let crypto = globalThis.crypto;
let { subtle } = crypto;

import { IbGib_V1 } from 'ts-gib/dist/V1/types.mjs';
/**
 * Test helper functions.
 */

import * as h from './helper.mjs';


describe(`foo clone`, () => {

    it(`should foo Clone yo (testing node/browser isomorphic packages)`, () => {
        let obj = 1;
        let clone = h.fooClone(obj);
        expect(clone).withContext('clone foo yo').toEqual(obj);
        // expect(1).withContext('expected fail test case').toBe(2);
    });

    it(`should foo getibAndGib yo (testing node/browser isomorphic packages)`, () => {
        let result = h.fooGetIbAndGib();
        expect(result.ib).withContext('ib').toEqual('ib');
    });

    it(`should foo factory yo (testing node/browser isomorphic packages)`, async () => {
        let result = await h.fooFactory();
        expect(result).withContext('result').toBeTruthy();
        expect(result.ib).withContext('result.ib').toBeTruthy();
    });

});

async function hash({
    s,
}: {
    s: string,
}): Promise<string> {
    if (!s) { return ''; }
    let algorithm = 'SHA-256';

    try {
        const msgUint8 = new TextEncoder().encode(s);
        const buffer = await subtle.digest(algorithm, msgUint8);
        const asArray = Array.from(new Uint8Array(buffer));
        return asArray.map(b => b.toString(16).padStart(2, '0')).join('');
    } catch (e) {
        console.error(e.message ?? e);
        throw e;
    }
}

describe(`non-ts-gib isomorphic crypto hashing`, () => {

    it(`should digest simple string consistently using crypto.subtle directly `, async () => {
        let h = await hash({ s: '42' });
        expect(h).withContext('42').toBe('73475cb40a568e8da8a045ced110137e159f890ac4da883b6b17dc651b3a8049');
    });
    it(`should digest simple stringified ibgib consistently using crypto.subtle directly `, async () => {
        let ibgib: IbGib_V1 = { ib: 'ib', gib: 'gib' };
        let h = await hash({ s: JSON.stringify(ibgib) }); // doesn't use ts-gib but consistent stringifying json is important
        expect(h).withContext('ib^gib').toBe('cbad0694a257358c044611ea1fa88ace71a01a9b8409d2354d0387d8043f7671');
    });
});