/**
 * Payment Processing
 * Integration with agentic-payments library
 */
import { PaymentProvider, PaymentStatus } from '../types.js';
export class PaymentProcessor {
    config;
    storage;
    constructor(config, storage) {
        this.config = config;
        this.storage = storage;
    }
    /**
     * Process a payment
     */
    async processPayment(request) {
        try {
            const result = await this.chargePaymentMethod(request.paymentMethodId, request.amount, request.currency, request.description, request.metadata);
            return result;
        }
        catch (error) {
            return {
                transactionId: this.generateTransactionId(),
                status: PaymentStatus.Failed,
                amount: request.amount,
                currency: request.currency,
                error: error instanceof Error ? error.message : 'Payment failed',
                processedAt: new Date()
            };
        }
    }
    /**
     * Charge a payment method
     */
    async chargePaymentMethod(paymentMethodId, amount, currency, description, metadata) {
        // In production, this would integrate with agentic-payments
        // For now, simulate payment processing
        const result = {
            transactionId: this.generateTransactionId(),
            status: PaymentStatus.Succeeded,
            amount,
            currency,
            processedAt: new Date()
        };
        // Simulate provider-specific transaction IDs
        switch (this.config.provider) {
            case PaymentProvider.Stripe:
                result.providerTransactionId = `pi_${this.generateRandomCode(24)}`;
                break;
            case PaymentProvider.PayPal:
                result.providerTransactionId = `PAYID-${this.generateRandomCode(20)}`;
                break;
            case PaymentProvider.Crypto:
                result.providerTransactionId = `0x${this.generateRandomCode(64)}`;
                break;
        }
        // Simulate 1% payment failure rate in test mode
        if (this.config.testMode && Math.random() < 0.01) {
            result.status = PaymentStatus.Failed;
            result.error = 'Card declined';
        }
        return result;
    }
    /**
     * Refund a payment
     */
    async refundPayment(transactionId, amount, reason) {
        // Simulate refund processing
        return {
            transactionId: this.generateTransactionId(),
            status: PaymentStatus.Refunded,
            amount: amount || 0,
            currency: 'USD',
            providerTransactionId: `re_${this.generateRandomCode(24)}`,
            processedAt: new Date()
        };
    }
    /**
     * Validate payment method
     */
    async validatePaymentMethod(paymentMethodId) {
        // In production, validate with payment provider
        // For now, accept any non-empty ID
        return paymentMethodId.length > 0;
    }
    /**
     * Create setup intent (for adding payment methods)
     */
    async createSetupIntent(userId) {
        return {
            clientSecret: `seti_${this.generateRandomCode(32)}`,
            setupIntentId: `seti_${this.generateRandomCode(24)}`
        };
    }
    /**
     * Create payment intent
     */
    async createPaymentIntent(amount, currency, metadata) {
        return {
            clientSecret: `pi_${this.generateRandomCode(32)}`,
            paymentIntentId: `pi_${this.generateRandomCode(24)}`
        };
    }
    /**
     * Handle webhook events from payment provider
     */
    async handleWebhook(payload, signature) {
        // Verify webhook signature
        if (this.config.webhookSecret) {
            const isValid = this.verifyWebhookSignature(payload, signature);
            if (!isValid) {
                throw new Error('Invalid webhook signature');
            }
        }
        // Parse webhook payload
        const event = JSON.parse(payload);
        return event;
    }
    verifyWebhookSignature(payload, signature) {
        // In production, verify with provider's signature algorithm
        // For now, simple check
        return signature.length > 0;
    }
    generateTransactionId() {
        return `txn_${Date.now()}_${this.generateRandomCode(16)}`;
    }
    generateRandomCode(length) {
        const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
        let result = '';
        for (let i = 0; i < length; i++) {
            result += chars.charAt(Math.floor(Math.random() * chars.length));
        }
        return result;
    }
}
/**
 * Payment Provider Factory
 * Creates payment processor for specific provider
 */
export class PaymentProviderFactory {
    static create(provider, config, storage) {
        const paymentConfig = {
            provider,
            ...config
        };
        return new PaymentProcessor(paymentConfig, storage);
    }
    static createStripe(apiKey, storage) {
        return this.create(PaymentProvider.Stripe, { apiKey }, storage);
    }
    static createPayPal(clientId, clientSecret, storage) {
        return this.create(PaymentProvider.PayPal, { apiKey: clientId, secretKey: clientSecret }, storage);
    }
    static createCrypto(walletAddress, storage) {
        return this.create(PaymentProvider.Crypto, { apiKey: walletAddress }, storage);
    }
}
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