import Taro from '@tarojs/taro';
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import { DEFAULT_LATITUDE, DEFAULT_LONGITUDE } from '../../../../robotaxi/constants/map';
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import {
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HOME_START_SITE_SOURCE_MANUAL_SELECTED,
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writeHomeStartSiteDisplayState
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} from '../../../../robotaxi/hooks/use-home-start-site-display';
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type Deps = {
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mapState: any;
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siteState: any;
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toOrigin: () => void;
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getMarkerCommitDelayMs?: () => number;
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onRegionBegin?: () => void;
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onRegionSettled?: (payload: { lat: number; lon: number; isInside: boolean }) => void;
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onScaleChange?: (scale: number) => void;
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};
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/**
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* 地图 region-change 编排：处理地图拖拽/缩放后的吸附、回填和自动归位。
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*/
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export default function useRegionChange({ mapState, siteState, toOrigin, getMarkerCommitDelayMs, onRegionBegin, onRegionSettled, onScaleChange }: Deps) {
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/**
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* 查询完成后提交站点 marker：命中吸附时立即提交，未吸附时避让车辆动画窗口再提交。
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*/
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const commitQueriedMarkers = (newMarkers: any[], isInside: boolean, adsorbed: boolean) => {
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if (!isInside || adsorbed) {
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mapState.commitMarkers(newMarkers);
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return;
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}
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const delayMs = typeof getMarkerCommitDelayMs === 'function' ? getMarkerCommitDelayMs() : 0;
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mapState.scheduleMarkerCommit(newMarkers, delayMs);
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};
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/**
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* 将用户显式换点后的吸附结果同步为首页确认上车点。
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*/
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const syncManualSelectedStartSite = (site: any) => {
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if (!site?.latitude || !site?.longitude) {
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return;
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}
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writeHomeStartSiteDisplayState(site, HOME_START_SITE_SOURCE_MANUAL_SELECTED);
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};
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/**
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* 按最终落点回传地图结算结果，保证场站围栏与吸附后的中心点一致。
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*/
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const settleRegionResult = (payload: { lat: number; lon: number; isInside: boolean }) => {
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if (typeof onRegionSettled === 'function') {
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onRegionSettled(payload);
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}
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};
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/**
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* 通过中心点主动触发吸附判断。
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* @param options.allowAdsorb 是否允许吸附到最近点位，默认允许；查看运营区域等仅浏览场景需传 false 以保持视野不被吸附打断。
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*/
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const queryPointerByCenter = async (lat: number, lng: number, options?: { allowAdsorb?: boolean }) => {
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const allowAdsorb = options?.allowAdsorb !== false;
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siteState.setBounce(true);
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siteState.setShowToolTip(false);
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try {
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const { isInside, newMarkers, sites } = await mapState.updateMapData(lat, lng, undefined, { commitMarkers: false });
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if (!isInside) {
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siteState.clearCachedStartSiteSelection();
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commitQueriedMarkers(newMarkers, false, false);
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settleRegionResult({ lat, lon: lng, isInside: false });
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siteState.setIsAdsorbed(false);
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if (allowAdsorb) {
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siteState.setShowToolTip(true); // 运营区外恢复气泡提示
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}
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siteState.setBounce(false);
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return;
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}
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const nearestCandidates = sites.length > 0 ? sites : newMarkers;
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const { adsorbed, marker } = allowAdsorb
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? siteState.tryAdsorb(lat, lng, nearestCandidates)
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: { adsorbed: false, marker: null }; // 仅浏览运营区域时不吸附最近点位
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commitQueriedMarkers(newMarkers, true, adsorbed);
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const finalLat = adsorbed && marker ? marker.latitude : lat; // 最终纬度
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const finalLng = adsorbed && marker ? marker.longitude : lng; // 最终经度
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if (allowAdsorb) {
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// 仅浏览运营区域时不回写地图中心，避免 Map 组件按旧 scale 重绘导致刚展开的运营区视野被收回
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mapState.setLatitude(finalLat);
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mapState.setLongitude(finalLng);
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}
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settleRegionResult({ lat: finalLat, lon: finalLng, isInside: true });
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setTimeout(async () => {
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siteState.setBounce(false);
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if (!adsorbed) {
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await siteState.resolveAddress(lat, lng);
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}
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if (!allowAdsorb) {
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siteState.setShowToolTip(false); // 查看运营区域期间隐藏气泡，避免遮挡围栏，拖动地图后自动恢复
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}
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}, 600);
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} catch (error) {
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siteState.setBounce(false);
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}
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};
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const handleRegionEnd = (causedBy: string, wasReturningToOrigin: boolean) => {
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siteState.setBounce(true);
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const mapCtx = Taro.createMapContext('map');
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mapCtx.getScale({
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success: (res) => {
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if (res.scale <= 3 || res.scale >= 20) {
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if (!mapState.resetTimer.current) {
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mapState.setMapScale(res.scale);
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mapState.resetTimer.current = setTimeout(() => {
