Respect the URL parameters when loading the restreamer

thrimbletrimmer/src/common/streamInfo.tsx

@@ -4,4 +4,34 @@ export class StreamVideoInfo {
 	streamName: string;
 	streamStartTime: DateTime;
 	streamEndTime: DateTime | null;
+
+	public static defaultFromURL(): StreamVideoInfo | null {
+		const url = new URL(window.location.href);
+		const urlParams = url.searchParams;
+		const stream = urlParams.get("stream");
+		const start = urlParams.get("start");
+		const end = urlParams.get("end");
+		if (stream === null) {
+			return null;
+		}
+		if (start === null) {
+			return null;
+		}
+		const startTime = DateTime.fromISO(start, { zone: "utc" });
+		if (!startTime.isValid) {
+			return null;
+		}
+		let endTime: DateTime | null = null;
+		if (end !== null) {
+			endTime = DateTime.fromISO(end, { zone: "utc" });
+			if (!endTime.isValid) {
+				return null;
+			}
+		}
+		return {
+			streamName: stream,
+			streamStartTime: startTime,
+			streamEndTime: endTime,
+		};
+	}
 }

thrimbletrimmer/src/common/video.tsx

@@ -27,13 +27,20 @@ export const VIDEO_FRAMES_PER_SECOND = 30;
 export const PLAYBACK_RATES = [0.25, 0.5, 0.75, 1, 1.25, 1.5, 1.75, 2, 4, 8];
 
 export interface StreamTimeSettingsProps {
+	/** Getter for the signal to get the time when the run starts. */
 	busStartTime: Accessor<DateTime>;
+	/** Getter for the StreamVideoInfo signal. Used to set field values and, if applicable, apply defaults. */
 	streamVideoInfo: Accessor<StreamVideoInfo>;
+	/** Setter for the StreamVideoInfo signal. */
 	setStreamVideoInfo: Setter<StreamVideoInfo>;
-	/// If true, shows a link to the same page with the specified stream and time range. For the link to work, the host
-	/// page must support defaulting the link data into the StreamVideoInfo.
+	/**
+	 * If true, shows a link to the same page with the specified stream and time range. For the link to work, the host
+	 * page must support defaulting the link data into the StreamVideoInfo.
+	 */
 	showTimeRangeLink: boolean;
+	/** Getter for the signal containing the list of errors to display. */
 	errorList: Accessor<string[]>;
+	/** Setter for the signal containing the list of errors to display. */
 	setErrorList: Setter<string[]>;
 }
 

thrimbletrimmer/src/restreamer/Restreamer.tsx

@@ -91,11 +91,15 @@ const RestreamerWithDefaults: Component<RestreamerDefaultProps> = (props) => {
 		return <></>;
 	}
 	const [busStartTime, setBusStartTime] = createSignal<DateTime>(busStartTimeDefault);
-	const [streamVideoInfo, setStreamVideoInfo] = createSignal<StreamVideoInfo>({
-		streamName: props.defaults.video_channel,
-		streamStartTime: DateTime.utc().minus({ minutes: 10 }),
-		streamEndTime: null,
-	});
+	let defaultStreamInfo = StreamVideoInfo.defaultFromURL();
+	if (defaultStreamInfo === null) {
+		defaultStreamInfo = {
+			streamName: props.defaults.video_channel,
+			streamStartTime: DateTime.utc().minus({ minutes: 10 }),
+			streamEndTime: null,
+		};
+	}
+	const [streamVideoInfo, setStreamVideoInfo] = createSignal<StreamVideoInfo>(defaultStreamInfo);
 	const [playerTime, setPlayerTime] = createSignal<number>(0);
 	const [mediaPlayer, setMediaPlayer] = createSignal<MediaPlayerElement>();
 	const [videoFragments, setVideoFragments] = createSignal<Fragment[]>([]);