//
//  NavigationVC.swift
//  QuickLocation
//
//  Created by 八条 on 2026/6/16.
//

import UIKit
import RxSwift
import RxCocoa
import CoreLocation
#if !targetEnvironment(simulator)
import AMapNaviKit
import MapKit
#endif

class NavigationVC: BaseViewController {

    override var isNavigationBarHidden: Bool { true }

    fileprivate var rootView: NavigationView!
    private let member: CircleMember
    private let currentUserCoord: CLLocationCoordinate2D?
    private let groupName: String
    private let groupIconIndex: String

    #if !targetEnvironment(simulator)
    private var routeOverlay: MAPolyline?
    #endif

    init(member: CircleMember, currentUserCoord: CLLocationCoordinate2D?, groupName: String = "", groupIcon: String = "") {
        self.member = member
        self.currentUserCoord = currentUserCoord
        self.groupName = groupName
        self.groupIconIndex = groupIcon
        super.init(nibName: nil, bundle: nil)
    }

    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }

    override func loadView() {
        rootView = NavigationView(frame: UIScreen.main.bounds)
        view = rootView
    }

    override func viewDidLoad() {
        super.viewDidLoad()
        rootView.configure(member: member, groupName: groupName, groupIcon: groupIconIndex)
        reactiveAction()
        setupMap()
        calculateDistance()
        requestRoute()
    }
    
    // MARK: - Actions
    private func reactiveAction() {
        rootView.navigationBtn.rx.tap.subscribe(onNext: { _ in
            self.touchGoMap()
        }).disposed(by: disposeBag)
    }

    private func setupMap() {
        #if !targetEnvironment(simulator)
        rootView.mapView.delegate = self
        // 添加起点标注（当前用户位置）
        if let from = currentUserCoord, CLLocationCoordinate2DIsValid(from) {
            let startAnn = MAPointAnnotation()
            startAnn.coordinate = from
            startAnn.title = "起点"
            rootView.mapView.addAnnotation(startAnn)
        }
        #endif
    }

    private func requestRoute() {
        #if !targetEnvironment(simulator)
        guard let from = currentUserCoord,
              CLLocationCoordinate2DIsValid(from),
              CLLocationCoordinate2DIsValid(member.coordinate) else { return }

        let naviManager = AMapNaviDriveManager.sharedInstance()
        naviManager.delegate = self

        guard let startPoint = AMapNaviPoint.location(withLatitude: CGFloat(from.latitude), longitude: CGFloat(from.longitude)),
              let endPoint = AMapNaviPoint.location(withLatitude: CGFloat(member.coordinate.latitude), longitude: CGFloat(member.coordinate.longitude)) else { return }

        naviManager.calculateDriveRoute(withStart: [startPoint], end: [endPoint], wayPoints: nil, drivingStrategy: .drivingStrategySingleDefault)
        #endif
    }

    private func calculateDistance() {
        guard CLLocationCoordinate2DIsValid(member.coordinate) else { return }
        let memberLoc = CLLocation(latitude: member.coordinate.latitude, longitude: member.coordinate.longitude)
        guard let userLoc = currentUserCoord.map({ CLLocation(latitude: $0.latitude, longitude: $0.longitude) }) else {
            rootView.distanceLab.text = ""
            return
        }
        let dist = memberLoc.distance(from: userLoc)
        if dist < 1000 {
            rootView.distanceLab.text = "距离 \(Int(dist)) 米"
        } else {
            rootView.distanceLab.text = "距离 \(String(format: "%.1f", dist / 1000)) 公里"
        }
    }
    
    func touchGoMap() {
        let coortitle = "目的地"
        let latitute = member.coordinate.latitude
        let longitute = member.coordinate.longitude
        // "请选择导航应用程序"
        let alert = UIAlertController(title: "请选择导航应用程序", message: nil, preferredStyle: .actionSheet)
        
        if canOpenUrl("iosamap://") {//高德
            alert.addAction(UIAlertAction(title: "高德地图", style: .default, handler: { _ in
                self.amap(dlat: latitute, dlon: longitute, dname: coortitle, way: 0)
            }))
        }
        
