RandomClipPlayer/viewer.html at main · ShaderWave/RandomClipPlayer · GitHub

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<html>

<body>
    <script>
        // hey streamer! all of the config stuff is here
        const CLIENT_ID = "ID"
        const CLIENT_SECRET = "Secret"
        const BROADCASTER_NAME = "Broadcaster"

        const TOP_OR_RANDOM = "top"
        const VOLUME_PERCENT = 50
        const SHOW_CLIP_CREATORS = "false"
        const PREFERRED_VIDEO_QUALITY = "1080"
        // TOP_OR_RANDOM can be either "top" to prioritise top clips or "random" to get random clips out of your top 1000
        // note that "random" clip mode requires a tiny bit of buffer time when the page is first loaded to collect a list of clips

        // below is just all the code that makes this work. once you've configured the settings above, you're good to go!
        // -ShaderWave


        // Utility functions
        async function authenticatedFetch(url, options) {
            options = options || {};
            options.headers = options.headers || {}

            options.headers["Client-ID"] = CLIENT_ID
            options.headers["Authorization"] = `Bearer ${(await getTwitchCredentials()).access_token}`

            return await fetch(url, options);
        }

        let OAUTH = null;
        async function getTwitchCredentials() {
            if (OAUTH) return OAUTH;

            const response = await fetch(`https://id.twitch.tv/oauth2/token?client_id=${CLIENT_ID}&client_secret=${CLIENT_SECRET}&grant_type=client_credentials`, {
                method: "POST"
            })
            OAUTH = await response.json();
            return OAUTH;
        }

        let BROADCASTER_ID = null;
        async function getBroadcasterId() {
            if (BROADCASTER_ID) return BROADCASTER_ID;

            const response = await authenticatedFetch(`https://api.twitch.tv/helix/users?login=${BROADCASTER_NAME}`)
            BROADCASTER_ID = (await response.json()).data[0].id;
            return BROADCASTER_ID;
        }

        let CLIPS_PAGINATION = null
        async function getTopClips() {
            let response = await authenticatedFetch(`https://api.twitch.tv/helix/clips?first=100&broadcaster_id=${await getBroadcasterId()}${CLIPS_PAGINATION ? `&after=${CLIPS_PAGINATION}` : ""}`);
            let body = await response.json();

            CLIPS_PAGINATION = body.pagination.cursor;
            return body;
        }

        async function getRandomClips() {
            let clips = []

            const max = 10
            let pagination = null;
            for (let i = 0; i < max; i++) { // top 1000 clips
                let response = await authenticatedFetch(`https://api.twitch.tv/helix/clips?first=100&broadcaster_id=${await getBroadcasterId()}${pagination ? `&after=${pagination}` : ""}`);
                let body = await response.json()

                pagination = body.pagination.cursor;
                clips = clips.concat(body.data)

                const status = document.getElementById("status")
                status.innerText = "Loading Clips: " + Math.floor(((i + 1) / max) * 100) + "%"
            }

            return clips;
        }

        async function getClipStreamURL(clip) {
            const result = await getClipInfo(clip.id)
            // console.log(`Selected target: ${JSON.stringify(result)}`)

            const uri = result.sourceUrl + "?token=" + encodeURIComponent(result.token) + "&sig=" + encodeURIComponent(result.signature)
            // console.log(`Video URI: ${uri}`)

            return uri
        }

        async function getClipInfo(clipId) {
            const content = JSON.stringify(buildGraphQLQuery(clipId))
            const response = await fetch("https://gql.twitch.tv/gql", {
                method: "POST",
                headers: {
                   "Content-Type": "application/json",
                   "Client-ID": "kimne78kx3ncx6brgo4mv6wki5h1ko"
                },
                body: content
            })

            const responseBody = await response.text()
            // console.log(`GraphQL Response: ${responseBody}`)

            return parseGraphQLResponse(responseBody)
        }

        function buildGraphQLQuery(clipId) {
           return {
              operationName: "VideoAccessToken_Clip",
              variables: {
                  slug: clipId
              },
              extensions: {
                   persistedQuery: {
                       version: 1,
                       sha256Hash: "36b89d2507fce29e5ca551df756d27c1cfe079e2609642b4390aa4c35796eb11"
                   }
              }
           }
        }

        function parseGraphQLResponse(responseBody) {
             const jsonResponse = JSON.parse(responseBody);

             const videoQualities = jsonResponse.data.clip.videoQualities;

             const preferredQualityIndex = videoQualities.findIndex(video => video.quality == PREFERRED_VIDEO_QUALITY);
             const sourceUrlIndex = preferredQualityIndex == -1 ? 0 : preferredQualityIndex;
             const playbackAccessToken = jsonResponse.data.clip.playbackAccessToken;

             return {
                 sourceUrl: videoQualities[sourceUrlIndex].sourceURL,
                 signature: playbackAccessToken.signature,
                 token: playbackAccessToken.value
             }
        }

        let CLIPS_TO_PLAY = []
        let CLIP_PLAYING = null

        function setupPlayer() {
            const player = document.getElementById("player")

            player.load()
            player.loop = false;
            player.controls = false;
            player.volume = VOLUME_PERCENT / 100

            player.addEventListener("ended", playRandom)
        }

        async function playRandom() {
            const player = document.getElementById("player")
            const overlayText = document.getElementById("overlay")

            if (CLIP_PLAYING) {
                CLIPS_TO_PLAY.splice(CLIPS_TO_PLAY.indexOf(CLIP_PLAYING), 1)
            }

            if (CLIPS_TO_PLAY.length == 0) {
                const status = document.getElementById("status")

                status.className = "statusText"
                CLIPS_TO_PLAY = TOP_OR_RANDOM == "top" ? (await getTopClips()).data : await getRandomClips()
                status.className = "statusText hide"
            }

            let random = Math.floor(Math.random() * Object.keys(CLIPS_TO_PLAY).length)
            const clip = CLIPS_TO_PLAY[Object.keys(CLIPS_TO_PLAY)[random]]

            CLIP_PLAYING = clip

            player.pause()
            player.src = await getClipStreamURL(clip)
            player.play()
            if (SHOW_CLIP_CREATORS.toLowerCase() == "true") {
                let date = new Date(clip.created_at)
                let day = ('0' + date.getDate()).slice(-2);
                let month = ('0' + (date.getMonth()+1)).slice(-2);
                let year = date.getFullYear();
                overlayText.innerText = `Clipped on ${year}-${month}-${day} by ${clip.creator_name}`
            }
        }


        function run() {
            setupPlayer()
            playRandom()
        }

        window.addEventListener("load", run);
    </script>
    <div class="container">
        <video id="player" style="width: 100%; height: 100%; position: absolute; top: 0; left: 0; z-index: -1;"></video>
        <div id="overlay" class="overlayText"></div>
        <h1 id="status" class="statusText">Loading Clips</h1>
    </div>
</body>

<head>
    <style>
        .statusText {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);

            color: white;
            background-color: black;
            padding: 4px 8px 4px 8px;
            border-radius: 4px;
        }

        .statusText.hide {
            display: none;
        }

        .container {
            position: relative;
            width: 100%;
            height: 100%;
        }

        .overlayText {
            position: absolute;
            /*These calcs are used to track the bottom corner of the video as it holds its aspect ratio while the window is resized*/
            top: calc((100vh - min(100vh/9, 100vw/16)*9)/2 + min(100vh/9, 100vw/16)*9 - 40px);
            left: calc((100vw - min(100vh/9, 100vw/16)*16)/2 + 1.2vw);
            color: white;
            font-size: large;
        }
    </style>
</head>

</html>