import { Pipe, PipeTransform } from '@angular/core';

// enums
import { eStringPlaceholder } from '../enums';

@Pipe({
    name: 'nameInitials',
    standalone: true,
})
export class NameInitialsPipe implements PipeTransform {
    constructor() {}

    transform(fullName: string | number | undefined): string {
        const fullname = fullName?.toString();
        if (!fullname) return eStringPlaceholder.EMPTY;

        const initials: string = fullname
            .split(eStringPlaceholder.WHITESPACE)
            .map((x) => x.charAt(0))
            .join(eStringPlaceholder.EMPTY)
            .substr(0, 2)
            .toUpperCase();

        return initials;
    }
}