Spaces:
Sleeping
Sleeping
File size: 11,926 Bytes
6f0c329 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 | """
Invoice validation orchestrator.
Loads platform_configs.json once, runs all seven validators in SDD order,
wires outputs to downstream inputs, and returns a single consolidated result.
No business logic lives here — all decisions remain inside the validator modules.
"""
import importlib.util
import json
import os
# ---------------------------------------------------------------------------
# Module loader — handles filenames that contain spaces or hyphens
# ---------------------------------------------------------------------------
def _load_fn(filename, fn_name):
"""Import a function from a .py file by path."""
here = os.path.dirname(os.path.abspath(__file__))
path = os.path.join(here, filename)
spec = importlib.util.spec_from_file_location(filename, path)
mod = importlib.util.module_from_spec(spec)
spec.loader.exec_module(mod)
return getattr(mod, fn_name)
_run_vendor_validation = _load_fn("Vendor Validation.py", "run_vendor_validation")
_run_tax_id_validation = _load_fn("Tax - ID validation.py", "run_tax_id_validation")
_run_bank_validation = _load_fn("Bank validation.py", "run_bank_validation")
_run_date_sanity_checks = _load_fn("date_sanity.py", "run_date_sanity_checks")
_run_payment_terms_validation = _load_fn("payment terms valdiation.py", "run_payment_terms_validation")
_run_tax_amount_validation = _load_fn("tax validation.py", "run_tax_amount_validation")
_run_completeness_validation = _load_fn("completeness.py", "run_invoice_validation")
# ---------------------------------------------------------------------------
# Helpers
# ---------------------------------------------------------------------------
class _FieldProxy:
"""
Overlays computed attributes onto an existing extracted_fields object so
downstream validators can read Tax-ID results via the normal
getattr(extracted_fields, ...) pattern without mutating the original object.
Only non-None values are overlaid; None values fall through to the base
object (and its getattr default), which preserves the lenient defaults each
validator defines for fields it cannot always receive.
"""
__slots__ = ("_base", "_overlay")
def __init__(self, base, **overlay):
object.__setattr__(self, "_base", base)
object.__setattr__(self, "_overlay", {k: v for k, v in overlay.items() if v is not None})
def __getattr__(self, name):
overlay = object.__getattribute__(self, "_overlay")
if name in overlay:
return overlay[name]
return getattr(object.__getattribute__(self, "_base"), name)
def _load_platform_configs(path=None):
if path is None:
here = os.path.dirname(os.path.abspath(__file__))
path = os.path.join(here, "platform_configs.json")
with open(path, encoding="utf-8") as fh:
return json.load(fh)
def _collect(result, key):
"""Safely pull a list from a module result dict (returns [] if absent)."""
return result.get(key) or []
# ---------------------------------------------------------------------------
# Pipeline
# ---------------------------------------------------------------------------
def run_invoice_validation_pipeline(
*,
document,
extracted_fields,
vendors,
vendor_bank_accounts,
vendor_tax_ids,
entity,
line_items,
purchase_orders,
contracts,
tax_master_rows,
currency_seed_map,
platform_configs=None,
route_contexts=None,
actor_id=None,
):
"""
Run all seven validation modules in SDD order and return a consolidated result.
Parameters
----------
document : Invoice document object (needs .id, .tenant_id, .entity_id).
extracted_fields : VLM-extracted fields object.
vendors : Iterable of vendor records used for vendor matching.
vendor_bank_accounts : Iterable of vendor bank account records.
vendor_tax_ids : Iterable of vendor tax-ID records.
entity : The routing entity object (needs .country_code, .vat_id, .region_code).
line_items : Iterable of line-item records.
purchase_orders : Iterable of purchase-order records.
contracts : Iterable of contract records.
tax_master_rows : Iterable of tax-master records.
currency_seed_map : Dict mapping ISO currency code → row with minor_unit_value.
platform_configs : Pre-loaded config dict; loaded from platform_configs.json when None.
route_contexts : List of route-context strings forwarded to Vendor Validation.
actor_id : Actor identifier forwarded to Vendor Validation for audit.
Returns
-------
{
"risk_flags": [...], # aggregated, in execution order
"advisory_flags": [...], # aggregated, in execution order
"skipped_steps": [...], # aggregated, in execution order
"ops_alerts": [...], # operational alerts (e.g. tax_master_unconfigured)
"resolved_vendor_id": ...,
"module_results": {...}, # raw return dict from each module, keyed by name
}
"""
if platform_configs is None:
platform_configs = _load_platform_configs()
risk_flags = []
advisory_flags = []
skipped_steps = []
ops_alerts = []
