exports.up = (pgm) => {
  pgm.sql(`
    CREATE TABLE IF NOT EXISTS items (
      id SERIAL PRIMARY KEY,
      name TEXT NOT NULL,
      description TEXT,
      price_cents INTEGER NOT NULL,
      status TEXT NOT NULL DEFAULT 'available',
      reserved_until TIMESTAMPTZ,
      sold_at TIMESTAMPTZ,
      paypal_order_id TEXT,
      created_at TIMESTAMPTZ NOT NULL DEFAULT now()
    );

    CREATE TABLE IF NOT EXISTS item_images (
      id SERIAL PRIMARY KEY,
      item_id INTEGER NOT NULL REFERENCES items(id) ON DELETE CASCADE,
      image_path TEXT NOT NULL,
      sort_order INTEGER NOT NULL DEFAULT 0,
      created_at TIMESTAMPTZ NOT NULL DEFAULT now()
    );

    CREATE TABLE IF NOT EXISTS customers (
      id SERIAL PRIMARY KEY,
      email TEXT NOT NULL UNIQUE,
      password_hash TEXT NOT NULL,
      name TEXT,
      email_verified BOOLEAN NOT NULL DEFAULT false,
      marketing_consent BOOLEAN NOT NULL DEFAULT false,
      marketing_consent_at TIMESTAMPTZ,
      marketing_consent_text TEXT,
      unsubscribe_token TEXT NOT NULL UNIQUE,
      created_at TIMESTAMPTZ NOT NULL DEFAULT now()
    );

    CREATE TABLE IF NOT EXISTS customer_sessions (
      token TEXT PRIMARY KEY,
      customer_id INTEGER NOT NULL REFERENCES customers(id) ON DELETE CASCADE,
      expires_at TIMESTAMPTZ NOT NULL,
      created_at TIMESTAMPTZ NOT NULL DEFAULT now()
    );

    CREATE TABLE IF NOT EXISTS customer_tokens (
      token TEXT PRIMARY KEY,
      customer_id INTEGER NOT NULL REFERENCES customers(id) ON DELETE CASCADE,
      kind TEXT NOT NULL,
      expires_at TIMESTAMPTZ NOT NULL,
      created_at TIMESTAMPTZ NOT NULL DEFAULT now()
    );

    CREATE TABLE IF NOT EXISTS admin_settings (
      key TEXT PRIMARY KEY,
      value TEXT NOT NULL,
      updated_at TIMESTAMPTZ NOT NULL DEFAULT now()
    );
    INSERT INTO admin_settings (key, value) VALUES ('cart_expiry_hours', '24') ON CONFLICT (key) DO NOTHING;

    CREATE TABLE IF NOT EXISTS carts (
      id SERIAL PRIMARY KEY,
      customer_id INTEGER NOT NULL UNIQUE REFERENCES customers(id) ON DELETE CASCADE,
      created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
      updated_at TIMESTAMPTZ NOT NULL DEFAULT now()
    );

    CREATE TABLE IF NOT EXISTS cart_items (
      id SERIAL PRIMARY KEY,
      cart_id INTEGER NOT NULL REFERENCES carts(id) ON DELETE CASCADE,
      item_id INTEGER NOT NULL UNIQUE REFERENCES items(id) ON DELETE CASCADE,
      added_at TIMESTAMPTZ NOT NULL DEFAULT now(),
      expires_at TIMESTAMPTZ NOT NULL,
      last_reminder_sent_at TIMESTAMPTZ
    );

    CREATE TABLE IF NOT EXISTS shipping_addresses (
      id SERIAL PRIMARY KEY,
      customer_id INTEGER NOT NULL REFERENCES customers(id) ON DELETE CASCADE,
      full_name TEXT NOT NULL,
      address_line1 TEXT NOT NULL,
      address_line2 TEXT,
      city TEXT NOT NULL,
      state TEXT NOT NULL,
      postal_code TEXT NOT NULL,
      country TEXT NOT NULL DEFAULT 'US',
      is_default BOOLEAN NOT NULL DEFAULT false,
      usps_validated BOOLEAN NOT NULL DEFAULT false,
      usps_standardized JSONB,
      created_at TIMESTAMPTZ NOT NULL DEFAULT now()
    );

    CREATE TABLE IF NOT EXISTS checkouts (
      id SERIAL PRIMARY KEY,
      customer_id INTEGER REFERENCES customers(id) ON DELETE SET NULL,
      shipping_address_id INTEGER REFERENCES shipping_addresses(id) ON DELETE SET NULL,
      processor TEXT NOT NULL,
      processor_order_id TEXT,
      amount_cents INTEGER,
      status TEXT NOT NULL DEFAULT 'pending',
      raw_event JSONB,
      created_at TIMESTAMPTZ NOT NULL DEFAULT now()
    );

    CREATE TABLE IF NOT EXISTS checkout_items (
      checkout_id INTEGER NOT NULL REFERENCES checkouts(id) ON DELETE CASCADE,
      item_id INTEGER NOT NULL REFERENCES items(id) ON DELETE CASCADE,
      price_cents INTEGER NOT NULL,
      PRIMARY KEY (checkout_id, item_id)
    );

    CREATE TABLE IF NOT EXISTS orders (
      id SERIAL PRIMARY KEY,
      item_id INTEGER REFERENCES items(id),
      customer_id INTEGER REFERENCES customers(id) ON DELETE SET NULL,
      checkout_id INTEGER REFERENCES checkouts(id) ON DELETE SET NULL,
      processor TEXT NOT NULL,
      processor_order_id TEXT,
      amount_cents INTEGER,
      status TEXT,
      raw_event JSONB,
      created_at TIMESTAMPTZ NOT NULL DEFAULT now()
    );
  `);
};

// Deliberately no destructive down migration for the baseline — reverting this
// would drop every table and all data. If you ever need to roll back past this
// point, do it manually and deliberately, not via `migrate:down`.
exports.down = (pgm) => {
  pgm.sql(`SELECT 1;`);
};