84 lines
3.9 KiB
TypeScript
84 lines
3.9 KiB
TypeScript
import type { HistoryLocationRow, TrackPlaybackEvent, TrackPlaybackResponse } from '../../api/types';
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import { downloadBlob } from './download';
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export const TRACK_ADDRESS_SETTLE_MS = 650;
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export type TrackAddressCoordinate = { longitude: number; latitude: number; key: string };
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export function trackAddressCoordinate(longitude?: number, latitude?: number): TrackAddressCoordinate | undefined {
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if (!Number.isFinite(longitude) || !Number.isFinite(latitude)
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|| Math.abs(longitude ?? 0) > 180 || Math.abs(latitude ?? 0) > 90
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|| (longitude === 0 && latitude === 0)) return undefined;
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const roundedLongitude = Number(longitude!.toFixed(4));
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const roundedLatitude = Number(latitude!.toFixed(4));
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return {
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longitude: roundedLongitude,
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latitude: roundedLatitude,
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key: `${roundedLongitude.toFixed(4)},${roundedLatitude.toFixed(4)}`
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};
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}
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export function formatDuration(seconds: number) {
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const safe = Math.max(0, Math.floor(seconds || 0));
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const hours = Math.floor(safe / 3600);
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const minutes = Math.floor((safe % 3600) / 60);
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const remainder = safe % 60;
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return [hours, minutes, remainder].map((value) => String(value).padStart(2, '0')).join(':');
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}
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export function sampledEventIndex(event: TrackPlaybackEvent, sampledCount: number, originalCount: number) {
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if (sampledCount <= 1 || originalCount <= 1) return 0;
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if (Number.isInteger(event.sampledIndex) && event.sampledIndex >= 0) {
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return Math.min(sampledCount - 1, event.sampledIndex);
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}
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return Math.max(0, Math.min(sampledCount - 1, Math.round(event.index * (sampledCount - 1) / (originalCount - 1))));
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}
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export function trackPlaybackInterval(speed: number) {
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return Math.max(55, 300 / Math.max(0.5, speed));
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}
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export function trackPointMileageAvailable(point?: HistoryLocationRow) {
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return Boolean(point && (point.mileageAvailable ?? point.totalMileageKm > 0));
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}
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export function buildTrackRailSelection(track?: TrackPlaybackResponse) {
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const pointCount = track?.points.length ?? 0;
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const stopIndexesByPoint: Array<number[] | undefined> = new Array(pointCount);
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const eventIndexesByPoint: Array<number[] | undefined> = new Array(pointCount);
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if (!track || pointCount === 0) return { stopIndexesByPoint, eventIndexesByPoint };
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track.stops.forEach((stop, stopIndex) => {
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for (let offset = -1; offset <= 1; offset += 1) {
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const pointIndex = stop.sampledIndex + offset;
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if (pointIndex < 0 || pointIndex >= pointCount) continue;
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(stopIndexesByPoint[pointIndex] ??= []).push(stopIndex);
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}
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});
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track.events.forEach((event, eventIndex) => {
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const pointIndex = sampledEventIndex(event, pointCount, track.summary.pointCount);
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(eventIndexesByPoint[pointIndex] ??= []).push(eventIndex);
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});
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return { stopIndexesByPoint, eventIndexesByPoint };
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}
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function csvCell(value: unknown) {
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const text = String(value ?? '');
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return /[",\n]/.test(text) ? `"${text.replace(/"/g, '""')}"` : text;
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}
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export function trackCsv(track: TrackPlaybackResponse) {
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const headers = ['VIN', '车牌', '协议', '设备时间', '服务时间', '经度', '纬度', '速度(km/h)', '总里程(km)'];
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const rows = track.points.map((point) => [point.vin, point.plate, point.protocol, point.deviceTime, point.serverTime, point.longitude, point.latitude, point.speedKmh, trackPointMileageAvailable(point) ? point.totalMileageKm : '']);
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return `\uFEFF${[headers, ...rows].map((row) => row.map(csvCell).join(',')).join('\n')}`;
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}
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export function downloadTrackCsv(track: TrackPlaybackResponse) {
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const blob = new Blob([trackCsv(track)], { type: 'text/csv;charset=utf-8' });
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downloadBlob(blob, `track-${track.plate || track.vin}-${track.summary.startTime.slice(0, 10) || 'latest'}.csv`);
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}
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export function validTrackPoints(points: HistoryLocationRow[]) {
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return points.filter((point) => Number.isFinite(point.longitude) && Number.isFinite(point.latitude) && point.longitude >= 73 && point.longitude <= 135 && point.latitude >= 18 && point.latitude <= 54);
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}
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