from apps.wpm.models import SfLog, StLog, StSfLog
from apps.mtm.models import Shift, Mgroup
import datetime
from django.utils.timezone import localtime
from django.db.models import Sum

def make_sflogs(mgroup: Mgroup, start_date: datetime.date, end_date: datetime.date):
    for shift in Shift.objects.all():
        start_time_o = shift.start_time_o
        end_time_o = shift.end_time_o
        current_date = start_date
        while current_date <= end_date:
            start_time = datetime.datetime.combine(current_date, start_time_o)
            end_time = datetime.datetime.combine(current_date, end_time_o)
            if start_time > end_time:
                start_time -= datetime.timedelta(days=1)
            SfLog.objects.get_or_create(mgroup=mgroup, shift=shift, start_time=start_time, defaults={
                "mgroup": mgroup,
                "shift": shift,
                "start_time": start_time,
                "end_time": end_time,
            })
            current_date = current_date + datetime.timedelta(days=1)

def get_pcoal_val(year_s: int, month_s: int, day_s: int):
    """
    获取煤粉热值
    """
    sflog = SfLog.objects.filter(end_time__year=year_s, end_time__month=month_s, end_time__day=day_s).exclude(pcoal_val=None).first()
    if sflog:
        return sflog.coal_val
    return None