(() => {
	const messages = [];
	const selectors = [
		".assistant-msg-container, .user-msg-container",
		'[class*="msg-container"]',
		".message-container",
		"article",
		'[data-testid="message"]',
		".chat-message",
	];
	let containers = [];
	for (const sel of selectors) {
		const found = document.querySelectorAll(sel);
		if (found.length > 0) {
			containers = Array.from(found);
			break;
		}
	}
	if (containers.length === 0) {
		console.log("No message containers found");
		return [];
	}
	containers.forEach((container) => {
		const isUser =
			container.classList.contains("user-msg-container") ||
			container.classList.contains("user") ||
			container.getAttribute("data-role") === "user";
		let content = "";
		const images = [];
		const textSelectors = [
			".whitespace-pre-line",
			".progressive-markdown-content",
			'[class*="content"]',
			"p",
			"div",
			'[class*="text"]',
		];
		for (const tSel of textSelectors) {
			const textEl = container.querySelector(tSel);
			if (textEl && textEl.textContent.trim().length > 10) {
				content = textEl.textContent.trim();
				break;
			}
		}
		const imgEls = container.querySelectorAll(
			'.inline-image-card img, img[alt="Generated image"]',
		);
		imgEls.forEach((img) => {
			try {
				const canvas = document.createElement("canvas");
				canvas.width = img.naturalWidth;
				canvas.height = img.naturalHeight;
				if (canvas.width > 0 && canvas.height > 0) {
					canvas.getContext("2d").drawImage(img, 0, 0);
					images.push({
						src: canvas.toDataURL("image/png"),
						alt: img.alt || "Generated image",
					});
				}
			} catch (_e) {}
		});
		if (content || images.length > 0) {
			messages.push({
				role: isUser ? "user" : "assistant",
				content: content,
				images: images,
			});
		}
	});
	window.scannedMessages = messages;
	console.log(
		`Extracted ${messages.length} messages. Stored in window.scannedMessages`,
	);
	const blob = new Blob([JSON.stringify(messages, null, 2)], {
		type: "application/json",
	});
	const url = URL.createObjectURL(blob);
	const a = document.createElement("a");
	a.href = url;
	a.download = `lumo-messages-${new Date().toISOString().slice(0, 19).replace(/[:T]/g, "-")}.json`;
	document.body.appendChild(a);
	a.click();
	document.body.removeChild(a);
	URL.revokeObjectURL(url);
	return messages;
})();