redis-util.js
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const MODULE_NAME = 'SDK-SUPPLIER-PRODUCT-QUOTA.REDIS-UTIL';
const DEFAULT_TTL = 3600 * 24 * 90;
const LIMITED_SET_NAME = 'SPQ_8FB2B6EC_MANAGED';
const redis = require('redis');
const { orderBy } = require('natural-orderby');
const config = require('komodo-sdk/config');
const logger = require('komodo-sdk/logger');
const redisClient = redis.createClient();
const composeKeyword = (product) => `SPQ_F7D526DB_COUNTER_${config.handler_name}_${product.trim().toUpperCase()}`;
const set = (product, val, xid) => new Promise((resolve) => {
if (!(product || '').trim()) {
resolve();
return;
}
const keyword = composeKeyword(product);
redisClient.set(keyword, Number(val), 'EX', DEFAULT_TTL, (err) => {
if (err) {
logger.warn(`F7D526DB ${MODULE_NAME}: Error on set value on redis`, {
xid, product, val, eCode: err.code, eMessage: err.message,
});
resolve();
return;
}
resolve(val);
});
});
const get = (product, xid) => new Promise((resolve) => {
if (!(product || '').trim()) {
resolve();
return;
}
const keyword = composeKeyword(product);
redisClient.get(keyword, (err, reply) => {
if (err) {
logger.warn(`277CFDD4 ${MODULE_NAME}: Error on get value on redis`, {
xid, product, eCode: err.code, eMessage: err.message,
});
resolve(null);
return;
}
if (!reply) {
resolve();
return;
}
resolve(Number(reply));
});
});
exports.get = get;
const isLimited = (product, xid) => new Promise((resolve) => {
const supplier = config.handler_name;
const val = JSON.stringify({ supplier, product });
redisClient.sismember(LIMITED_SET_NAME, val, (err, reply) => {
if (err) {
logger.warn(`20D042AC ${MODULE_NAME}: Error on checking if on managed set`, {
xid, product, eCode: err.code, eMessage: err.message,
});
resolve(null);
return;
}
resolve(!!reply);
});
});
exports.isLimited = isLimited;
const addToLimited = (product, xid) => new Promise((resolve) => {
if (!(product || '').trim()) {
resolve();
return;
}
const supplier = config.handler_name;
const val = JSON.stringify({ supplier, product: product.trim().toUpperCase() });
redisClient.sadd(LIMITED_SET_NAME, val, (err, reply) => {
if (err) {
logger.warn(`E5AA0994 ${MODULE_NAME}: Error on add to managed set`, {
xid, product, eCode: err.code, eMessage: err.message,
});
resolve();
return;
}
resolve(reply);
});
});
exports.addToLimited = addToLimited;
const removeFromLimited = (product, xid) => new Promise((resolve) => {
const supplier = config.handler_name;
const val = JSON.stringify({ supplier, product });
redisClient.srem(LIMITED_SET_NAME, val, (err, reply) => {
if (err) {
logger.warn(`DD5CBDF2 ${MODULE_NAME}: Error on remove from managed set`, {
xid, product, eCode: err.code, eMessage: err.message,
});
resolve();
return;
}
resolve(reply);
});
});
exports.removeFromLimited = removeFromLimited;
const setLimit = async (product, newValue, xid) => {
await addToLimited(product, xid);
await set(product, Number(newValue));
};
exports.setLimit = setLimit;
const decrement = (product, xid) => new Promise((resolve) => {
const keyword = composeKeyword(product);
redisClient.decr(keyword, (err, reply) => {
if (err) {
logger.warn(`BA176849 ${MODULE_NAME}: Error on decrementing value`, {
xid, product, eCode: err.code, eMessage: err.message,
});
resolve(null);
return;
}
redisClient.expire(keyword, DEFAULT_TTL);
resolve(reply);
});
});
exports.decrement = decrement;
const increment = (product, xid) => new Promise((resolve) => {
const keyword = composeKeyword(product);
redisClient.incr(keyword, (err, reply) => {
if (err) {
logger.warn(`8DA99C28 ${MODULE_NAME}: Error on incrementing`, {
xid, product, eCode: err.code, eMessage: err.message,
});
redisClient.expire(keyword, DEFAULT_TTL);
resolve(null);
return;
}
resolve(reply);
});
});
const incrementBy = (product, val, xid) => new Promise((resolve) => {
const keyword = composeKeyword(product);
redisClient.incrby(keyword, Math.trunc(Number(val)), (err, reply) => {
if (err) {
logger.warn(`83038699 ${MODULE_NAME}: Error on incrementing by`, {
xid, product, eCode: err.code, eMessage: err.message,
});
redisClient.expire(keyword, DEFAULT_TTL);
resolve(null);
return;
}
resolve(reply);
});
});
exports.incrementBy = incrementBy;
const dispose = async (product, xid) => {
if (!await isLimited(product, xid)) {
return true;
}
const remaining = await decrement(product, xid);
if (!remaining && remaining !== 0) {
return true;
}
if (remaining < 0) {
await set(product, 0, xid);
return 0;
}
return remaining;
};
exports.dispose = dispose;
const putBack = async (product, xid) => {
if (!await isLimited(product, xid)) {
return;
}
await increment(product, xid);
};
exports.putBack = putBack;
const limitedList = (xid) => new Promise((resolve, reject) => {
redisClient.smembers(LIMITED_SET_NAME, (err, reply) => {
if (err) {
const newError = new Error('Error getting limited list');
newError.code = 'BA176849';
logger.warn(`BA176849 ${MODULE_NAME}: ${newError.message}`, {
xid, eCode: err.code, eMessage: err.message, newErrCode: newError.code,
});
reject(newError);
return;
}
const result = (reply || [])
.map((item) => JSON.parse(item));
resolve(
orderBy(
result,
[(item) => item.supplier, (item) => item.product],
['asc', 'asc'],
),
);
});
});
exports.limitedList = limitedList;