using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.Core.Commands;

namespace Tango.MachineStudio.Common.Navigation
{
    /// <summary>
    /// Represents the Machine Studio views navigation manager.
    /// </summary>
    public interface INavigationManager
    {
        /// <summary>
        /// Gets the current module.
        /// </summary>
        IStudioModule CurrentModule { get; }

        /// <summary>
        /// Gets the current view model.
        /// </summary>
        StudioViewModel CurrentVM { get; }

        /// <summary>
        /// Gets a value indicating whether the navigation system is able to navigate to the previous view.
        /// </summary>
        bool CanNavigateBack { get; }

        /// <summary>
        /// Navigates to the previous view if <see cref="CanNavigateBack"/> is true.
        /// </summary>
        Task<bool> NavigateBack();

        /// <summary>
        /// Navigates to the previous view..
        /// </summary>
        RelayCommand NavigateBackCommand { get; }

        /// <summary>
        /// Navigates to the specified full path in command parameter.
        /// </summary>
        RelayCommand<String> NavigateToCommand { get; }

        /// <summary>
        /// Navigates to the specified PPC view.
        /// </summary>
        /// <param name="view">The view.</param>
        Task<bool> NavigateTo(NavigationView view, bool pushToHistory = true);

        /// <summary>
        /// Navigates to the specified PPC view with the specified receive object.
        /// </summary>
        /// <param name="view">The view.</param>
        Task<bool> NavigateWithObject<TPass>(NavigationView view, TPass obj, bool pushToHistory = true);

        /// <summary>
        /// Navigates to the specified module.
        /// </summary>
        /// <typeparam name="T"></typeparam>
        Task<bool> NavigateTo<T>(bool pushToHistory = true) where T : IStudioModule;

        /// <summary>
        /// Navigates to the specified module using the view path (e.g MainView.JobsView).
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="viewPath">The view path.</param>
        Task<bool> NavigateTo<T>(String viewPath, bool pushToHistory = true) where T : IStudioModule;

        /// <summary>
        /// Navigates to the specified module using the view path