import sys
ve = "src/encoders/vision_encoder.py"
src = open(ve).read()
if "class PanDermEncoder" in src:
    print("already inserted; skipping")
    sys.exit(0)
wrap = open("src/encoders/panderm_wrappers_snippet.py").read()
anchor = "# Registry mapping encoder types to classes"
assert anchor in src, "registry anchor not found"
src = src.replace(anchor, wrap.rstrip() + "\n\n\n" + anchor, 1)
reg_anchor = "    'dinov3mls': DINOv3MultiLayerSimpleAddEncoder,"
assert reg_anchor in src, "dinov3mls registry line not found"
src = src.replace(
    reg_anchor,
    reg_anchor + "\n    # PanDerm dermatology FM\n    'panderm': PanDermEncoder,\n    'pandermmls': PanDermMultiLayerSimpleAddEncoder,",
    1,
)
open(ve, "w").write(src)
print("inserted PanDerm wrappers + registry OK")