from pydantic import BaseModel
from typing import Optional
from datetime import datetime

class NormalizedVitals(BaseModel):
    device_id: str
    patient_id: str
    timestamp: datetime
    ip_address: Optional[str] = None
    heart_rate: Optional[float] = None
    spo2: Optional[float] = None
    systolic_bp: Optional[float] = None
    diastolic_bp: Optional[float] = None
    map_bp: Optional[float] = None
    respiratory_rate: Optional[float] = None
    temperature: Optional[float] = None
    present_fields: Optional[list] = None
    # Patient demographics parsed from HL7 PID/PV1 segments
    patient_name:   Optional[str] = None   # PID-5: "Given Family"
    patient_gender: Optional[str] = None   # PID-8: M / F / U
    patient_dob:    Optional[str] = None   # PID-7: YYYYMMDD
    bed_id:         Optional[str] = None   # PV1-3: bed / room ID

class DeviceStatus(BaseModel):
    device_id: str
    ip_address: str
    status: str
    last_seen: datetime
    
    class Config:
        from_attributes = True

class TransmissionLogResponse(BaseModel):
    id: int
    reading_id: int
    status: str
    response_code: Optional[int]
    error_message: Optional[str]
    timestamp: datetime

    class Config:
        from_attributes = True