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video-gen-api/app/api/v1/image_engines.py

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+import json
+
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from fastapi import APIRouter, Depends
+
+from app.dependencies import get_db, get_current_user
+from app.models.user import User
+from app.models.image_engine import ImageEngine
+from app.schemas.image_engine import ImageEngineListResponse
+
+router = APIRouter(prefix="/image-engines", tags=["image-engines"])
+
+
+@router.get("", response_model=ImageEngineListResponse)
+async def list_active_engines(
+    current_user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """Public endpoint returning active image engine capabilities."""
+    result = await db.execute(
+        select(ImageEngine)
+        .where(ImageEngine.is_active == True)
+        .order_by(ImageEngine.priority.desc())
+    )
+    engines = result.scalars().all()
+    items = []
+    for e in engines:
+        models = []
+        sizes = {}
+        try:
+            models = json.loads(e.supported_models) if e.supported_models else []
+        except Exception:
+            pass
+        try:
+            sizes = json.loads(e.supported_sizes) if e.supported_sizes else {}
+        except Exception:
+            pass
+        items.append({
+            "id": e.id,
+            "name": e.name,
+            "provider": e.provider,
+            "supported_models": models,
+            "supported_sizes": sizes,
+            "default_size": e.default_size,
+        })
+    return {"items": items}