gramora/gramora/ViewModels/MainViewModel.swift

import Combine
import Foundation

@MainActor
final class MainViewModel: ObservableObject {
    @Published var selectedDestination: NavigationDestination = .grammarChecker
    @Published var isShowingPaywall = false
    @Published var isShowingSettings = false
    @Published var pendingHistoryEntry: HistoryEntry?

    func showPaywall() {
        isShowingPaywall = true
    }

    func hidePaywall() {
        isShowingPaywall = false
    }

    func selectDestination(_ destination: NavigationDestination) {
        selectedDestination = destination
        hideSettings()
    }

    func showSettings() {
        isShowingSettings = true
    }

    func hideSettings() {
        isShowingSettings = false
    }

    func openHistoryEntry(_ entry: HistoryEntry) {
        pendingHistoryEntry = entry
        selectedDestination = entry.tool.navigationDestination
        hideSettings()
    }

    func clearPendingHistoryEntry() {
        pendingHistoryEntry = nil
    }
}