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>
33 lines
1010 B
Python
33 lines
1010 B
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 FusionBillingMetric(models.Model):
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"""A billable metric (CPU-seconds, API calls, messages, tokens ...).
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Defines how raw usage is aggregated within a billing period. See spec §5.1 / §6.
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"""
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_name = "fusion.billing.metric"
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_description = "Fusion Billing — Billable Metric"
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_order = "code"
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name = fields.Char(required=True)
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code = fields.Char(required=True, index=True)
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aggregation = fields.Selection(
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[
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("sum", "Sum"),
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("max", "Max"),
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("last", "Last value"),
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("unique_count", "Unique count"),
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],
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default="sum", required=True,
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)
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unit_label = fields.Char(help="e.g. CPU-seconds, API calls, messages, tokens.")
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rounding = fields.Float(default=1.0)
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active = fields.Boolean(default=True)
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_code_uniq = models.Constraint("unique(code)", "Metric code must be unique.")
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