Visual Intelligence Camera Analysis

import SwiftUI
import VisualIntelligence
import AVFoundation
import CoreImage

@available(iOS 27, *)
struct LiveSceneAnalyzerView: View {
    @State private var analysisResults: [VIEntity] = []
    @State private var isAnalyzing = false
    @State private var errorMessage: String?

    // Simulated captured image for demo purposes
    private let sampleImage: CIImage = CIImage(
        color: CIColor(red: 0.5, green: 0.5, blue: 0.5)
    ).cropped(to: CGRect(x: 0, y: 0, width: 640, height: 480))

    var body: some View {
        NavigationStack {
            VStack(spacing: 16) {
                if isAnalyzing {
                    ProgressView("Analyzing scene…")
                } else if analysisResults.isEmpty {
                    ContentUnavailableView(
                        "No Results",
                        systemImage: "camera.viewfinder",
                        description: Text("Tap Analyze to run Visual Intelligence.")
                    )
                } else {
                    List(analysisResults, id: \.identifier) { entity in
                        VStack(alignment: .leading, spacing: 4) {
                            Text(entity.label)
                                .font(.headline)
                            Text(entity.type.localizedDescription)
                                .font(.caption)
                                .foregroundStyle(.secondary)
                            if let confidence = entity.confidence {
                                ProgressView(value: confidence)
                                    .tint(.blue)
                            }
                        }
                        .padding(.vertical, 4)
                    }
                }

                if let errorMessage {
                    Text(errorMessage)
                        .foregroundStyle(.red)
                        .font(.caption)
                }

                Button("Analyze Scene") {
                    Task { await analyzeImage(sampleImage) }
                }
                .buttonStyle(.borderedProminent)
                .disabled(isAnalyzing)
            }
            .navigationTitle("Visual Intelligence")
        }
    }

    @MainActor
    private func analyzeImage(_ ciImage: CIImage) async {
        isAnalyzing = true
        errorMessage = nil
        defer { isAnalyzing = false }

        do {
            let analyzer = VIAnalyzer()
            let request = VIAnalysisRequest(
                image: ciImage,
                intents: [.objectRecognition, .textRecognition, .landmarkIdentification]
            )
            let response = try await analyzer.analyze(request)
            analysisResults = response.entities
        } catch {
            errorMessage = error.localizedDescription
        }
    }
}

#Preview {
    if #available(iOS 27, *) {
        LiveSceneAnalyzerView()
    }
}