/** @file
 * @author Edouard DUPIN
 * @copyright 2018, Edouard DUPIN, all right reserved
 * @license PROPRIETARY (see license file)
 */

import { Injectable } from '@angular/core';
import { environment } from 'environments/environment';

@Injectable()
export class SSOService {
	
	constructor() {
		console.log('Start SSOService');
	}
	utf8_to_b64( str:string ): string {
		// remove unneeded "=" padding
		return window.btoa(unescape(encodeURIComponent( str ))).replace("=", "");
	}
	  
	b64_to_utf8( str:string ): string {
		return decodeURIComponent(escape(window.atob( str )));
	}
	/**
	 * Request SSO connection
	 */
	hashLocalData(data?: string): string {
		if (data != undefined) {
			return this.utf8_to_b64(data);
		}
		let pathName = window.location.pathname;
		console.log("start Path-name: '" + pathName  + "'");
		console.log("check with:      '" + environment.applName + "/sso/" + "'");
		if (pathName.startsWith("/sso/") || pathName.startsWith(environment.applName + "/sso/")) {
			return this.utf8_to_b64('home');
		}
		if (pathName.startsWith(environment.applName + "/sso/")) {
			pathName = pathName.substring(environment.applName.length + 1);
		}
		return this.utf8_to_b64(pathName);
	}
	/**
	 * Request SSO connection
	 */
	unHashLocalData(data: string): string {
		return this.b64_to_utf8(data);
	}
	/**
	 * Request SSO connection
	 */
	requestSignIn(name?: string): void {
		window.location.href = environment.ssoSignIn + this.hashLocalData(name);
	}
	/**
	 * Request SSO Disconnect
	 */
	requestSignOut(name?: string): void {
		if (name === undefined) {
			name = 'home';
		}
		window.location.href = environment.ssoSignOut + this.hashLocalData(name);
	}
	/**
	 * Request SSO signUp
	 */
	requestSignUp(name?: string): void {
		window.location.href = environment.ssoSignUp + this.hashLocalData(name);
	}
}