/*
 * Copyright (c) 2023 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import geolocation from '@ohos.geolocation';
import { Log } from '../../utils/Log';
import { SettingManager } from '../../setting/SettingManager';
import { BusinessError } from '@ohos.base';

export class GeoLocation {
  private TAG: string = '[GeoLocation]:'
  private static instance: GeoLocation
  private requestInfo: geolocation.LocationRequest = {
    priority: 0x203,
    scenario: 0x300,
    timeInterval: 0,
    distanceInterval: 0,
    maxAccuracy: 0
  }
  private locationChange = (location: geolocation.Location): void => { //删掉参数err及相关逻辑
    Log.info(`[GeoLocation]: locationChange: ${location}`)
    SettingManager.getInstance().setCurGeoLocation(location)
  }

  public static getInstance() {
    if (!GeoLocation.instance) {
      GeoLocation.instance = new GeoLocation()
    }
    return GeoLocation.instance
  }

  public async on() {
    Log.info(`${this.TAG} on E`)
    if (!SettingManager.getInstance().getSaveGeoLocation()) {
      Log.info(`${this.TAG} on geo setting off, X`)
      return
    }
    geolocation.isLocationEnabled().then((result) => {
      Log.info(`${this.TAG} isLocationEnabled: ${result}`)
      if (result) {
        let curRequestInfo: geolocation.CurrentLocationRequest = {
          'priority': 0x203,
          'scenario': 0x300,
          'maxAccuracy': 1000
        }
        geolocation.getCurrentLocation(curRequestInfo).then((result) => {
          Log.info(`${this.TAG} on getCurrentLocation result: ${JSON.stringify(result)}`)
          SettingManager.getInstance().setCurGeoLocation(result)
        }).catch((err:BusinessError) => {
          Log.info(`${this.TAG} on getCurrentLocation err result: ${JSON.stringify(err)}`)
        })
        geolocation.on('locationChange', this.requestInfo, this.locationChange)
      }
    })
    Log.info(`${this.TAG} on X`)
  }

  public async off() {
    Log.info(`${this.TAG} off E`)
    if (!SettingManager.getInstance().getSaveGeoLocation()) {
      Log.info(`${this.TAG} off geo setting off X`)
      return
    }
    geolocation.off('locationChange', this.locationChange)
    Log.info(`${this.TAG} off X`)
  }
}