import { MatrixClient, SimpleFsStorageProvider } from "@vector-im/matrix-bot-sdk";
import escapeHTML from "escape-html";
import { resolveServer, formatBytes, formatDuration } from "./util.js";
import { homeserver_url, access_token } from "./cred.js";

var storage = new SimpleFsStorageProvider("storage.json");

export var client = new MatrixClient(homeserver_url, access_token, storage);

client.on("room.message", async (roomId, event) => {
	console.log(roomId, JSON.stringify(event));

	if (event.sender != await client.getUserId()) return;
	if (!event.content) return;
	if (event.content["m.relates_to"]?.rel_type == "m.replace" || event.content["m.new_content"]) return;
	if (!["m.video","m.file"].includes(event.content.msgtype)) return;
	if (!event.content.url?.startsWith("mxc://kitty.haus")) return;

	let [server_name, media_id] = event.content.url.replace("mxc://", '').split("/");
	let body = event.content.filename ? event.content.body : null;
	let formatted_body = event.content.formatted_body;
	let filename = event.content.filename || event.content.body;
	let i = event.content.info || {};

	let direct_url = `https://mxc.kitty.haus/${media_id}/${encodeURIComponent(filename)}?type=${encodeURIComponent(i.mimetype || "application/octet-stream")}`;
	let details = [];
	if (i.duration || i.size || i.w || i.h) {
		if (i.duration) details.push(formatDuration(i.duration));
		if (i.size) details.push(formatBytes(i.size));
		if (i.w || i.h) details.push(`${i.w}x${i.h}`);
	}
	details = details.length ? ` (${details.join(", ")})` : "";
	let plain = `Direct URL: ${direct_url}${details}`;
	let html = `<a href="${direct_url}">${escapeHTML(filename)}</a>${escapeHTML(details)}`;

	if (formatted_body) html = `${formatted_body}<br><br>${html}`;
	else if (body) html = `${escapeHTML(body)}<br><br>${html}`;
	if (body) plain = `${body}\n\n${plain}`;

	let m_new_content = Object.assign(structuredClone(event.content), {
		format: "org.matrix.custom.html",
		formatted_body: html,
		body: plain,
		filename
	});

	let content = Object.assign(structuredClone(m_new_content), {
		"m.new_content": m_new_content,
		"m.relates_to": {
			event_id: event.event_id,
			rel_type: "m.replace"
		},
		body: `* ${m_new_content.body}`,
		formatted_body: `* ${m_new_content.formatted_body}`
	});
	
	client.sendEvent(roomId, "m.room.message", content);
});

client.start().then(() => console.log("Bot started!"));