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79fa28e55d23a6e4163830c6bdce53f1b96dbfa7
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5 Commits

Author SHA1 Message Date
giles
79fa28e55d commerce: promo rules (percent/fixed/bundle/member) as relations (17 tests)
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Details 
promo.sx — four promo types as tagged tuples; per-promo discount is pure
integer arithmetic, but enumeration is relational: promo-discounto and
promo-applieso run forward ("which codes apply, for how much?") and backward
("which code yields this discount?"). project grounds the membero-bound promo.
applicable-promos / promo-amount-for deterministic helpers. Total 83/83.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
 2026-06-07 00:17:26 +00:00
giles
a0f3a1177e commerce: public session API + per-line audit + checkout stub (12 tests) — Phase 1 done
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Details 
api.sx — session facade {:ctx :cart}: commerce-add/remove/set-qty/total/
count/lines, commerce-can-add? catalog validation, commerce-explain per-line
audit breakdown, commerce-checkout Phase-3 stub. Completes Phase 1 (catalog +
cart + deterministic totals). Total 66/66 across 4 suites.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
 2026-06-06 23:46:51 +00:00
giles
29955831be commerce: deterministic subtotal + jurisdiction-relational tax (20 tests)
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Details 
price.sx — cart-subtotal (unit price = base + variant delta, default 0),
taxo facts indexed by (jurisdiction, product-class, customer-class) -> bps
queried both directions, apply-bps half-up integer rounding, cart-total
returning {:subtotal :discounts :tax :total} reproducible from
(context, cart). Total 54/54.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
 2026-06-06 23:45:05 +00:00
giles
35957d779f commerce: cart line items + add/remove/set-qty + relational view (18 tests)
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Details 
cart.sx — cart as an ordered list of (sku variant qty) lines. Pure
operations: cart-add (merge-or-append), cart-set-qty (0 removes),
cart-remove, with cart-qty/count/skus/empty? accessors. cart-lineo
exposes lines relationally via membero. Total 34/34.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
 2026-06-06 23:42:49 +00:00
giles
25f3734eab commerce: catalog facts + multidirectional relations + conformance harness (16 tests)
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Details 
catalog.sx — catalog snapshot (products/variants/stock as fact tuples),
relational accessors (producto/varianto/stocko, derived priceo/classo/
unit-priceo) usable forward and backward, deterministic catalog-price/
-class/-has? helpers. Money is integer minor units. conformance.sh runs
suites on the miniKanren stack and emits scoreboard.{json,md}.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
 2026-06-06 23:41:04 +00:00