| | | 1 | | using Microsoft.JSInterop; |
| | | 2 | | |
| | | 3 | | namespace Pomodoro.Web.Services; |
| | | 4 | | |
| | | 5 | | /// <summary> |
| | | 6 | | /// Service for Chart.js JavaScript interop |
| | | 7 | | /// </summary> |
| | | 8 | | public class ChartService : IAsyncDisposable |
| | | 9 | | { |
| | | 10 | | private readonly IJSRuntime _jsRuntime; |
| | | 11 | | private bool _initialized; |
| | | 12 | | |
| | 282 | 13 | | public ChartService(IJSRuntime jsRuntime) |
| | 282 | 14 | | { |
| | 282 | 15 | | _jsRuntime = jsRuntime; |
| | 282 | 16 | | } |
| | | 17 | | |
| | | 18 | | /// <summary> |
| | | 19 | | /// Creates a bar chart with the specified configuration |
| | | 20 | | /// </summary> |
| | | 21 | | public async Task CreateBarChartAsync(string canvasId, string[] labels, int[] data, string label = Constants.Charts. |
| | 11 | 22 | | { |
| | 11 | 23 | | await EnsureInitializedAsync(); |
| | 11 | 24 | | await _jsRuntime.InvokeVoidAsync(Constants.ChartJsFunctions.CreateBarChart, canvasId, labels, data, label, highl |
| | 11 | 25 | | } |
| | | 26 | | |
| | | 27 | | /// <summary> |
| | | 28 | | /// Creates a grouped bar chart with focus time and break data |
| | | 29 | | /// </summary> |
| | | 30 | | public async Task CreateGroupedBarChartAsync(string canvasId, string[] labels, int[] focusData, int[] breakData, int |
| | 58 | 31 | | { |
| | 58 | 32 | | await EnsureInitializedAsync(); |
| | 58 | 33 | | await _jsRuntime.InvokeVoidAsync(Constants.ChartJsFunctions.CreateGroupedBarChart, canvasId, labels, focusData, |
| | 58 | 34 | | } |
| | | 35 | | |
| | | 36 | | /// <summary> |
| | | 37 | | /// Updates an existing chart with new data |
| | | 38 | | /// </summary> |
| | | 39 | | public async Task UpdateChartAsync(string canvasId, int[] data) |
| | 2 | 40 | | { |
| | 2 | 41 | | await _jsRuntime.InvokeVoidAsync(Constants.ChartJsFunctions.UpdateChart, canvasId, data); |
| | 1 | 42 | | } |
| | | 43 | | |
| | | 44 | | /// <summary> |
| | | 45 | | /// Destroys a chart to free resources |
| | | 46 | | /// </summary> |
| | | 47 | | public virtual async Task DestroyChartAsync(string canvasId) |
| | 46 | 48 | | { |
| | | 49 | | try |
| | 46 | 50 | | { |
| | 46 | 51 | | await _jsRuntime.InvokeVoidAsync(Constants.ChartJsFunctions.DestroyChart, canvasId); |
| | 40 | 52 | | } |
| | 6 | 53 | | catch (Exception) |
| | 6 | 54 | | { |
| | | 55 | | // Ignore errors during disposal - chart may not exist or already destroyed |
| | 6 | 56 | | } |
| | 46 | 57 | | } |
| | | 58 | | |
| | | 59 | | private async Task EnsureInitializedAsync() |
| | 69 | 60 | | { |
| | 79 | 61 | | if (_initialized) return; |
| | | 62 | | |
| | | 63 | | try |
| | 59 | 64 | | { |
| | 59 | 65 | | await _jsRuntime.InvokeVoidAsync(Constants.ChartJsFunctions.EnsureInitialized); |
| | 56 | 66 | | _initialized = true; |
| | 56 | 67 | | } |
| | 3 | 68 | | catch |
| | 3 | 69 | | { |
| | | 70 | | // Chart.js may not be loaded yet, will be handled gracefully |
| | 3 | 71 | | } |
| | 69 | 72 | | } |
| | | 73 | | |
| | | 74 | | public async ValueTask DisposeAsync() |
| | 2 | 75 | | { |
| | | 76 | | // Charts will be cleaned up by the browser when the page unloads |
| | 2 | 77 | | await Task.CompletedTask; |
| | 2 | 78 | | } |
| | | 79 | | } |