// ==UserScript==
// @name         Prefix ChatGPT chats with "S:"
// @namespace    http://tampermonkey.net/
// @version      2024-11-23T16:11:30+05:30
// @description  For TOTALLY legit usage reasons...
// @author       Sangeeth Sudheer
// @match        https://chatgpt.com/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=chatgpt.com
// @updateURL    https://git.sangeeth.dev/x/userscripts/raw/branch/main/chatgpt-chat-prefixer/ChatGPTChatPrefixer.user.js
// @downloadURL  https://git.sangeeth.dev/x/userscripts/raw/branch/main/chatgpt-chat-prefixer/ChatGPTChatPrefixer.user.js
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    const PREFIX = "S: ";

    const sels = {
        activeChatSidebarItem: '[data-testid^="history-item"]:has(> [class~="bg-token-sidebar-surface-secondary"])',
        renamePopoverItem: '[data-testid="share-chat-menu-item"] + div',
    }

    function triggerEnterKey(el) {
        const event = new KeyboardEvent('keydown', {
            key: 'Enter',
            code: 'Enter',
            bubbles: true
        });

        el.dispatchEvent(event);
    }

    function wait(ms) {
        const { resolve, reject, promise } = Promise.withResolvers();

        setTimeout(resolve, ms);

        return promise;
    }

    function waitFor(sel, el = document) {
        const { resolve, reject, promise } = Promise.withResolvers();
        let count = 0;

        function _wait() {
            if (el.querySelector(sel)) {
                resolve();
            }

            ++count;

            if (count >= 5) {
                reject();
            }

            setTimeout(_wait, 1000);
        }

        _wait();
    }

    async function getStableLabelText(el) {
        while (true) {
            const prev = el.textContent.trim();
            await wait(1000);
            const curr = el.textContent.trim();

            if (prev === curr) {
                return curr;
            }
        }
    }

    async function main() {
        try {
            const menuItem = document.querySelector(sels.activeChatSidebarItem);

            if (!menuItem) {
                console.log("Active chat menu item wasn't found. You're either not on the regular chat page or the markup has changed");
                return;
            }

            const label = await getStableLabelText(menuItem.querySelector("a"));

            if (/new chat/i.test(label)) {
                console.log("Chat label isn't yet autopopulated by LLM");
                return;
            }

            if (label.startsWith(PREFIX)) {
                console.log("No need to rename chat");
                return;
            }

            triggerEnterKey(menuItem.querySelector("button"));
            await wait(100);

            document.querySelector(sels.renamePopoverItem).click();
            await wait(500);

            const input = menuItem.querySelector("input");
            const prevValue = input.value;

            input.focus();
            await wait(100);

            input.value = `${PREFIX}${label}`;

            if (input._valueTracker) {
                input._valueTracker.setValue(prevValue);
            }

            const inputEvent = new Event('input', { bubbles: true });
            input.dispatchEvent(inputEvent);

            triggerEnterKey(input);
            await wait(100);

            console.log("Renamed chat");
        } finally {
            setTimeout(main, 5000);
        }
    }


    setTimeout(main, 5000);
})();