user creation form field validation

PadelClub/Extensions/String+Extensions.swift

@@ -32,6 +32,13 @@ extension String {
     var removingFirstCharacter: String {
         String(dropFirst())
     }
+    
+    func isValidEmail() -> Bool {
+        let emailRegEx = "^[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,64}$"
+        let emailPredicate = NSPredicate(format:"SELF MATCHES %@", emailRegEx)
+        return emailPredicate.evaluate(with: self)
+    }
+    
 }
 
 // MARK: - Club Name

PadelClub/Views/User/LoginView.swift

@@ -77,7 +77,7 @@ struct LoginView: View {
             }
             
         }
-        .navigationTitle("Login")
+        .navigationTitle("Connexion")
         .onAppear {
             #if DEBUG
             if let username = PListReader.readString(plist: "local", key: "username") {

PadelClub/Views/User/UserCreationView.swift

@@ -21,7 +21,13 @@ struct UserCreationFormView: View {
     @State var lastName: String = ""
     @State var phone: String = ""
     
-    @State var showUnmatchingPasswordView = false
+    @State var showAlertView = false
+    @State var alertMessage: String = "" {
+        didSet {
+            self.showAlertView = true
+        }
+    }
+    
     @State var selectedCountryIndex = 0
 
     @State var dataCollectAuthorized: Bool = false
@@ -41,7 +47,6 @@ struct UserCreationFormView: View {
                 TextField("Email", text: self.$email)
                     .keyboardType(.emailAddress)
                     .textInputAutocapitalization(.never)
-
             }
             
             Section {
@@ -87,7 +92,7 @@ struct UserCreationFormView: View {
         .onAppear {
             self._selectCountry()
         }
-        .alert("Les mots de passe ne correspondent pas", isPresented: self.$showUnmatchingPasswordView, actions: {
+        .alert(self.alertMessage, isPresented: self.$showAlertView, actions: {
             Button("Ok", action: {})
         } )
     }
@@ -104,7 +109,27 @@ struct UserCreationFormView: View {
     fileprivate func _create() {
         
         guard self.password1 == self.password2 else {
-            self.showUnmatchingPasswordView = true
+            self.alertMessage = "Les mots de passe ne correspondent pas"
+            return
+        }
+        
+        guard username.count > 2 else {
+            self.alertMessage = "Veuillez renseigner au moins 3 caractères pour votre nom d'utilisateur"
+            return
+        }
+        
+        guard self.email.isValidEmail() else {
+            self.alertMessage = "L'adresse email n'est pas valide"
+            return
+        }
+        
+        guard firstName.count > 0 else {
+            self.alertMessage = "Votre prénom ne peut pas être vide"
+            return
+        }
+        
+        guard lastName.count > 0 else {
+            self.alertMessage = "Votre nom ne peut pas être vide"
             return
         }