using DocumentService.Client.Interfaces;
using DocumentService.Client.Models.Requests;
using Microsoft.Extensions.Logging;
using System.Net.Http;

namespace DocumentService.Client.Clients;

/// <summary>
/// Implementation of the PDF digital-signing client.
/// </summary>
public class PdfSignatureClient(HttpClient httpClient, ILogger<PdfSignatureClient> logger) : BaseDocumentClient(httpClient, logger), IPdfSignatureClient
{
    /// <inheritdoc />
    public async Task<Stream> SignAsync(byte[] pdfBytes, SignPdfOptions options, byte[]? signatureImageBytes = null, CancellationToken cancellationToken = default)
    {
        var request = new SignPdfRequest
        {
            Base64Pdf = ToBase64(pdfBytes),
            Base64SignatureImage = signatureImageBytes is null ? null : ToBase64(signatureImageBytes),
            Options = options
        };

        return await SendJsonForStreamAsync("/api/pdf/signature/sign", request, cancellationToken);
    }
}