james
a7bc476251
Shop-owned activities on one SKU, concrete groups with an open/successful/expired/cancelled lifecycle, and one paid membership row per paid order. Checkout accepts a single-SKU quantity-1 intent, snapshots the group price and identity on the pending order, and opens or references a group; a paid seat is claimed only at payment, which locks the group and fills it exactly at capacity. Pending-payment cancellation restores SKU stock only and never rolls back paid seats; an unpaid opener cancelling closes a still-empty group. Coupons are refused on a group shop order, and the flash-sale exclusion is now enforced in both directions because the activity table exists, which activates the guard add-flash-sales shipped dormant. The activity column names follow the contract recorded in this change's design. Surfaces (shop-admin, mall) and seeding follow.
23 lines
2.3 KiB
Markdown
23 lines
2.3 KiB
Markdown
## 1. Group-buying state model and contract
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- [x] 1.1 Add additive migrations for shop activities, concrete groups, paid memberships, expiry/state constraints, and order group-price snapshots.
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- [x] 1.2 Implement the Rust group-buying module with shop-scoped activity management, active discovery, deterministic expiry, and open-group queries.
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- [ ] 1.3 Add shared group-buying types, checkout intent (single SKU, quantity 1), API-client methods, locales, and fixed-data adapter parity.
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## 2. Checkout and payment integration
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- [x] 2.1 Validate a single-SKU quantity-1 group-buying intent during checkout, create or reference an open group, and snapshot group price and identity on the pending order. Reject overlapping flash eligibility and coupon selection on that shop order; restate coupon and flash handling for other shop orders in the same checkout.
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- [x] 2.2 Extend payment to atomically expire due groups, claim a paid seat, enforce capacity, and transition a filled group to successful. Pending-payment cancellation restores SKU stock only and does not roll back paid membership. Cancelling the opening unpaid order while paid count is zero marks the group cancelled.
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- [x] 2.3 Add integration tests for activity/shop validation, open versus join flow, quantity-1 enforcement, concurrent final-seat payment, full/expired/cancelled-group conflicts, coupon rejection on group shop orders, overlapping flash rejection, cancel-without-membership-rollback, unpaid-opener empty-group cancel, and visibility of expired paid groups.
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## 3. Merchant and customer surfaces
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- [ ] 3.1 Add shop-admin management for activity SKU, localized presentation, price, required count, active window, group lifetime, and a group-buying nav entry.
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- [ ] 3.2 Replace the mall group-buying fixture page with live activities, open groups, paid-member counts, expiry, and open/join checkout intent; show snapshotted group prices on payment and order-detail views.
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- [ ] 3.3 Remove affected direct group-buying fixture imports while retaining fixed-data adapter support.
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## 4. Verification and specification
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- [ ] 4.1 Seed an active deterministic group activity and browser-smoke discovery, opening, joining, and successful payment.
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- [ ] 4.2 Run cargo test for vmall-api, builds for mall and shop-admin, and strict validation for this OpenSpec change.
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