## What
The same currency-symbol money formatter — a `match` on
`strtolower($currency)` returning a symbol, concatenated with
`number_format($cents / 100, 2)` — was copy-pasted across **five**
files:
- `app/Console/Commands/SendExperimentFunnelReportCommand.php`
(`money(int $cents, …)`)
- `app/Listeners/PostStripeEventToDiscord.php` (`money(int $amount, …)`)
- `app/Console/Commands/SyncStripePricesCommand.php` (`formatAmount(int
$amountInCents, …)`)
- `app/Console/Commands/StripeSubscriptionStatsCommand.php`
(`format(float $amount, …)`)
- `app/Console/Commands/SendDailyStatsReportCommand.php` (`money(float
$amount, …)`)
This extracts it into a single `App\Support\Money::format(int $cents,
string $currency): string` helper and removes the duplicated logic from
every site.
## Zero behavior change
The five copies were **not** verbatim — they diverged on three axes:
unit (cents vs. major units), symbol coverage, and default casing. The
shared helper is the **union** of the existing maps
(`eur`/`gbp`/`usd`/`jpy`/`brl`, otherwise uppercased code + trailing
space), and reproduces every call site's output for the currencies each
actually receives:
- **Cents-based sites** (experiment funnel, Discord listener, price
sync) call the helper directly.
- The experiment funnel only ever passes the Cashier currency
(uppercased `EUR` from the collector), so its narrower map / raw-case
default was a dead branch.
- The price sync command only formats `config('cashier.currency')`
(`eur`), so it never hit `usd`/`brl` — adding those symbols is a no-op
here.
- **Major-unit sites** (`StripeSubscriptionStatsCommand`,
`SendDailyStatsReportCommand`) hold MRR as floats, so their private
method now converts to cents (`(int) round($amount * 100)`) and
delegates; call sites are untouched. `number_format` of the
round-tripped value is identical to the original.
## Tests
- New `tests/Unit/Support/MoneyTest.php` covering `eur`, `gbp`, `usd`,
`jpy`, `brl`, an unknown currency (`chf` → `CHF 3.99`),
case-insensitivity, thousands separator, and zero.
- The existing command feature tests (which assert exact rendered
strings like `€10.00`, `€19.99`, `€9.99 / month → €3.99 / month`) still
pass unchanged.
`pint`, `phpstan`, and the affected feature + unit tests are green
locally (42 passing).
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