feat: ios mobil arayüz tasarımı

ios/Bookibra/Views/AddBooks/BarcodeScannerView.swift

@@ -0,0 +1,154 @@
+import SwiftUI
+import AVFoundation
+import VisionKit
+
+struct BarcodeScannerView: View {
+    let onScanned: (String) -> Void
+
+    var body: some View {
+        Group {
+            if DataScannerViewController.isSupported, DataScannerViewController.isAvailable {
+                DataScannerRepresentable(onScanned: onScanned)
+            } else {
+                AVScannerRepresentable(onScanned: onScanned)
+            }
+        }
+        .overlay {
+            RoundedRectangle(cornerRadius: 16)
+                .stroke(Color.white.opacity(0.75), lineWidth: 2)
+        }
+        .accessibilityLabel("ISBN barkod tarayıcı")
+    }
+}
+
+@available(iOS 16.0, *)
+private struct DataScannerRepresentable: UIViewControllerRepresentable {
+    let onScanned: (String) -> Void
+
+    func makeCoordinator() -> Coordinator { Coordinator(onScanned: onScanned) }
+
+    func makeUIViewController(context: Context) -> DataScannerViewController {
+        let vc = DataScannerViewController(
+            recognizedDataTypes: [.barcode(symbologies: [.ean8, .ean13, .upce, .code128])],
+            qualityLevel: .balanced,
+            recognizesMultipleItems: false,
+            isHighFrameRateTrackingEnabled: true,
+            isPinchToZoomEnabled: true,
+            isGuidanceEnabled: true,
+            isHighlightingEnabled: true
+        )
+        vc.delegate = context.coordinator
+        try? vc.startScanning()
+        return vc
+    }
+
+    func updateUIViewController(_ uiViewController: DataScannerViewController, context: Context) {}
+
+    final class Coordinator: NSObject, DataScannerViewControllerDelegate {
+        let onScanned: (String) -> Void
+        private var lastISBN: String?
+        private var lastEmitAt: Date = .distantPast
+
+        init(onScanned: @escaping (String) -> Void) {
+            self.onScanned = onScanned
+        }
+
+        func dataScanner(_ dataScanner: DataScannerViewController, didTapOn item: RecognizedItem) {
+            guard case .barcode(let code) = item,
+                  let payload = code.payloadStringValue,
+                  let normalized = ISBNNormalizer.normalize(payload) else { return }
+            emitIfNeeded(normalized)
+        }
+
+        func dataScanner(_ dataScanner: DataScannerViewController, didAdd addedItems: [RecognizedItem], allItems: [RecognizedItem]) {
+            guard let first = addedItems.first,
+                  case .barcode(let code) = first,
+                  let payload = code.payloadStringValue,
+                  let normalized = ISBNNormalizer.normalize(payload) else { return }
+            emitIfNeeded(normalized)
+        }
+
+        private func emitIfNeeded(_ isbn: String) {
+            let now = Date()
+            if lastISBN == isbn, now.timeIntervalSince(lastEmitAt) < 1.5 {
+                return
+            }
+            lastISBN = isbn
+            lastEmitAt = now
+            onScanned(isbn)
+        }
+    }
+}
+
+private struct AVScannerRepresentable: UIViewRepresentable {
+    let onScanned: (String) -> Void
+
+    func makeUIView(context: Context) -> ScannerPreviewView {
+        let view = ScannerPreviewView()
+        context.coordinator.configure(preview: view)
+        return view
+    }
+
+    func updateUIView(_ uiView: ScannerPreviewView, context: Context) {}
+
+    func makeCoordinator() -> Coordinator { Coordinator(onScanned: onScanned) }
+
+    final class Coordinator: NSObject, AVCaptureMetadataOutputObjectsDelegate {
+        private let session = AVCaptureSession()
+        private let sessionQueue = DispatchQueue(label: "bookibra.av.capture.session")
+        private let onScanned: (String) -> Void
+        private var lastISBN: String?
+        private var lastEmitAt: Date = .distantPast
+
+        init(onScanned: @escaping (String) -> Void) {
+            self.onScanned = onScanned
+        }
+
+        func configure(preview: ScannerPreviewView) {
+            guard let device = AVCaptureDevice.default(for: .video),
+                  let input = try? AVCaptureDeviceInput(device: device) else { return }
+
+            if session.canAddInput(input) { session.addInput(input) }
+
+            let output = AVCaptureMetadataOutput()
+            if session.canAddOutput(output) {
+                session.addOutput(output)
+                output.setMetadataObjectsDelegate(self, queue: .main)
+                output.metadataObjectTypes = [.ean8, .ean13, .upce, .code128]
+            }
+
+            preview.previewLayer.session = session
+            preview.previewLayer.videoGravity = .resizeAspectFill
+            sessionQueue.async { [session] in
+                session.startRunning()
+            }
+        }
+
+        func metadataOutput(_ output: AVCaptureMetadataOutput, didOutput metadataObjects: [AVMetadataObject], from connection: AVCaptureConnection) {
+            guard let code = metadataObjects.compactMap({ $0 as? AVMetadataMachineReadableCodeObject }).first,
+                  let value = code.stringValue,
+                  let normalized = ISBNNormalizer.normalize(value) else { return }
+            let now = Date()
+            if lastISBN == normalized, now.timeIntervalSince(lastEmitAt) < 1.5 {
+                return
+            }
+            lastISBN = normalized
+            lastEmitAt = now
+            onScanned(normalized)
+        }
+    }
+}
+
+private final class ScannerPreviewView: UIView {
+    override class var layerClass: AnyClass { AVCaptureVideoPreviewLayer.self }
+    var previewLayer: AVCaptureVideoPreviewLayer { layer as! AVCaptureVideoPreviewLayer }
+}
+
+enum ISBNNormalizer {
+    static func normalize(_ value: String) -> String? {
+        let cleaned = value.uppercased().filter { $0.isNumber || $0 == "X" }
+        if cleaned.count == 13 { return cleaned }
+        if cleaned.count == 10 { return cleaned }
+        return nil
+    }
+}