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

// What axios throws when PayPal cannot be reached: the request config with its headers.
const networkError = () =>
	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}` } }
	});

test("keeps the name, message and status code of a PayPal SDK error, not its request, headers or body", () => {
	// @apimatic/core's ApiError, which the SDK's CustomError and OAuthProviderError extend
	const error = Object.assign(new Error("OAuth 2 Authorization endpoint returned error."), {
		request: { method: "POST", url: "https://api-m.paypal.com/v1/oauth2/token", headers: { Authorization: `Basic ${CREDENTIALS}` } },
		statusCode: 401,
		headers: { "paypal-debug-id": "f1a2b3c4d5e6f" },
		body: '{"error":"invalid_client","error_description":"Client Authentication failed"}'
	});

	assert.deepEqual(describeError(error), { name: "Error", message: "OAuth 2 Authorization endpoint returned error.", statusCode: 401 });
});

test("keeps the name and message of an axios network error, not its config", () => {
	assert.deepEqual(describeError(networkError()), { name: "AxiosError", message: "getaddrinfo EAI_AGAIN api-m.paypal.com", statusCode: undefined });
});

test("keeps the first line of a message: the SDK's response validation error quotes the response after it", () => {
	const error = new Error(
		'The response did not match the response schema.\n\n> Issue #1\n\nExpected value to be of type \'string\'.\n\nGiven value: {"email_address":"erika.buyer@example.org"}'
	);

	assert.deepEqual(describeError(error), { name: "Error", message: "The response did not match the response schema.", statusCode: undefined });
});

test("cuts a long message", () => {
	assert.equal(describeError(new Error("x".repeat(500))).message, `${"x".repeat(200)}…`);
});

test("describes a thrown value that is not an error by its type alone", () => {
	assert.deepEqual(describeError("/result/error"), { name: "string", message: "", statusCode: undefined });
	assert.deepEqual(describeError(undefined), { name: "undefined", message: "", statusCode: undefined });
	assert.deepEqual(describeError(null), { name: "object", message: "", statusCode: undefined });
	assert.deepEqual(describeError({ statusCode: "500" }), { name: "object", message: "", statusCode: undefined });
});

test("the log line of the description holds no credentials", () => {
	// Compare log-format.test.ts: the line of the error object itself holds them, a known defect of the formatter.
	const line = formatLogLine({
		timestamp: TIMESTAMP,
		level: "error",
		message: "app:e:order-controller: PayPal did not capture the payment",
		order: 4711,
		error: describeError(networkError())
	});

	assert.equal(
		line,
		'2026-10-08 21:29:40.426Z error: app:e:order-controller: PayPal did not capture the payment {\n  "order": 4711,\n  "error": {\n    "name": "AxiosError",\n    "message": "getaddrinfo EAI_AGAIN api-m.paypal.com"\n  }\n}'
	);
	assert.ok(!line.includes(CREDENTIALS));
});