Plurk paste

//
// ViewController.swift
// iBeacon
//
// Created by nina on 2025/4/15. Updated by ChatGPT
//

import UIKit
import CoreLocation
import CoreMotion

class ViewController: UIViewController, CLLocationManagerDelegate {

// MARK: - IBOutlet
@IBOutlet weak var monitorResultTextView: UITextView!
@IBOutlet weak var rangingResultTextView: UITextView!
@IBOutlet weak var manualXField: UITextField!
@IBOutlet weak var manualYField: UITextField!
@IBOutlet weak var exportStatusLabel: UILabel!
@IBOutlet weak var positionStatusTextView: UITextView!
@IBOutlet weak var mapView: UIView! // 地圖底圖
var markerView: UIView = UIView() // 定位點

// MARK: - Beacon + Motion
var locationManager: CLLocationManager = CLLocationManager()
let motionManager = CMMotionManager()

let uuid = "77C99B62-88FC-4C78-B39C-D6FE06E76372"
let identifier = "esd region"
var region: CLBeaconRegion!
var beaconData: [[String: Any]] = []
var isCollecting = true

override func viewDidLoad() {
super.viewDidLoad()

locationManager.delegate = self
if CLLocationManager.isMonitoringAvailable(for: CLBeaconRegion.self) {
if #available(iOS 14, *) {
let currentStatus = locationManager.authorizationStatus
if currentStatus != .authorizedAlways {
locationManager.requestAlwaysAuthorization()
}
} else {
let currentStatus = CLLocationManager.authorizationStatus()
if currentStatus != .authorizedAlways {
locationManager.requestAlwaysAuthorization()
}
}
}

region = CLBeaconRegion(uuid: UUID(uuidString: uuid)!, identifier: identifier)
region.notifyEntryStateOnDisplay = true
region.notifyOnEntry = true
region.notifyOnExit = true
locationManager.startMonitoring(for: region)

if motionManager.isAccelerometerAvailable {
motionManager.startAccelerometerUpdates()
}
if motionManager.isGyroAvailable {
motionManager.startGyroUpdates()
}

// 初始化定位點視圖
markerView.frame = CGRect(x: 0, y: 0, width: 12, height: 12)
markerView.layer.cornerRadius = 6
markerView.backgroundColor = .systemRed
markerView.isHidden = true
mapView.addSubview(markerView)
}

// MARK: - CLLocationManagerDelegate
func locationManager(_ manager: CLLocationManager, didDetermineState state: CLRegionState, for region: CLRegion) {
switch state {
case .inside:
monitorResultTextView.text = "state inside\n" + monitorResultTextView.text
manager.startRangingBeacons(satisfying: CLBeaconIdentityConstraint(uuid: UUID(uuidString: uuid)!))
case .outside:
monitorResultTextView.text = "state outside\n" + monitorResultTextView.text
manager.stopRangingBeacons(satisfying: CLBeaconIdentityConstraint(uuid: UUID(uuidString: uuid)!))
default:
break
}
}

func locationManager(_ manager: CLLocationManager, didRangeBeacons beacons: [CLBeacon], in region: CLBeaconRegion) {
if !isCollecting { return }
rangingResultTextView.text = ""

let ordered = beacons.filter { $0.rssi != 0 }.sorted { $0.rssi > $1.rssi }
for beacon in ordered {
var proximityString = ""
switch beacon.proximity {
case .far: proximityString = "far"
case .near: proximityString = "near"
case .immediate: proximityString = "immediate"
default: proximityString = "unknown"
}

rangingResultTextView.text += """
Major: \(beacon.major) Minor: \(beacon.minor)
RSSI: \(beacon.rssi) Proximity: \(proximityString)
Accuracy: \(beacon.accuracy)

