let meals = try await Meal.for(canteen: .alteMensa, on: Date())
for meal in meals {
    print(meal.name)
}

let canteens = try await Canteen.all()
for canteen in canteens {
    print(canteen.name)
}

let cardservice = try await Cardservice.login(username: "1234567890", password: "hunter2")
let carddata = try await cardservice.carddata()
print(carddata)

let ninetyDaysAgo = Date().addingTimeInterval(-60 * 60 * 24 * 90)
let transactions = try await cardservice.transactions(begin: ninetyDaysAgo)
print(transactions)

class YourEmealHandler: EmealDelegate {
    let emeal: Emeal
  
    init() {
        let strings = LocalizedEmealStrings(/*...*/)
        emeal = Emeal(localizedStrings: strings)
        emeal.delegate = self
        
        // Call this to start the NFC session.
        emeal.beginNFCSession()
    }
  
    func readData(currentBalance: Double, lastTransaction: Double) {
        // Gets called on a successful scan.
    }
  
    func invalidate(with error: Error) {
        // Called on errors.
    }
}

struct MyView: View {
    @StateObject private var emeal = ObservableEmeal(localizedStrings: .init(/* ... */))
    
    var body: some View {
        VStack {
            Text("Balance: \(emeal.currentBalance ?? 0.0)")
            Text("Last Transaction: \(emeal.lastTransaction ?? 0.0)")
                
            if let error = emeal.error {
                Text(error.localizedDescription)
                    .foregroundColor(.red)
            }
            
            Button(action: emeal.beginNFCSession) {
                Text("Scan Emeal")
            }
        }
    }
}

.package(url: "https://github.com/kiliankoe/EmealKit.git", from: "<#latest#>")