2b47bd8b10
Centralize billing for all NexaSystems services (NexaCloud, NexaDesk, NexaMaps, custom apps, memberships) on the Odoo 19 Enterprise instance, replacing Lago. The module adds only the metering + integration layer; native sale_subscription / account_accountant / payment_stripe do all the financial work (invoicing, HST, dunning, portal, credit notes, Stripe). Includes: - Design spec (docs/superpowers/specs/2026-05-27-nexa-billing-centralized-design.md): 6 locked decisions, architecture, data model, usage engine, Lago-shaped API, webhook control loop, NexaCloud pilot, phased dual-run migration. - Module scaffold: 7 fusion.billing.* models (service, account.link, metric, charge, usage, webhook, reconciliation), bearer-auth API controller shell, security ACLs, README. Compiles on Odoo 19.0; engine/API bodies are stubs pending the implementation plan. - CLAUDE.md rule #15: no sale.subscription model in Odoo 19 — a subscription is a sale.order(is_subscription) + sale.subscription.plan (verified live). Task 0 verified: a single Stripe account is shared across NexaCloud and all Lago providers, so no Stripe account/card migration is required. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
54 lines
1.9 KiB
Python
54 lines
1.9 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2026 Nexa Systems Inc.
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# License OPL-1
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from odoo import fields, models
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class FusionBillingCharge(models.Model):
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"""Maps a plan + metric to quota + overage pricing.
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This is where "5,000,000 included / $0.10 per 1k overage" (NexaMaps) or a
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NexaCloud CPU-seconds quota lives. Keyed by the shared ``plan_code`` the app
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references; Odoo owns the money, the app owns feature entitlements. See spec §5.1.
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"""
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_name = "fusion.billing.charge"
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_description = "Fusion Billing — Metered Charge (quota + overage)"
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_order = "plan_code, name"
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name = fields.Char(required=True)
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plan_code = fields.Char(
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required=True, index=True,
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help="Shared plan_code the source app references (matches a sale.subscription.plan).",
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)
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plan_id = fields.Many2one(
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"sale.subscription.plan",
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help="Optional link to the Odoo recurrence/plan for this charge.",
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)
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metric_id = fields.Many2one(
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"fusion.billing.metric", required=True, ondelete="restrict",
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)
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product_id = fields.Many2one(
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"product.product", help="Usage product invoiced for overage.",
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)
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included_quota = fields.Float(
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default=0.0, help="Units included before overage applies, per period.",
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)
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price_per_unit = fields.Monetary(help="Overage price per unit_batch.")
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unit_batch = fields.Float(
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default=1.0, help="Batch size for overage pricing, e.g. 1000 = priced per 1k.",
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)
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charge_model = fields.Selection(
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[
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("standard", "Standard (per unit)"),
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("graduated", "Graduated"),
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("package", "Package"),
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("volume", "Volume"),
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],
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default="standard", required=True,
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)
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currency_id = fields.Many2one(
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"res.currency", default=lambda self: self.env.company.currency_id,
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)
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active = fields.Boolean(default=True)
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