TekH
66f7b6f5e1
Updated `MappingProfile` to map `Signature.DataUrl` to `DocReceiverElement.Ink` using the new `MapDataUrlToRequiredBytes` extension method. Added `MapDataUrlToRequiredBytes` to handle base64-encoded data URLs, converting them to byte arrays. Introduced a `using System;` directive in `AutoMapperAuditingExtensions.cs` to support `DateTime`. Retained `MapChangedWhen` functionality while extending mapping capabilities for handling base64 data URLs.
42 lines
1.9 KiB
C#
42 lines
1.9 KiB
C#
using AutoMapper;
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using EnvelopeGenerator.Domain.Interfaces.Auditing;
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using System;
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namespace EnvelopeGenerator.Application.Common.Extensions;
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/// <summary>
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/// Extension methods for applying auditing timestamps during AutoMapper mappings.
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/// </summary>
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public static class AutoMapperAuditingExtensions
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{
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/// <summary>
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/// Maps <see cref="IHasAddedWhen.AddedWhen"/> to the current UTC time.
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/// </summary>
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public static IMappingExpression<TSource, TDestination> MapAddedWhen<TSource, TDestination>(this IMappingExpression<TSource, TDestination> expression)
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where TDestination : IHasAddedWhen
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=> expression.ForMember(dest => dest.AddedWhen, opt => opt.MapFrom(_ => DateTime.Now));
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/// <summary>
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/// Maps <see cref="IHasChangedWhen.ChangedWhen"/> to the current UTC time.
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/// </summary>
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public static IMappingExpression<TSource, TDestination> MapChangedWhen<TSource, TDestination>(this IMappingExpression<TSource, TDestination> expression)
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where TDestination : IHasChangedWhen
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=> expression.ForMember(dest => dest.ChangedWhen, opt => opt.MapFrom(_ => DateTime.Now));
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/// <summary>
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/// Converts a base64 data URL string to a byte array.
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/// Handles data URLs in the format: "data:image/png;base64,iVBORw0KG..."
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/// </summary>
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/// <param name="dataUrl">The base64 data URL string from Canvas.toDataURL()</param>
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/// <returns>The decoded byte array, or null if the input is null or empty</returns>
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public static byte[]? MapDataUrlToRequiredBytes(this string dataUrl)
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{
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// Remove data URL prefix (e.g., "data:image/png;base64,")
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var base64Index = dataUrl.IndexOf(',', StringComparison.Ordinal);
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if (base64Index == -1)
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throw new ArgumentException("Invalid data URL format. Unable to extract base64 data.", nameof(dataUrl));
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var base64Data = dataUrl[(base64Index + 1)..];
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return Convert.FromBase64String(base64Data);
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}
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} |