feat: Introduce generation parameter merging from request, Civitai, and embedded image metadata, and enhance ComfyUI metadata parsing.

tests/services/test_comfy_metadata_parser.py

@@ -0,0 +1,113 @@
+import pytest
+import json
+from py.recipes.parsers.comfy import ComfyMetadataParser
+
+@pytest.mark.asyncio
+async def test_parse_metadata_without_loras(monkeypatch):
+    checkpoint_info = {
+        "id": 2224012,
+        "modelId": 1908679,
+        "model": {"name": "SDXL Checkpoint", "type": "checkpoint"},
+        "name": "v1.0",
+        "images": [{"url": "https://image.civitai.com/checkpoints/original=true"}],
+        "baseModel": "sdxl",
+        "downloadUrl": "https://civitai.com/api/download/checkpoint",
+    }
+
+    async def fake_metadata_provider():
+        class Provider:
+            async def get_model_version_info(self, version_id):
+                assert version_id == "2224012"
+                return checkpoint_info, None
+        return Provider()
+
+    monkeypatch.setattr(
+        "py.recipes.parsers.comfy.get_default_metadata_provider",
+        fake_metadata_provider,
+    )
+
+    parser = ComfyMetadataParser()
+
+    # User provided metadata
+    metadata_json = {
+        "resource-stack": {
+            "class_type": "CheckpointLoaderSimple",
+            "inputs": {"ckpt_name": "urn:air:sdxl:checkpoint:civitai:1908679@2224012"}
+        },
+        "6": {
+            "class_type": "smZ CLIPTextEncode",
+            "inputs": {"text": "Positive prompt content"},
+            "_meta": {"title": "Positive"}
+        },
+        "7": {
+            "class_type": "smZ CLIPTextEncode",
+            "inputs": {"text": "Negative prompt content"},
+            "_meta": {"title": "Negative"}
+        },
+        "11": {
+            "class_type": "KSampler",
+            "inputs": {
+                "sampler_name": "euler_ancestral",
+                "scheduler": "normal",
+                "seed": 904124997,
+                "steps": 35,
+                "cfg": 6,
+                "denoise": 0.1,
+                "model": ["resource-stack", 0],
+                "positive": ["6", 0],
+                "negative": ["7", 0],
+                "latent_image": ["21", 0]
+            },
+            "_meta": {"title": "KSampler"}
+        },
+        "extraMetadata": json.dumps({
+            "prompt": "One woman, (solo:1.3), ...",
+            "negativePrompt": "lowres, worst quality, ...",
+            "steps": 35,
+            "cfgScale": 6,
+            "sampler": "euler_ancestral",
+            "seed": 904124997,
+            "width": 1024,
+            "height": 1024
+        })
+    }
+
+    result = await parser.parse_metadata(json.dumps(metadata_json))
+
+    assert "error" not in result
+    assert result["loras"] == []
+    assert result["checkpoint"] is not None
+    assert int(result["checkpoint"]["modelId"]) == 1908679
+    assert int(result["checkpoint"]["id"]) == 2224012
+    assert result["gen_params"]["prompt"] == "One woman, (solo:1.3), ..."
+    assert result["gen_params"]["steps"] == 35
+    assert result["gen_params"]["size"] == "1024x1024"
+    assert result["from_comfy_metadata"] is True
+
+@pytest.mark.asyncio
+async def test_parse_metadata_without_extra_metadata(monkeypatch):
+    async def fake_metadata_provider():
+        class Provider:
+            async def get_model_version_info(self, version_id):
+                return {"model": {"name": "Test"}, "id": version_id}, None
+        return Provider()
+
+    monkeypatch.setattr(
+        "py.recipes.parsers.comfy.get_default_metadata_provider",
+        fake_metadata_provider,
+    )
+
+    parser = ComfyMetadataParser()
+
+    metadata_json = {
+        "node_1": {
+            "class_type": "CheckpointLoaderSimple",
+            "inputs": {"ckpt_name": "urn:air:sdxl:checkpoint:civitai:123@456"}
+        }
+    }
+
+    result = await parser.parse_metadata(json.dumps(metadata_json))
+
+    assert "error" not in result
+    assert result["loras"] == []
+    assert result["checkpoint"]["id"] == "456"