// KeeVault/Views/EntryEditView.swift
import SwiftUI
import KeeVaultCore

struct EntryEditView: View {
    @ObservedObject var vm: EntryEditViewModel
    @Environment(\.dismiss) private var dismiss

    var body: some View {
        NavigationStack {
            Form {
                if !vm.isEditing {
                    Section("Group") {
                        Picker("Group", selection: $vm.groupId) {
                            ForEach(vm.flatGroups) { flatGroup in
                                Text(groupLabel(for: flatGroup)).tag(flatGroup.group.id)
                            }
                        }
                    }
                }

                Section("Credentials") {
                    TextField("Title", text: $vm.title)
                    TextField("Username", text: $vm.username)
                        .textContentType(.username)
                        .autocorrectionDisabled()
                    SecureField("Password", text: $vm.password)
                        .textContentType(.password)
                    TextField("URL", text: $vm.url)
                        .textContentType(.URL)
                        #if os(iOS)
                        .keyboardType(.URL)
                        #endif
                        .autocorrectionDisabled()
                }

                Section("Notes") {
                    TextEditor(text: $vm.notes)
                        .frame(minHeight: 80)
                }

                Section {
                    ForEach($vm.customFields) { $field in
                        HStack {
                            TextField("Key", text: $field.key)
                            Divider()
                            TextField("Value", text: Binding(
                                get: { field.value.reveal() },
                                set: { field.value = ProtectedString($0, isProtected: field.value.isProtected) }
                            ))
                        }
                    }
                    .onDelete(perform: vm.removeCustomField)
                    Button("Add Field", action: vm.addCustomField)
                } header: {
                    Text("Custom Fields")
                }

                if let msg = vm.errorMessage {
                    Section { Text(msg).foregroundStyle(.red) }
                }
            }
            .navigationTitle(vm.isEditing ? "Edit Entry" : "New Entry")
            #if os(iOS)
            .navigationBarTitleDisplayMode(.inline)
            #endif
            .toolbar {
                ToolbarItem(placement: .cancellationAction) {
                    Button("Cancel") { dismiss() }
                }
                ToolbarItem(placement: .confirmationAction) {
                    Button("Save") { vm.save { dismiss() } }
                        .disabled(vm.title.isEmpty || vm.isSaving)
                }
            }
        }
    }

    private func groupLabel(for flatGroup: FlatGroup) -> String {
        (flatGroup.breadcrumb.map(\.name) + [flatGroup.group.name]).joined(separator: " > ")
    }
}