NodeBB/NodeBB

'use strict';

module.exports = function (module) {
    const helpers = require('./helpers');

    module.listPrepend = async function (key, value) {
        if (!key) {
            return;
        }
        await module.client.lpush(key, value);
    };

    module.listAppend = async function (key, value) {
        if (!key) {
            return;
        }
        await module.client.rpush(key, value);
    };

    module.listRemoveLast = async function (key) {
        if (!key) {
            return;
        }
        return await module.client.rpop(key);
    };

    module.listRemoveAll = async function (key, value) {
        if (!key) {
            return;
        }
        if (Array.isArray(value)) {
            const batch = module.client.batch();
            value.forEach(value => batch.lrem(key, 0, value));
            await helpers.execBatch(batch);
        } else {
            await module.client.lrem(key, 0, value);
        }
    };

    module.listTrim = async function (key, start, stop) {
        if (!key) {
            return;
        }
        await module.client.ltrim(key, start, stop);
    };

    module.getListRange = async function (key, start, stop) {
        if (!key) {
            return;
        }
        return await module.client.lrange(key, start, stop);
    };

    module.listLength = async function (key) {
        return await module.client.llen(key);
    };
};