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Services/DirectDebitsService.cs

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+using System.Text.Json.Nodes;
+using Csob.Client;
+
+namespace Csob.Services;
+
+/// <summary>
+/// PISP – direct-debit mandate initiation, detail/status, revocation and the sign (SCA) flow.
+/// The mandate creation body varies across COBS profiles, so it is accepted and forwarded as raw JSON.
+/// </summary>
+public sealed class DirectDebitsService
+{
+    private readonly CsobApiAccessor _accessor;
+
+    public DirectDebitsService(CsobApiAccessor accessor) => _accessor = accessor;
+
+    public Task<JsonNode?> InitiateAsync(JsonNode request, CancellationToken ct)
+        => _accessor.Client.PostAsync(CsobApiPaths.DirectDebits, request, ct);
+
+    public Task<JsonNode?> DetailAsync(string id, CancellationToken ct)
+        => _accessor.Client.GetAsync(CsobApiPaths.DirectDebit(id), null, ct);
+
+    public Task<JsonNode?> StatusAsync(string id, CancellationToken ct)
+        => _accessor.Client.GetAsync(CsobApiPaths.DirectDebitStatus(id), null, ct);
+
+    public Task<JsonNode?> CancelAsync(string id, CancellationToken ct)
+        => _accessor.Client.DeleteAsync(CsobApiPaths.DirectDebit(id), ct);
+
+    public Task<JsonNode?> StartSignAsync(string id, string signId, JsonNode? body, CancellationToken ct)
+        => _accessor.Client.PostAsync(CsobApiPaths.DirectDebitSign(id, signId), body, ct);
+
+    public Task<JsonNode?> SignStatusAsync(string id, string signId, CancellationToken ct)
+        => _accessor.Client.GetAsync(CsobApiPaths.DirectDebitSign(id, signId), null, ct);
+
+    public Task<JsonNode?> FinalizeSignAsync(string id, string signId, JsonNode? body, CancellationToken ct)
+        => _accessor.Client.PutAsync(CsobApiPaths.DirectDebitSign(id, signId), body, ct);
+}