a href="/admin/orders" class="admin-nav__link">Заказы</a>
+    <a href="/admin/users" class="admin-nav__link">Пользователи</a>
+    <a href="/admin/products" class="admin-nav__link">Товары</a>
+    <a href="/admin/promo-codes" class="admin-nav__link admin-nav__link--active">Промокоды</a>
+    <a href="/admin/reservations" class="admin-nav__link">Бронирования</a>
+    <a href="/" class="admin-nav__link">В магазин</a>
+  </nav>
+</div>
+
+<% if (created) { %><p class="alert alert--success">Промокод создан</p><% } %>
+
+<section class="card account-section--narrow" style="margin-bottom:1.5rem">
+  <h2>Новый промокод</h2>
+  <form action="/admin/promo-codes" method="post" class="form">
+    <label class="label">Код <input type="text" name="code" class="input" required placeholder="SUMMER20"></label>
+    <label class="label">Описание <input type="text" name="description" class="input" placeholder="Летняя скидка"></label>
+    <label class="label">Тип скидки
+      <select name="discount_type" class="input">
+        <option value="percent">Процент %</option>
+        <option value="fixed">Фиксированная (₽)</option>
+      </select>
+    </label>
+    <label class="label">Значение (10 = 10% или 500 ₽) <input type="number" name="discount_value" class="input" min="1" required></label>
+    <label class="label">Действует дней <input type="number" name="valid_days" class="input" value="30" min="1"></label>
+    <label class="label">Мин. сумма заказа (₽) <input type="number" name="min_order_rub" class="input" value="0" min="0"></label>
+    <label class="label">Лимит использований (пусто = без лимита) <input type="number" name="max_uses" class="input" min="1"></label>
+    <button type="submit" class="btn btn--primary">Создать</button>
+  </form>
+</section>
+
+<table class="cart-table">
+  <thead>
+    <tr>
+      <th>Код</th>
+      <th>Скидка</th>
+      <th>До</th>
+      <th>Использовано</th>
+      <th>Статус</th>
+      <th></th>
+    </tr>
+  </thead>
+  <tbody>
+    <% promos.forEach(p => { %>
+      <tr>
+        <td><strong><%= p.code %></strong><br><span class="muted"><%= p.description %></span></td>
+        <td>
+          <% if (p.discount_type === 'percent') { %><%= p.discount_value %>%<% } else { %><%= formatPrice(p.discount_value) %><% } %>
+          <% if (p.min_order_cents > 0) { %><br><span class="muted">от <%= formatPrice(p.min_order_cents) %></span><% } %>
+        </td>
+        <td><%= new Date(p.expires_at).toLocaleString('ru-RU') %></td>
+        <td><%= p.use_count %><% if (p.max_uses) { %> / <%= p.max_uses %><% } %></td>
+        <td><%= p.active ? 'Активен' : 'Выкл.' %></td>
+        <td>
+          <form action="/admin/promo-codes/<%= p.id %>/toggle" method="post">
+            <button type="submit" class="btn btn--ghost btn--sm"><%= p.active ? 'Выключить' : 'Включить' %></button>
+          </form>
+        </td>
+      </tr>
+    <% }) %>
+  </tbody>
+</table>
+
+<%- include('../partials/layout-end') %>

src/views/admin/reservations.ejs

@@ -7,6 +7,7 @@
     <a href="/admin/orders" class="admin-nav__link">Заказы</a>
     <a href="/admin/users" class="admin-nav__link">Пользователи</a>
     <a href="/admin/products" class="admin-nav__link">Товары</a>
+    <a href="/admin/promo-codes" class="admin-nav__link">Промокоды</a>
     <a href="/admin/reservations" class="admin-nav__link admin-nav__link--active">Бронирования</a>
     <a href="/" class="admin-nav__link">В магазин</a>
   </nav>

src/views/admin/users.ejs

@@ -7,6 +7,7 @@
     <a href="/admin/orders" class="admin-nav__link">Заказы</a>
     <a href="/admin/users" class="admin-nav__link admin-nav__link--active">Пользователи</a>
     <a href="/admin/products" class="admin-nav__link">Товары</a>
+    <a href="/admin/promo-codes" class="admin-nav__link">Промокоды</a>
     <a href="/admin/reservations" class="admin-nav__link">Бронирования</a>
     <a href="/" class="admin-nav__link">В магазин</a>
   </nav>

src/views/cart.ejs

@@ -3,6 +3,8 @@
 <h1>Корзина</h1>
 
 <% if (error) { %><p class="alert alert--error"><%= error %></p><% } %>
+<% if (promoOk) { %><p class="alert alert--success"><%= promoOk %></p><% } %>
+<% if (promoErr) { %><p class="alert alert--error"><%= promoErr %></p><% } %>
 
