from datetime import datetime, timedelta
from typing import Optional

from sqlmodel import SQLModel, Field


class ProjectBase(SQLModel):
    """Superclass model which all project classes have in common."""

    name: str  # = Field(description="Name of the project", example="Learning")


class ProjectCreate(ProjectBase):
    """Model used when a user creates a new project."""
    pass


class Project(ProjectBase, table=True):
    """Model used inside the database."""

    id: Optional[int] = Field(default=None, primary_key=True)


class ProjectRead(ProjectCreate):
    """Model used when querying information about a module."""

    id: int
    name: str  # = Field(description="Name of the project", example="Learning")
    start_date: datetime  # = Field(description="Project creation date", example=datetime.now())
    duration: timedelta  # = Field(description="Total tracked duration", example=timedelta(days=3, hours=5, minutes=47))
    records: int  # = Field(description="Total number of trackings/records", example=42)

    # class Config:  # TODO: Adding this config may be done with a decorator
    #     """pydantic config"""
    #     json_encoders = {
    #         # Serialize timedeltas as ISO 8601 and not as float seconds, which is the default
    #         timedelta: timedelta_isoformat,
    #     }