//
//  LoginView.swift
//  PadelClub
//
//  Created by Laurent Morvillier on 19/02/2024.
//

import SwiftUI
import LeStorage

struct LoginView: View {
    
    @EnvironmentObject var dataStore: DataStore

    @State var username: String = "razmig"
    @State var password: String = "StaxKikoo12"
    
    @State var showEmailPopup: Bool = false

    @State var error: Error? = nil
    
    var handler: (User) -> ()
    
    var body: some View {
        
        Form {
            
            TextField("Username", text: self.$username)
                .autocorrectionDisabled()
                .textInputAutocapitalization(.never)
            SecureField("Password", text: self.$password)
            
            Section {
                Button(action: {
                    self._login()
                }, label: {
                    Text("Login")
                })
                .frame(maxWidth: .infinity)
            }
            
            Section {
                NavigationLink("Sign up") {
                    UserCreationView()
                }
                Button(action: {
                    self.showEmailPopup = true
                }, label: {
                    Text("Forgotten password")
                })
                .alert(
                    Text("Password reset"),
                    isPresented: self.$showEmailPopup
                ) {
                    EmailConfirmationView()
                } message: {
                   Text("Please enter your email")
                }
            }
            
        }
        .navigationTitle("Login")
    }
    
    fileprivate func _login() {
        guard let service = Store.main.service else {
            return
        }
        Task {
            do {
                let user: User = try await service.login(
                    username: self.username,
                    password: self.password)
                self.dataStore.setUser(user)
                self.handler(user)
            } catch {
                Logger.error(error)
            }
        }
    }
    
}

struct EmailConfirmationView: View {
    
    @State var email: String = ""
    
    var body: some View {
        VStack {
            TextField("Email", text: self.$email)
                .keyboardType(.emailAddress)
            Button {
                self._forgottenPassword()
            } label: {
                Text("Send email")
            }

        }
    }
    
    fileprivate func _forgottenPassword() {
        
        Task {
            do {
                try await Store.main.service?.forgotPassword(email: self.email)
            } catch {
                Logger.error(error)
            }
        }
    }
    
}

#Preview {
    NavigationStack {
        LoginView(handler: { _ in })
    }
}

#Preview {
    EmailConfirmationView()
}