import { test } from "node:test";
import assert from "node:assert/strict";
import { formatLogLine } from "../../src/logging/format.ts";

const TIMESTAMP = "2026-10-08 21:29:40.426";
const CREDENTIALS = "RFVNTVlfQ0xJRU5UX0lEOkRVTU1ZX0NMSUVOVF9TRUNSRVQ="; // base64 of the dummy "DUMMY_CLIENT_ID:DUMMY_CLIENT_SECRET"

// Characterization: what the console line looks like today.

test("renders timestamp, level and message, with a trailing space when there are no other fields", () => {
	assert.equal(
		formatLogLine({ timestamp: TIMESTAMP, level: "info", message: "app:i:paypal-api: hello" }),
		"2026-10-08 21:29:40.426Z info: app:i:paypal-api: hello "
	);
});

test("appends the other fields as JSON indented by two spaces", () => {
	assert.equal(
		formatLogLine({
			timestamp: TIMESTAMP,
			level: "debug",
			message: "app:d:order-service: Calculating totals",
			productsTotal: 17.9,
			deliveryPrice: 4.95
		}),
		'2026-10-08 21:29:40.426Z debug: app:d:order-service: Calculating totals {\n  "productsTotal": 17.9,\n  "deliveryPrice": 4.95\n}'
	);
});

test("ignores the symbol keys winston adds", () => {
	const info = { timestamp: TIMESTAMP, level: "info", message: "hello", [Symbol.for("level")]: "info", [Symbol.for("splat")]: [] };

	assert.equal(formatLogLine(info), "2026-10-08 21:29:40.426Z info: hello ");
});

// Known defects: these assert the correct behaviour and fail today, which the todo marks as expected.

test(
	"does not throw on a circular reference",
	{ todo: "JSON.stringify throws on a circular reference — https://git.librete.ch/libretech/mp/issues/67" },
	() => {
		const request: Record<string, unknown> = { method: "POST", path: "/v1/oauth2/token" };
		request.self = request;

		assert.doesNotThrow(() => formatLogLine({ timestamp: TIMESTAMP, level: "error", message: "app:e:paypal-api", request }));
	}
);

test(
	"does not write the Authorization header of an axios-like error into the line",
	{ todo: "the PayPal client credentials are logged — https://git.librete.ch/libretech/mp/issues/67" },
	() => {
		const error = Object.assign(new Error("getaddrinfo EAI_AGAIN api-m.paypal.com"), {
			name: "AxiosError",
			code: "EAI_AGAIN",
			config: { method: "post", url: "https://api-m.paypal.com/v1/oauth2/token", headers: { Authorization: `Basic ${CREDENTIALS}` } }
		});
		// What strapi.log.error(error) hands this formatter: Strapi's logErrors format spreads the error and appends its stack.
		const line = formatLogLine({ ...error, message: `${error.message}\n${error.stack}`, level: "error", timestamp: TIMESTAMP });

		assert.ok(!line.includes(CREDENTIALS), line);
	}
);

test(
	"renders an Error with its message instead of {}",
	{ todo: "an Error is rendered as {} — https://git.librete.ch/libretech/mp/issues/67" },
	() => {
		const error = new Error("getaddrinfo EAI_AGAIN api-m.paypal.com");
		// strapi.log.error("…", { error }), as in the order controller's capturePayment
		const line = formatLogLine({
			timestamp: TIMESTAMP,
			level: "error",
			message: "app:e:order-controller: Error capturing payment for order x",
			error
		});

		assert.ok(line.includes("getaddrinfo EAI_AGAIN api-m.paypal.com"), line);
	}
);