The node is an interface, so the code where money is actually at risk is
tested against a fake that can be made to fail, stall, or lie. Plugging
in Alby Hub is configuration, not new code.
Crediting a deposit is idempotent by payment hash: a node reporting the
same settlement twice must not mint money. Withdrawals debit before they
pay, because a payment that succeeds while the ledger write fails loses
money permanently, whereas the reverse is recoverable. Withdrawals above
a threshold wait for a human, which bounds what a stolen session token
can remove.
17 tests including concurrent settlement, concurrent double-spend,
concurrent processors, failed payment refunds, fee caps, and solvency.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Fixes the money bug flagged earlier. When an instance died mid-round its
players had already been debited, so their stakes sat with the house:
balanced books, quietly robbed players. Every instance now sweeps for
unresolved rounds and refunds them.
Such a round is marked void, not settled. The schema caught this: the
reveal_is_complete constraint requires a settled round to publish its
seed, and an abandoned round has no outcome to reveal. Void is a distinct
state with its own column and a check that the two are exclusive.
Claiming happens before money moves, so concurrent reconcilers on
different instances refund exactly once.
Adds TestFullPlayerJourney: sign-in with no account, fund, scratch, bet
with an auto target, settle, verify the round independently, check the
ledger history is continuous, transfer to a friend, and confirm the books
still sum to zero. It asserts against the ledger rather than the API's
own summary.
Adds cmd/loadtest. One instance on 4 cores held 25,000 concurrent
websocket connections with zero failures at 586MB RSS, about 26KB per
connection, with the load generator competing for the same CPU.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Round length is now bounded: the multiplier follows a hyperbolic curve
diverging at 60s, replacing an exponential one where a 275x crash point
produced a two-and-a-half minute round.
Fixes seed reveal, which silently failed every round because pgx cannot
encode a fixed-size byte array as bytea.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
The Lightning bridge is modelled as the boundary with the outside
world and is the one account permitted to go negative; its negative
balance is exactly what is owed to players inside the system. All
other accounts are floored at zero by both the application and a
database trigger.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
