7 Commits

Author	SHA1	Message	Date
giles	57066a9ed0	commerce: composed priced quote (price+promo+stacking) (13 tests) ... quote.sx — cart-quote composes the pipeline into a deterministic {:subtotal :discount :tax :total :codes} with total = subtotal - discount + tax. Explicit tax policy: tax on gross per-line amounts (discount reduces payable, not the tax base). This quote is the value the Phase-3 order flow carries. Total 112/112 across 7 suites. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-07 00:26:21 +00:00
giles	f71af498cf	commerce: stacking precedence + best-price selection + backward query (16 tests) — Phase 2 done ... stack.sx — precedence as a separate selection layer, not in the rules. Exclusivity = unordered code pairs; valid-stackings enumerates every legal subset of applicable promos; best-stacking deterministically picks max total discount (stable on ties); stacking-by-totalo answers "which legal stacking yields total D?" backward. Member vs guest falls out of applicable-promos. Completes Phase 2. Total 99/99 across 6 suites. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-07 00:21:48 +00:00
giles	79fa28e55d	commerce: promo rules (percent/fixed/bundle/member) as relations (17 tests) ... 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 ... 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) ... 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) ... 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) ... 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