# Part of Odoo. See LICENSE file for full copyright and licensing details.

from datetime import datetime

from odoo import api, fields, models, _
from odoo.exceptions import ValidationError
from odoo.fields import Domain


class HrLeaveAllocation(models.Model):
    _inherit = 'hr.leave.allocation'

    @api.model
    def default_get(self, fields):
        res = super().default_get(fields)
        if 'holiday_status_id' in fields and self.env.context.get('deduct_extra_hours'):
            domain = Domain('overtime_deductible', '=', True) & Domain('requires_allocation', '=', True)
            if self.env.context.get('deduct_extra_hours_employee_request', False):
                # Prevent loading manager allocated time off type in self request contexts
                domain &= Domain('employee_requests', '=', True)
            leave_type = self.env['hr.leave.type'].search(domain, limit=1)
            res['holiday_status_id'] = leave_type.id
        return res

    overtime_deductible = fields.Boolean(compute='_compute_overtime_deductible')
    employee_overtime = fields.Float(compute='_compute_employee_overtime', groups='base.group_user')

    @api.depends('holiday_status_id')
    def _compute_overtime_deductible(self):
        for allocation in self:
            allocation.overtime_deductible = allocation.holiday_status_id.overtime_deductible

    @api.depends('employee_id')
    def _compute_employee_overtime(self):
        diff_by_employee = self.employee_id._get_deductible_employee_overtime()
        for allocation in self:
            allocation.employee_overtime = diff_by_employee.get(allocation.employee_id, 0)

    @api.model_create_multi
    def create(self, vals_list):
        res = super().create(vals_list)
        deductible = res.employee_id._get_deductible_employee_overtime()
        for allocation in res:
            if allocation.overtime_deductible:
                if deductible[allocation.employee_id] < 0:
                    raise ValidationError(_('The employee does not have enough overtime hours to request this leave.'))
        return res

    def write(self, vals):
        res = super().write(vals)
        if 'number_of_days' not in vals:
            return res
        if not self.env.user.has_group("hr_holidays.group_hr_holidays_user") and any(allocation.state not in ('draft', 'confirm') for allocation in self):
            raise ValidationError(_('Only an Officer or Administrator is allowed to edit the allocation duration in this status.'))
        deductible = self.employee_id._get_deductible_employee_overtime()
        for allocation in self.sudo().filtered('overtime_deductible'):
            if deductible[allocation.employee_id] < 0:
                raise ValidationError(_('The employee does not have enough overtime hours to request this leave.'))
        return res

    def action_refuse(self):
        res = super().action_refuse()
        return res

    def _get_accrual_plan_level_work_entry_prorata(self, level, start_period, start_date, end_period, end_date):
        self.ensure_one()
        if level.frequency != 'worked_hours':
            return super()._get_accrual_plan_level_work_entry_prorata(level, start_period, start_date, end_period, end_date)
        datetime_min_time = datetime.min.time()
        start_dt = datetime.combine(start_date, datetime_min_time)
        end_dt = datetime.combine(end_date, datetime_min_time)

        # Search for any attendance overlapping the window
        attendances = self.env['hr.attendance'].sudo().search([
            ('employee_id', '=', self.employee_id.id),
            ('check_in', '<', end_dt),
            ('check_out', '>', start_dt),
        ])

        total_worked_hours = 0.0
        for attendance in attendances:
            total_worked_hours += attendance._get_worked_hours_in_range(start_dt, end_dt)

        return total_worked_hours