import { FastifyInstance } from 'fastify';
import { z } from 'zod';
import { verifyReceipt } from '../services/payment/huawei-iap.js';
import { activateSubscription, getSubscriptionStatus } from '../services/payment/subscription-service.js';

const verifyHuaweiSchema = z.object({
  purchaseToken: z.string().min(1),
  productId: z.string().min(1),
  tier: z.enum(['pro', 'proplus']),
});

export async function paymentRoutes(app: FastifyInstance): Promise<void> {
  app.post('/payment/verify-huawei', async (request) => {
    const parsed = verifyHuaweiSchema.safeParse(request.body);
    if (!parsed.success) {
      return { success: false, data: null, error: { code: 'VALIDATION_ERROR', message: parsed.error.issues[0]?.message } };
    }

    const result = await verifyReceipt(parsed.data.purchaseToken);

    if (!result.valid) {
      return { success: false, data: null, error: { code: 'INVALID_RECEIPT', message: 'Purchase verification failed' } };
    }

    const userId = (request.user as { userId: string }).userId;

    // Calculate expiry (1 month from now as default)
    const expiresAt = result.expiryTime
      ? new Date(result.expiryTime)
      : new Date(Date.now() + 30 * 24 * 60 * 60 * 1000);

    await activateSubscription(
      userId,
      'huawei',
      parsed.data.purchaseToken,
      parsed.data.tier,
      expiresAt,
    );

    const subscription = await getSubscriptionStatus(userId);
    return { success: true, data: subscription, error: null };
  });

  app.get('/payment/subscription', async (request) => {
    const userId = (request.user as { userId: string }).userId;
    const data = await getSubscriptionStatus(userId);
    return { success: true, data, error: null };
  });
}