funky-framadate-front/src/app/config/PollUtilities.ts

import { HttpHeaders } from '@angular/common/http';
import { PollConfig } from './PollConfig';
import { Injectable } from '@angular/core';

@Injectable({
	providedIn: 'root',
})
export class PollUtilities {
	// utils functions
	/**
	 * generate unique id to have a default url for future poll
	 */
	makeUuid() {
		return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) {
			const r = (Math.random() * 16) | 0,
				v = c == 'x' ? r : (r & 0x3) | 0x8;
			return v.toString(16);
		});
	}

	/**
	 * make a uniq slug for the current poll creation
	 * @param str
	 */
	makeSlug(config: PollConfig) {
		let str = '';
		str =
			config.creationDate.getFullYear() +
			'_' +
			(config.creationDate.getMonth() + 1) +
			'_' +
			config.creationDate.getDate() +
			'_' +
			config.myName +
			'_' +
			config.title;
		str = str.replace(/^\s+|\s+$/g, ''); // trim
		str = str.toLowerCase();

		// remove accents, swap ñ for n, etc
		const from = 'àáäâèéëêìíïîòóöôùúüûñç·/_,:;';
		const to = 'aaaaeeeeiiiioooouuuunc------';
		for (let i = 0, l = from.length; i < l; i++) {
			str = str.replace(new RegExp(from.charAt(i), 'g'), to.charAt(i));
		}

		str = str
			.replace(/[^a-z0-9 -]/g, '') // remove invalid chars
			.replace(/\s+/g, '-') // collapse whitespace and replace by -
			.replace(/-+/g, '-'); // collapse dashes

		return str;
	}

	/**
	 * prepare headers like the charset and json type for any call to the backend
	 * @param bodyContent
	 */
	makeHeaders(bodyContent?: any) {
		const headerDict = {
			Charset: 'UTF-8',
			'Content-Type': 'application/json',
			Accept: 'application/json',
			'Access-Control-Allow-Methods': 'GET, POST, PUT, DELETE, OPTIONS',
			'Access-Control-Allow-Origin': '*',
		};

		const requestOptions = {
			headers: new HttpHeaders(headerDict),
			body: bodyContent,
		};

		return requestOptions;
	}
}