# -*- coding: utf-8 -*-

from odoo import models, fields, api
from datetime import date
import base64
class SOS_Shelflife_Material_Register(models.Model):
    _name = 'sos_shelflife_register'
    _description = 'Shelf Life Register'


    name = fields.Many2one('sos_material',string="Material Name", required=True)
    quantity = fields.Float(string="Quantity")
    expiry_date = fields.Date(string="Expiry Date")
    ir_ref_no = fields.Many2one('sos_ir',string="Inward Ref No")
    remaining_days = fields.Integer(string="Remaining days to expire", compute="_compute_remaining_days", store=True)

    @api.depends('expiry_date')
    def _compute_remaining_days(self):
        today = date.today()
        for record in self:
            if record.expiry_date:
                delta = (record.expiry_date - today).days
                record.remaining_days = max(0, delta)  # don't show negative days
            else:
                record.remaining_days = 0
    def action_generate_expiry_report(self):
        expiring_materials = self.search([
            ('remaining_days', '<', 7),
            ('remaining_days', '>', 0)
        ])
        if not expiring_materials:
            return

        # Build HTML table
        table_rows = ''.join([
            f"""
            <tr>
                <td>{material.name.part_no or ''}</td>
                <td>{material.expiry_date or ''}</td>
                <td>{material.remaining_days or ''}</td>
            </tr>
            """
            for material in expiring_materials
        ])

        html_body = f"""
            <p>Dear Team,</p>
            <p>Below is the weekly report of materials expiring within 7 days:</p>
            <table class="table" border="1" cellpadding="5" cellspacing="0" style="border-collapse: collapse;">
                <thead>
                    <tr>
                        <th>Material Name</th>
                        <th>Expiry Date</th>
                        <th>Remaining Days to Expire</th>
                    </tr>
                </thead>
                <tbody>
                    {table_rows}
                </tbody>
            </table><br></br>
            <p>Regards,<br/>Slink Admin</p>
        """

        # Get users in the group
        group = self.env.ref('sos_inventory.sos_scg_group_user')
        users = self.env['res.users'].search([('groups_id', 'in', group.id)])
        recipient_emails = ','.join(filter(None, users.mapped('email')))

        # Create and send the email directly
        mail_template = self.env['mail.template'].create({
            'name': 'HTML Shelf Life Expiry Report',
            'model_id': self.env['ir.model']._get(self._name).id,
            'subject': f'Shelf Life Expiry Report - {date.today().strftime("%Y-%m-%d")}',
            'email_from': self.env.user.email,
            'email_to': recipient_emails,
            'body_html': html_body,
        })

        mail_template.send_mail(
            res_id=expiring_materials[0].id,  # Just link to one of the records
            force_send=True
        )