1 files changed, 21 insertions, 0 deletions
diff --git a/src/debputy/integration_detection.py b/src/debputy/integration_detection.py
new file mode 100644
index 0000000..f412268
--- /dev/null
+++ b/src/debputy/integration_detection.py
@@ -0,0 +1,21 @@
+from typing import Container, Optional
+
+from debputy.plugin.api.spec import (
+    DebputyIntegrationMode,
+    INTEGRATION_MODE_DH_DEBPUTY_RRR,
+    INTEGRATION_MODE_DH_DEBPUTY,
+)
+
+
+def determine_debputy_integration_mode(
+    all_sequences: Container[str],
+) -> Optional[DebputyIntegrationMode]:
+
+    has_zz_debputy = "zz-debputy" in all_sequences or "debputy" in all_sequences
+    has_zz_debputy_rrr = "zz-debputy-rrr" in all_sequences
+    has_any_existing = has_zz_debputy or has_zz_debputy_rrr
+    if has_zz_debputy_rrr:
+        return INTEGRATION_MODE_DH_DEBPUTY_RRR
+    if has_any_existing:
+        return INTEGRATION_MODE_DH_DEBPUTY
+    return None