| | | 1 | | using Chronicis.Client.Abstractions; |
| | | 2 | | using Chronicis.Client.Services; |
| | | 3 | | using Chronicis.Shared.DTOs; |
| | | 4 | | using Chronicis.Shared.Extensions; |
| | | 5 | | |
| | | 6 | | namespace Chronicis.Client.ViewModels; |
| | | 7 | | |
| | | 8 | | /// <summary> |
| | | 9 | | /// ViewModel for the Search page. |
| | | 10 | | /// Handles content search, result state, and navigation to matched articles. |
| | | 11 | | /// </summary> |
| | | 12 | | public sealed class SearchViewModel : ViewModelBase |
| | | 13 | | { |
| | | 14 | | private readonly ISearchApiService _searchApi; |
| | | 15 | | private readonly IBreadcrumbService _breadcrumbService; |
| | | 16 | | private readonly ITreeStateService _treeState; |
| | | 17 | | private readonly IAppNavigator _navigator; |
| | | 18 | | private readonly ILogger<SearchViewModel> _logger; |
| | | 19 | | |
| | | 20 | | private bool _isLoading; |
| | | 21 | | private GlobalSearchResultsDto? _results; |
| | | 22 | | |
| | 15 | 23 | | public SearchViewModel( |
| | 15 | 24 | | ISearchApiService searchApi, |
| | 15 | 25 | | IBreadcrumbService breadcrumbService, |
| | 15 | 26 | | ITreeStateService treeState, |
| | 15 | 27 | | IAppNavigator navigator, |
| | 15 | 28 | | ILogger<SearchViewModel> logger) |
| | | 29 | | { |
| | 15 | 30 | | _searchApi = searchApi; |
| | 15 | 31 | | _breadcrumbService = breadcrumbService; |
| | 15 | 32 | | _treeState = treeState; |
| | 15 | 33 | | _navigator = navigator; |
| | 15 | 34 | | _logger = logger; |
| | 15 | 35 | | } |
| | | 36 | | |
| | | 37 | | /// <summary>Whether a search request is in flight.</summary> |
| | | 38 | | public bool IsLoading |
| | | 39 | | { |
| | 12 | 40 | | get => _isLoading; |
| | 11 | 41 | | private set => SetField(ref _isLoading, value); |
| | | 42 | | } |
| | | 43 | | |
| | | 44 | | /// <summary>The results of the most recent search, or <c>null</c> if no search has been performed.</summary> |
| | | 45 | | public GlobalSearchResultsDto? Results |
| | | 46 | | { |
| | 24 | 47 | | get => _results; |
| | 12 | 48 | | private set => SetField(ref _results, value); |
| | | 49 | | } |
| | | 50 | | |
| | | 51 | | /// <summary> |
| | | 52 | | /// Executes a content search for the given query. |
| | | 53 | | /// Clears results and does nothing when <paramref name="query"/> is null or whitespace. |
| | | 54 | | /// </summary> |
| | | 55 | | public async Task SearchAsync(string? query) |
| | | 56 | | { |
| | | 57 | | if (string.IsNullOrWhiteSpace(query)) |
| | | 58 | | { |
| | | 59 | | Results = null; |
| | | 60 | | return; |
| | | 61 | | } |
| | | 62 | | |
| | | 63 | | IsLoading = true; |
| | | 64 | | |
| | | 65 | | try |
| | | 66 | | { |
| | | 67 | | Results = await _searchApi.SearchContentAsync(query); |
| | | 68 | | } |
| | | 69 | | catch (Exception ex) |
| | | 70 | | { |
| | | 71 | | _logger.LogErrorSanitized(ex, "Search error for query: {Query}", query); |
| | | 72 | | Results = null; |
| | | 73 | | } |
| | | 74 | | finally |
| | | 75 | | { |
| | | 76 | | IsLoading = false; |
| | | 77 | | } |
| | | 78 | | } |
| | | 79 | | |
| | | 80 | | /// <summary> |
| | | 81 | | /// Expands the tree to the article and navigates to it. |
| | | 82 | | /// </summary> |
| | | 83 | | public void NavigateToArticle(ArticleSearchResultDto result) |
| | | 84 | | { |
| | 3 | 85 | | _treeState.ExpandPathToAndSelect(result.Id); |
| | | 86 | | |
| | 3 | 87 | | if (result.AncestorPath != null && result.AncestorPath.Any()) |
| | | 88 | | { |
| | 1 | 89 | | var path = _breadcrumbService.BuildArticleUrl(result.AncestorPath); |
| | 1 | 90 | | _navigator.NavigateTo(path); |
| | | 91 | | } |
| | | 92 | | else |
| | | 93 | | { |
| | 2 | 94 | | _navigator.NavigateTo($"/article/{result.Slug}"); |
| | | 95 | | } |
| | 2 | 96 | | } |
| | | 97 | | } |