from __future__ import annotations

import logging
from typing import TYPE_CHECKING

from apscheduler.triggers.date import DateTrigger

if TYPE_CHECKING:
    import datetime

    from apscheduler.job import Job

logger: logging.Logger = logging.getLogger(__name__)


def calculate(job: Job) -> str:
    """Calculate the time left for a job.

    Args:
        job: The job to calculate the time for.

    Returns:
        str: The time left for the job.
    """
    trigger_time: datetime.datetime | None = (
        job.trigger.run_date if isinstance(job.trigger, DateTrigger) else job.next_run_time
    )
    if trigger_time is None:
        logger.error("Couldn't calculate time for job: %s: %s", job.id, job.name)
        logger.error("State: %s", job.__getstate__() if hasattr(job, "__getstate__") else "No state")
        return "Couldn't calculate time"

    return f"<t:{int(trigger_time.timestamp())}:R>"


def calc_time(time: datetime.datetime) -> str:
    """Convert a datetime object to a Discord timestamp.

    Args:
        time: The datetime object to convert.

    Returns:
        str: The Discord timestamp.
    """
    return f"<t:{int(time.timestamp())}:R>"