定位获取城市功能，需要微信地图的key？

2026-07-06 14:02:07 +08:00
parent 67af6d7d53
commit c87d79109a
18 changed files with 792 additions and 70 deletions
@@ -0,0 +1,119 @@
+import { Injectable, Logger } from '@nestjs/common';
+import { loadAppConfig } from '@dukang/shared-types';
+import { PrismaService } from '../../common/prisma/prisma.module';
+import type { WechatActorRef } from '../wechat/wechat-log.util';
+
+export type ReverseGeocodeResult = {
+  province: string;
+  city: string;
+  district: string;
+  logId: bigint;
+};
+
+function normalizeCityName(name: string) {
+  return name.replace(/市$/, '').trim();
+}
+
+@Injectable()
+export class TencentLbsProvider {
+  private readonly logger = new Logger(TencentLbsProvider.name);
+  private readonly config = loadAppConfig();
+
+  constructor(private readonly prisma: PrismaService) {}
+
+  isEnabled() {
+    return !!this.config.tencentLbsKey;
+  }
+
+  async reverseGeocode(
+    latitude: number,
+    longitude: number,
+    actorRef?: WechatActorRef,
+  ): Promise<ReverseGeocodeResult | null> {
+    const baseLog = {
+      provider: 'WECHAT_MAP' as const,
+      scene: 'REVERSE_GEOCODE',
+      refType: actorRef?.refType,
+      refId: actorRef?.refId,
+      requestUrl: 'https://apis.map.qq.com/ws/geocoder/v1/',
+      requestBody: {
+        latitude: Number(latitude.toFixed(6)),
+        longitude: Number(longitude.toFixed(6)),
+      },
+    };
+
+    if (!this.isEnabled()) {
+      const log = await this.prisma.logThirdParty.create({
+        data: {
+          ...baseLog,
+          status: 'FAILED',
+          errorMessage: 'TENCENT_LBS_KEY 未配置',
+        },
+      });
+      this.logger.warn('Tencent LBS key missing, skip reverse geocode');
+      return null;
+    }
+
+    const location = `${latitude},${longitude}`;
+    const url = new URL('https://apis.map.qq.com/ws/geocoder/v1/');
+    url.searchParams.set('location', location);
+    url.searchParams.set('key', this.config.tencentLbsKey);
+    url.searchParams.set('get_poi', '0');
+
+    try {
+      const res = await fetch(url.toString());
+      const data = (await res.json()) as {
+        status?: number;
+        message?: string;
+        result?: {
+          ad_info?: {
+            province?: string;
+            city?: string;
+            district?: string;
+          };
+        };
+      };
+
+      const ad = data.result?.ad_info;
+      const ok = data.status === 0 && !!ad?.city;
+      const responseBody = {
+        status: data.status,
+        message: data.message,
+        province: ad?.province,
+        city: ad?.city,
+        district: ad?.district,
+      };
+
+      const log = await this.prisma.logThirdParty.create({
+        data: {
+          ...baseLog,
+          responseBody,
+          status: ok ? 'SUCCESS' : 'FAILED',
+          errorMessage: ok ? undefined : data.message ?? '逆地理编码失败',
+        },
+      });
+
+      if (!ok || !ad?.province || !ad?.city) {
+        return null;
+      }
+
+      return {
+        province: ad.province,
+        city: normalizeCityName(ad.city),
+        district: ad.district ?? '',
+        logId: log.id,
+      };
+    } catch (err) {
+      const message = err instanceof Error ? err.message : String(err);
+      this.logger.error(`Tencent LBS reverse geocode failed: ${message}`);
+      await this.prisma.logThirdParty.create({
+        data: {
+          ...baseLog,
+          status: 'FAILED',
+          errorMessage: message.slice(0, 512),
+        },
+      });
+      return null;
+    }
+  }
+}