// טוב: Adapter approach — Loose Coupling
interface PaymentGateway {
  charge(amount: number, currency: string, token: string): Promise<string>;
  refund(transactionId: string): Promise<void>;
}

class StripeAdapter implements PaymentGateway {
  private stripe = new Stripe(process.env.STRIPE_KEY!);

  async charge(amount: number, currency: string, token: string): Promise<string> {
    const intent = await this.stripe.paymentIntents.create({
      amount: Math.round(amount * 100),
      currency: currency.toLowerCase(),
      payment_method: token,
      confirm: true,
    });
    return intent.id;
  }

  async refund(transactionId: string): Promise<void> {
    await this.stripe.refunds.create({ payment_intent: transactionId });
  }
}

class GrowAdapter implements PaymentGateway {
  async charge(amount: number, currency: string, token: string): Promise<string> {
    // Grow Israeli payment gateway
    console.log(`Grow: charging ${amount} ${currency}`);
    return `grow_${Date.now()}`;
  }

  async refund(transactionId: string): Promise<void> {
    console.log(`Grow: refunding ${transactionId}`);
  }
}

// PaymentService לא יודע ולא אכפת לו מה ה-SDK
class PaymentService {
  constructor(private gateway: PaymentGateway) {}

  async processOrder(amount: number, token: string): Promise<string> {
    return this.gateway.charge(amount, 'USD', token);
  }
}

// Bootstrap — בוחרים Adapter לפי Environment
const gateway: PaymentGateway =
  process.env.PAYMENT_PROVIDER === 'stripe' ? new StripeAdapter() : new GrowAdapter();

const service = new PaymentService(gateway);
Adapter Pattern — התאמת ממשקים

Adapter Pattern — התאמת ממשקים

Adapter Pattern — התאמת ממשקים
