Squashed 'vendor/ruvector/' content from commit b64c2172
git-subtree-dir: vendor/ruvector git-subtree-split: b64c21726f2bb37286d9ee36a7869fef60cc6900
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ruv
338
examples/app-clip/Sources/AppClip/AppClipView.swift
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338
examples/app-clip/Sources/AppClip/AppClipView.swift
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// AppClipView.swift — SwiftUI view for the RVF App Clip.
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//
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// Presents a QR scanner interface and displays decoded seed information.
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// Uses AVFoundation for camera access and the SeedDecoder for parsing.
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import SwiftUI
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import AVFoundation
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// MARK: - AppClipView
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/// Root view for the App Clip experience.
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///
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/// Flow: Scan QR -> Decode RVQS seed -> Display cognitive seed info.
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struct AppClipView: View {
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@StateObject private var viewModel = AppClipViewModel()
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var body: some View {
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NavigationStack {
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VStack(spacing: 0) {
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switch viewModel.state {
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case .scanning:
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scannerSection
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case .decoding:
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decodingSection
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case .decoded(let info):
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decodedSection(info)
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case .error(let message):
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errorSection(message)
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}
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}
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.navigationTitle("RVF Seed Scanner")
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.navigationBarTitleDisplayMode(.inline)
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}
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}
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// MARK: - Scanner
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private var scannerSection: some View {
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VStack(spacing: 24) {
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Spacer()
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// Camera preview placeholder.
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// In production, this would be a UIViewRepresentable wrapping
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// an AVCaptureVideoPreviewLayer for real-time QR scanning.
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ZStack {
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RoundedRectangle(cornerRadius: 16)
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.fill(Color.black.opacity(0.8))
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.frame(width: 280, height: 280)
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RoundedRectangle(cornerRadius: 12)
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.strokeBorder(Color.white.opacity(0.6), lineWidth: 2)
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.frame(width: 240, height: 240)
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VStack(spacing: 12) {
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Image(systemName: "qrcode.viewfinder")
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.font(.system(size: 48))
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.foregroundStyle(.white)
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Text("Point camera at QR seed")
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.font(.subheadline)
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.foregroundStyle(.white.opacity(0.8))
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}
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}
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Text("Scan a cognitive seed QR code to bootstrap intelligence.")
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.font(.footnote)
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.foregroundStyle(.secondary)
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.multilineTextAlignment(.center)
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.padding(.horizontal, 32)
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// Demo button for testing without a camera.
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Button {
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viewModel.decodeDemoSeed()
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} label: {
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Label("Use Demo Seed", systemImage: "doc.viewfinder")
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.font(.body.weight(.medium))
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}
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.buttonStyle(.borderedProminent)
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.tint(.blue)
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Spacer()
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}
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}
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// MARK: - Decoding
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private var decodingSection: some View {
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VStack(spacing: 16) {
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Spacer()
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ProgressView()
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.scaleEffect(1.5)
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Text("Decoding seed...")
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.font(.headline)
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.foregroundStyle(.secondary)
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Spacer()
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}
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}
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// MARK: - Decoded Result
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private func decodedSection(_ info: SeedInfo) -> some View {
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ScrollView {
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VStack(alignment: .leading, spacing: 16) {
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// Header card.
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GroupBox {
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VStack(alignment: .leading, spacing: 8) {
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Label("Cognitive Seed", systemImage: "brain")
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.font(.headline)
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Divider()
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infoRow("Version", value: "v\(info.version)")
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infoRow("Dimension", value: "\(info.dimension)")
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infoRow("Vectors", value: formatCount(info.totalVectorCount))
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infoRow("Seed Size", value: formatBytes(info.totalSeedSize))
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}
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}
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// Content hash.
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GroupBox {
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VStack(alignment: .leading, spacing: 8) {
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Label("Content Hash", systemImage: "number")
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.font(.headline)
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Divider()
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Text(info.contentHash)
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.font(.system(.caption, design: .monospaced))
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.foregroundStyle(.secondary)
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.textSelection(.enabled)
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}
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}
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// Manifest info.
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GroupBox {
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VStack(alignment: .leading, spacing: 8) {
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Label("Manifest", systemImage: "arrow.down.circle")
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.font(.headline)
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Divider()
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infoRow("Hosts", value: "\(info.hosts)")
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infoRow("Layers", value: "\(info.layers)")
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infoRow("Microkernel", value: info.hasMicrokernel ? "Yes" : "No")
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infoRow("Signed", value: info.isSigned ? "Yes" : "No")
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if let url = info.primaryHostURL {
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VStack(alignment: .leading, spacing: 4) {
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Text("Primary Host")
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.font(.caption)
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.foregroundStyle(.secondary)
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Text(url)
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.font(.system(.caption2, design: .monospaced))
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.foregroundStyle(.blue)
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.textSelection(.enabled)
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}
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}
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}
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}
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// Action buttons.
