add CameraModel and CameraService for interacting with the camera

2023-09-19 13:33:41 -07:00
parent 7744787c51
commit 472f81b311
4 changed files with 859 additions and 0 deletions
@@ -0,0 +1,122 @@
+//
+//  CameraModel.swift
+//  damus
+//
+//  Created by Suhail Saqan on 8/5/23.
+//
+
+import Foundation
+import AVFoundation
+import Combine
+
+final class CameraModel: ObservableObject {
+    private let service = CameraService()
+
+    @Published var showAlertError = false
+
+    @Published var isFlashOn = false
+
+    @Published var willCapturePhoto = false
+
+    @Published var isCameraButtonDisabled = false
+
+    @Published var isPhotoProcessing = false
+
+    @Published var isRecording = false
+
+    @Published var captureMode: CameraMediaType = .image
+
+    @Published public var mediaItems: [MediaItem] = []
+
+    @Published var thumbnail: Thumbnail!
+
+    var alertError: AlertError!
+
+    var session: AVCaptureSession
+
+    private var subscriptions = Set<AnyCancellable>()
+
+    init() {
+        self.session = service.session
+
+        service.$shouldShowAlertView.sink { [weak self] (val) in
+            self?.alertError = self?.service.alertError
+            self?.showAlertError = val
+        }
+        .store(in: &self.subscriptions)
+
+        service.$flashMode.sink { [weak self] (mode) in
+            self?.isFlashOn = mode == .on
+        }
+        .store(in: &self.subscriptions)
+
+        service.$willCapturePhoto.sink { [weak self] (val) in
+            self?.willCapturePhoto = val
+        }
+        .store(in: &self.subscriptions)
+
+        service.$isCameraButtonDisabled.sink { [weak self] (val) in
+            self?.isCameraButtonDisabled = val
+        }
+        .store(in: &self.subscriptions)
+
+        service.$isPhotoProcessing.sink { [weak self] (val) in
+            self?.isPhotoProcessing = val
+        }
+        .store(in: &self.subscriptions)
+
+        service.$isRecording.sink { [weak self] (val) in
+            self?.isRecording = val
+        }
+        .store(in: &self.subscriptions)
+
+        service.$captureMode.sink { [weak self] (mode) in
+            self?.captureMode = mode
+        }
+        .store(in: &self.subscriptions)
+
+        service.$mediaItems.sink { [weak self] (mode) in
+            self?.mediaItems = mode
+        }
+        .store(in: &self.subscriptions)
+
+        service.$thumbnail.sink { [weak self] (thumbnail) in
+            guard let pic = thumbnail else { return }
+            self?.thumbnail = pic
+        }
+        .store(in: &self.subscriptions)
+    }
+
+    func configure() {
+        service.checkForPermissions()
+        service.configure()
+    }
+
+    func stop() {
+        service.stop()
+    }
+
+    func capturePhoto() {
+        service.capturePhoto()
+    }
+
+    func startRecording() {
+        service.startRecording()
+    }
+
+    func stopRecording() {
+        service.stopRecording()
+    }
+
+    func flipCamera() {
+        service.changeCamera()
+    }
+
+    func zoom(with factor: CGFloat) {
+        service.set(zoom: factor)
+    }
+
+    func switchFlash() {
+        service.flashMode = service.flashMode == .on ? .off : .on
+    }
+}