feat: 完成工作流调度与上传下载 API

app/routers/nodes.py

@@ -0,0 +1,95 @@
+from __future__ import annotations
+
+from fastapi import APIRouter, Depends, HTTPException
+
+from app.db import Database
+from app.node_manager import NodeManager
+from app.schemas import InvokePayload, NodeCreate
+from wov_sdk.models import InvokeRequest
+
+router = APIRouter(prefix="/api/admin/nodes", tags=["nodes"])
+
+
+def _get_db() -> Database:
+    from app.main import app
+
+    return app.state.db
+
+
+def _get_manager() -> NodeManager:
+    from app.main import app
+
+    return app.state.node_manager
+
+
+@router.post("")
+def register_node(payload: NodeCreate, db: Database = Depends(_get_db)) -> dict:
+    manifest = payload.to_manifest()
+    try:
+        manifest.validate()
+    except ValueError as exc:
+        raise HTTPException(status_code=422, detail=str(exc)) from exc
+    db.upsert_node(manifest)
+    return manifest.to_dict()
+
+
+@router.get("")
+def list_nodes(db: Database = Depends(_get_db)) -> list[dict]:
+    return [manifest.to_dict() for manifest in db.list_nodes()]
+
+
+@router.get("/{node_id}")
+def get_node(node_id: str, db: Database = Depends(_get_db)) -> dict:
+    manifest = db.get_node(node_id)
+    if manifest is None:
+        raise HTTPException(status_code=404, detail="node not found")
+    return manifest.to_dict()
+
+
+@router.delete("/{node_id}")
+def delete_node(
+    node_id: str,
+    db: Database = Depends(_get_db),
+    manager: NodeManager = Depends(_get_manager),
+) -> dict:
+    if db.get_node(node_id) is None:
+        raise HTTPException(status_code=404, detail="node not found")
+    manager.stop_all_for_node(node_id)
+    db.delete_node(node_id)
+    return {"deleted": node_id}
+
+
+@router.post("/{node_id}/invoke")
+def invoke_node(
+    node_id: str,
+    payload: InvokePayload,
+    manager: NodeManager = Depends(_get_manager),
+) -> dict:
+    from app.config import STORAGE_DIR
+
+    output_dir = (
+        STORAGE_DIR / "runs" / payload.run_id / "steps" / node_id
+    )
+    request = InvokeRequest(
+        run_id=payload.run_id,
+        node_instance_id="",
+        inputs=payload.inputs,
+        params=payload.params,
+        output_dir=str(output_dir),
+    )
+    response = manager.invoke(node_id, request)
+    return response.to_dict()
+
+
+@router.get("/{node_id}/instances")
+def list_node_instances(
+    node_id: str,
+    db: Database = Depends(_get_db),
+) -> list[dict]:
+    if db.get_node(node_id) is None:
+        raise HTTPException(status_code=404, detail="node not found")
+    return [
+        instance
+        for instance in db.list_instances()
+        if instance["node_id"] == node_id
+    ]