 <% if (!items.length) { %>
   <p class="empty">Корзина пуста. <a href="/">Перейти в каталог</a></p>
@@ -39,16 +41,76 @@
         <% }) %>
       </tbody>
     </table>
-    <div class="cart-actions">
+
-      <button type="submit" class="btn btn--ghost">Обновить</button>
+    <div class="cart-sidebar">
-      <p class="cart-total">Итого: <strong><%= formatPrice(total) %></strong></p>
+      <section class="card promo-box">
+        <h2 class="promo-box__title">Промокод</h2>
+        <% if (pricing.promo) { %>
+          <p class="promo-box__applied">
+            <strong><%= pricing.promo.code %></strong>
+            <% if (pricing.promo.description) { %> — <%= pricing.promo.description %><% } %>
+          </p>
+          <p class="promo-box__discount">Скидка: −<%= formatPrice(pricing.promoDiscount) %></p>
+          <div class="promo-countdown" data-expires="<%= pricing.promo.expires_at %>">
+            <span class="promo-countdown__label">До конца акции:</span>
+            <span class="promo-countdown__timer">—</span>
+          </div>
+          <form action="/cart/promo/remove" method="post" class="inline-form">
+            <button type="submit" class="btn btn--ghost btn--sm">Убрать промокод</button>
+          </form>
+        <% } else { %>
+          <form action="/cart/promo" method="post" class="promo-box__form">
+            <input type="text" name="code" class="input" placeholder="WELCOME10" required autocomplete="off">
+            <button type="submit" class="btn btn--primary">Применить</button>
+          </form>
+        <% } %>
+      </section>
+
       <% if (user) { %>
-        <a href="/checkout" class="btn btn--primary btn--lg">Оформить заказ</a>
+        <section class="card promo-box">
+          <h2 class="promo-box__title">Баллы лояльности</h2>
+          <p class="muted">На счёте: <strong><%= pricing.loyaltyBalance %></strong> баллов (1 балл = 1 коп.)</p>
+          <% if (pricing.pointsEarned > 0) { %>
+            <p class="muted">За этот заказ начислим: +<%= pricing.pointsEarned %> баллов</p>
+          <% } %>
+          <% if (pricing.loyaltyDiscount > 0) { %>
+            <p class="promo-box__discount">Списано: −<%= formatPrice(pricing.loyaltyDiscount) %> (<%= pricing.loyaltyPointsUsed %> баллов)</p>
+            <form action="/cart/loyalty/remove" method="post">
+              <button type="submit" class="btn btn--ghost btn--sm">Отменить списание</button>
+            </form>
+          <% } else if (pricing.loyaltyBalance > 0) { %>
+            <form action="/cart/loyalty" method="post" class="promo-box__form">
+              <button type="submit" name="use_all" value="1" class="btn btn--ghost">Списать все доступные</button>
+            </form>
+          <% } %>
+        </section>
+      <% } %>
+
+      <section class="card cart-summary">
+        <dl class="cart-summary__dl">
+          <dt>Товары</dt>
+          <dd><%= formatPrice(pricing.subtotal) %></dd>
+          <% if (pricing.promoDiscount > 0) { %>
+            <dt>Промокод</dt>
+            <dd class="cart-summary__discount">−<%= formatPrice(pricing.promoDiscount) %></dd>
+          <% } %>
+          <% if (pricing.loyaltyDiscount > 0) { %>
+            <dt>Лояльность</dt>
+            <dd class="cart-summary__discount">−<%= formatPrice(pricing.loyaltyDiscount) %></dd>
+          <% } %>
+          <dt class="cart-summary__total-label">К оплате</dt>
+          <dd class="cart-summary__total"><%= formatPrice(pricing.total) %></dd>
+        </dl>
+        <% if (user) { %>
+          <a href="/checkout" class="btn btn--primary btn--lg btn--block">Оформить заказ</a>
         <% } else { %>
           <p class="hint"><a href="/login?next=/checkout">Войдите</a>, чтобы оформить заказ.</p>
         <% } %>
+      </section>
     </div>
   </form>
 <% } %>
 
