import SwiftUI

struct EditProfileView: View {
    @Environment(\.dismiss) private var dismiss
    @State private var viewModel = EditProfileViewModel()

    var body: some View {
        NavigationStack {
            Form {
                Section("Identity") {
                    field("Nick", placeholder: "@username", text: $viewModel.nick)
                    field("Name / Title", placeholder: "My Feed", text: $viewModel.title)
                    field("Bio", placeholder: "A short description", text: $viewModel.description)
                }

                Section("Appearance") {
                    field("Avatar URL", placeholder: "https://example.com/avatar.jpg", text: $viewModel.avatar)
                }

                Section("Info") {
                    field("Location", placeholder: "City, Country", text: $viewModel.location)
                    field("Birthday", placeholder: "YYYY-MM-DD", text: $viewModel.birthday)
                    field("Languages", placeholder: "en es", text: $viewModel.language)
                }

                Section {
                    TextEditor(text: $viewModel.linksText)
                        .frame(minHeight: 60)
                } header: {
                    Text("Links (one URL per line)")
                }

                Section {
                    TextEditor(text: $viewModel.contactsText)
                        .frame(minHeight: 60)
                } header: {
                    Text("Contacts (one per line, e.g. mailto:)")
                }

                if let error = viewModel.errorMessage {
                    Section {
                        Label(error, systemImage: "exclamationmark.triangle.fill")
                            .foregroundStyle(.red).font(.subheadline)
                    }
                }
            }
            .navigationTitle("Edit Profile")
            .navigationBarTitleDisplayMode(.inline)
            .task { await viewModel.load() }
            .toolbar {
                ToolbarItem(placement: .cancellationAction) {
                    Button("Cancel") { dismiss() }
                }
                ToolbarItem(placement: .confirmationAction) {
                    if viewModel.isSaving {
                        ProgressView()
                    } else {
                        Button("Save") {
                            Task {
                                await viewModel.save()
                                if viewModel.saved { dismiss() }
                            }
                        }
                        .fontWeight(.semibold)
                        .disabled(viewModel.nick.isEmpty || viewModel.title.isEmpty)
                    }
                }
            }
        }
    }

    private func field(_ label: String, placeholder: String, text: Binding<String>) -> some View {
        HStack {
            Text(label)
            Spacer()
            TextField(placeholder, text: text)
                .autocorrectionDisabled()
                .textInputAutocapitalization(.never)
                .multilineTextAlignment(.trailing)
                .foregroundStyle(.secondary)
                .frame(maxWidth: 220)
        }
    }
}