feat: polish

src/lib/domain/telemetry.ts

@@ -0,0 +1,41 @@
+import type { LatLngTuple } from './geo';
+import type { Point } from './prediction';
+
+export interface TelemetryPoint {
+	altitude: number;
+	datetime: string;
+	latitude: number;
+	longitude: number;
+	payload: string;
+}
+
+export interface TelemetryMetadata {
+	complete_datetime: string;
+	start_datetime: string;
+}
+
+export interface RawTelemetry {
+	metadata: TelemetryMetadata;
+	telemetry: TelemetryPoint[];
+}
+
+export interface Telemetry {
+	flight_path: LatLngTuple[];
+	launch: Point;
+	datapoints: TelemetryPoint[];
+}
+
+export function parseTelemetry(points: TelemetryPoint[]): Telemetry {
+	if (points.length === 0) {
+		throw new Error('Telemetry requires at least one datapoint');
+	}
+
+	const flight_path: LatLngTuple[] = points.map((p) => [p.latitude, p.longitude, p.altitude]);
+
+	const launch: Point = {
+		latlng: { lat: points[0].latitude, lng: points[0].longitude, alt: points[0].altitude },
+		datetime: new Date(points[0].datetime),
+	};
+
+	return { flight_path, launch, datapoints: points };
+}