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Button {
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viewModel.reset()
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} label: {
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Label("Scan Another", systemImage: "qrcode.viewfinder")
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.frame(maxWidth: .infinity)
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}
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.buttonStyle(.borderedProminent)
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}
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.padding()
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}
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}
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// MARK: - Error
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private func errorSection(_ message: String) -> some View {
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VStack(spacing: 24) {
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Spacer()
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Image(systemName: "exclamationmark.triangle.fill")
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.font(.system(size: 48))
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.foregroundStyle(.red)
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Text("Decode Failed")
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.font(.title2.weight(.semibold))
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Text(message)
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.font(.body)
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.foregroundStyle(.secondary)
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.multilineTextAlignment(.center)
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.padding(.horizontal, 32)
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Button {
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viewModel.reset()
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} label: {
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Label("Try Again", systemImage: "arrow.counterclockwise")
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.font(.body.weight(.medium))
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}
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.buttonStyle(.borderedProminent)
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Spacer()
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}
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}
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// MARK: - Helpers
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private func infoRow(_ label: String, value: String) -> some View {
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HStack {
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Text(label)
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.font(.subheadline)
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.foregroundStyle(.secondary)
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Spacer()
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Text(value)
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.font(.subheadline.weight(.medium))
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}
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}
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private func formatCount(_ count: UInt32) -> String {
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if count >= 1_000_000 {
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return String(format: "%.1fM", Double(count) / 1_000_000.0)
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} else if count >= 1_000 {
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return String(format: "%.1fK", Double(count) / 1_000.0)
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}
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return "\(count)"
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}
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private func formatBytes(_ bytes: UInt32) -> String {
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if bytes >= 1024 {
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return String(format: "%.1f KB", Double(bytes) / 1024.0)
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}
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return "\(bytes) B"
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}
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}
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// MARK: - ViewModel
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/// View model driving the App Clip scan-decode flow.
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@MainActor
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final class AppClipViewModel: ObservableObject {
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enum State: Equatable {
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case scanning
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case decoding
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case decoded(SeedInfo)
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case error(String)
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}
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@Published var state: State = .scanning
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private let decoder = SeedDecoder()
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/// Handle raw QR payload bytes from the camera scanner.
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func handleScannedData(_ data: Data) {
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state = .decoding
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Task {
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do {
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let info = try decoder.decode(data: data)
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state = .decoded(info)
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} catch {
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state = .error(error.localizedDescription)
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}
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}
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}
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/// Decode a built-in demo seed for testing without a camera.
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func decodeDemoSeed() {
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// Construct a minimal valid RVQS header (64 bytes) for demonstration.
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// In production, this would come from a real QR scan.
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var payload = Data(count: 64)
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payload.withUnsafeMutableBytes { buf in
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let p = buf.baseAddress!.assumingMemoryBound(to: UInt8.self)
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// seed_magic = 0x52565153 ("RVQS") in little-endian.
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p[0] = 0x53; p[1] = 0x51; p[2] = 0x56; p[3] = 0x52
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// seed_version = 1.
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p[4] = 0x01; p[5] = 0x00
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// flags = 0 (minimal).
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p[6] = 0x00; p[7] = 0x00
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// file_id = 8 bytes.
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for i in 8..<16 { p[i] = UInt8(i) }
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// total_vector_count = 1000 (little-endian).
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p[0x10] = 0xE8; p[0x11] = 0x03; p[0x12] = 0x00; p[0x13] = 0x00
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// dimension = 128.
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p[0x14] = 0x80; p[0x15] = 0x00
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// base_dtype = 0, profile_id = 0.
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p[0x16] = 0x00; p[0x17] = 0x00
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// created_ns = 0 (8 bytes, already zero).
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// microkernel_offset = 64, microkernel_size = 0.
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p[0x20] = 0x40; p[0x21] = 0x00; p[0x22] = 0x00; p[0x23] = 0x00
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// download_manifest_offset = 64, download_manifest_size = 0.
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p[0x28] = 0x40; p[0x29] = 0x00; p[0x2A] = 0x00; p[0x2B] = 0x00
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// sig_algo = 0, sig_length = 0.
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// total_seed_size = 64.
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p[0x34] = 0x40; p[0x35] = 0x00; p[0x36] = 0x00; p[0x37] = 0x00
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// content_hash = 8 bytes of 0xAB.
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for i in 0x38..<0x40 { p[i] = 0xAB }
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}
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handleScannedData(payload)
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}
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/// Reset to scanning state.
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func reset() {
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state = .scanning
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}
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}
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// MARK: - QR Scanner Coordinator (AVFoundation placeholder)
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/// Coordinator for camera-based QR code scanning.
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///
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/// In a full implementation, this would wrap AVCaptureSession with a
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/// metadata output delegate to detect QR codes in real-time.
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/// Kept as a placeholder to show the integration pattern.
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#if canImport(AVFoundation)
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final class QRScannerCoordinator: NSObject, AVCaptureMetadataOutputObjectsDelegate {
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var onSeedScanned: ((Data) -> Void)?
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func metadataOutput(
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_ output: AVCaptureMetadataOutput,
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didOutput metadataObjects: [AVMetadataObject],
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from connection: AVCaptureConnection
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) {
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guard let readable = metadataObjects.first as? AVMetadataMachineReadableCodeObject,
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readable.type == .qr,
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let stringValue = readable.stringValue,
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let data = stringValue.data(using: .utf8)
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else {
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return
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}
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// In production, the QR code would contain raw binary data.
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// For App Clips invoked via URL, the seed bytes would be
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// fetched from the URL's associated payload.
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onSeedScanned?(data)
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}
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}
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#endif
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