module_results = {}
# ------------------------------------------------------------------
# Step 1 — Vendor Validation
# Runs first; produces resolved_vendor_id used by all downstream steps.
# ------------------------------------------------------------------
vendor_result = _run_vendor_validation(
document=document,
extracted_fields=extracted_fields,
vendors=vendors,
platform_configs=platform_configs,
route_contexts=route_contexts,
actor_id=actor_id,
)
module_results["vendor_validation"] = vendor_result
risk_flags.extend(_collect(vendor_result, "risk_flags"))
advisory_flags.extend(_collect(vendor_result, "advisory_flags"))
skipped_steps.extend(_collect(vendor_result, "skipped_steps"))
resolved_vendor_id = vendor_result.get("resolved_vendor_id")
# Resolve the vendor object so downstream modules receive it directly.
resolved_vendor = next(
(v for v in vendors if getattr(v, "id", None) == resolved_vendor_id),
None,
) if resolved_vendor_id else None
# ------------------------------------------------------------------
# Step 2 — Tax ID Validation
# Depends on resolved_vendor_id and the resolved vendor object.
# ------------------------------------------------------------------
tax_id_result = _run_tax_id_validation(
document=document,
extracted_fields=extracted_fields,
vendor=resolved_vendor,
vendor_tax_ids=vendor_tax_ids,
resolved_vendor_id=resolved_vendor_id,
platform_configs=platform_configs,
)
module_results["tax_id_validation"] = tax_id_result
risk_flags.extend(_collect(tax_id_result, "risk_flags"))
advisory_flags.extend(_collect(tax_id_result, "advisory_flags"))
skipped_steps.extend(_collect(tax_id_result, "skipped_steps"))
# Enrich extracted_fields with Tax-ID results so Tax Validation can read
# sender_tax_id_inferred_family / _format_valid / _checksum_valid via its
# normal getattr(extracted_fields, ...) pattern.
enriched_fields = _FieldProxy(
extracted_fields,
sender_tax_id_inferred_family=tax_id_result.get("invoice_tax_id_inferred_type"),
sender_tax_id_format_valid=tax_id_result.get("invoice_tax_id_format_valid"),
sender_tax_id_checksum_valid=tax_id_result.get("invoice_tax_id_checksum_valid"),
)
# ------------------------------------------------------------------
# Step 3 — Bank Validation
# Depends on resolved_vendor_id.
# ------------------------------------------------------------------
bank_result = _run_bank_validation(
document=document,
extracted_fields=extracted_fields,
vendor_bank_accounts=vendor_bank_accounts,
resolved_vendor_id=resolved_vendor_id,
platform_configs=platform_configs,
)
module_results["bank_validation"] = bank_result
risk_flags.extend(_collect(bank_result, "risk_flags"))
advisory_flags.extend(_collect(bank_result, "advisory_flags"))
skipped_steps.extend(_collect(bank_result, "skipped_steps"))
# ------------------------------------------------------------------
# Step 4 — Date Sanity Checks
# Independent of vendor resolution.
# ------------------------------------------------------------------
date_result = _run_date_sanity_checks(
document=document,
extracted_fields=extracted_fields,
platform_configs=platform_configs,
)
module_results["date_sanity"] = date_result
risk_flags.extend(_collect(date_result, "risk_flags"))
advisory_flags.extend(_collect(date_result, "advisory_flags"))
skipped_steps.extend(_collect(date_result, "skipped_steps"))
# ------------------------------------------------------------------
# Step 5 — Payment Terms Validation
# Depends on resolved_vendor_id and the resolved vendor object.
# ------------------------------------------------------------------
payment_terms_result = _run_payment_terms_validation(
document=document,
extracted_fields=extracted_fields,
vendor=resolved_vendor,
purchase_orders=purchase_orders,
contracts=contracts,
resolved_vendor_id=resolved_vendor_id,
platform_configs=platform_configs,
)
module_results["payment_terms_validation"] = payment_terms_result
risk_flags.extend(_collect(payment_terms_result, "risk_flags"))
advisory_flags.extend(_collect(payment_terms_result, "advisory_flags"))
skipped_steps.extend(_collect(payment_terms_result, "skipped_steps"))
# ------------------------------------------------------------------
# Step 6 — Tax Amount Validation
# Depends on resolved vendor object and enriched_fields from Step 2.
# ------------------------------------------------------------------
tax_result = _run_tax_amount_validation(
document=document,
extracted_fields=enriched_fields,
line_items=line_items,
vendor=resolved_vendor,
entity=entity,
tax_master_rows=tax_master_rows,
platform_configs=platform_configs,
)
module_results["tax_validation"] = tax_result
risk_flags.extend(_collect(tax_result, "risk_flags"))
advisory_flags.extend(_collect(tax_result, "advisory_flags"))
skipped_steps.extend(_collect(tax_result, "skipped_steps"))
ops_alerts.extend(_collect(tax_result, "ops_alerts"))
# ------------------------------------------------------------------
# Step 7 — Completeness / Math Cross-check
# Independent of vendor resolution.
# ------------------------------------------------------------------
completeness_result = _run_completeness_validation(
document=document,
extracted_fields=extracted_fields,
line_items=line_items,
currency_seed_map=currency_seed_map,
platform_configs=platform_configs,
)
module_results["completeness"] = completeness_result
risk_flags.extend(_collect(completeness_result, "risk_flags"))
advisory_flags.extend(_collect(completeness_result, "advisory_flags"))
skipped_steps.extend(_collect(completeness_result, "skipped_steps"))
return {
"risk_flags": risk_flags,
"advisory_flags": advisory_flags,
"skipped_steps": skipped_steps,
"ops_alerts": ops_alerts,
"resolved_vendor_id": resolved_vendor_id,
"module_results": module_results,
}
|