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⚡ Bolt: Optimize string matching operations in execute_3_way_match#34

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bolt-optimize-3-way-match-string-ops-7094551231052328614
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⚡ Bolt: Optimize string matching operations in execute_3_way_match#34
kourdroid wants to merge 1 commit into
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bolt-optimize-3-way-match-string-ops-7094551231052328614

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💡 What: Refactored the execute_3_way_match engine to pre-compute normalized item descriptions and token sets for purchase orders and goods receipt records outside the main line-item processing loop. _match_score was updated to accept pre-computed token sets for intersection comparisons instead of performing regex replacements and string splitting dynamically.

🎯 Why: The previous implementation performed string manipulation (re.sub, str.lower, split()) and set instantiation on every PO and receipt candidate for every line item on the invoice. This resulted in redundant operations on the exact same strings leading to an $O(N \times M)$ overhead (where N is invoice line count and M is candidate line count). Pre-computing them drops the string manipulation overhead down to $O(N + M)$.

📊 Impact: Considerably reduces CPU time spent on string and regex operations, significantly dropping time complexity from $O(N \times M)$ to $O(N + M)$. Reduces response latency and computational load during large invoice processing.

🔬 Measurement: Verify by running pytest. No unit test changes were required, meaning functionality and outputs of execute_3_way_match remain identical to the previous unoptimized version.


PR created automatically by Jules for task 7094551231052328614 started by @kourdroid

Re-factor `execute_3_way_match` in `src/plugins/supply_chain.py` to pre-compute normalized descriptions and token sets for purchase order (PO) and goods receipt lines outside of the main loop. This changes the computational complexity of the string matching component from O(N*M) to O(N+M), which provides a significant speedup for invoices with many line items.
- Added optional token set parameters to `_match_score` to allow for fast set intersection.
- Updated `_find_best_match` to accept a list of pre-computed `(candidate, normalized_string, token_set)` tuples.
- Pre-compute tokens outside the invoice item iteration in `execute_3_way_match`.

Co-authored-by: kourdroid <36898160+kourdroid@users.noreply.github.com>
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