"""

let minor = beacon.minor.intValue
let major = beacon.major.intValue
let rssi = beacon.rssi
let (mode, estX, estY) = estimatePosition(major: major, minor: minor, rssi: rssi)
let manualX = Double(manualXField.text ?? "") ?? -1
let manualY = Double(manualYField.text ?? "") ?? -1
let timestamp = Date()

let acc = motionManager.accelerometerData
let gyro = motionManager.gyroData

let logLine = "\(timestamp) [\(mode)] → (x: \(estX), y: \(estY)) RSSI: \(rssi) M: \(major)-\(minor)\n"
positionStatusTextView.text = logLine + positionStatusTextView.text

updateMarker(x: estX, y: estY)

let record: [String: Any] = [
"timestamp": timestamp,
"uuid": beacon.uuid.uuidString,
"major": beacon.major,
"minor": beacon.minor,
"rssi": beacon.rssi,
"accuracy": beacon.accuracy,
"mode": mode,
"est_x": estX,
"est_y": estY,
"manual_x": manualX,
"manual_y": manualY,
"acc_x": acc?.acceleration.x ?? 0,
"acc_y": acc?.acceleration.y ?? 0,
"acc_z": acc?.acceleration.z ?? 0,
"gyro_x": gyro?.rotationRate.x ?? 0,
"gyro_y": gyro?.rotationRate.y ?? 0,
"gyro_z": gyro?.rotationRate.z ?? 0
]

beaconData.append(record)
}
}

func updateMarker(x: Double, y: Double) {
// 假設地圖比例：x = 0~20 對應畫面寬，y = 0~12 對應畫面高
let mapW = mapView.bounds.width
let mapH = mapView.bounds.height
let scaleX = mapW / 20.0
let scaleY = mapH / 12.0

let px = CGFloat(x) * scaleX
let py = mapH - CGFloat(y) * scaleY // y 軸反過來顯示

markerView.center = CGPoint(x: px, y: py)
markerView.isHidden = false
}

func estimatePosition(major: Int, minor: Int, rssi: Int) -> (String, Double, Double) {
if major == 1 {
let map: [Int: (Double, Double, String)] = [
1: (2.21, 0, "C"),
2: (4.3, 5.7, "B"),
3: (4.3, 7.8, "A"),
4: (2.64, 11.75, "A")
]
let val = map[minor] ?? (0, 0, "Unknown")
return ("區域 \(val.2)", val.0, val.1)
} else if major == 2 {
let posMap: [Int: (Double, Double)] = [
1: (0, 0), 2: (2.6, 2.67), 3: (5.71, 2.67), 4: (9.7, 2.67),
5: (13.5, 2.67), 6: (15.1, 0), 7: (16.9, 3.9), 8: (18.1, 0)
]
let power = -59.0
let distance = pow(10.0, (power - Double(rssi)) / 20.0)
let coord = posMap[minor] ?? (0, 0)
return ("座標推估", coord.0, coord.1)
}
return ("未知模式", 0, 0)
}

@IBAction func stopCollection(_ sender: Any) {
isCollecting = false
exportCSV()
}

func exportCSV() {
var csv = "timestamp,uuid,major,minor,rssi,accuracy,mode,est_x,est_y,manual_x,manual_y,acc_x,acc_y,acc_z,gyro_x,gyro_y,gyro_z\n"
for row in beaconData {
csv += "\(row["timestamp"]!),\(row["uuid"]!),\(row["major"]!),\(row["minor"]!),\(row["rssi"]!),\(row["accuracy"]!),\(row["mode"]!),\(row["est_x"]!),\(row["est_y"]!),\(row["manual_x"]!),\(row["manual_y"]!),\(row["acc_x"]!),\(row["acc_y"]!),\(row["acc_z"]!),\(row["gyro_x"]!),\(row["gyro_y"]!),\(row["gyro_z"]!)\n"
}

let fm = FileManager.default
let url = fm.urls(for: .documentDirectory, in: .userDomainMask)[0].appendingPathComponent("beacon_data.csv")
do {
try csv.write(to: url, atomically: true, encoding: .utf8)
exportStatusLabel.text = "✅ 匯出成功：\(url.lastPathComponent)"
shareCSV(at: url)
} catch {
exportStatusLabel.text = "❌ 匯出失敗"
}
}

func shareCSV(at url: URL) {
let activityVC = UIActivityViewController(activityItems: [url], applicationActivities: nil)
activityVC.popoverPresentationController?.sourceView = self.view
present(activityVC, animated: true)
}
}