CluPilotCloud/tests/Feature/Billing/StripePriceAdoptionTest.php

<?php

use App\Models\PlanPrice;
use App\Models\StripeAddonPrice;
use App\Models\StripePlanPrice;
use App\Models\Subscription;
use App\Models\SubscriptionAddon;
use App\Services\Billing\AddonPrices;
use App\Services\Billing\AdoptStripePrice;
use App\Services\Billing\PlanPrices;
use App\Services\Billing\TaxTreatment;
use App\Services\Stripe\FakeStripeClient;
use App\Services\Stripe\IdempotencyKey;
use App\Services\Stripe\StripeClient;
use Illuminate\Contracts\Console\Kernel;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\UniqueConstraintViolationException;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\Facades\Schema;

/**
 * A run that dies between Stripe's create and our insert leaves an orphan — and
 * the next run must recognise it instead of minting a second live Price for the
 * same money.
 *
 * On 2026-07-29 23:11 a sweep created price_1TygdEC7u8NpJ8pOt3nsoyYw
 * (priority_support, 3480 EUR, monthly) and died before the row was written.
 * The idempotency key covered the next twenty-four hours and then stopped
 * covering anything; after that, the guard against a duplicate was nothing at
 * all. This is that guard.
 *
 * What may be adopted is narrow on purpose: same money, same interval, same
 * currency, proof in the metadata that the Price is ours, and no row claiming
 * it already. Adopting somebody else's Price would be a worse failure than
 * minting a second one, and adopting a Price at a DIFFERENT amount would move
 * money — which nothing here is allowed to do.
 */
beforeEach(function () {
    $this->stripe = new FakeStripeClient;
    app()->instance(StripeClient::class, $this->stripe);
});

/** The module metadata as AddonPrices sends it today. */
function moduleMetadata(string $treatment = 'domestic'): array
{
    return ['addon' => 'priority_support', 'tax_treatment' => $treatment];
}

/** Ask the adoption step the question AddonPrices asks it. */
function adoptModulePrice(?array $metadata = null, ?callable $claimed = null): ?string
{
    return app(AdoptStripePrice::class)(
        productId: 'prod_support',
        amountCents: 3480,
        currency: 'EUR',
        interval: 'month',
        metadata: $metadata ?? moduleMetadata(),
        identifying: ['addon'],
        claimed: $claimed ?? fn (string $id) => false,
    );
}

it('adopts the orphan of 2026-07-29 instead of minting a second price', function () {
    // The state that morning: the Price exists at Stripe, carries the metadata
    // of the code that made it — WITHOUT tax_treatment, which 9da1358 added
    // afterwards — and no row of ours knows it.
    $this->stripe->plantPrice('price_1TygdEC7u8NpJ8pOt3nsoyYw', 'prod_support',
        3480, 'EUR', 'month', ['addon' => 'priority_support']);

    expect(adoptModulePrice())->toBe('price_1TygdEC7u8NpJ8pOt3nsoyYw');

    // Brought up to today's metadata rather than replaced: metadata is mutable
    // at Stripe, the amount is not, which is the whole reason the format is no
    // part of a Price's identity.
    expect($this->stripe->metadataUpdates)->toBe([[
        'price' => 'price_1TygdEC7u8NpJ8pOt3nsoyYw',
        'metadata' => moduleMetadata(),
    ]]);
});

it('leaves the metadata alone when it already says the right thing', function () {
    $this->stripe->plantPrice('price_ok', 'prod_support', 3480, 'EUR', 'month', moduleMetadata());

    expect(adoptModulePrice())->toBe('price_ok')
        ->and($this->stripe->metadataUpdates)->toBe([]);
});

it('leaves the metadata alone when Stripe merged it in a different order plus a key of its own', function () {
    // plantPrice() stores our own array in our own order, so the test above
    // cannot catch an order- or merge-sensitive comparison: Stripe returns
    // metadata as the result of a MERGE, never a replace, in whatever key
    // order it likes — and a write never removes a key it did not send.
    $this->stripe->plantPrice('price_ok', 'prod_support', 3480, 'EUR', 'month', [
        'tax_treatment' => 'domestic',
        'addon' => 'priority_support',
        'internal_note' => 'added by hand in the Stripe dashboard',
    ]);

    expect(adoptModulePrice())->toBe('price_ok')
        ->and($this->stripe->metadataUpdates)->toBe([]);
});

it('adopts nothing when the amount, currency or interval differ', function () {
    $this->stripe->plantPrice('price_cheaper', 'prod_support', 2900, 'EUR', 'month', moduleMetadata());
    $this->stripe->plantPrice('price_yearly', 'prod_support', 3480, 'EUR', 'year', moduleMetadata());
    $this->stripe->plantPrice('price_dollars', 'prod_support', 3480, 'USD', 'month', moduleMetadata());

    expect(adoptModulePrice())->toBeNull();
});

it('refuses a price nothing proves is ours, and says so', function () {
    Log::spy();

    // What a person clicking through Stripe's own dashboard leaves behind: the
    // right money on our product, and not one word about what it is for.
    $this->stripe->plantPrice('price_by_hand', 'prod_support', 3480, 'EUR', 'month', []);

    expect(adoptModulePrice())->toBeNull();

    Log::shouldHaveReceived('warning')->once();
});

it('passes silently over another of our own prices', function () {
    Log::spy();

    // At a VAT rate of nought both treatments are the same amount, so the
    // reverse-charge Price sits at the domestic one's money — and contradicts on
    // tax_treatment. That is not a mystery worth a warning; it is a Price of
    // ours that is not the one being asked for.
    $this->stripe->plantPrice('price_rc', 'prod_support', 3480, 'EUR', 'month',
        moduleMetadata('reverse_charge'));

    expect(adoptModulePrice())->toBeNull();

