import { describe, it } from 'node:test';
import assert from 'node:assert/strict';

import {
    dectNetworkName,
    generateDectAccessCode,
    translateCreateDectError,
} from '../src/webex/dect.js';

// AE's access code convention: 4-digit stores use their own digits; anything
// shorter prefixes '8' and pads the rest to 3. Ports collabFinder's rule
// verbatim so cross-project behaviour stays in sync.
describe('generateDectAccessCode', () => {
    it('uses the store number verbatim for 4-digit stores', () => {
        assert.equal(generateDectAccessCode(1234), '1234');
        assert.equal(generateDectAccessCode('0499'), '0499');
    });

    it('truncates 5+ digit stores to the first 4', () => {
        assert.equal(generateDectAccessCode(12345), '1234');
    });

    it("prefixes '8' and pads for shorter stores", () => {
        assert.equal(generateDectAccessCode(347), '8347');
        assert.equal(generateDectAccessCode(67), '8067');
        assert.equal(generateDectAccessCode(1), '8001');
    });

    it('strips non-digit characters from the input', () => {
        assert.equal(generateDectAccessCode('4-9-9'), '8499');
        assert.equal(generateDectAccessCode('Store 1234'), '1234');
    });
});

describe('dectNetworkName', () => {
    it('produces the canonical "Store XXXX" name (4-digit padding)', () => {
        assert.equal(dectNetworkName(499), 'Store 0499');
        assert.equal(dectNetworkName(1), 'Store 0001');
        assert.equal(dectNetworkName(1234), 'Store 1234');
        assert.equal(dectNetworkName('67'), 'Store 0067');
    });
});

// Regression: when /provisionDect's location lookup was broken (see
// findDectNetworkInLocation notes) the create card would appear even
// though a DECT network already existed, and the resulting POST
// 409'd with a deeply-nested Webex error blob. The translator
// surfaces the actionable "re-run /provisionDect" instruction.
describe('translateCreateDectError', () => {
    function fakeErr(status, body) {
        const err = new Error(`HTTP ${status} for POST /whatever\n${body}`);
        err.status = status;
        err.body = body;
        return err;
    }

    const CONFLICT_BODY =
        '{"error":[{"key":"409","message":[{"description":"POST failed: HTTP/1.1 409 Conflict (url = https://cpapi-a.wbx2.com/api/v1/customers/DUMMY/locations/DUMMY/dects, request/response TrackingId = ROUTERGW_xxx, errorCode = \'27453\', error = \'[Error 27453] Default access code is in use by another DECT network: 7311\')","code":"27453"}]}],"trackingId":"ROUTERGW_xxx"}';

    it('rewrites Webex error 27453 into an actionable message', () => {
        const raw = fakeErr(409, CONFLICT_BODY);
        const translated = translateCreateDectError(raw, 7311);
        assert.notEqual(translated, raw, 'should be a new Error instance');
        assert.match(translated.message, /already exists/i);
        assert.match(translated.message, /\/provisionDect 7311/);
        assert.match(translated.message, /Store 7311/);
        assert.equal(translated.status, 409);
        assert.equal(translated.cause, raw);
    });

    it('pads short store numbers in the error text (matches dectNetworkName convention)', () => {
        const raw = fakeErr(409, CONFLICT_BODY);
        const translated = translateCreateDectError(raw, 499);
        assert.match(translated.message, /Store 0499/);
    });

    it('returns unrelated errors unchanged', () => {
        const raw = fakeErr(400, '{"message":"something else","errorCode":9999}');
        const result = translateCreateDectError(raw, 7311);
        assert.equal(result, raw);
        assert.doesNotMatch(result.message, /already exists/i);
    });
});