package com.xscm.moduleutil.utils;

import android.Manifest;
import android.app.Activity;
import android.content.Context;
import android.content.pm.PackageManager;
import android.location.Address;
import android.location.Geocoder;
import android.os.Looper;
import android.util.Log;

import androidx.annotation.NonNull;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;

import com.google.android.gms.location.FusedLocationProviderClient;
import com.google.android.gms.location.LocationCallback;
import com.google.android.gms.location.LocationRequest;
import com.google.android.gms.location.LocationResult;
import com.google.android.gms.location.LocationServices;

import java.io.IOException;
import java.util.List;
import java.util.Locale;

public class LocationUtils {
    private static final String TAG = "LocationUtils";
    private FusedLocationProviderClient fusedLocationClient;

    public interface LocationCallbackInterface {
        void onLocationReceived(double latitude, double longitude, String city);
        void onFailed(String errorMessage);
    }

    public LocationUtils(Context context) {
        fusedLocationClient = LocationServices.getFusedLocationProviderClient(context);

    }

    private void getLastLocation() {
    }

    public void getLastLocation(Context context,LocationCallbackInterface callback) {
        if (ContextCompat.checkSelfPermission(context, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {

            // 请求定位权限
            ActivityCompat.requestPermissions(
                    (Activity) context,
                    new String[]{
                            Manifest.permission.ACCESS_FINE_LOCATION,
                            Manifest.permission.ACCESS_COARSE_LOCATION
                    },
                    1001 // 自定义常量，比如 1001

            );
            return;
        }

        fusedLocationClient.getLastLocation()
                .addOnSuccessListener(location -> {
                    if (location != null) {
                        // 获取城市名称
                        String city = getCityName(context, location.getLatitude(), location.getLongitude());
                        callback.onLocationReceived(location.getLatitude(), location.getLongitude(), city);
                    } else {
                        callback.onFailed("无法获取位置");
                    }
                })
                .addOnFailureListener(e -> callback.onFailed("定位失败：" + e.getMessage()));
    }

    public void requestLocationUpdates(Context context,LocationCallbackInterface callback) {
        LocationRequest locationRequest = LocationRequest.create();
        locationRequest.setInterval(10000); // 每10秒更新一次
        locationRequest.setFastestInterval(5000);
        locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);

        if (ActivityCompat.checkSelfPermission(context, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            callback.onFailed("定位权限未授予");
            return;
        }

        fusedLocationClient.requestLocationUpdates(locationRequest, new LocationCallback() {
            @Override
            public void onLocationResult(@NonNull LocationResult locationResult) {
                if (locationResult == null) {
                    callback.onFailed("无位置更新");
                    return;
                }

                for (android.location.Location location : locationResult.getLocations()) {
                    String city = getCityName(context, location.getLatitude(), location.getLongitude());
                    callback.onLocationReceived(location.getLatitude(), location.getLongitude(), city);
                }
            }
        }, Looper.getMainLooper());
    }

    private String getCityName(Context context, double latitude, double longitude) {
        Geocoder geocoder = new Geocoder(context, Locale.getDefault());
        try {
            List<Address> addresses = geocoder.getFromLocation(latitude, longitude, 1);
            if (addresses != null && !addresses.isEmpty()) {
                Address address = addresses.get(0);
                return address.getLocality(); // 城市名
            }
        } catch (IOException e) {
            Log.e(TAG, "地理编码失败", e);
        }
        return "未知城市";
    }
}