// ==UserScript==
// @name Youtube transcript copy
// @namespace Violentmonkey Scripts
// @match https://www.youtube.com/watch?v=*
// @grant none
// @run-at document-idle
// @version 1.0.0
// @author Sue Smith MD
// @license AGPL-3.0; https://www.gnu.org/licenses/agpl-3.0.html#license-text
// @description 9/10/2025, 8:56:08 PM
// ==/UserScript==
(()=>{let G=()=>{if(document.getElementById("ytb-copy-transcript-style"))return;let k=document.createElement("style");k.id="ytb-copy-transcript-style",k.textContent=`
.ytb-copy-transcript-btn { font-family: "YouTube Sans","Roboto",sans-serif; font-size: 1.5rem; line-height: 2.8rem; font-weight: 700; overflow: hidden; display: inline-flex; align-items: center; justify-content: center; height: 36px; padding: 0 12px; border-radius: 18px; background: transparent; color: currentColor; border: 1px solid rgba(255,255,255,0.2); cursor: pointer; gap: 6px; }
.ytb-copy-transcript-btn:hover { background: rgba(255,255,255,0.06); }
.ytb-copy-transcript-toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); background: rgba(28,28,28,0.92); color: #fff; padding: 8px 12px; border-radius: 8px; font: 500 12px/16px Roboto, sans-serif; z-index: 2147483647; opacity: 0; transition: opacity 120ms ease-out; }
`,document.head.appendChild(k)},U=(k,z)=>{let A;return(...D)=>{if(A!==void 0)window.clearTimeout(A);A=window.setTimeout(()=>k(...D),z)}},V=(k)=>{if("requestIdleCallback"in window)window.requestIdleCallback(k);else setTimeout(k,0)},X=(k)=>{return Array.from(k.querySelectorAll(".segment-text")).map((D)=>D.textContent?.trim()).filter((D)=>Boolean(D&&D.length>0)).join(`
`)},Y=async(k)=>{try{return await navigator.clipboard.writeText(k),!0}catch(z){let A=document.createElement("textarea");A.value=k,A.style.position="fixed",A.style.top="0",A.style.left="0",A.style.opacity="0",document.body.appendChild(A),A.focus(),A.select();try{return document.execCommand("copy")}finally{A.remove()}}},Z=async()=>{let k=document.querySelector("#segments-container");if(!k){console.warn("No transcript container found; open transcript first.");return}let z=X(k);if(!z){console.warn("No transcript text found in #segments-container");return}let A=await Y(z.replaceAll("[Music]",""));if(j(A?"Copied transcript":"Copy failed"),!A)console.warn("Copy failed. Transcript follows:",z)},J=()=>{let k=["ytd-engagement-panel-title-header-renderer #menu ytd-menu-renderer #top-level-buttons-computed","ytd-engagement-panel-title-header-renderer #top-level-buttons-computed","#panel ytd-engagement-panel-title-header-renderer #top-level-buttons-computed"];for(let z of k){let A=document.querySelector(z);if(A)return A}return null},_=()=>{G();let k=J();if(!k)return;if(k.querySelector('[data-ytb-copy-transcript="true"]'))return;let z=document.createElement("button");z.setAttribute("data-ytb-copy-transcript","true"),z.type="button",z.title="Copy transcript",z.textContent="Copy",z.className="ytb-copy-transcript-btn",z.addEventListener("click",()=>{Z()}),k.appendChild(z)},$=()=>{let k=document.querySelector('ytd-engagement-panel-section-list-renderer[target-id="engagement-panel-searchable-transcript"]');if(k)return k;return document.querySelector("ytd-engagement-panel-section-list-renderer")},F=U(()=>V(_),50),B=()=>{let z=document.querySelector("#primary-button > ytd-button-renderer > yt-button-shape > button");if(z)z.addEventListener("click",()=>{requestAnimationFrame(()=>{F()})});let A=()=>{let N=$();if(!N)return!1;let Q=new MutationObserver(()=>{F()});Q.observe(N,{childList:!0,subtree:!0});let q=()=>{if(J()?.querySelector('[data-ytb-copy-transcript="true"]'))return Q.disconnect(),!0;return!1},R=setInterval(()=>{if(q())clearInterval(R)},300);return!0};F();let D=0,K=setInterval(()=>{if(D+=1,A())clearInterval(K);if(D>=10)clearInterval(K)},400),L=()=>{F(),setTimeout(()=>void A(),600)};window.addEventListener("yt-navigate-finish",L),window.addEventListener("yt-page-data-updated",L)},j=(k)=>{G();let z=document.createElement("div");z.className="ytb-copy-transcript-toast",z.textContent=k,document.body.appendChild(z),requestAnimationFrame(()=>{z.style.opacity="1"}),setTimeout(()=>{z.style.opacity="0",setTimeout(()=>z.remove(),150)},1200)};if(!window.__ytb_copy_transcript_bound)window.__ytb_copy_transcript_bound=!0,document.querySelector("#expand")?.click(),document.querySelector("#primary-button > ytd-button-renderer > yt-button-shape > button")?.click(),B()})();
