-- Бронирование товаров
CREATE TABLE IF NOT EXISTS reservations (
  id SERIAL PRIMARY KEY,
  user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
  product_id INTEGER NOT NULL REFERENCES products(id) ON DELETE CASCADE,
  quantity INTEGER NOT NULL CHECK (quantity > 0),
  status TEXT NOT NULL DEFAULT 'active'
    CHECK (status IN ('active', 'fulfilled', 'cancelled', 'expired')),
  expires_at TIMESTAMPTZ NOT NULL DEFAULT (NOW() + INTERVAL '48 hours'),
  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

CREATE INDEX IF NOT EXISTS idx_reservations_user ON reservations(user_id);
CREATE INDEX IF NOT EXISTS idx_reservations_product ON reservations(product_id);
CREATE INDEX IF NOT EXISTS idx_reservations_status ON reservations(status);

-- Сброс пароля
CREATE TABLE IF NOT EXISTS password_reset_tokens (
  id SERIAL PRIMARY KEY,
  user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
  token_hash TEXT NOT NULL,
  expires_at TIMESTAMPTZ NOT NULL,
  used_at TIMESTAMPTZ,
  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

CREATE INDEX IF NOT EXISTS idx_password_reset_user ON password_reset_tokens(user_id);
CREATE INDEX IF NOT EXISTS idx_password_reset_expires ON password_reset_tokens(expires_at);