@benshi.ai/js-sdk/src/utils.ts

Benshi SDK

const offsetToISO8601 = offset => {

    const zeroize = number => number < 10 ? `0${number}` : `${number}`

    const sign = offset > 0 ? '-' : '+'
    const hours = zeroize(Math.floor(Math.abs(offset) / 60))
    const minutes = zeroize(Math.abs(offset) % 60)

    return `${sign}${hours}${minutes}`
}

const toISOLocal = (d: Date) => {
    // format date as: 2022-07-04T16:50:28.334+02:00
    const z = n => ('0' + n).slice(-2);
    const zz = n => ('00' + n).slice(-3);
    let off = d.getTimezoneOffset();
    const sign = off > 0 ? '-' : '+';
    off = Math.abs(off);

    return d.getFullYear() + '-'
        + z(d.getMonth() + 1) + '-' +
        z(d.getDate()) + 'T' +
        z(d.getHours()) + ':' +
        z(d.getMinutes()) + ':' +
        z(d.getSeconds()) + '.' +
        zz(d.getMilliseconds()) +
        sign + z(off / 60 | 0) + ':' + z(off % 60);
}

/**
 * Checks whether the given date matches the format
 * 
 * 1937-01-01T12:00:27.87+00:20
 * @param timestamp 
 */
const isISOLocal = (timestamp: string): boolean => {
    const referenceDate = "1937-01-01T12:00:27.87+00:20"

    // millis may have two or three digits
    const correctLength = timestamp.length === referenceDate.length || timestamp.length === referenceDate.length + 1 
    const isString = typeof timestamp === 'string'
    const isValidGeneralDate = !isNaN(new Date(timestamp).getTime())

    return correctLength && isString && isValidGeneralDate   
}

const hasRepeatedIds = (collection: any[]) => {
    const ids = {}
    for (const { id } of collection) {
        if (ids[id]) {
            return true
        }

        ids[id] = true
    }

    return false
}

const checkObjectFieldEmptyiness = (obj: any, fieldsToCheck: string[]) => {
    for (const field of fieldsToCheck) {
        if ((typeof obj[field] === 'string') && (obj[field].trim().length === 0)) {
            throw new Error(`non empty ${field} are mandatory`)
        }
    }
}

export {
    checkObjectFieldEmptyiness,
    hasRepeatedIds,
    isISOLocal,
    offsetToISO8601,
    toISOLocal
}