aniclover.github.io/interval-timer.html at master · aniclover/aniclover.github.io · GitHub

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<!DOCTYPE html>
<html>
    <head>
        <meta name="apple-mobile-web-app-capable" content="yes">
        <style type="text/css">
            html, body {
                margin: 0;
                padding: 0;
                background-color: black;
                color: white;
                display: flex;
                height: 100%;
                width: 100%;
                font-family: Helvetica, Arial, sans-serif;
                font-size: 3vw;
            }

            #chat {
                border : 0;
                width: 500px;
            }

            #timer {
                flex-grow: 1;
                padding-top: 100px;
                display: flex;
                text-align: center;
                flex-direction: column;
            }

            #countdown {
                display: flex;
                justify-content: center;
                align-items: center;
                flex-grow: 1;
                font-size: 24vw;
                font-family: monospace;
            }

            #current {
                color: green;
            }

            #next {
                color: yellow;
            }
        </style>
    </head>
    <body data-bs-theme="dark">
        <iframe id="chat" src="https://twitch.tv/embed/anicloverclub/chat?parent=aniclover.com&darkpopout=1"></iframe>
        <div id="timer">
            <div>Current: <span id="current"></span> Next: <span id="next"></span></div>
            <div id="countdown" >00:00</div>
            <a id="editorlink">Edit Timetable</a>
        </div>
        <script type="text/javascript">
            document.getElementById("editorlink").setAttribute("href", `editor.html${window.location.hash}`);

            const timetable = JSON.parse(decodeURIComponent(window.location.hash.substring(1)));

            function updateCountdown() {
                const currentTime = Date.now();
                let currentIdx = 0;
                for (let i = 0; i < timetable.length; i++) {
                    if (timetable[i].start > currentTime)
                        break
                    currentIdx = i;
                }
                document.getElementById("current").innerText = timetable[currentIdx].name;
                if (currentIdx != timetable.length - 1) {
                    document.getElementById("next").innerText = timetable[currentIdx + 1].name;
                    const durationToStart = (timetable[currentIdx + 1].start - currentTime) / 1000;
                    const minutesToStart = Math.floor(durationToStart / 60);
                    const secondsToStart = Math.floor(durationToStart % 60);
                    document.getElementById("countdown").innerText =
                        `${minutesToStart.toString().padStart(2, "0")}:${secondsToStart.toString().padStart(2, "0")}`;
                    if (minutesToStart < 5) {
                        document.getElementById("countdown").style["color"] = "orange";
                    } else {
                        document.getElementById("countdown").style["color"] = null;
                    }
                } else {
                    document.getElementById("next").innerText = "none";
                    document.getElementById("countdown").innerText = "00:00";
                }
            }

            updateCountdown();
            setInterval(updateCountdown, 1000);
        </script>
    </body>
</html>