08e1187124
Updated namespaces to align with the new DigitalData.Core structure, replacing `DigitalData.Core.Abstractions` with `DigitalData.Core.Application.Interfaces` and `DigitalData.Core.Client.Interface`. Removed the `IUnique<int>` interface from several DTOs, simplifying their design and altering the handling of entity identification. Updated project files to reflect new dependency versions for improved compatibility and features. Cleaned up using directives to remove obsolete references, enhancing code maintainability.
48 lines
2.2 KiB
C#
48 lines
2.2 KiB
C#
using DigitalData.Core.Application.Interfaces.Repository;
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using EnvelopeGenerator.Domain.Entities;
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using MediatR;
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namespace EnvelopeGenerator.Application.Documents.Queries.Read;
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/// <summary>
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/// Handles queries for reading <see cref="EnvelopeDocument"/> data based on either the document ID or the envelope ID.
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/// </summary>
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public class ReadDocumentQueryHandler : IRequestHandler<ReadDocumentQuery, ReadDocumentResponse?>
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{
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/// <summary>
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/// Repository for accessing <see cref="EnvelopeDocument"/> entities.
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/// </summary>
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private readonly IRepository<EnvelopeDocument> _repo;
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/// <summary>
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/// Initializes a new instance of the <see cref="ReadDocumentQueryHandler"/> class.
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/// </summary>
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/// <param name="envelopeDocumentRepository">The repository used to access <see cref="EnvelopeDocument"/> entities.</param>
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public ReadDocumentQueryHandler(IRepository<EnvelopeDocument> envelopeDocumentRepository)
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{
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_repo = envelopeDocumentRepository;
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}
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/// <summary>
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/// Handles the <see cref="ReadDocumentQuery"/> and returns a <see cref="ReadDocumentResponse"/> based on the provided identifiers.
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/// </summary>
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/// <param name="query">The query containing the document ID or envelope ID to search for.</param>
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/// <param name="cancellationToken">A token to monitor for cancellation requests.</param>
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/// <returns>
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/// A <see cref="ReadDocumentResponse"/> if a matching document is found; otherwise, <c>null</c>.
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/// </returns>
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/// <exception cref="InvalidOperationException">
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/// Thrown when neither <see cref="ReadDocumentQuery.Id"/> nor <see cref="ReadDocumentQuery.EnvelopeId"/> is provided.
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/// </exception>
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public async Task<ReadDocumentResponse?> Handle(ReadDocumentQuery query, CancellationToken cancellationToken)
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{
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if (query.Id is not null)
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return await _repo.ReadOrDefaultAsync<ReadDocumentResponse>(d => d.Id == query.Id);
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else if (query.EnvelopeId is not null)
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return await _repo.ReadOrDefaultAsync<ReadDocumentResponse>(d => d.EnvelopeId == query.EnvelopeId);
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throw new InvalidOperationException(
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$"Invalid {nameof(ReadDocumentQuery)}: either {nameof(query.Id)} or {nameof(query.EnvelopeId)} must be provided.");
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}
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}
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