import { Base } from './base';
import { SessionInformation } from './types/session';
import { SessionModel } from './models/session';

export class Session extends Base {
	private sessionApi = this.config.get('sessionApi');
	private membershipApi = this.config.get('membershipApi');

	private buildCreateSessionBody(userId: string): Object {
		return {
			creationTime: new Date().getTime(),
			mfa: 'false',
			rememberMe: 'true',
			uuid: userId,
		};
	}

	private async createSessionTokenByPath(userId: string, path: string): Promise<String> {
		const url = `${this.sessionApi}${path}`;
		const sessionApiKey = this.config.get('sessionApiKey');
		const additionalHeaders = {
			'FT-Api-Key': sessionApiKey,
			'Accept': 'text/plain',
		};
		const body = this.buildCreateSessionBody(userId);

		return this.requestPost({ key: sessionApiKey, url, body, additionalHeaders });
	}

	/**
	 * Creates a session token for a specific user.
	 * Docs: https://sessionapi-test.memb.ft.com/swagger-ui/#/default/POST_membership-sessions
	 * @param userId User's UUID.
	 * @returns The session token.
	 */

	public async createSessionToken(userId: string): Promise<String> {
		return this.createSessionTokenByPath(userId, '/membership/sessions');
	}

	/**
	 * Creates a secure session token for a specific user
	 * Docs: https://sessionapi-test.memb.ft.com/swagger-ui/#/default/POST_membership-sessions-s
	 * @param userId User's UUID.
	 * @returns The secure session token.
	 */

	public async createSecureSessionToken(userId: string): Promise<String> {
		return this.createSessionTokenByPath(userId, '/membership/sessions/s');
	}

	/**
	 * Fetches session information for a specific user.
	 * Docs: https://session-api.memb.ft.com/swagger-ui/#/default/GET_membership-sessions-s-sessionId
	 * @param sessionId ID of a secure session.
	 * @returns The session token.
	 */

	public async fetchSessionInfo(sessionId: string): Promise<SessionModel> {
		const url = `${this.membershipApi}/sessions/s/${sessionId}`;
		const sessionApiKey = this.config.get('sessionApiKey');
		const sessionInfo = await this.requestGet({ url, key: sessionApiKey });

		return new SessionModel(sessionInfo);
	}
}