feat(configurator): fp.pricing.rule — formula-based pricing engine with complexity surcharges

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

fusion-plating/fusion_plating_configurator/models/__init__.py

@@ -6,3 +6,6 @@
 from . import fp_treatment
 from . import fp_part_catalog
 from . import fp_coating_config
+from . import fp_pricing_complexity_surcharge
+from . import fp_pricing_rule
+from . import sale_order

fusion-plating/fusion_plating_configurator/models/fp_pricing_complexity_surcharge.py

@@ -0,0 +1,25 @@
+# -*- 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 FpPricingComplexitySurcharge(models.Model):
+    """Complexity-based surcharge line on a pricing rule."""
+    _name = 'fp.pricing.complexity.surcharge'
+    _description = 'Fusion Plating — Pricing Complexity Surcharge'
+    _order = 'complexity'
+
+    rule_id = fields.Many2one('fp.pricing.rule', string='Pricing Rule', required=True, ondelete='cascade')
+    complexity = fields.Selection(
+        [('simple', 'Simple'), ('moderate', 'Moderate'), ('complex', 'Complex'), ('very_complex', 'Very Complex')],
+        string='Complexity', required=True,
+    )
+    surcharge_percent = fields.Float(string='Surcharge %', help='Additional percentage on top of base price.')
+
+    _sql_constraints = [
+        ('fp_pricing_surcharge_rule_complexity_uniq', 'unique(rule_id, complexity)',
+         'Only one surcharge per complexity level per rule.'),
+    ]

fusion-plating/fusion_plating_configurator/models/fp_pricing_rule.py

@@ -0,0 +1,54 @@
+# -*- 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 FpPricingRule(models.Model):
+    """Formula-based pricing rule.
+
+    Rules are matched by coating config, substrate material, and
+    certification level. The first matching rule (by sequence) wins.
+    Global rules (no filters set) act as fallbacks.
+    """
+    _name = 'fp.pricing.rule'
+    _description = 'Fusion Plating — Pricing Rule'
+    _order = 'sequence, id'
+
+    name = fields.Char(string='Rule Name', required=True)
+    coating_config_id = fields.Many2one('fp.coating.config', string='Coating Config',
+        help='Leave blank for a global rule.')
+    substrate_material = fields.Selection(
+        [('aluminium', 'Aluminium'), ('steel', 'Steel'), ('stainless', 'Stainless Steel'),
+         ('copper', 'Copper'), ('titanium', 'Titanium'), ('other', 'Other')],
+        string='Substrate Material', help='Leave blank to match all materials.',
+    )
+    certification_level = fields.Selection(
+        [('commercial', 'Commercial'), ('mil_spec', 'Mil-Spec'),
+         ('nadcap', 'Nadcap'), ('nuclear', 'Nuclear (CSA N299)')],
+        string='Certification Level', help='Leave blank to match all levels.',
+    )
+    pricing_method = fields.Selection(
+        [('per_sqin', 'Per Square Inch'), ('per_sqft', 'Per Square Foot'),
+         ('per_piece', 'Per Piece'), ('flat_rate', 'Flat Rate')],
+        string='Pricing Method', required=True, default='per_sqin',
+    )
+    currency_id = fields.Many2one('res.currency', string='Currency',
+        default=lambda self: self.env.company.currency_id)
+    base_rate = fields.Monetary(string='Base Rate', currency_field='currency_id',
+        help='Price per unit (sq in, sq ft, piece, or flat).')
+    thickness_factor = fields.Float(string='Thickness Factor', default=1.0,
+        help='Multiplier per mil of coating thickness. 1.0 = no adjustment.')
+    complexity_surcharge_ids = fields.One2many('fp.pricing.complexity.surcharge', 'rule_id',
+        string='Complexity Surcharges')
+    masking_rate_per_zone = fields.Monetary(string='Masking Rate / Zone', currency_field='currency_id')
+    setup_fee = fields.Monetary(string='Setup Fee', currency_field='currency_id',
+        help='One-time setup fee per batch.')
+    minimum_charge = fields.Monetary(string='Minimum Charge', currency_field='currency_id',
+        help='Floor price.')
+    rush_surcharge_percent = fields.Float(string='Rush Surcharge %')
+    sequence = fields.Integer(string='Sequence', default=10)
+    active = fields.Boolean(string='Active', default=True)
+    notes = fields.Text(string='Notes')