import { IPermissionVoter } from '../definitions/security.interfaces';

export class PermissionCheckerService {
    /**
     * @type {IPermissionVoter[]}
     */
    voters: Array<IPermissionVoter> = [];

    /**
     * @param {string} permission
     * @param resource
     * @returns {boolean}
     */
    public isGranted = (permission: string, resource: any): boolean => {
        let positiveCheck = 0;
        let negativeCheck = 0;
        console.log(this.voters);
        this.voters.forEach((checker: IPermissionVoter) => {
            if (true === checker.supports(permission, resource)) {
                true === checker.isGranted(permission, resource) ? positiveCheck++ : negativeCheck++;
            }
        });

        return negativeCheck === 0 && positiveCheck > 0;
    }
}