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

import { classifyNumberAssignment, translateAddNumberError } from '../src/webex/locations.js';

const LOC = { id: 'LOC-STORE-7311', name: 'Store 7311' };

// The exact JSON Webex returns when a freshly-purchased number is
// still being provisioned by the carrier. Kept verbatim from a real
// error so this test breaks loudly if Webex ever changes the payload
// shape (and we can update our detection to match).
const PENDING_ORDERS_BODY =
    '[{"errors":[{"errorType":"VERIFICATION","errorCode":"ERR.V.TRM.TMN60027","errorMessage":"Number has pending orders.","errorTitle":"NUMBER_HAS_PENDING_ORDERS"}]}]';

function fakeHttpError(status, body) {
    const err = new Error(`HTTP ${status} for POST /whatever\n${body}`);
    err.status = status;
    err.body = body;
    return err;
}

describe('translateAddNumberError', () => {
    it('rewrites NUMBER_HAS_PENDING_ORDERS into an actionable operator message', () => {
        const raw = fakeHttpError(400, PENDING_ORDERS_BODY);
        const translated = translateAddNumberError(raw, '+14045551212');
        assert.notEqual(translated, raw, 'should be a new Error instance');
        assert.match(translated.message, /pending order/i);
        assert.match(translated.message, /re-run \/finalizeStore/);
        assert.match(translated.message, /\+14045551212/);
        assert.equal(translated.status, 400);
        assert.equal(translated.cause, raw, 'raw error should be preserved as .cause');
    });

    it('returns unrelated errors unchanged (same instance)', () => {
        const raw = fakeHttpError(400, '{"message":"Nope","errorCode":9999}');
        const result = translateAddNumberError(raw, '+14045551212');
        assert.equal(result, raw);
        assert.doesNotMatch(result.message, /pending order/i);
    });

    it('tolerates errors with no body property', () => {
        const raw = new Error('ENOTFOUND webexapis.com');
        assert.equal(translateAddNumberError(raw, '+14045551212'), raw);
    });
});

// classifyNumberAssignment decides what to do about the number's
// current state in the org. The whole point of extracting it is so
// this branching is unit-testable without any HTTP; the four kinds
// here map 1:1 to the four operator-visible outcomes.
describe('classifyNumberAssignment', () => {
    // Regression: the endpoint that used to run in this step
    // (POST /telephony/config/locations/{id}/numbers) triggers a new
    // PSTN order — which is exactly wrong for AE's manual-order
    // workflow. The "already-here" path is the common case now and
    // must be a clean no-op.
    it("returns 'already-here' when the number is ACTIVE in this location", () => {
        const existing = {
            phoneNumber: '+14045551212',
            state: 'ACTIVE',
            location: { id: LOC.id, name: LOC.name },
        };
        const out = classifyNumberAssignment(existing, '+14045551212', LOC);
        assert.equal(out.kind, 'already-here');
        assert.equal(out.existing, existing);
    });

    it("returns 'pending' when the number is in the org but not ACTIVE yet", () => {
        const existing = {
            phoneNumber: '+14045551212',
            state: 'PENDING',
            location: { id: LOC.id, name: LOC.name },
        };
        const out = classifyNumberAssignment(existing, '+14045551212', LOC);
        assert.equal(out.kind, 'pending');
        assert.match(out.message, /still processing/i);
        assert.match(out.message, /re-run \/finalizeStore/);
    });

    it("returns 'wrong-location' when the number is ACTIVE in a different location", () => {
        const existing = {
            phoneNumber: '+14045551212',
            state: 'ACTIVE',
            location: { id: 'LOC-OTHER', name: 'Store 0499' },
        };
        const out = classifyNumberAssignment(existing, '+14045551212', LOC);
        assert.equal(out.kind, 'wrong-location');
        assert.match(out.message, /Store 0499/); // current location shown
        assert.match(out.message, /Store 7311/); // target location shown
        assert.match(out.message, /Move it in Control Hub/);
    });

    it('treats a missing location on the record as wrong-location (unassigned)', () => {
        const existing = { phoneNumber: '+14045551212', state: 'ACTIVE' };
        const out = classifyNumberAssignment(existing, '+14045551212', LOC);
        assert.equal(out.kind, 'wrong-location');
        assert.match(out.message, /\(unassigned\)/);
    });

    it("returns 'not-in-org' when the number isn't in the inventory at all", () => {
        const out = classifyNumberAssignment(null, '+14045551212', LOC);
        assert.equal(out.kind, 'not-in-org');
        assert.match(out.message, /Order it in Control Hub/);
        assert.match(out.message, /Store 7311/);
    });
});