116 lines
4.2 KiB
C#
116 lines
4.2 KiB
C#
using System.ComponentModel;
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using System.Reactive.Linq;
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using DeclarativeProperty;
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using DynamicData;
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using FileTime.App.Core.Models.Enums;
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using FileTime.App.Core.Services;
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using FileTime.Core.Behaviors;
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using FileTime.Core.Helper;
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using FileTime.Core.Models;
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using MoreLinq;
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using MvvmGen;
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namespace FileTime.App.Core.ViewModels;
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[ViewModel]
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[Inject(typeof(IAppState), "_appState")]
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[Inject(typeof(IItemNameConverterService), "_itemNameConverterService")]
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public abstract partial class ItemViewModel : IItemViewModel
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{
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private ITabViewModel? _parentTab;
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[Property] private IItem? _baseItem;
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[Property] private string? _displayNameText;
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[Property] private IDeclarativeProperty<bool> _isSelected;
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[Property] private IObservable<bool>? _isMarked;
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[Property] private IObservable<ItemViewMode> _viewMode;
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[Property] private DateTime? _createdAt;
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[Property] private string? _attributes;
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[Property] private IDeclarativeProperty<bool> _isAlternative;
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public IDeclarativeProperty<IReadOnlyList<ItemNamePart>>? DisplayName { get; private set; }
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public void Init(
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IItem item,
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ITabViewModel parentTab,
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ItemViewModelType itemViewModelType)
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{
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_parentTab = parentTab;
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var sourceCollection = itemViewModelType switch
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{
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ItemViewModelType.Main => parentTab.CurrentItems,
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ItemViewModelType.Parent => parentTab.ParentsChildren,
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ItemViewModelType.SelectedChild => parentTab.SelectedsChildren,
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_ => throw new InvalidEnumArgumentException()
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};
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var displayName = itemViewModelType switch
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{
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ItemViewModelType.Main => _appState.RapidTravelText.Map(async (s, _) =>
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_appState.ViewMode.Value != Models.Enums.ViewMode.RapidTravel
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&& _appState.CurrentSelectedTab?.CurrentLocation.Value?.Provider is IItemNameConverterProvider nameConverterProvider
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? (IReadOnlyList<ItemNamePart>) await nameConverterProvider.GetItemNamePartsAsync(item)
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: _itemNameConverterService.GetDisplayName(item.DisplayName, s)
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),
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_ => new DeclarativeProperty<IReadOnlyList<ItemNamePart>>(new List<ItemNamePart> {new(item.DisplayName)}),
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};
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BaseItem = item;
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DisplayName = displayName;
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DisplayNameText = item.DisplayName;
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IsMarked = itemViewModelType is ItemViewModelType.Main
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? parentTab.MarkedItems.ToCollection().Select(m => m.Any(i => i.Path == item.FullName?.Path))
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: Observable.Return(false);
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IsSelected = itemViewModelType is ItemViewModelType.Main
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? parentTab.CurrentSelectedItem.Map(EqualsTo)
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: new DeclarativeProperty<bool>(IsInDeepestPath());
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IsAlternative = sourceCollection.Map(c => c?.Index().FirstOrDefault(i => EqualsTo(i.Value)).Key % 2 == 0);
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ViewMode = Observable.CombineLatest(IsMarked, IsSelected, IsAlternative, GenerateViewMode).Throttle(TimeSpan.FromMilliseconds(10));
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Attributes = item.Attributes;
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CreatedAt = item.CreatedAt;
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}
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private ItemViewMode GenerateViewMode(bool isMarked, bool isSelected, bool isAlternative)
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=> (isMarked, isSelected, isAlternative) switch
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{
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(true, true, _) => ItemViewMode.MarkedSelected,
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(true, false, true) => ItemViewMode.MarkedAlternative,
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(false, true, _) => ItemViewMode.Selected,
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(false, false, true) => ItemViewMode.Alternative,
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(true, false, false) => ItemViewMode.Marked,
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_ => ItemViewMode.Default
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};
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public bool EqualsTo(IItemViewModel? itemViewModel)
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{
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return BaseItem?.FullName?.Path is string path && path == itemViewModel?.BaseItem?.FullName?.Path;
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}
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private bool IsInDeepestPath()
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{
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if (_parentTab?.Tab?.LastDeepestSelectedPath is null
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|| BaseItem?.FullName is null)
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{
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return false;
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}
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var ownFullName = BaseItem.FullName;
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var deepestPath = _parentTab.Tab.LastDeepestSelectedPath;
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var commonPath = FullName.CreateSafe(PathHelper.GetCommonPath(ownFullName.Path, deepestPath.Path));
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return commonPath is not null && commonPath.Path == ownFullName.Path;
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}
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} |