import debug from "debug";

export default {
	async fetch() {
		return testDebug();
	},
} satisfies ExportedHandler;

function testDebug() {
	const capturedLogs: string[] = [];

	// Override debug.log to capture output for verification
	debug.log = (...args: string[]) => {
		capturedLogs.push(args.join(" "));
	};

	// Test different namespaces based on DEBUG env var: "example:*,test"
	const testNamespace = debug("test"); // Should log (matches "test")
	const exampleNamespace = debug("example"); // Should NOT log (doesn't match "example:*")
	const exampleFooNamespace = debug("example:foo"); // Should log (matches "example:*")

	testNamespace("Test import message 1");
	exampleNamespace("Example import message (should not appear)");
	exampleFooNamespace("Example foo import message");

	if (testNamespace.enabled) {
		testNamespace("Test import enabled message");
	}

	// Strip timestamps from captured logs, keeping namespace and message
	// Format: "2025-08-14T20:09:49.769Z test Test import message 1"
	const logsWithoutTimestamp = capturedLogs.map((log) => {
		const parts = log.split(" ");
		return parts.slice(1).join(" "); // Remove timestamp, keep namespace + message
	});

	return Response.json(logsWithoutTimestamp);
}