import { Injectable } from '@angular/core';
import { HttpClient, HttpHeaders } from '@angular/common/http';
import { catchError, lastValueFrom } from 'rxjs';
import { throwError as observableThrowError } from 'rxjs/internal/observable/throwError';

@Injectable({
	providedIn: 'root'
})
export class RestService {
	private baseHref: string;

	constructor(private http: HttpClient) {
		this.baseHref = '/' + (!!window.location.pathname.split('/')[1] ? window.location.pathname.split('/')[1] + '/' : '');
	}
	async getToken(sessionId: string, openviduServerUrl?: string, openviduSecret?: string): Promise<string> {
		// if (!!openviduServerUrl && !!openviduSecret) {
		// 	const _sessionId = await this.createSession(sessionId, openviduServerUrl, openviduSecret);
		// 	return await this.createToken(_sessionId, openviduServerUrl, openviduSecret);
		// }
		try {
			return lastValueFrom(this.http.post<any>(this.baseHref + 'call', { sessionId }));
		} catch (error) {
			if (error.status === 404) {
				throw { status: error.status, message: 'Cannot connect with backend. ' + error.url + ' not found' };
			}
			throw error;
		}
	}

	// private createSession(sessionId: string, openviduServerUrl: string, openviduSecret: string): Promise<string> {
	// 	return new Promise((resolve, reject) => {
	// 		const body = JSON.stringify({ customSessionId: sessionId });
	// 		const options = {
	// 			headers: new HttpHeaders({
	// 				Authorization: 'Basic ' + btoa('OPENVIDUAPP:' + openviduSecret),
	// 				'Content-Type': 'application/json'
	// 			})
	// 		};
	// 		return this.http
	// 			.post<any>(openviduServerUrl + '/openvidu/api/sessions', body, options)
	// 			.pipe(
	// 				catchError((error) => {
	// 					if (error.status === 409) {
	// 						resolve(sessionId);
	// 					}
	// 					if (error.statusText === 'Unknown Error') {
	// 						reject({ status: 401, message: 'ERR_CERT_AUTHORITY_INVALID' });
	// 					}
	// 					return observableThrowError(error);
	// 				})
	// 			)
	// 			.subscribe((response) => {
	// 				resolve(response.id);
	// 			});
	// 	});
	// }

	// private createToken(sessionId: string, openviduServerUrl: string, openviduSecret: string): Promise<string> {
	// 	return new Promise((resolve, reject) => {
	// 		const body = JSON.stringify({});
	// 		const options = {
	// 			headers: new HttpHeaders({
	// 				Authorization: 'Basic ' + btoa('OPENVIDUAPP:' + openviduSecret),
	// 				'Content-Type': 'application/json'
	// 			})
	// 		};
	// 		return this.http
	// 			.post<any>(openviduServerUrl + '/openvidu/api/sessions/' + sessionId + '/connection', body, options)
	// 			.pipe(
	// 				catchError((error) => {
	// 					reject(error);
	// 					return observableThrowError(error);
	// 				})
	// 			)
	// 			.subscribe((response) => {
	// 				resolve(response.token);
	// 			});
	// 	});
	// }
}