83 lines
2.8 KiB
Python
83 lines
2.8 KiB
Python
from typing import Any, Dict, List, Optional
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from fastapi import APIRouter, Depends, HTTPException
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from pydantic import BaseModel, ConfigDict, field_validator
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from sqlalchemy.orm import Session
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from models.distribution import Distribution
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from models.parameters import Parameter
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from models.scenario import Scenario
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from routes.dependencies import get_db
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router = APIRouter(prefix="/api/parameters", tags=["parameters"])
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class ParameterCreate(BaseModel):
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scenario_id: int
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name: str
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value: float
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distribution_id: Optional[int] = None
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distribution_type: Optional[str] = None
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distribution_parameters: Optional[Dict[str, Any]] = None
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@field_validator("distribution_type")
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@classmethod
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def normalize_type(cls, value: Optional[str]) -> Optional[str]:
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if value is None:
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return value
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normalized = value.strip().lower()
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if not normalized:
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return None
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if normalized not in {"normal", "uniform", "triangular"}:
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raise ValueError(
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"distribution_type must be normal, uniform, or triangular")
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return normalized
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@field_validator("distribution_parameters")
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@classmethod
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def empty_dict_to_none(cls, value: Optional[Dict[str, Any]]) -> Optional[Dict[str, Any]]:
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if value is None:
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return None
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return value or None
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class ParameterRead(ParameterCreate):
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id: int
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model_config = ConfigDict(from_attributes=True)
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@router.post("/", response_model=ParameterRead)
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def create_parameter(param: ParameterCreate, db: Session = Depends(get_db)):
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scen = db.query(Scenario).filter(Scenario.id == param.scenario_id).first()
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if not scen:
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raise HTTPException(status_code=404, detail="Scenario not found")
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distribution_id = param.distribution_id
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distribution_type = param.distribution_type
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distribution_parameters = param.distribution_parameters
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if distribution_id is not None:
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distribution = db.query(Distribution).filter(
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Distribution.id == distribution_id).first()
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if not distribution:
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raise HTTPException(
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status_code=404, detail="Distribution not found")
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distribution_type = distribution.distribution_type
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distribution_parameters = distribution.parameters or None
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new_param = Parameter(
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scenario_id=param.scenario_id,
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name=param.name,
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value=param.value,
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distribution_id=distribution_id,
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distribution_type=distribution_type,
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distribution_parameters=distribution_parameters,
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)
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db.add(new_param)
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db.commit()
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db.refresh(new_param)
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return new_param
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@router.get("/", response_model=List[ParameterRead])
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def list_parameters(db: Session = Depends(get_db)):
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return db.query(Parameter).all()
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