random-radio-radio/webinterface/script.js

var micEl;
let chunks = [];

var mediaRecorder = false;

var sendFile = function (blob) {
    const formData = new FormData();

    formData.append('userfile', blob, new Date() + ".webm");

    return fetch('upload.php', {
        method: 'POST',
        body: formData
    });
}

var initRecording = function (autostart) {
    if (navigator.mediaDevices && navigator.mediaDevices.getUserMedia) {
        console.info("getUserMedia supported.");

        navigator.mediaDevices
            .getUserMedia({ audio: true })
            .then((stream) => {
                mediaRecorder = new MediaRecorder(stream);
                console.log(mediaRecorder.mimeType);
                console.log("should i autostarty", autostart);

                mediaRecorder.ondataavailable = (e) => {
                    chunks.push(e.data);
                };

                mediaRecorder.onstop = (e) => {
                    console.log("got a call to stop");
                    var audioEl = document.querySelectorAll("audio")[0];
                    const blob = new Blob(chunks, {
                        type: mediaRecorder.mimeType
                    });
                    console.log(blob);
                    chunks = [];
                    const audioURL = window.URL.createObjectURL(blob);
                    audioEl.src = audioURL;
                    console.log(audioEl.src);
                    sendFile(blob);
                }

                if (autostart) {
                    mediaRecorder.start();
                }
            })
    } else {
        console.error("not supported");
    }
}

var startRecording = function (e) {
    
    if (!mediaRecorder) {
        console.log("did not initalise");
        initRecording(true);
        e.currentTarget.setAttribute("active", true);
    } else {

        if (mediaRecorder.state === "recording") {
            console.log("recording was already happening")
            mediaRecorder.stop();
            e.currentTarget.setAttribute("active", false);
        } else {
            console.log("not yet recording, about tos tart");
            mediaRecorder.start();
            e.currentTarget.setAttribute("active", true);
        }
    }


}
window.onload = function () {
    console.log("load app");

    micEl = document.querySelector('.fn-start-recording');
    
    micEl.addEventListener('click', startRecording);


}