+<script src="/js/promo-countdown.js"></script>
+
 <%- include('partials/layout-end') %>

src/views/checkout.ejs

@@ -36,8 +36,36 @@
         </li>
       <% }) %>
     </ul>
-    <p class="checkout-total">Итого: <strong><%= formatPrice(total) %></strong></p>
+    <% if (pricing.promo) { %>
+      <p class="checkout-promo">
+        Промокод <strong><%= pricing.promo.code %></strong>
+        <span class="promo-countdown" data-expires="<%= pricing.promo.expires_at %>">
+          (<span class="promo-countdown__timer">—</span>)
+        </span>
+      </p>
+    <% } %>
+    <dl class="cart-summary__dl">
+      <dt>Товары</dt>
+      <dd><%= formatPrice(pricing.subtotal) %></dd>
+      <% if (pricing.promoDiscount > 0) { %>
+        <dt>Скидка по промокоду</dt>
+        <dd class="cart-summary__discount">−<%= formatPrice(pricing.promoDiscount) %></dd>
+      <% } %>
+      <% if (pricing.loyaltyDiscount > 0) { %>
+        <dt>Баллы лояльности</dt>
+        <dd class="cart-summary__discount">−<%= formatPrice(pricing.loyaltyDiscount) %></dd>
+      <% } %>
+      <% if (pricing.pointsEarned > 0) { %>
+        <dt>Начислим баллов</dt>
+        <dd>+<%= pricing.pointsEarned %></dd>
+      <% } %>
+      <dt class="cart-summary__total-label">К оплате</dt>
+      <dd class="cart-summary__total"><%= formatPrice(pricing.total) %></dd>
+    </dl>
+    <p class="muted"><a href="/cart">Изменить корзину или промокод</a></p>
   </aside>
 </div>
 
+<script src="/js/promo-countdown.js"></script>
+
 <%- include('partials/layout-end') %>

src/views/order.ejs

@@ -22,7 +22,19 @@
       </li>
     <% }) %>
   </ul>
-  <p class="checkout-total">Итого: <strong><%= formatPrice(order.total_cents) %></strong></p>
+  <% const subtotal = order.subtotal_cents != null ? order.subtotal_cents : order.total_cents; %>
+  <% if (order.discount_cents > 0) { %>
+    <dl class="cart-summary__dl">
+      <dt>Товары</dt>
+      <dd><%= formatPrice(subtotal) %></dd>
+      <dt>Скидка</dt>
+      <dd class="cart-summary__discount">−<%= formatPrice(order.discount_cents) %></dd>
+    </dl>
+  <% } %>
+  <% if (order.loyalty_points_earned > 0) { %>
+    <p class="muted">Начислено баллов лояльности: +<%= order.loyalty_points_earned %></p>
+  <% } %>
+  <p class="checkout-total">К оплате: <strong><%= formatPrice(order.total_cents) %></strong></p>
 </div>
 
 <p><a href="/orders" class="link-back">← Все заказы</a></p>

wiki/Home.md

@@ -25,6 +25,14 @@
 
 Админ-панель доступна только этому аккаунту.
 
+## Установщик
+
+Интерактивно: админ, PostgreSQL, Docker или Ubuntu:
+
+```bash
+bash scripts/install.sh
+```
+
 ## Быстрый старт
 
 ### Docker

wiki/Server-Operations.md

@@ -17,6 +17,26 @@ test -f "$SHOP_ROOT/package.json" && echo OK || echo "Неверный SHOP_ROOT
 
 ---
 
+## Интерактивный установщик (рекомендуется)
+
+```bash
+cd "$SHOP_ROOT"
+bash scripts/install.sh
+```
+
+Скрипт спросит:
+
+1. **Docker** или **Ubuntu без Docker**
+2. Email, имя и пароль **администратора**
+3. Пользователь, пароль и имя базы **PostgreSQL**
+4. **URL сайта**, секрет сессий (можно сгенерировать)
+5. Опционально **SMTP**
+6. Для Docker — порт и включить ли **Caddy**
+
+Создаётся файл `.env`, затем запускается `docker compose` или `systemd`.
+
+---
+
 ## Первая установка (Ubuntu, без Docker)
 
 ```bash
@@ -73,7 +93,8 @@ bash scripts/server-update.sh
 
 | Скрипт | Назначение |
 |--------|------------|
-| `quick-deploy-ubuntu.sh` | Первая установка / полный цикл |
+| `install.sh` | **Интерактивная установка** (Docker или Ubuntu) |
+| `quick-deploy-ubuntu.sh` | Первая установка / полный цикл (без вопросов) |
 | `server-update.sh` | `git pull`, `npm install`, перезапуск shop |
 | `git-sync.sh` | Исправить detached HEAD, синхронизация с `main` |
 | `install-postgresql-ubuntu.sh` | PostgreSQL 17 через PGDG |