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feat(enakgame): game sessions, rewards, vouchers, budgets and events

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EnakGame phases 1-8 of docs/tasks-enakgame.md (EG-101 to EG-803), built on the
existing EnakPoint/EnakCoin wallet (docs/rfc-enakgame.md).

Foundation (phase 1)
- Migrations 000103-000106: games extended with organization, slug, status,
  entry cost and result rules, old games archived (not deleted); budgets,
  versioned reward configs, sessions and session rewards; the ledger types
  GAME_SPEND_REFUND, GAME_REWARD and REWARD_REDEEM_REFUND; audit_logs.
- AuditLogger writes in the caller's transaction only.
- enakgame.limit.user_daily and global_daily organization settings.

Games and sessions (phases 2-4)
- Admin /marketing/enakgame: games, reward config versions (immutable but for
  status, one ACTIVE per game), budgets with non-overlapping global periods and
  a daily job opening the next month.
- Customer /customer/enakgame: start (Idempotency-Key, entry cost and config
  frozen on the session), complete (result validation, reward engine, max_reward
  cap, daily limits via game_reward_counters, one GAME_REWARD per budget),
  automatic refunds for system errors and deactivated games, and a session job.
- Reward engine: FIXED, SCORE_BASED, OUTCOME_BASED, PROBABILITY (crypto/rand),
  rounded down.

Vouchers and budgets (phases 5-6)
- Migration 000108 and 000107: vouchers, codes, redemptions, cost attribution;
  Economy Guard counters.
- STATIC and CODE_POOL redemption in one transaction with the REDEEM PIN action;
  realized cost traced through the lots to the budget that paid the reward.
- Budget metrics: realized cost, forecast, exposure and status. Migrations
  000109-000110 add the wallet_lots indexes they need, built CONCURRENTLY.

Events (phase 7)
- Migration 000111: game events, each with its own EVENT budget. Event extras
  stack per PRD §16 defaults, with event and per-customer limits.

External vouchers (phase 8)
- VoucherProvider contract, two-step PENDING redemption and a recovery job,
  tested with a fake provider. No provider adapter is registered yet, so
  EXTERNAL vouchers stay out of the catalog.

Not yet decided before release: reward rounding, event stacking, budget
exhaustion policy and thresholds (RFC §19.2). Migrations 000103-000111 have
not been run on any shared database.

Also fixes a leftover PAYMENT filter in a wallet test and a data race in a
test PIN fake.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
efrilm
2026-10-07 20:53:14 +07:00
co-authored by Claude Opus 5.5
parent 2c9753fae7
commit 798a36bd6c
92 changed files with 12392 additions and 23 deletions
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internal/processor/game_play_processor_db_test.go
+2 -1
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@@ -18,7 +18,8 @@ import (
func TestPlayGame_AgainstPostgres(t *testing.T) {
db, _, player, _ := walletMoveDB(t)
gameID, prizeID := uuid.New(), uuid.New()
require.NoError(t, db.Exec(`INSERT INTO games (id, name, type, metadata) VALUES (?, 'Raffle', 'RAFFLE', '{"coin_cost": 2}')`, gameID).Error)
// An old game: archived for EnakGame (000103) but still active for the old spin.
require.NoError(t, db.Exec(`INSERT INTO games (id, name, type, metadata, status, entry_cost) VALUES (?, 'Raffle', 'RAFFLE', '{"coin_cost": 2}', 'ARCHIVED', 2)`, gameID).Error)
require.NoError(t, db.Exec(`INSERT INTO game_prizes (id, game_id, name, weight, stock) VALUES (?, ?, 'Tumbler', 1, 1)`, prizeID, gameID).Error)
t.Cleanup(func() {
db.Exec(`DELETE FROM wallet_lot_allocations WHERE transaction_id IN (SELECT id FROM wallet_transactions WHERE customer_id = ?)`, player)