"""Activity data model."""

from dataclasses import dataclass
from datetime import datetime


@dataclass
class Activity:
    """A unit of work in the schedule."""

    task_id: str
    proj_id: str
    task_code: str
    task_name: str
    task_type: str
    wbs_id: str | None = None
    target_start_date: datetime | None = None
    target_end_date: datetime | None = None
    act_start_date: datetime | None = None
    act_end_date: datetime | None = None
    total_float_hr_cnt: float | None = None
    driving_path_flag: bool = False
    status_code: str | None = None