# -*- 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 FpSerial(models.Model):
    """Serial number registry.

    One record per "occurrence of a part on an order line". The same part
    ordered six months later gets a different serial. The serial is the
    common thread linking the SO line to the MO, Delivery, and Invoice
    records it spawns downstream.

    Most serials are customer-supplied (pass-through from the customer's
    own end-user); a smaller share are shop-generated via the sequence.
    The registry is optional — SO lines can carry no serial at all.
    """
    _name = 'fp.serial'
    _description = 'Fusion Plating — Serial Number'
    _inherit = ['mail.thread', 'mail.activity.mixin']
    _order = 'create_date desc, id desc'
    _rec_name = 'name'

    name = fields.Char(
        required=True,
        tracking=True,
        help='Customer-supplied serial (most common) or shop-generated '
             'sequence value. Typed-in values are accepted as-is.',
    )
    company_id = fields.Many2one(
        'res.company', required=True,
        default=lambda s: s.env.company,
    )
    sale_order_line_id = fields.Many2one(
        'sale.order.line',
        string='Source Sale Order Line',
        ondelete='set null',
        copy=False,
        tracking=True,
    )
    sale_order_id = fields.Many2one(
        related='sale_order_line_id.order_id',
        store=True,
        string='Sale Order',
    )
    customer_id = fields.Many2one(
        related='sale_order_line_id.order_id.partner_id',
        store=True,
        string='Customer',
    )
    part_id = fields.Many2one(
        related='sale_order_line_id.x_fc_part_catalog_id',
        store=True,
        string='Part',
    )
    notes = fields.Text(string='Notes')

    # Reverse link to invoice lines — safe here because account.move.line
    # lives in this same module. Production (mrp) and delivery (logistics)
    # reverse links are defined in their own modules' fp_serial inherits
    # to keep module load order consistent.
    invoice_line_ids = fields.One2many(
        'account.move.line', 'x_fc_serial_id',
        string='Invoice Lines',
    )
    invoice_ids = fields.Many2many(
        'account.move',
        compute='_compute_invoice_ids',
        string='Invoices',
    )

    invoice_count = fields.Integer(compute='_compute_counts')
    # production_count / delivery_count are declared in the inheriting
    # modules (bridge_mrp / logistics) so the O2Ms exist alongside them.

    _sql_constraints = [
        ('fp_serial_name_company_uniq',
         'unique(company_id, name)',
         'Serial number must be unique within the company.'),
    ]

    # ---- Computes ------------------------------------------------------------

    @api.depends('invoice_line_ids.move_id')
    def _compute_counts(self):
        # Base compute sets invoice_count only. bridge_mrp + logistics
        # override this to also populate production_count / delivery_count.
        for rec in self:
            rec.invoice_count = len(rec.invoice_line_ids.mapped('move_id'))

    @api.depends('invoice_line_ids.move_id')
    def _compute_invoice_ids(self):
        for rec in self:
            rec.invoice_ids = rec.invoice_line_ids.mapped('move_id')

    # ---- Actions -------------------------------------------------------------

    def action_view_sale_order(self):
        self.ensure_one()
        if not self.sale_order_id:
            return False
        return {
            'type': 'ir.actions.act_window',
            'res_model': 'sale.order',
            'res_id': self.sale_order_id.id,
            'view_mode': 'form',
        }

    def action_view_productions(self):
        self.ensure_one()
        return {
            'type': 'ir.actions.act_window',
            'name': _('Manufacturing Orders'),
            'res_model': 'mrp.production',
            'domain': [('id', 'in', self.production_ids.ids)],
            'view_mode': 'list,form',
        }

    def action_view_deliveries(self):
        self.ensure_one()
        return {
            'type': 'ir.actions.act_window',
            'name': _('Deliveries'),
            'res_model': 'fusion.plating.delivery',
            'domain': [('id', 'in', self.delivery_ids.ids)],
            'view_mode': 'list,form',
        }

    def action_view_invoices(self):
        self.ensure_one()
        return {
            'type': 'ir.actions.act_window',
            'name': _('Invoices'),
            'res_model': 'account.move',
            'domain': [('id', 'in', self.invoice_ids.ids)],
            'view_mode': 'list,form',
        }

    def action_view_part(self):
        self.ensure_one()
        if not self.part_id:
            return False
        return {
            'type': 'ir.actions.act_window',
            'res_model': 'fp.part.catalog',
            'res_id': self.part_id.id,
            'view_mode': 'form',
        }