//
//  ProfileView.swift
//  Snail
//

import SwiftUI

struct ProfileView: View {
    @Environment(AuthStore.self) private var auth
    @Environment(\.dismiss) private var dismiss
    @State private var isConfirmingSignOut = false
    @State private var isSigningOut = false

    var body: some View {
        NavigationStack {
            List {
                if let user = auth.currentUser {
                    header(for: user)

                    Section("Аккаунт") {
                        LabeledContent("Электронная почта", value: user.email)
                        LabeledContent("Почта подтверждена", value: user.emailVerified ? String(localized: "Да") : String(localized: "Нет"))
                        LabeledContent("Дата регистрации", value: user.createdAt.formatted(date: .long, time: .omitted))
                    }
                }

                Section {
                    Button(role: .destructive) {
                        isConfirmingSignOut = true
                    } label: {
                        HStack {
                            Text("Выйти")
                            Spacer()
                            if isSigningOut {
                                ProgressView()
                            }
                        }
                    }
                    .disabled(isSigningOut)
                    .confirmationDialog("Выйти из аккаунта?", isPresented: $isConfirmingSignOut, titleVisibility: .visible) {
                        Button("Выйти", role: .destructive, action: signOut)
                    } message: {
                        Text("Чтобы войти снова, понадобится код из письма.")
                    }
                }
            }
            .navigationTitle("Профиль")
            .navigationBarTitleDisplayMode(.inline)
            .refreshable { await auth.refreshUser() }
            .toolbar {
                ToolbarItem(placement: .confirmationAction) {
                    Button("Готово") { dismiss() }
                }
            }
        }
    }

    private func header(for user: User) -> some View {
        Section {
            VStack(spacing: 12) {
                Text(user.initials)
                    .font(.title.weight(.semibold))
                    .foregroundStyle(.white)
                    .frame(width: 80, height: 80)
                    .background(Color.accentColor.gradient, in: .circle)
                    .accessibilityHidden(true)

                VStack(spacing: 4) {
                    Text(user.displayName)
                        .font(.title2.weight(.semibold))
                    if user.displayName != user.email {
                        Text(user.email)
                            .foregroundStyle(.secondary)
                    }
                }
                .multilineTextAlignment(.center)
            }
            .frame(maxWidth: .infinity)
            .listRowBackground(Color.clear)
            .accessibilityElement(children: .combine)
        }
    }

    private func signOut() {
        isSigningOut = true
        Task {
            await auth.signOut()
            isSigningOut = false
        }
    }
}

#Preview {
    ProfileView()
        .environment(AuthStore(state: .signedIn(User(
            id: "1",
            name: "Вадим",
            email: "vadim@example.com",
            emailVerified: true,
            image: nil,
            createdAt: .now
        ))))
}