more flex and filters

Services/ReportsService.cs

@@ -0,0 +1,31 @@
+using IdokladSdk.Enums;
+using IdokladSdk.Models.Report;
+using Idoklad.Client;
+
+namespace Idoklad.Services;
+
+/// <summary>
+/// Document PDF exports (iDoklad Reports). Each method returns the report as a Base64-encoded
+/// string — the iDoklad API's native representation; decode it to obtain the raw PDF bytes.
+/// </summary>
+public sealed class ReportsService
+{
+    private readonly IdokladApiAccessor _accessor;
+
+    public ReportsService(IdokladApiAccessor accessor) => _accessor = accessor;
+
+    /// <summary>Export an issued invoice as a Base64-encoded PDF.</summary>
+    public async Task<string> IssuedInvoicePdfAsync(int id, Language? language, bool compressed, CancellationToken ct)
+        => (await _accessor.Api.ReportClient.IssuedInvoice.Detail(id).GetAsync(Option(language, compressed), ct)).Unwrap();
+
+    /// <summary>Export a proforma (advance) invoice as a Base64-encoded PDF.</summary>
+    public async Task<string> ProformaInvoicePdfAsync(int id, Language? language, bool compressed, CancellationToken ct)
+        => (await _accessor.Api.ReportClient.ProformaInvoice.Detail(id).GetAsync(Option(language, compressed), ct)).Unwrap();
+
+    /// <summary>Export a credit note as a Base64-encoded PDF.</summary>
+    public async Task<string> CreditNotePdfAsync(int id, Language? language, bool compressed, CancellationToken ct)
+        => (await _accessor.Api.ReportClient.CreditNote.Detail(id).GetAsync(Option(language, compressed), ct)).Unwrap();
+
+    private static ExtendedReportOption Option(Language? language, bool compressed)
+        => new() { Language = language, Compressed = compressed };
+}