# -*- 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')