backend/account-service/src/main/java/com/drinkool/services/OtpService.java

package com.drinkool.services;

import io.quarkus.redis.datasource.RedisDataSource;
import io.quarkus.redis.datasource.value.ValueCommands;
import jakarta.enterprise.context.ApplicationScoped;
import jakarta.inject.Inject;
import java.util.Random;

@ApplicationScoped
public class OtpService {

	private final ValueCommands<String, String> countCommands;

	@Inject
	public OtpService(RedisDataSource ds) {
		this.countCommands = ds.value(String.class);
	}

	public String generateAndSaveOtp(String phone) {
		String otp = String.format("%06d", new Random().nextInt(1000000));
		String key = "otp:" + phone;

		countCommands.setex(key, 300, otp);

		return otp;
	}

	public boolean verifyOtp(String phone, String inputOtp) {
		String key = "otp:" + phone;
		String savedOtp = countCommands.get(key);

		if (savedOtp != null && savedOtp.equals(inputOtp)) {
			countCommands.getdel(key);
			return true;
		}

		return false;
	}
}