How to set variables in a class in a structure that also uses variables from the class Swift - swift

Question

I'm trying to pull the variables from my class, SolutionAggregationViewController, and use them in my structure NewRatingView in place of the current state variables, currentRating, usualRating, and totalRatings. I also have a variable in SolutionAggregationViewController, userCurrentRating, which I want to write to Firebase using the structure of interactive 5 stars I've created in NewRatingView. I'm wondering how I need to have these two items communicate in that way.
struct NewRatingView: View {
var currentRatingTest = SolutionAggregationViewController()
var schools = ["North Avenue", "West Village", "Brittain"]
#State private var location = "West Village"
#State private var userCurrentRating: CGFloat = 0.0
#State private var userUsualRating: CGFloat = 0.0
#State private var isUserRatingCurrent = true
#State private var currentRating: CGFloat = 0
#State private var isUserRatingUsual = true
#State private var usualRating: CGFloat = 0
#State private var totalRatings: CGFloat = 1
var body: some View {
NavigationView{
ScrollView {
VStack(spacing: 16) {
Divider()
Text("Choose a dining location:")
.bold()
Picker("Choose a dining location:", selection: $location) {
ForEach(schools, id: \.self) {
Text($0)
}
}
Text("Current Rating")
.bold()
if self.isUserRatingCurrent {
VStack {
RatingsViewCurrent(onDidRateCurrent: self.userDidRateCurrent, ratingCurrent: self.$userCurrentRating)
.frame(width: .infinity, height: 100, alignment: .center)
}
} else {
VStack {
RatingsViewCurrent(ratingCurrent: self.$currentRating)
.frame(width: .infinity, height: 100, alignment: .center)
if userCurrentRating == 0.0 {
Button("Rate") {
self.isUserRatingCurrent = false
}
}
}
}
Text("Usual Rating")
.bold()
if self.isUserRatingUsual {
VStack {
RatingsViewUsual(onDidRateUsual: self.userDidRateUsual, ratingUsual: self.$userUsualRating)
.frame(width: .infinity, height: 100, alignment: .center)
Button("Submit Rating!") {
self.isUserRatingUsual = true
}
}
} else {
VStack {
RatingsViewUsual(ratingUsual: self.$usualRating)
.frame(width: .infinity, height: 100, alignment: .center)
if userUsualRating == 0.0 {
Button("Rate") {
self.isUserRatingUsual = false
}
}
}
}
}
}.navigationTitle("Add a Rating")
}
}
private func userDidRateCurrent(_ ratingCurrent: Int) {
// DispatchQueue.main.asyncAfter(deadline: .now() + 1.0, execute: { self.isUserRatingCurrent = false })
self.storeRatingInformation()
}
private func userDidRateUsual(_ ratingUsual: Int) {
self.storeRatingInformation()
}
private func storeRatingInformation() {
let id = location
print("StoredInformation")
let ratingData = ["location": location, "currentRating": currentRating, "usualRating": usualRating, "totalRatings": totalRatings] as [String : Any]
let db = Firestore.firestore()
db.collection("RatingInformation").document(id)
.setData(ratingData) { error in
if let error = error {
print(error)
return
}
}
print("RatingData: \(ratingData)")
}
}
class SolutionAggregationViewController: UIViewController {
var db: Firestore!
struct NewRating {
let id: String
let location: String
let currentRating: Float
let usualRating: Float
let totalRatings: Float
init(id: String, location: String, currentRating: Float, usualRating: Float, totalRatings: Float) {
self.id = id
self.location = location
self.currentRating = currentRating
self.usualRating = usualRating
self.totalRatings = totalRatings
}
}
let NewRating = NewRating(id: "West Village", location: "West Village", currentRating: 2.0, usualRating: 2.0, totalRatings: 4.0)
// [END restaurant_struct]
struct Rating {
let userCurrentRating: Float
}
override func viewDidLoad() {
super.viewDidLoad()
db = Firestore.firestore()
}
func addRatingTransaction(restaurantRef: DocumentReference, userCurrentRating: Float) {
let ratingRef: DocumentReference = restaurantRef.collection("RatingInformation").document()
db.runTransaction({ (transaction, errorPointer) -> Any? in
do {
let restaurantDocument = try transaction.getDocument(restaurantRef).data()
guard var restaurantData = restaurantDocument else { return nil }
// Compute new number of ratings
let numRatings = restaurantData["totalRatings"] as! Float
let newNumRatings = numRatings + 1
// Compute new average rating
let avgRating = restaurantData["currentRating"] as! Float
let oldRatingTotal = avgRating * Float(numRatings)
let newAvgRating = (oldRatingTotal + userCurrentRating) / Float(newNumRatings)
// Set new restaurant info
restaurantData["totalRatings"] = newNumRatings
restaurantData["currentRating"] = newAvgRating
// Commit to Firestore
transaction.setData(restaurantData, forDocument: restaurantRef)
transaction.setData(["userCurrentRating": userCurrentRating], forDocument: ratingRef)
} catch {
}
return nil
}) { (object, err) in
}
}
}