import calendar
from collections import defaultdict
from datetime import date, datetime, timedelta, time
from dateutil.relativedelta import relativedelta
import logging
import pytz
import uuid
from math import modf
from random import randint

from odoo import api, fields, models, _
from odoo.addons.resource.models.resource import Intervals, sum_intervals, string_to_datetime
from odoo.addons.resource.models.resource_mixin import timezone_datetime
from odoo.exceptions import UserError, AccessError
from odoo.osv import expression
from odoo.tools import DEFAULT_SERVER_DATETIME_FORMAT, float_utils, format_datetime

_logger = logging.getLogger(__name__)

class PlanningSlot(models.Model):
    _inherit = 'planning.slot'

    real_working_days_count = fields.Float(
        string='Real Working Days',
        compute='_compute_working_days_count',
        store=True,
        help='Number of working days available in the month, regardless of slot start and end dates'
    )

    @api.depends('start_datetime', 'end_datetime', 'resource_id', 'company_id')
    def _compute_working_days_count(self):
        for slot in self:
            if not slot.start_datetime:
                slot.real_working_days_count = 0
                continue

            # Obtener el primer día del mes
            start_of_month = slot.start_datetime.replace(day=1, hour=0, minute=0, second=0)
            # Obtener el último día del mes
            end_of_month = (start_of_month + relativedelta(months=1, days=-1)).replace(hour=23, minute=59, second=59)

            # Obtener el calendario de trabajo
            calendar = slot.resource_id.calendar_id or slot.company_id.resource_calendar_id

            if not calendar:
                slot.real_working_days_count = 0
                continue

            # Calcular los días laborables del mes completo
            real_working_days = calendar.get_work_duration_data(
                timezone_datetime(start_of_month),
                timezone_datetime(end_of_month),
                compute_leaves=True
            )
            
            # El resultado viene en horas, lo convertimos a días
            slot.real_working_days_count = real_working_days['hours'] / calendar.hours_per_day