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 };
}