# -*- 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 FpTankSection(models.Model):
    """A user-defined grouping of tanks (e.g. "Steel Line", "Aluminum Line",
    "Specialty Line").

    Sections give the shop a familiar way to slice the tank list: every shop
    organises its tanks differently — by metal, by chemistry family, by
    physical aisle, or by customer programme — and a fixed taxonomy never
    fits. Sections are free-form, renameable, and per-facility.
    """
    _name = 'fusion.plating.tank.section'
    _description = 'Fusion Plating — Tank Section'
    _order = 'sequence, name'

    name = fields.Char(
        string='Section',
        required=True,
        translate=True,
    )
    sequence = fields.Integer(
        string='Sequence',
        default=10,
    )
    facility_id = fields.Many2one(
        'fusion.plating.facility',
        string='Facility',
        ondelete='restrict',
    )
    color = fields.Integer(
        string='Color',
        default=0,
    )
    description = fields.Text(
        string='Description',
        translate=True,
    )
    active = fields.Boolean(default=True)

    tank_ids = fields.One2many(
        'fusion.plating.tank',
        'section_id',
        string='Tanks',
    )
    tank_count = fields.Integer(
        compute='_compute_tank_count',
    )

    @api.depends('tank_ids')
    def _compute_tank_count(self):
        for rec in self:
            rec.tank_count = len(rec.tank_ids)

    def action_view_tanks(self):
        self.ensure_one()
        return {
            'name': self.name,
            'type': 'ir.actions.act_window',
            'res_model': 'fusion.plating.tank',
            'view_mode': 'list,kanban,form',
            'domain': [('section_id', '=', self.id)],
            'context': {'default_section_id': self.id},
        }