# -*- coding: utf-8 -*-
# Copyright 2026 Nexa Systems Inc.
# License OPL-1 (Odoo Proprietary License v1.0)
# Part of the Fusion Plating product family.

from odoo import fields, models


class FpCnscLicence(models.Model):
    """CNSC Licence record.

    The Canadian Nuclear Safety Commission (CNSC) regulates all nuclear
    activities in Canada. A plating / finishing supplier that works on
    nuclear items may hold — or be listed under — one or more CNSC
    licences:

        * Class II nuclear facility licence (on-site sources,
          irradiators, handling of nuclear substances)
        * Transport licence for nuclear substances
        * Export licence for controlled nuclear items

    This record tracks the licence number, issue and expiry dates, and
    any key conditions so the facility can manage renewals and
    compliance awareness.
    """
    _name = 'fusion.plating.cnsc.licence'
    _description = 'Fusion Plating — CNSC Licence'
    _inherit = ['mail.thread', 'mail.activity.mixin']
    _order = 'expiry_date, name'

    name = fields.Char(
        string='Title',
        required=True,
        tracking=True,
    )
    licence_number = fields.Char(
        string='Licence Number',
        required=True,
        tracking=True,
    )
    facility_id = fields.Many2one(
        'fusion.plating.facility',
        string='Facility',
        tracking=True,
    )
    company_id = fields.Many2one(
        'res.company',
        related='facility_id.company_id',
        store=True,
        readonly=True,
    )
    licence_type = fields.Selection(
        [
            ('class_ii_nuclear_facility', 'Class II Nuclear Facility'),
            ('transport', 'Transport of Nuclear Substances'),
            ('export', 'Export of Controlled Nuclear Items'),
            ('other', 'Other'),
        ],
        string='Licence Type',
        default='class_ii_nuclear_facility',
        required=True,
        tracking=True,
    )
    issue_date = fields.Date(
        string='Issue Date',
        tracking=True,
    )
    expiry_date = fields.Date(
        string='Expiry Date',
        tracking=True,
    )
    conditions = fields.Html(
        string='Licence Conditions',
    )
    state = fields.Selection(
        [
            ('active', 'Active'),
            ('expiring', 'Expiring Soon'),
            ('expired', 'Expired'),
            ('revoked', 'Revoked'),
        ],
        string='Status',
        default='active',
        required=True,
        tracking=True,
    )
    attachment_id = fields.Many2one(
        'ir.attachment',
        string='Licence Document',
    )
    active = fields.Boolean(default=True)

    _sql_constraints = [
        (
            'fp_cnsc_licence_number_uniq',
            'unique(licence_number, company_id)',
            'CNSC licence number must be unique per company.',
        ),
    ]