Added networking functionality for login

Comedores Sociales.xcodeproj/project.pbxproj

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 		356533C42544B1FF00F2F0DE /* RegisterView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 356533C32544B1FF00F2F0DE /* RegisterView.swift */; };
+		358E94702558AC130074E928 /* NetworkingModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 358E946F2558AC130074E928 /* NetworkingModel.swift */; };
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 		356533B82544A1AF00F2F0DE /* LoginView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LoginView.swift; sourceTree = "<group>"; };
 		356533C32544B1FF00F2F0DE /* RegisterView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RegisterView.swift; sourceTree = "<group>"; };
+		358E946F2558AC130074E928 /* NetworkingModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NetworkingModel.swift; sourceTree = "<group>"; };
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 /* Begin PBXFrameworksBuildPhase section */
 				3565338425449C3600F2F0DE /* ContentView.swift */,
 				356533B82544A1AF00F2F0DE /* LoginView.swift */,
 				356533C32544B1FF00F2F0DE /* RegisterView.swift */,
+				358E946F2558AC130074E928 /* NetworkingModel.swift */,
 				3565338625449C3800F2F0DE /* Assets.xcassets */,
 				3565338B25449C3800F2F0DE /* Persistence.swift */,
 				3565339025449C3800F2F0DE /* Info.plist */,
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				358E94702558AC130074E928 /* NetworkingModel.swift in Sources */,
 				356533B92544A1AF00F2F0DE /* LoginView.swift in Sources */,
 				3565338C25449C3800F2F0DE /* Persistence.swift in Sources */,
 				3565338525449C3600F2F0DE /* ContentView.swift in Sources */,

Comedores Sociales/ContentView.swift

 import CoreData
 
 let lightGreyColor = Color(red: 239.0/255.0, green: 243.0/255.0, blue: 244.0/255.0, opacity: 1.0)
+let darkGreyColor = Color(red: 41.0/255.0, green: 42.0/255.0, blue: 47.0/255.0, opacity: 1.0)
+
 
 struct ContentView: View {
     @Environment(\.managedObjectContext) private var viewContext

Comedores Sociales/LoginView.swift

 
 import SwiftUI
 
+class LoginViewModel: ObservableObject {
+    @Published var response: Bool?
+    
+    func changeResponse(response: Bool) {
+        self.response = response
+    }
+    
+    func login(data: Authentication) {
+        
+        let service = "login.php"
+        guard let encodedData = try? JSONEncoder().encode(data)
+        else {
+            print("Failed to encode login request")
+            return
+        }
+        
+        //print("JSON to send:", String(data: encodedData, encoding: .utf8)!)
+        
+        let url = URL(string: serverAddress + service)!
+        var request = URLRequest(url: url)
+        request.setValue("applogin/json", forHTTPHeaderField: "Content-Type")
+        request.httpMethod = "POST"
+        request.httpBody = encodedData
+        
+        URLSession.shared.dataTask(with: request) {data, response, error in
+            
+            //handle result here
+            guard let data = data
+            else {
+                print("No data in response: \(error?.localizedDescription ?? "Unknown error").")
+                return
+            }
+            print(response ?? "No response")
+            print("Recieved data:", data)
+            print(error ?? "No error")
+            
+            if let httpResponse = response as? HTTPURLResponse {
+                DispatchQueue.main.async {
+                    if httpResponse.statusCode == 200 {
+                        self.changeResponse(response: true)
+                    } else {
+                        self.changeResponse(response: false)
+                    }
+                    
+                }
+            }
+            
+        }.resume()
+    }
+}
+
 struct LoginView: View {
     @State var email: String = ""
     @State var password: String = ""
     @State var showingRegister: Bool = false
     
+    @ObservedObject var loginVM = LoginViewModel()
+    
     var body: some View {
         VStack {
             WelcomeImage()
             WelcomeText()
             
