// ***********************************************
// This File is for Custom Cypress commands.
// See docs at https://docs.cypress.io/api/cypress-api/custom-commands
// ***********************************************

import { AuthTokenInfo, TOKENITEM } from 'src/app/core/auth/models/auth-token-info.model';
import { TEST_REST_BASE_URL } from '.';

// Declare Cypress namespace to help with Intellisense & code completion in IDEs
// ALL custom commands MUST be listed here for code completion to work
// tslint:disable-next-line:no-namespace
declare global {
    namespace Cypress {
        interface Chainable<Subject = any> {
            /**
             * Login to backend before accessing the next page. Ensures that the next
             * call to "cy.visit()" will be authenticated as this user.
             * @param email email to login as
             * @param password password to login as
             */
            login(email: string, password: string): typeof login;
        }
    }
}

/**
 * Login user via REST API directly, and pass authentication token to UI via
 * the UI's dsAuthInfo cookie.
 * @param email email to login as
 * @param password password to login as
 */
function login(email: string, password: string): void {
    // To login via REST, first we have to do a GET to obtain a valid CSRF token
    cy.request( TEST_REST_BASE_URL + '/server/api/authn/status' )
    .then((response) => {
        // We should receive a CSRF token returned in a response header
        expect(response.headers).to.have.property('dspace-xsrf-token');
        const csrfToken = response.headers['dspace-xsrf-token'];

        // Now, send login POST request including that CSRF token
        cy.request({
            method: 'POST',
            url: TEST_REST_BASE_URL + '/server/api/authn/login',
            headers: { 'X-XSRF-TOKEN' : csrfToken},
            form: true, // indicates the body should be form urlencoded
            body: { user: email, password: password }
        }).then((resp) => {
            // We expect a successful login
            expect(resp.status).to.eq(200);
            // We expect to have a valid authorization header returned (with our auth token)
            expect(resp.headers).to.have.property('authorization');

            // Initialize our AuthTokenInfo object from the authorization header.
            const authheader = resp.headers.authorization as string;
            const authinfo: AuthTokenInfo = new AuthTokenInfo(authheader);

            // Save our AuthTokenInfo object to our dsAuthInfo UI cookie
            // This ensures the UI will recognize we are logged in on next "visit()"
            cy.setCookie(TOKENITEM, JSON.stringify(authinfo));
        });
    });
}
// Add as a Cypress command (i.e. assign to 'cy.login')
Cypress.Commands.add('login', login);