https://github.com/kiliankoe/emealkit

🎓 Studentenwerk Dresden
https://github.com/kiliankoe/emealkit

dresden emeal mensa studentenwerk studentenwerk-dresden

Last synced: 19 days ago
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🎓 Studentenwerk Dresden

• Host: GitHub
• URL: https://github.com/kiliankoe/emealkit
• Owner: kiliankoe
• License: mit
• Created: 2017-07-15T22:11:24.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2023-05-27T22:06:16.000Z (over 1 year ago)
• Last Synced: 2024-09-21T01:45:09.892Z (about 2 months ago)
• Topics: dresden, emeal, mensa, studentenwerk, studentenwerk-dresden
• Language: Swift
• Size: 203 KB
• Stars: 6
• Watchers: 3
• Forks: 0
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# 🌯 EmealKit

Swift library for accessing some of the meal related data the [Studentenwerk Dresden](http://www.studentenwerk-dresden.de/) has to offer.

## Quick Start

### Current meals or available canteens

```swift

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)

}

```

A completion block based API and one built on Combine are also available. 

### Cardservice

Talk to the [Cardservice](www.studentenwerk-dresden.de/mensen/kartenservice/) to acquire data about your Emeal card. You will need to have registered for Autoload to have the necessary authentication details.

```swift

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)

```

### NFC Scanning

EmealKit also handles scanning the Emeal card via NFC if your device supports it. Just create an `Emeal` object, conform to `EmealDelegate` and call `beginNFCSession`.

```swift

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.

    }

}

```

It's even easier if you use `ObservableEmeal` in your SwiftUI views. It could look something like this.

```swift

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")

            }

        }

    }

}

```

## Installation

EmealKit is available through Swift Package Manager.

```swift

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

```

## Used by

This library is currently being used in the following applications:

- [Mensa Dresden](https://github.com/kiliankoe/MensaDresden)

Know of any others? Please open a PR and add it to the list! 😊