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feat(loyalty): remind customers before balances expire

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Adds what the customer sees of expiry (docs/prd-point-coin.md F6, F12,
PC-504).

GET /customer/wallet/expiring lists everything that will expire, per
currency and day, soonest first. GET /customer/wallet already had the
nearest expiry per currency.

The expiry job now also sends reminders, with the settings of note N4 as
decided: once, reminder_days before (7 by default, 0 for none), per
currency. A customer gets one FCM push per currency and expiry day,
however many lots make it up: "150 EnakPoint akan kedaluwarsa pada 31 Okt
2026. Pakai sebelum hangus.", with type WALLET_EXPIRING, the currency,
amount and expiry_date in its data. Reminders cover whatever falls within
the window, so a run that was missed catches up rather than skipping a day.

Migration 000097 adds wallet_expiry_reminders, one row per customer,
currency and expiry day. The row is written before the push is sent, so
several instances of the job or a restart never remind twice; a push that
then fails is logged and not retried. Lots that expire later on the same
day as an earlier reminder are not reminded of again.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
efrilm
2026-09-30 14:35:12 +07:00
co-authored by Claude Opus 5.5
parent d293786cde
commit 550122f29c
17 changed files with 374 additions and 11 deletions
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internal/processor/wallet_query_processor_test.go
+21
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@@ -243,3 +243,24 @@ func TestWalletQueryProcessor_RejectsBadQueries(t *testing.T) {
func (f *walletQueryRepoFake) OrganizationOutstanding(context.Context, uuid.UUID) (int64, int64, error) {
return 0, 0, nil
}
func (f *walletQueryRepoFake) ExpiringByDay(context.Context, uuid.UUID, time.Time) ([]repository.WalletExpiringAmount, error) {
return f.expiring, nil
}
func TestWalletQueryProcessor_ExpiringGroupsByCurrencyAndDay(t *testing.T) {
repo := &walletQueryRepoFake{org: uuid.New(), expiring: []repository.WalletExpiringAmount{
{Currency: "POINT", Date: "2026-10-31", Amount: 150},
{Currency: "COIN", Date: "2026-10-31", Amount: 4},
{Currency: "POINT", Date: "2026-12-31", Amount: 200},
}}
got, err := newWalletQueryTest(repo, nil).Expiring(context.Background(), uuid.New())
require.NoError(t, err)
assert.Equal(t, []models.CustomerWalletExpiring{{Amount: 150, Date: "2026-10-31"}, {Amount: 200, Date: "2026-12-31"}}, got.Point)
assert.Equal(t, []models.CustomerWalletExpiring{{Amount: 4, Date: "2026-10-31"}}, got.Coin)
empty, err := newWalletQueryTest(&walletQueryRepoFake{org: uuid.New()}, nil).Expiring(context.Background(), uuid.New())
require.NoError(t, err)
assert.NotNil(t, empty.Point, "an empty list, not null")
assert.NotNil(t, empty.Coin)
}