Twitter Canned Replies

twitter.user.js

// ==UserScript==
// @name         Twitter Canned Replies
// @namespace    https://www.twitter.com/
// @version      1.0
// @description  Adds ability to create/send canned replies to DMs
// @author       Kevin Wang <kevmo314@gmail.com>
// @match        https://www.tampermonkey.net/index.php?version=4.9.6095&ext=fire&updated=true
// @include 	 https://twitter.com/messages/*
// @require      https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js
// @grant        GM.setValue
// @grant        GM.getValue
// ==/UserScript==

setInterval(async function() {
    const location = window.location.pathname;
    if (!location.includes('-')) {
        return;
    }
    const recipientId = location.split('-')[1];

    if(new URLSearchParams(window.location.search).get('GMautosend')) {
        $("[aria-label='Send']").click();
        window.location.href = `https://twitter.com/messages/compose?recipient_id=${recipientId}`;
    }

    if ($("#canned-replies").length) {
        return;
    }
    const target = $("aside[aria-label='Start a new message']");
    if (!target.length) {
        return;
    }
    target.prepend($("<div id='canned-replies' style='color: white; padding: 16px;'>Canned Replies:<div id='canned-reply-options'></div><button id='canned-reply-add'>add</button></div>"))

    const value = await GM.getValue("canned-replies", "[]");
    console.log(value);
    const cans = JSON.parse(value);

    for (const can of cans) {
        const button = $("<button>" + can.name + "</button>")
        $("#canned-reply-options").append(button);
        button.click(function() {
            const escaped = encodeURIComponent(can.content);
            window.location.href = `https://twitter.com/messages/compose?recipient_id=${recipientId}&text=${escaped}&GMautosend=true`
        });
    }

    $("#canned-reply-add").click(function() {
        const name = prompt("Enter a name for this canned reply");
        const content = $("[data-testid='dmComposerTextInput']").text();

        GM.setValue("canned-replies", JSON.stringify([...cans, {name, content}]));

        $("#canned-replies").remove();
    });
}, 1000);