-            TextField("Email", text: $email)
-                .autocapitalization(.none)
-                .padding()
-                .background(lightGreyColor)
-                .cornerRadius(5.0)
-                .padding(.bottom, 5)
-            SecureField("Password", text: $password)
-                .autocapitalization(.none)
-                .padding()
-                .background(lightGreyColor)
-                .cornerRadius(5.0)
-                .padding(.bottom, 20)
+            EmailField(email: $email)
+            PasswordField(password: $password)
+            
+            if self.loginVM.response == false {
+                Text("Information incorrect, please try again")
+                    .offset(y: -10)
+                    .foregroundColor(.red)
+            } else if self.loginVM.response == true {
+                Text("Login successful 🎉")
+                    .offset(y: -10)
+                    .foregroundColor(.green)
+            }
             
-            Button(action: {print("login tapped")}) {
+            Button(action: {
+                    self.loginVM.login(data: Authentication(email: email, password: password))
+                
+            }) {
                 LoginText()
             }
             
             Button(action: {self.showingRegister.toggle()}) {
                 RegisterText()
-            }.sheet(isPresented: $showingRegister, content: {
-                RegisterView()
-            })
-            
+            }
+            .sheet(isPresented: $showingRegister, content: {RegisterView()})
         }
         .padding()
     }
             .cornerRadius(5)
     }
 }
+
+struct EmailField: View {
+    @Binding var email: String
+    @Environment(\.colorScheme) var colorScheme
+    var body: some View {
+        TextField("Email", text: $email)
+            .autocapitalization(.none)
+            .padding()
+            .background(colorScheme == .dark ? darkGreyColor : lightGreyColor)
+            .cornerRadius(5.0)
+            .padding(.bottom, 5)
+    }
+}
+
+struct PasswordField: View {
+    @Binding var password: String
+    @Environment(\.colorScheme) var colorScheme
+    var body: some View {
+        SecureField("Password", text: $password)
+            .autocapitalization(.none)
+            .padding()
+            .background(colorScheme == .dark ? darkGreyColor : lightGreyColor)
+            .cornerRadius(5.0)
+            .padding(.bottom, 20)
+    }
+}

Comedores Sociales/NetworkingModel.swift

+//
+//  DataModel.swift
+//  Comedores Sociales
+//
+//  Created by Hector Carrion on 11/8/20.
+//
+
+import Foundation
+
+let serverAddress: String = "http://161.35.60.201/"
+
+class Authentication: Codable {
+    var username: String
+    var password: String
+    
+    init(email: String, password: String) {
+        self.username = email
+        self.password = password
+    }
+}

Comedores Sociales/RegisterView.swift

     @State var phoneNumber: String = ""
     @State var email: String = ""
     @State var password: String = ""
+    @Environment(\.colorScheme) var colorScheme
     
     var body: some View {
         VStack {
             
             TextField("First Name", text: $firstName)
                 .padding()
-                .background(lightGreyColor)
+                .background(colorScheme == .dark ? darkGreyColor : lightGreyColor)
                 .cornerRadius(5.0)
                 .padding(.bottom, 5)
             TextField("Last Name", text: $lastName)
                 .padding()
-                .background(lightGreyColor)
+                .background(colorScheme == .dark ? darkGreyColor : lightGreyColor)
                 .cornerRadius(5.0)
                 .padding(.bottom, 5)
             TextField("Phone Number", text: $phoneNumber)
                 .keyboardType(.numberPad)
                 .padding()
-                .background(lightGreyColor)
+                .background(colorScheme == .dark ? darkGreyColor : lightGreyColor)
                 .cornerRadius(5.0)
                 .padding(.bottom, 5)
             TextField("Email", text: $email)
                 .autocapitalization(.none)
                 .padding()
-                .background(lightGreyColor)
+                .background(colorScheme == .dark ? darkGreyColor : lightGreyColor)
                 .cornerRadius(5.0)
                 .padding(.bottom, 5)
             SecureField("Password", text: $password)
                 .autocapitalization(.none)
                 .padding()
-                .background(lightGreyColor)
+                .background(colorScheme == .dark ? darkGreyColor : lightGreyColor)
                 .cornerRadius(5.0)
                 .padding(.bottom, 20)