69 lines
3.5 KiB
Python
69 lines
3.5 KiB
Python
"""Validation of operator fiscal-context entries (facts the ERP does not know). Pure; shared by the Hub API, the importer CLI and the resolver."""
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import json
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SCOPES = ("COMPANY", "GROUP", "NCM", "PRODUCT")
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ENUMS = {
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"product_role": {"RESALE", "OWN_PRODUCTION", "INPUT", "SERVICE"},
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"st_status": {"SUBJECT", "NOT_SUBJECT"},
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"st_withheld": {"Y", "N"},
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"icms_treatment": {"TAXED", "EXEMPT", "NOT_TAXED", "ST_WITHHELD", "SUSPENDED", "DEFERRED"},
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# MIXED_OR_DYNAMIC: purchases are not predominantly intra- or interstate, so no single
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# static entry CFOP is fiscally correct for all operations (section 0, AI semantic layer V1).
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"entry_scope": {"INTRA", "INTER", "MIXED_OR_DYNAMIC"},
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"rounding": {"A", "T"},
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"piscofins": {"N", "S"},
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"incidence": {"NENHUMA"},
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"origin": {str(i) for i in range(9)},
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"store_ipi_profile": {"POPULATE_REFERENCE_RATE", "LEAVE_NOT_APPLICABLE"},
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}
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PROFILE_KEYS = {"pis_in_cst", "pis_out_cst", "pis_rate", "cofins_in_cst", "cofins_out_cst", "cofins_rate"}
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FREE_KEYS = {"ncm", "cest", "ex_tipi", "icms_rate", "credit_rate", "cst_ipi", "service_cfop", "pis_cofins_profile"}
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ALLOWED_KEYS = set(ENUMS) | FREE_KEYS
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PRODUCT_ONLY = {"ncm"}
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COMPANY_ONLY = {"store_ipi_profile"}
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NCM_KEYS = {"cest", "ex_tipi"} # tied to the NCM tables: answered per NCM or per product # an NCM answer is always about one product
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def validate_entry(entry):
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"""Returns (normalized_entry, error). error is None when valid."""
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scope = str(entry.get("scope", "")).strip().upper()
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key = str(entry.get("key", "")).strip()
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value = entry.get("value")
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value = "" if value is None else str(value).strip()
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scope_key = str(entry.get("scope_key") or "").strip()
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if scope not in SCOPES:
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return None, f"scope must be one of {SCOPES}"
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if key not in ALLOWED_KEYS:
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return None, f"unknown key {key!r}"
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if scope != "COMPANY" and not scope_key:
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return None, "scope_key is required for GROUP/NCM/PRODUCT scope"
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if key in COMPANY_ONLY and scope != "COMPANY":
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return None, f"{key} is a COMPANY-scope answer"
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if key in PRODUCT_ONLY and scope != "PRODUCT":
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return None, f"{key} is a PRODUCT-scope answer"
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if key in NCM_KEYS and scope not in ("PRODUCT", "NCM"):
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return None, f"{key} can only be answered for a PRODUCT or an NCM"
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if not value:
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return None, "value is empty"
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if key in ENUMS and value.upper() not in ENUMS[key] and value not in ENUMS[key]:
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return None, f"{key} must be one of {sorted(ENUMS[key])}"
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if key in ENUMS:
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value = value.upper() if key != "origin" else value
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if key == "ncm" and not (value.isdigit() and len(value) == 8):
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return None, "ncm must be 8 digits"
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if key == "cest" and value.upper() != "NONE" and not (value.replace(".", "").isdigit() and len(value.replace(".", "")) == 7):
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return None, "cest must be 7 digits or NONE"
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if key in ("icms_rate", "credit_rate"):
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try:
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float(value.replace(",", "."))
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except ValueError:
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return None, f"{key} must be numeric"
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if key == "pis_cofins_profile":
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try:
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prof = json.loads(value)
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except ValueError:
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return None, "pis_cofins_profile must be JSON"
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if not isinstance(prof, dict) or not prof or set(prof) - PROFILE_KEYS:
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return None, f"pis_cofins_profile keys must be a non-empty subset of {sorted(PROFILE_KEYS)}"
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return {"scope": scope, "scope_key": scope_key if scope != "COMPANY" else "", "key": key, "value": value, "reason": (entry.get("reason") or "").strip() or None}, None
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