48 lines
2.1 KiB
Python
48 lines
2.1 KiB
Python
"""Evidence reconstruction for historical KB conflicts.
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The seed payload contains the current 90 observable conflicts but not the
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identity/evidence rows for the remaining 73 historical conflict records. This
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module makes that limitation explicit instead of fabricating identities.
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"""
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from collections import Counter
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RESOLVED_EQUIVALENT_PRODUCT = "RESOLVED_EQUIVALENT_PRODUCT"
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FALSE_MATCH = "FALSE_MATCH"
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VALID_NCM_CONFLICT = "VALID_NCM_CONFLICT"
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STALE_OBSERVATION = "STALE_OBSERVATION"
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INSUFFICIENT_EVIDENCE = "INSUFFICIENT_EVIDENCE"
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def reconstruct_historical_conflicts(payload: dict, historical_count: int = 73) -> dict:
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products = payload.get("products", [])
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gtin_count = sum(1 for product in products if product.get("gtin"))
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fingerprint_count = sum(1 for product in products if product.get("fingerprint"))
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evidence_summary = {
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"payload_products": len(products),
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"payload_gtin_products": gtin_count,
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"payload_fingerprint_products": fingerprint_count,
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"fields_available": ["gtin", "fingerprint", "normalized_description", "unit", "ncm", "observations"],
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"historical_identity_records_found": 0,
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}
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rows = []
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for index in range(1, historical_count + 1):
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rows.append({
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"historical_conflict_id": f"HISTORICAL-{index:03d}",
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"classification": INSUFFICIENT_EVIDENCE,
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"evidence_search": evidence_summary,
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"resolution": "PRESERVE_CONFLICT",
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"reason": "original conflict identity/evidence row is absent from available artifacts; no NCM selected",
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})
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return {
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"artifact": "KB_HISTORICAL_CONFLICT_AUDIT_V1",
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"historical_conflicts_before": historical_count,
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"historical_conflicts_resolved": 0,
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"historical_conflicts_remaining": historical_count,
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"classification_counts": dict(Counter(row["classification"] for row in rows)),
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"conflicts": rows,
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"current_observable_conflicts_preserved": 90,
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"current_conflict_policy": "NCM_CONFLICT rows remain blocked; no majority resolution",
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"evidence_complete": False,
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}
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