        if canOpenUrl("baidumap://") {//百度
            alert.addAction(UIAlertAction(title: "百度地图", style: .default, handler: { _ in
                self.baidumap(endAddress: coortitle, way: "driving", lat: latitute,lng: longitute)
            }))
        }
        
        if canOpenUrl("qqmap://") {//腾讯
            alert.addAction(UIAlertAction(title: "腾讯地图", style: .default, handler: { _ in
                self.qqmap(endAddress: coortitle, way: "driving", lat: latitute,lng: longitute)
            }))
        }
        
        alert.addAction(UIAlertAction(title: "Apple 地图", style: .default, handler: { _ in
            self.appleMap(lat:latitute , lng:longitute, destination: coortitle)
        }))
        
        alert.addAction(UIAlertAction(title: "取消", style: .cancel, handler: nil))
        self.present(alert, animated: true, completion: nil)
    }
}

#if !targetEnvironment(simulator)
// MARK: - AMapNaviDriveManagerDelegate
extension NavigationVC: AMapNaviDriveManagerDelegate {
    func driveManager(onCalculateRouteSuccess driveManager: AMapNaviDriveManager) {
        guard let route = driveManager.naviRoute else { return }

        if let overlay = routeOverlay {
            rootView.mapView.remove(overlay)
        }

        let coords = route.routeCoordinates.compactMap { point -> CLLocationCoordinate2D in
            return CLLocationCoordinate2D(latitude: Double(point.latitude), longitude: Double(point.longitude))
        }.filter { CLLocationCoordinate2DIsValid($0) }

        guard coords.count > 1 else { return }

        var mutableCoords = coords
        if let polyline = MAPolyline(coordinates: &mutableCoords, count: UInt(coords.count)) {
            rootView.mapView.add(polyline)
            routeOverlay = polyline
            rootView.mapView.setVisibleMapRect(polyline.boundingMapRect, edgePadding: UIEdgeInsets(top: 80, left: 50, bottom: 260, right: 50), animated: true)
        }

        let distM = Int(route.routeLength)
        if distM < 1000 {
            rootView.distanceLab.text = "距离 \(distM) 米"
        } else {
            rootView.distanceLab.text = "距离 \(String(format: "%.1f", Double(distM) / 1000)) 公里"
        }

        let endAnn = MAPointAnnotation()
        endAnn.coordinate = member.coordinate
        endAnn.title = member.name
        rootView.mapView.addAnnotation(endAnn)
    }

    func driveManager(_ driveManager: AMapNaviDriveManager, onCalculateRouteFailure error: Error) {
        print("Navi route failed: \(error.localizedDescription)")
    }
}

// MARK: - MAMapViewDelegate
extension NavigationVC: MAMapViewDelegate {
    func mapView(_ mapView: MAMapView!, viewFor annotation: MAAnnotation!) -> MAAnnotationView! {
        if annotation is MAUserLocation { return nil }
        let identifier = "NavEnd"
        var view = mapView.dequeueReusableAnnotationView(withIdentifier: identifier)
        if view == nil {
            view = MAAnnotationView(annotation: annotation, reuseIdentifier: identifier)
        } else {
            view?.annotation = annotation
        }
        let isEnd = annotation.title == member.name
        view?.image = UIImage(named: isEnd ? "Map/end" : "Map/current")
        view?.centerOffset = CGPoint(x: 0, y: -22)
        return view
    }

    func mapView(_ mapView: MAMapView!, rendererFor overlay: MAOverlay!) -> MAOverlayRenderer! {
        if let polyline = overlay as? MAPolyline {
            let renderer = MAPolylineRenderer(polyline: polyline)
            renderer?.strokeColor = UIColor(hexStr: "34B824")
            renderer?.lineWidth = 6
            return renderer
        }
        return nil
    }
}
#endif


