import SwiftUI
import UIKit

/// Presents a share sheet with a vCard file so the user can add to Contacts.
/// App Clips cannot use CNContactStore; the share sheet's "Add to Contacts" option works instead.
struct ClipShareSheet: UIViewControllerRepresentable {
    let vCardData: String
    let onDismiss: (() -> Void)?

    init(vCardData: String, onDismiss: (() -> Void)? = nil) {
        self.vCardData = vCardData
        self.onDismiss = onDismiss
    }

    func makeUIViewController(context: Context) -> UIActivityViewController {
        let tempURL = FileManager.default.temporaryDirectory
            .appendingPathComponent("contact-\(UUID().uuidString).vcf")
        let data = Data(vCardData.utf8)
        try? data.write(to: tempURL)

        let controller = UIActivityViewController(
            activityItems: [tempURL],
            applicationActivities: nil
        )
        controller.completionWithItemsHandler = { _, _, _, _ in
            try? FileManager.default.removeItem(at: tempURL)
            onDismiss?()
        }
        return controller
    }

    func updateUIViewController(_ uiViewController: UIActivityViewController, context: Context) {}
}