niconico_live_user_live_program_user_script.user.js

// ==UserScript==
// @name        niconico_live_user_live_program_user_script
// @namespace   Violentmonkey Scripts
// @match       https://live.nicovideo.jp/embed/broadcast-history
// @grant       none
// @version     0.1.0
// @author      aoirint
// @description 2023-12-08T00:07:54+09:00
// ==/UserScript==

(() => {
    function run() {
        const textAreaElement = document.createElement("textarea")

        textAreaElement.cols = 80
        textAreaElement.rows = 3
        textAreaElement.style.fontSize = "6pt"
        textAreaElement.style.position = "fixed"
        textAreaElement.style.zIndex = 999
        textAreaElement.style.left = 0
        textAreaElement.style.top = 0

        document.body.appendChild(textAreaElement)

        textAreaElement.addEventListener("click", (event) => {
          event.target.select()
        })

        let string = ""
        for (const programCardElement of [...document.querySelectorAll(".program-card")]) {
          // ライブ公開を除外
          if (programCardElement.querySelector(".video-premiere-label") != null) continue;

          string += [
              new URL(programCardElement.querySelector(".program-title a").href).pathname.slice(7),
              programCardElement.querySelector(".start-at").getAttribute("datetime").replace(" ", "T") + "+09:00",
              programCardElement.querySelector(".end-at").getAttribute("datetime").replace(" ", "T") + "+09:00",
              programCardElement.querySelector(".program-title").innerText,
          ].join("\t") + "\n"
        }

        textAreaElement.value = string
    }

    let intervalId = null

    intervalId = setInterval(() => {
        const totalCountElement = document.querySelector(".total-count")
        if (totalCountElement == null) return

        const totalCount = parseInt(totalCountElement.dataset.value)
        if (totalCount == 0) return

        run()

        clearInterval(intervalId)
    }, 300)
})()