// MARK: - 地图导航
extension NavigationVC {
    // 打开苹果地图
    func appleMap(lat: Double, lng: Double, destination: String) {
        let loc = CLLocationCoordinate2DMake(lat, lng)
        let currentLocation = MKMapItem.forCurrentLocation()
        let toLocation = MKMapItem(placemark:MKPlacemark(coordinate:loc,addressDictionary:nil))
        toLocation.name = destination
        let boo = MKMapItem.openMaps(with: [currentLocation,toLocation], launchOptions: [MKLaunchOptionsDirectionsModeKey: MKLaunchOptionsDirectionsModeDriving,MKLaunchOptionsShowsTrafficKey: NSNumber(value: true)])
        print(boo)

    }

    // 打开高德地图
    func amap(dlat: Double, dlon: Double, dname: String, way: Int) {
        let appName = "极速定位"
        let urlString = "iosamap://path?sourceApplication=\(appName)&dname=\(dname)&dlat=\(dlat)&dlon=\(dlon)&t=\(way)" as String
        if self.openMap(urlString) == false {
            print("您还没有安装高德地图")
             let urlString = "itms-apps://itunes.apple.com/app/id452186370"
            self.openURL(urlString: urlString)
        }
    }

    // 打开腾讯地图
    func qqmap(endAddress: String, way: String, lat: Double, lng: Double) {

       let urlString = "qqmap://map/routeplan?type=\(way)&from=&fromcoord=CurrentLocation&to=\(endAddress)&tocoord=\(lat),\(lng)&referer=腾讯需要申请APPkey"
       let str = urlString as String
       
       if self.openMap(str) == false {
           print("您还没有安装腾讯地图")
        let urlString = "itms-apps://itunes.apple.com/app/id481623196"
        self.openURL(urlString: urlString)
       }
    }

    // 打开百度地图
    func baidumap(endAddress: String, way: String, lat: Double, lng: Double) {
        
        let coordinate = CLLocationCoordinate2DMake(lat, lng)
        
        // 将高德的经纬度转为百度的经纬度
        let baiduCoordinate = getBaiDuCoordinateByGaoDeCoordinate(coordinate: coordinate)
        
        let destination = "\(baiduCoordinate.latitude),\(baiduCoordinate.longitude)"
        
        let urlString = "baidumap://map/direction?" + "&destination=" + endAddress + "&mode=" + way + "&destination=" + destination
        
        let str = urlString as String
        
        if self.openMap(str) == false {
            print("您还没有安装百度地图")
            let urlString = "itms-apps://itunes.apple.com/app/id452186370" as String
            self.openURL(urlString: urlString)
        }
    }

    // 打开第三方地图
    private func openMap(_ urlString: String) -> Bool {
        let urlstr =   urlString.addingPercentEncoding(withAllowedCharacters: CharacterSet.urlQueryAllowed) ?? ""
        guard let url = URL(string: urlstr) else {
            return false
        }
        if UIApplication.shared.canOpenURL(url) == true {
            self.openURL(urlString: urlString as String)
            return true
        } else {
            return false
        }
    }

    func openURL(urlString:String) {
        let urlstr = urlString.addingPercentEncoding(withAllowedCharacters: CharacterSet.urlQueryAllowed) ?? ""
        
        guard let url = URL(string:urlstr) else {
            return
        }
        //根据iOS系统版本，分别处理
        if #available(iOS 10, *) {
            UIApplication.shared.open(url , options: [:],
                                      completionHandler: { (success) in
                
            })
        } else {
            UIApplication.shared.openURL(url )
        }
    }

    // 高德经纬度转为百度地图经纬度
    // 百度经纬度转为高德经纬度，减掉相应的值就可以了。
    func getBaiDuCoordinateByGaoDeCoordinate(coordinate:CLLocationCoordinate2D) -> CLLocationCoordinate2D {
        return CLLocationCoordinate2DMake(coordinate.latitude + 0.006, coordinate.longitude + 0.0065)
    }
    
    func canOpenUrl(_ urlString: String) -> Bool {
        guard let url = URL(string: urlString) else { return false }
        print("\(url) \(UIApplication.shared.canOpenURL(url))")
        return UIApplication.shared.canOpenURL(url)
    }
}