import SwiftUI
import SecretKit

struct SecretDetailView<SecretType: Secret>: View {
    
    @State var secret: SecretType
    @EnvironmentObject private var settingsStore: SettingsStore

    private let keyWriter = OpenSSHKeyWriter()
    private let publicKeyFileStoreController = PublicKeyFileStoreController(homeDirectory: NSHomeDirectory().replacingOccurrences(of: Bundle.main.hostBundleID, with: Bundle.main.agentBundleID))
    
    var body: some View {
        ScrollView {
            Form {
                Section {
                    CopyableView(title: "secret_detail_sha256_fingerprint_label", image: Image(systemName: "touchid"), text: keyWriter.openSSHSHA256Fingerprint(secret: secret))
                    Spacer()
                        .frame(height: 20)
                    CopyableView(title: "secret_detail_md5_fingerprint_label", image: Image(systemName: "touchid"), text: keyWriter.openSSHMD5Fingerprint(secret: secret))
                    Spacer()
                        .frame(height: 20)
                    CopyableView(title: "secret_detail_public_key_label", image: Image(systemName: "key"), text: keyString)
                    Spacer()
                        .frame(height: 20)
                    CopyableView(title: "secret_detail_public_key_path_label", image: Image(systemName: "lock.doc"), text: publicKeyFileStoreController.publicKeyPath(for: secret))
                    Spacer()
                }
            }
            .padding()
        }
        .frame(minHeight: 200, maxHeight: .infinity)
    }

    var dashedKeyName: String {
             secret.name.replacingOccurrences(of: " ", with: "-")
    }
    
    var dashedHostName: String {
        ["secretive", Host.current().localizedName, "local"]
            .compactMap { $0 }
            .joined(separator: ".")
            .replacingOccurrences(of: " ", with: "-")
    }
    
    var keyString: String {
        var style: CommentStyle = CommentStyle(rawValue: settingsStore["com.maxgoedjen.Secretive.commentStyle"] ?? CommentStyle.keyAndHost.rawValue)!
        switch style {
        case .none:
            return keyWriter.openSSHString(secret: secret, comment: "")
        case .keyAndHost:
            return keyWriter.openSSHString(secret: secret, comment: "\(dashedKeyName)@\(dashedHostName)")
        }
    }
}

#if DEBUG

struct SecretDetailView_Previews: PreviewProvider {
    static var previews: some View {
        SecretDetailView(secret: Preview.Store(numberOfRandomSecrets: 1).secrets[0])
    }
}

#endif