Initial commit: gmTouringMiniApp project

src/stores/modules/location.ts

@@ -0,0 +1,58 @@
+import type { GeoPoint } from '@/domain/poi'
+import { defineStore } from 'pinia'
+
+export type UserLocationStatus = 'idle' | 'locating' | 'ready' | 'denied' | 'unavailable' | 'error'
+
+export interface UserLocationSnapshot extends GeoPoint {
+  accuracy: number | null
+  capturedAt: string
+  coordinateSystem: 'GCJ02'
+}
+
+interface UserLocationState {
+  status: UserLocationStatus
+  snapshot: UserLocationSnapshot | null
+  errorMessage: string
+}
+
+function isValidCoordinate(longitude: number, latitude: number): boolean {
+  return Number.isFinite(longitude)
+    && Number.isFinite(latitude)
+    && longitude >= -180
+    && longitude <= 180
+    && latitude >= -90
+    && latitude <= 90
+}
+
+export const useLocationStore = defineStore('user-location-session', {
+  state: (): UserLocationState => ({
+    status: 'idle',
+    snapshot: null,
+    errorMessage: '',
+  }),
+  actions: {
+    startLocating() {
+      this.status = 'locating'
+      this.errorMessage = ''
+    },
+    updateLocation(longitude: number, latitude: number, accuracy?: number | null) {
+      if (!isValidCoordinate(longitude, latitude))
+        return false
+
+      this.snapshot = {
+        longitude,
+        latitude,
+        accuracy: Number.isFinite(accuracy) && Number(accuracy) >= 0 ? Number(accuracy) : null,
+        capturedAt: new Date().toISOString(),
+        coordinateSystem: 'GCJ02',
+      }
+      this.status = 'ready'
+      this.errorMessage = ''
+      return true
+    },
+    failLocation(status: Exclude<UserLocationStatus, 'idle' | 'locating' | 'ready'>, message: string) {
+      this.status = status
+      this.errorMessage = message
+    },
+  },
+})