EnvelopeGenerator/EnvelopeGenerator.Server/EnvelopeGenerator.Server.Client/Services/CustomReportProvider.cs

using DevExpress.XtraReports.UI;
using DevExpress.XtraReports.Services;
using EnvelopeGenerator.WebUI.Client.PredefinedReports;

namespace EnvelopeGenerator.WebUI.Client.Services;

public class CustomReportProvider : IReportProviderAsync {
    private readonly InMemoryReportStorageWebExtension reportStorage;

    public CustomReportProvider(InMemoryReportStorageWebExtension reportStorage) {
        this.reportStorage = reportStorage;
    }

    public Task<XtraReport> GetReportAsync(string id, ReportProviderContext context) {
        if(reportStorage.TryGetReport(id, out var savedReport))
            return Task.FromResult(savedReport);

        return Task.FromResult(ReportsFactory.GetReport(id));
    }
}