//
//  LocationHelper.m
//  olclinic
//
//  Created by hurricaner on 15/9/5.
//  Copyright (c) 2015年 onecloud.ltd. All rights reserved.
//

#import "MOLocationHelper.h"

@implementation MOLocationHelper

+ (MOLocationHelper *)shareLocationHelper
{
    static MOLocationHelper *instance = nil;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^
    {
        instance = [[MOLocationHelper alloc] init];
        [instance locationManager];
    });
    return instance;
}

- (CLLocationManager *)locationManager
{
    if(_locationManager == nil)
    {
        _locationManager = [[CLLocationManager alloc]init];
        _locationManager.delegate = self;
        [_locationManager requestWhenInUseAuthorization];
    }
    return _locationManager;
}

- (void)getLocationAndBlock:(void (^)(double, double))block
{
    self.getLocation = block;
    
    self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;
    self.locationManager.distanceFilter = kCLDistanceFilterNone;
    [self.locationManager startUpdatingLocation];
}

+ (void)getCityNameFromLocation:(CLLocation *)location AndBlock:(void (^)(NSString *))block {
    CLGeocoder *geocoder = [[CLGeocoder alloc] init];

    [geocoder reverseGeocodeLocation:location completionHandler:^(NSArray<CLPlacemark *> * _Nullable placemarks, NSError * _Nullable error) {
        if (error) {
            MOLogV(@"Geocoding error: %@", error.localizedDescription);
            block(@"");
            return;
        }

        if (placemarks.count > 0) {
            CLPlacemark *placemark = placemarks.firstObject;
            NSString *cityName = placemark.locality; // 获取城市名

            MOLogV(@"City Name: %@", cityName);
            block(cityName);
            // 在这里可以使用cityName做你想要的操作
        }
    }];
}



#pragma mark - CLLocationManagerDelegate
// 地理位置发生改变时触发

- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations
{
    // 停止位置更新
    [self.locationManager stopUpdatingLocation];
    CLLocation * currLocation = [locations lastObject];
    if (self.getLocation)
    {
        self.getLocation(currLocation.coordinate.latitude,currLocation.coordinate.longitude);
        self.getLocation = nil;
    }
}

// 定位失误时触发
- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error
{
    // 停止位置更新
    [self.locationManager stopUpdatingLocation];
    if (self.getLocation)
    {
        self.getLocation(0,0);
        self.getLocation = nil;
    }
    MOLogV(@"error:%@",error);
}

#pragma mark - CLLocationManagerDelegate

- (void)locationManagerDidChangeAuthorization:(CLLocationManager *)manager {
    CLAuthorizationStatus status = [CLLocationManager authorizationStatus];

    // 处理授权状态变化
    if (status == kCLAuthorizationStatusAuthorizedWhenInUse || status == kCLAuthorizationStatusAuthorizedAlways) {
        // 执行你的地理位置相关逻辑
        MOLogV(@"Location services are authorized.");
        
        self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;
        self.locationManager.distanceFilter = kCLDistanceFilterNone;
        [self.locationManager startUpdatingLocation];
        
    }
    else{
        UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"定位提示" message:@"请您在“设置”的“隐私”中开启定位服务，为您提供更多的周边服务" delegate:nil cancelButtonTitle:@"知道了" otherButtonTitles:nil, nil];
        [alert show];
    }
}



@end