@rr0/cms/dist/time/text/TimeTextBuilder.js

RR0 Content Management System (CMS)

export class TimeTextBuilder {
    /**
     * @param options The default date format.to use.
     */
    constructor(options) {
        this.options = options;
    }
    /**
     * Build a textual representation of context's time, according to context's locale.
     */
    build(context, options = this.options) {
        const time = context.time;
        const printOptions = {};
        const date = new Date(undefined, undefined, undefined);
        const year = time.getYear();
        if (year) {
            date.setFullYear(year);
            printOptions.year = options.year;
        }
        const month = time.getMonth();
        if (month) {
            date.setDate(1); // Avoid increasing month if today is > 30
            date.setMonth(month - 1);
            printOptions.month = options.month;
        }
        const dayOfMonth = time.getDayOfMonth();
        if (dayOfMonth) {
            date.setDate(dayOfMonth);
            printOptions.day = options.day;
            printOptions.weekday = options.weekday;
        }
        const hour = time.getHour();
        if (hour) {
            date.setHours(hour);
            printOptions.hour = options.hour;
        }
        const minutes = time.getMinutes();
        if (minutes) {
            date.setMinutes(minutes);
            printOptions.minute = options.minute;
        }
        const timeZone = time.getTimeZone();
        if (timeZone) {
            // printOptions.timeZoneName = context.time.options.timeZoneName
        }
        let text;
        if (Number.isNaN(date.getTime())) {
            text = "";
            // TODO: Handle partial date (month only, etc.)
        }
        else { // Valid date?
            const locale = context.locale;
            if (year < 0) {
                date.setFullYear(date.getFullYear() + 1);
                printOptions.era = "narrow";
            }
            text = date.toLocaleString(locale, printOptions);
        }
        return text;
    }
}