spb/air Public MIT

1# =============================================================================2# Projet : AIR — Accounting Intermediate Representation3# Auteur : Simon-Pierre Boucher4# Contact : contact@spboucher.ai5# Fichier : evaluator.py6# Description : ALSL v0.1 evaluator — matches policy `when` clauses against economic events.7# =============================================================================8"""Deterministic evaluation of ALSL `when` clauses against AIR events."""9from __future__ import annotations1011from alsl.model import ClassificationPolicy, PolicySet, TaxPolicy, WhenClause12from core.events import EconomicEvent13from core.money import Money141516def matches(when: WhenClause, event: EconomicEvent, subtotal: Money | None) -> bool:17    if when.event_type is not None and event.type.value != when.event_type:18        return False19    jurisdiction = event.tax.jurisdiction if event.tax else None20    if when.jurisdiction is not None and jurisdiction != when.jurisdiction:21        return False22    if when.jurisdiction_in is not None and jurisdiction not in when.jurisdiction_in:23        return False24    if when.min_amount is not None:25        if subtotal is None:26            return False27        if when.currency is not None and subtotal.currency != when.currency:28            return False29        if subtotal.amount < when.min_amount:30            return False31    return True323334def applicable_tax_policies(35    policies: PolicySet, event: EconomicEvent, subtotal: Money | None36) -> list[TaxPolicy]:37    return [p for p in policies.tax_policies if matches(p.when, event, subtotal)]383940def applicable_classifications(41    policies: PolicySet, event: EconomicEvent, subtotal: Money | None42) -> list[ClassificationPolicy]:43    return [44        p for p in policies.classification_policies45        if matches(p.when, event, subtotal)46    ]47