# -*- 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 api, fields, models


class FpCustomerSpec(models.Model):
    """Customer specification library entry.

    Holds the metadata about a specification (industry, customer, or
    internal) so jobs and process types can reference it. The actual
    document lives at document_url — could be a SharePoint link, a
    Google Drive URL, or any other location the shop already uses.
    """
    _name = 'fusion.plating.customer.spec'
    _description = 'Fusion Plating — Customer Specification'
    _inherit = ['mail.thread', 'mail.activity.mixin']
    _order = 'spec_type, code, revision desc'
    _rec_name = 'display_name'

    name = fields.Char(
        string='Title',
        required=True,
        tracking=True,
    )
    display_name = fields.Char(
        compute='_compute_display_name',
        store=True,
    )
    code = fields.Char(
        string='Spec Code',
        required=True,
        tracking=True,
        help='e.g. AMS 2404, ASTM B733, MIL-C-26074',
    )
    revision = fields.Char(
        string='Revision',
        tracking=True,
    )
    effective_date = fields.Date(
        string='Effective Date',
        tracking=True,
    )
    partner_id = fields.Many2one(
        'res.partner',
        string='Customer',
        help='Leave blank for industry / internal specs.',
    )
    process_type_ids = fields.Many2many(
        'fusion.plating.process.type',
        'fp_customer_spec_process_rel',
        'spec_id',
        'process_type_id',
        string='Applicable Processes',
    )
    spec_type = fields.Selection(
        [
            ('industry', 'Industry / Standard'),
            ('customer', 'Customer'),
            ('internal', 'Internal'),
        ],
        string='Type',
        default='industry',
        required=True,
        tracking=True,
    )
    document_url = fields.Char(
        string='Document URL',
        help='Link to the controlled copy of the specification (SharePoint, '
             'Google Drive, etc.).',
    )
    notes = fields.Html(
        string='Notes',
    )
    recipe_ids = fields.Many2many(
        'fusion.plating.process.node',
        'fp_customer_spec_recipe_rel',
        'spec_id', 'recipe_id',
        domain="[('node_type', '=', 'recipe'), ('parent_id', '=', False)]",
        string='Applicable Recipes',
        help='Recipes that can produce work to this specification. '
             'Many-to-many — one spec can cover multiple processes; '
             'one recipe can satisfy multiple specs.',
    )
    print_on_cert = fields.Boolean(
        string='Print on Certificate',
        default=True,
        help="When enabled, this spec's code+revision appear on the CoC "
             'when the spec is selected on the SO line.',
    )
    company_id = fields.Many2one(
        'res.company',
        string='Company',
        default=lambda self: self.env.company,
    )
    active = fields.Boolean(default=True)

    _sql_constraints = [
        (
            'fp_customer_spec_code_rev_uniq',
            'unique(code, revision, company_id)',
            'A specification at the same revision must be unique per company.',
        ),
    ]

    @api.depends('code', 'revision', 'name')
    def _compute_display_name(self):
        for rec in self:
            parts = [rec.code or '']
            if rec.revision:
                parts.append(f'Rev {rec.revision}')
            if rec.name:
                parts.append(f'— {rec.name}')
            rec.display_name = ' '.join(p for p in parts if p)