import {
	UTSAndroid
} from "io.dcloud.uts";

import ActivityCompat from "androidx.core.app.ActivityCompat";
import Manifest from "android.Manifest";
import Looper from "android.os.Looper";
import TencentLocationManager from "com.tencent.map.geolocation.TencentLocationManager";
import TencentLocationListener from "com.tencent.map.geolocation.TencentLocationListener";
import TencentLocation from "com.tencent.map.geolocation.TencentLocation";
import TencentLocationRequest from "com.tencent.map.geolocation.TencentLocationRequest";
import PackageManager from "android.content.pm.PackageManager";
import Class from 'java.lang.Class';
import Exception from 'java.lang.Exception';

import { GetLocation, GetLocationOptions, GetLocationSuccess,GetLocationFail } from "../interface.uts"



export const getLocation : GetLocation = function (options : GetLocationOptions) {

	if(!checkHasIntegration()){
		// 当前没有集成腾讯sdk，提示需要打包
		let ret = new UniError("uni-getLocation-tencent",-10,"需要打自定义基座");
		
		options.fail?.(ret)
		options.complete?.(ret)
		return;
	}
	if (!checkLocationConfig()) {
		let ret = new UniError("uni-getLocation-tencent",-20,"未通过配置预校验，通常是app key 配置错误");
		options.fail?.(ret)
		options.complete?.(ret)
		return;
	}
	
	/**
	 * 准备权限
	 */
	let permissionNeed = ["android.permission.ACCESS_FINE_LOCATION"];
	UTSAndroid.requestSystemPermission(UTSAndroid.getUniActivity()!, permissionNeed, function (allRight:boolean,_grantedList:string[]) {
		if (allRight) {
			// 交给目前的location 引擎，真实执行
			getLocationImpl(options)
		}
	}, function (_doNotAskAgain:boolean,_grantedList:string[]) {
		console.log("用户拒绝了部分权限:")
		let ret = new UniError("uni-getLocation-tencent",-30,"permission missed.");
		options.fail?.(ret)
		options.complete?.(ret)
	})


}


/****************************************内部功能实现****************************************************/


/**
 * 定位监听结果包装类
 */
class LocationOptionsWapper {

	hostOption : GetLocationOptions;

	constructor(option : GetLocationOptions) {
		this.hostOption = option
	}

	onLocationChanged(location : TencentLocation, _error : Int,
		_reason : string) {

		let ret : GetLocationSuccess = {
			latitude: location.latitude,
			longitude: location.longitude,
			speed: 0,
			accuracy: location.accuracy,
			altitude: location.altitude,
			verticalAccuracy: 0,
			horizontalAccuracy: location.accuracy,
			address: location.address
		}

		this.hostOption.success?.(ret)
		// 包装数据结构返回
	}


	onStatusUpdate(_name : string, _status : Int, _desc : string) {
		// 定位状态发生变化
	}
};


/**
 * Tencent 定位监听实现类
 */
class SingleLocationListener extends TencentLocationListener {


	hostOptionWraper : LocationOptionsWapper;

	constructor(option : LocationOptionsWapper) {
		super();
		this.hostOptionWraper = option
	}

	override onLocationChanged(location : TencentLocation, error : Int,
		reason : string) : void {
		this.hostOptionWraper.onLocationChanged(location, error, reason);
	}

	override onStatusUpdate(name : string, status : Int, desc : string) : void {
		this.hostOptionWraper.onStatusUpdate(name, status, desc);
	}

}
/**
 * 判断当前的基座是否已经集成了sdk, 即是否是自定义基座
 */
function checkHasIntegration() : boolean {

	let hasIntegration = true
	try {
		let xClass = Class.forName("com.tencent.map.geolocation.TencentLocationListener")
	} catch (e : Exception) {
		hasIntegration = false;
	}

	if (!hasIntegration) {
		return false;
	}

	return true
}
/**
 * 检查定位的相关配置是否正确
 */
function checkLocationConfig() : boolean {

	let packageName = UTSAndroid.getAppContext()!.getPackageName();
	let appInfo = UTSAndroid.getAppContext()!.getPackageManager()!.getApplicationInfo(packageName, PackageManager.GET_META_DATA)

	let metaData = appInfo.metaData
	if (metaData == null) {
		return false;
	}
	let adId = metaData.getString("TencentMapSDK")
	if (adId == null) {
		return false;
	}
	let splitArray = adId!.split("-")
	let keyCharNum = splitArray.size

	if (keyCharNum > 5) {
		// 存在超过5个-，说明是符合规则的appkey
		return true;
	}
	// 不符合校验规则，打回
	return false;
}


/**
 * 腾讯地图获取定位信息
 * 参考文档:https://lbs.qq.com/mobile/androidLocationSDK/androidGeoGuide/androidGeoAdapt
 */
function getLocationImpl(locationOptions : GetLocationOptions) {
	
	if(locationOptions.type != null && locationOptions.type!.toUpperCase() != 'GCJ-02'  && locationOptions.type!.toUpperCase() != 'GCJ02'){
		// 腾讯定位只支持GCJ-02，如果不是则报错
		let ret = new UniError("uni-getLocation-tencent",-1,"GCJ-02 support only.");
		locationOptions.fail?.(ret)
		locationOptions.complete?.(ret)
		return
	}

	let mLocationManager = TencentLocationManager.getInstance(UTSAndroid.getAppContext());
	// 定位监听器封装
	let locationOptionWrapper = new LocationOptionsWapper(locationOptions);
	let mLocationListener = new SingleLocationListener(locationOptionWrapper);
	// 发起单次请求
	let locationRequest = TencentLocationRequest.create()
	// 是否需要逆地理编码
	if (locationOptions.geocode != null && locationOptions.geocode == true) {
		locationRequest.setRequestLevel(TencentLocationRequest.REQUEST_LEVEL_NAME);
	} else {
		locationRequest.setRequestLevel(TencentLocationRequest.REQUEST_LEVEL_GEO);
	}
	// 是否开启了高精度
	if (locationOptions.isHighAccuracy != null && locationOptions.isHighAccuracy == true) {
		locationRequest.setAllowGPS(true)
	} 
	/**
	 * 高度信息，腾讯没有明确的api设置
	 */
	if (locationOptions.altitude != null && locationOptions.altitude == true) {
		locationRequest.setAllowGPS(true)
	} 
	
	mLocationManager.requestSingleFreshLocation(locationRequest, mLocationListener, Looper.getMainLooper());

}