Phase 4.2+4.3: YAML workflow spec + ACA protocol abstraction (v2026.07.19.10)

backend/python/app/api/admin/agents_admin.py

@@ -654,3 +654,131 @@ async def set_agent_orchestration(
     agent.orchestration = og
     db.commit()
     return {"agent_id": agent_id, "orchestration": agent.orchestration, "updated": True}
+
+
+# ============================================================
+# Phase 4.2: YAML workflow import/export/validate/templates
+# ============================================================
+
+import yaml as _yaml
+import os as _os
+from app.core.yaml_workflow import validate_yaml, yaml_to_orchestration, orchestration_to_yaml
+from app.core.orchestrator import validate_graph
+
+_YTMPL = _os.path.join(_os.path.dirname(_os.path.dirname(_os.path.dirname(__file__))), "workflow_templates")
+
+
+class YAMLBody(BaseModel):
+    yaml_text: str
+
+
+@router.post("/orchestration/yaml/validate", summary="校验 YAML 工作流")
+async def yaml_validate(req: YAMLBody, admin_user=Depends(get_current_admin)):
+    try:
+        data = _yaml.safe_load(req.yaml_text)
+    except _yaml.YAMLError as e:
+        return {"ok": False, "errors": [f"YAML parse: {str(e)}"], "warnings": []}
+    r = validate_yaml(data)
+    if r["ok"]:
+        try:
+            validate_graph(yaml_to_orchestration(data))
+        except Exception as e:
+            r["ok"] = False; r["errors"].append(f"Graph fail: {str(e)}")
+    return r
+
+
+@router.post("/{agent_id}/orchestration/yaml/import", summary="YAML 导入编排")
+async def yaml_import(agent_id: str, req: YAMLBody, admin_user=Depends(get_current_admin), db=Depends(get_db)):
+    ag = db.query(MarketApp).filter(MarketApp.id == agent_id, MarketApp.type == "agent").first()
+    if not ag:
+        raise HTTPException(status_code=404, detail="Agent not found")
+    try:
+        data = _yaml.safe_load(req.yaml_text)
+    except _yaml.YAMLError as e:
+        raise HTTPException(status_code=400, detail=f"YAML parse: {str(e)}")
+    v = validate_yaml(data)
+    if not v["ok"]:
+        raise HTTPException(status_code=400, detail="YAML invalid: " + "; ".join(v["errors"]))
+    orch = yaml_to_orchestration(data)
+    try:
+        validate_graph(orch)
+    except Exception as e:
+        raise HTTPException(status_code=400, detail=f"Graph invalid: {str(e)}")
+    ag.orchestration = orch
+    ag.updated_at = datetime.now()
+    db.commit()
+    return {"agent_id": agent_id, "orchestration": ag.orchestration, "imported": True}
+
+
+@router.post("/{agent_id}/orchestration/yaml/export", summary="编排导出 YAML")
+async def yaml_export(agent_id: str, admin_user=Depends(get_current_admin), db=Depends(get_db)):
+    ag = db.query(MarketApp).filter(MarketApp.id == agent_id, MarketApp.type == "agent").first()
+    if not ag:
+        raise HTTPException(status_code=404, detail="Agent not found")
+    if not ag.orchestration:
+        raise HTTPException(status_code=400, detail="No orchestration")
+    yaml_str = _yaml.dump(orchestration_to_yaml(ag.orchestration), allow_unicode=True, default_flow_style=False, sort_keys=False)
+    return {"agent_id": agent_id, "yaml": yaml_str, "version": "1.0"}
+
+
+@router.get("/orchestration/yaml/templates", summary="内置模板")
+async def yaml_templates(admin_user=Depends(get_current_admin)):
+    tmpls = []
+    if _os.path.isdir(_YTMPL):
+        for fp in sorted(_os.listdir(_YTMPL)):
+            if fp.endswith((".yaml", ".yml")):
+                try:
+                    with open(_os.path.join(_YTMPL, fp), encoding="utf-8") as f:
+                        txt = f.read()
+                        d = _yaml.safe_load(txt) or {}
+                        tmpls.append({"filename": fp, "name": d.get("name", fp),
+                                      "description": d.get("description", ""),
+                                      "category": d.get("category", "general"), "yaml": txt})
+                except Exception:
+                    tmpls.append({"filename": fp, "name": fp, "error": True})
+    return {"templates": tmpls, "count": len(tmpls)}
+
+
+# ============================================================
+# Phase 4.3: ACA 协议抽象 — protocols / tools / health
+# ============================================================
+
+from app.core.aca import registry as _aca_registry, init_aca_registry
+
+# 懒初始化：首次调用 ACA 端点时确保 registry 已填充
+_aca_initialized = False
+
+def _ensure_aca():
+    global _aca_initialized
+    if not _aca_initialized:
+        init_aca_registry()
+        _aca_initialized = True
+
+
+@router.get("/aca/protocols", summary="ACA 已注册协议")
+async def aca_protocols(admin_user=Depends(get_current_admin)):
+    _ensure_aca()
+    return [
+        {"name": a.name, "version": a.version, "capabilities": a.capabilities}
+        for a in _aca_registry.list_all()
+    ]
+
+
+@router.get("/aca/protocols/{name}/tools", summary="协议工具列表")
+async def aca_protocol_tools(name: str, admin_user=Depends(get_current_admin)):
+    _ensure_aca()
+    adapter = _aca_registry.get(name)
+    if not adapter:
+        raise HTTPException(status_code=404, detail=f"协议 {name} 未注册")
+    tools = await adapter.list_tools()
+    return {"protocol": name, "tools": tools, "count": len(tools)}
+
+
+@router.post("/aca/protocols/{name}/health", summary="协议健康检查")
+async def aca_protocol_health(name: str, admin_user=Depends(get_current_admin)):
+    _ensure_aca()
+    adapter = _aca_registry.get(name)
+    if not adapter:
+        raise HTTPException(status_code=404, detail=f"协议 {name} 未注册")
+    ok = await adapter.health_check()
+    return {"protocol": name, "healthy": ok}