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toOrigin();
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}, 6000);
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}
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}
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if (typeof onScaleChange === 'function') {
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onScaleChange(res.scale);
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}
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}
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});
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mapCtx.getCenterLocation({
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success: async (res) => {
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const { latitude: lat, longitude: lng } = res;
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if (
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!lat ||
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!lng ||
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(Math.abs(lat - DEFAULT_LATITUDE) < 0.0001 && Math.abs(lng - DEFAULT_LONGITUDE) < 0.0001)
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) {
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siteState.setBounce(false);
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return;
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}
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if (causedBy === 'gesture' || causedBy === 'drag' || causedBy === 'scale' || wasReturningToOrigin) {
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// 只有发生显著位移时才同步经纬度，避免微小抖动引发的二次重绘
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if (Math.abs(mapState.latitude - lat) > 0.0001 || Math.abs(mapState.longitude - lng) > 0.0001) {
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mapState.setLatitude(lat);
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mapState.setLongitude(lng);
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}
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}
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try {
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const { isInside, newMarkers, sites } = await mapState.updateMapData(lat, lng, undefined, { commitMarkers: false });
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if (!isInside) {
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siteState.clearCachedStartSiteSelection();
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commitQueriedMarkers(newMarkers, false, false);
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settleRegionResult({ lat, lon: lng, isInside: false });
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siteState.setIsAdsorbed(false);
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siteState.setShowToolTip(true); // 运营区外恢复气泡提示
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siteState.setBounce(false);
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return;
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}
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const nearestCandidates = sites.length > 0 ? sites : newMarkers;
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const { adsorbed, marker } = siteState.tryAdsorb(lat, lng, nearestCandidates);
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commitQueriedMarkers(newMarkers, true, adsorbed);
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const finalLat = adsorbed && marker ? marker.latitude : lat; // 最终纬度
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const finalLng = adsorbed && marker ? marker.longitude : lng; // 最终经度
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if (adsorbed && marker && (causedBy === 'gesture' || causedBy === 'drag' || wasReturningToOrigin)) {
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syncManualSelectedStartSite(marker);
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}
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settleRegionResult({ lat: finalLat, lon: finalLng, isInside: true });
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if ((causedBy === 'gesture' || causedBy === 'drag' || wasReturningToOrigin) && marker) {
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mapCtx.moveToLocation({
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latitude: marker.latitude,
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longitude: marker.longitude
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});
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mapState.setLatitude(marker.latitude);
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mapState.setLongitude(marker.longitude);
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}
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setTimeout(async () => {
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siteState.setBounce(false);
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if (!adsorbed) {
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await siteState.resolveAddress(lat, lng);
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}
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}, 600);
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} catch (error) {
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siteState.setBounce(false);
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}
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}
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});
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};
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/**
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* region-change 事件入口。
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*/
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const handleRegionChange = (e: any) => {
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const type = e?.type || e?.detail?.type;
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const causedBy = e?.causedBy || e?.detail?.causedBy;
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if (mapState.isLocationAuthDenied) return;
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if (causedBy === 'gesture' || causedBy === 'drag' || causedBy === 'scale') {
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mapState.shouldIgnoreRegionChange.current = false;
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if (mapState.resetTimer.current) {
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clearTimeout(mapState.resetTimer.current);
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mapState.resetTimer.current = null;
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}
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} else if (mapState.isReturningToOrigin.current) {
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mapState.shouldIgnoreRegionChange.current = false;
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} else {
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mapState.shouldIgnoreRegionChange.current = true;
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return;
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}
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if (type === 'begin') {
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siteState.setShowToolTip(false);
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if (typeof onRegionBegin === 'function') {
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onRegionBegin();
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}
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return;
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}
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if (type !== 'end') return;
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const wasReturningToOrigin = mapState.isReturningToOrigin.current;
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if (mapState.isReturningToOrigin.current) {
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mapState.isReturningToOrigin.current = false;
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}
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if (mapState.shouldIgnoreRegionChange.current) {
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mapState.shouldIgnoreRegionChange.current = false;
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return;
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}
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handleRegionEnd(causedBy, wasReturningToOrigin);
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};
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return { handleRegionChange, queryPointerByCenter };
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}
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