cm_services/Sources/App/Controllers/GlobalFunctions/EncryptionController.swift

//
//  File.swift
//  
//
//  Created by Michiel Carman on 4/2/24.
//

import Foundation
import Vapor
import Crypto

enum CryptoError: Error{
    case badRequest
}

struct CustomCrypto{
    public static func DecryptString(input: String) throws -> String{
        let apikey = Environment.get("API_KEY")
        let base64Key = apikey! // Replace with your actual key
                guard let keyData = Data(base64Encoded: base64Key) else {
                    fatalError("Invalid Base64 key data")
                }
        let data = Data(base64Encoded: input)
        let encryptionKey = SymmetricKey(data: keyData)
        let sealedBox = try! AES.GCM.SealedBox(combined: data!)
        let decryptedData = try! AES.GCM.open(sealedBox, using: encryptionKey)
        guard let decryptedString = String(data: decryptedData, encoding: .utf8) else{
            throw CryptoError.badRequest
        }
        return decryptedString
    }
}