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Viewing file:     vendorSequence.js (590 B)      -rw-r--r--

// vendorSequence.js
const redis = require('../config/redis');

const SEQ_LIMIT = 10000;

// Atomically increment + reset when needed
async function getNextSequence(vendorId) {
  const key = `vendor:${vendorId}:seq`;
  let seq = await redis.incr(key);
  if (seq > SEQ_LIMIT) {
    await redis.set(key, 1);
    seq = 1;
  }
  return seq;
}

async function getCurrentSequence(vendorId) {
  const key = `vendor:${vendorId}:seq`;
  const value = await redis.get(key);
  return value ? parseInt(value, 10) : 0;
}

module.exports = { getNextSequence, getCurrentSequence };