Run example

npm run import -- "update regular cache"

update regular cache

function sortAlphaNumeric(a, b) {
    // convert to strings and force lowercase
    a = typeof a === 'string'
        ? a.toLowerCase()
        : a.toString()
    b = typeof b === 'string'
        ? b.toLowerCase()
        : b.toString()

    return a.localeCompare(b)
}

function cleanCache(cache, allIds) {
    // clean up ids that exist in the index but not in memory
    var extra = cache.filter(e => !allIds.includes(e[1]))
    extra.forEach(e => cache.splice(cache.indexOf(e), 1))
    
    cache.sort((a, b) => {
        return sortAlphaNumeric(a[1], b[1])
    })
}

function updateCache(updates, cache, allIds) {
    var cacheIds = cache.map(e => e[1])
    
    // update with results from search
    updates.forEach(e => {
        var i = cacheIds.indexOf(e[1])
        if(i === -1) {
            cache.push(e)
            cacheIds.push(e[1])
        } else {
            cache.splice(i, 1, e)
        }
    })
    
    cleanCache(cache, allIds)
    
    return cache
}

module.exports = {
    updateCache,
    cleanCache,
    sortAlphaNumeric,
}