    Log::shouldNotHaveReceived('warning');
});

it('never hands out a price a row already claims', function () {
    $this->stripe->plantPrice('price_taken', 'prod_support', 3480, 'EUR', 'month', moduleMetadata());

    expect(adoptModulePrice(claimed: fn (string $id) => $id === 'price_taken'))->toBeNull();
});

it('adopts the oldest of several orphans and stops selling the rest', function () {
    Log::spy();

    $this->stripe->plantPrice('price_second', 'prod_support', 3480, 'EUR', 'month',
        ['addon' => 'priority_support'], created: 200);
    $this->stripe->plantPrice('price_first', 'prod_support', 3480, 'EUR', 'month',
        ['addon' => 'priority_support'], created: 100);
    $this->stripe->plantPrice('price_third', 'prod_support', 3480, 'EUR', 'month',
        ['addon' => 'priority_support'], created: 300);

    // The oldest, because it is the one a lost row is likeliest to have been
    // billing on.
    expect(adoptModulePrice())->toBe('price_first')
        ->and($this->stripe->archived)->toBe(['price_second', 'price_third']);

    Log::shouldHaveReceived('warning');
});

it('takes the orphan over instead of minting a second module price', function () {
    // The product exists because a previous run got that far; the Price exists
    // because the run that made it died before the insert.
    $this->stripe->plantPrice('price_1TygdEC7u8NpJ8pOt3nsoyYw', 'prod_support',
        3480, 'EUR', 'month', ['addon' => 'priority_support']);
    StripeAddonPrice::query()->create([
        'addon_key' => 'priority_support', 'reverse_charge' => false,
        'amount_cents' => 41760, 'net_cents' => 34800, 'currency' => 'EUR',
        'interval' => 'year', 'stripe_product_id' => 'prod_support',
        'stripe_price_id' => 'price_yearly_already_known',
    ]);

    $before = count($this->stripe->prices);

    $id = app(AddonPrices::class)->ensure(
        'priority_support', 2900, 'EUR', Subscription::TERM_MONTHLY, TaxTreatment::domestic(),
    );

    expect($id)->toBe('price_1TygdEC7u8NpJ8pOt3nsoyYw')
        // Nothing new at Stripe: the orphan was taken over, not replaced.
        ->and(count($this->stripe->prices))->toBe($before)
        ->and(StripeAddonPrice::query()
            ->where('addon_key', 'priority_support')
            ->where('interval', 'month')
            ->where('reverse_charge', false)
            ->value('stripe_price_id'))->toBe('price_1TygdEC7u8NpJ8pOt3nsoyYw');
});

it('does not block a booking because the metadata format moved', function () {
    // 2026-07-29, exactly: orphan with the old metadata, code with the new. This
    // is the call that answered HTTP 400 for twenty-four hours.
    $this->stripe->plantPrice('price_1TygdEC7u8NpJ8pOt3nsoyYw', 'prod_support',
        3480, 'EUR', 'month', ['addon' => 'priority_support']);
    StripeAddonPrice::query()->create([
        'addon_key' => 'priority_support', 'reverse_charge' => false,
        'amount_cents' => 41760, 'net_cents' => 34800, 'currency' => 'EUR',
        'interval' => 'year', 'stripe_product_id' => 'prod_support',
        'stripe_price_id' => 'price_yearly_already_known',
    ]);

    // Stripe's own side of that morning, and load-bearing for the same reason as
    // the cleared ledger in 'takes over an orphaned package price' below — only
    // the other way round. Without an entry here createPrice() would simply mint,
    // and the test could not tell "adoption prevented the 400" from "no 400 was
    // possible". So the ledger is seeded with what the pre-9da1358 call left
    // behind: the id it was answered with, and a fingerprint over the metadata
    // that call sent — `addon` alone, before tax_treatment existed. The entry sits
    // under the header today's code sends, because that is the only way a ledger
    // keyed by header can put this createPrice() in front of a poisoned key: the
    // fingerprint is folded into the header now, so a changed call also changes
    // the header, which is the branch's OTHER half of the same fix. Seeded
    // directly, therefore, and honestly so — what it stands in for is Stripe
    // holding this call's key against different parameters.
    $this->stripe->keys[IdempotencyKey::forPrice(
        'clupilot-addon-price-priority_support-month-3480-EUR',
        'prod_support', 3480, 'EUR', 'month', moduleMetadata(),
    )] = [
        'id' => 'price_1TygdEC7u8NpJ8pOt3nsoyYw',
        'fingerprint' => IdempotencyKey::fingerprint(IdempotencyKey::priceParameters(
            'prod_support', 3480, 'EUR', 'month', ['addon' => 'priority_support'],
        )),
    ];

    $id = app(AddonPrices::class)->ensure(
        'priority_support', 2900, 'EUR', Subscription::TERM_MONTHLY, TaxTreatment::domestic(),
    );

    // Adoption is what keeps createPrice() from ever being reached. Take the
    // adopt() call out of AddonPrices::ensure() and this test does not merely
    // return the wrong id — it dies inside the fake with Stripe's own sentence,
    // 'Keys for idempotent requests can only be used with the same parameters
    // they were first used with.' That is the 2026-07-29 blockade, reproduced.
    expect($id)->toBe('price_1TygdEC7u8NpJ8pOt3nsoyYw')
        ->and($this->stripe->metadataUpdates)->toHaveCount(1);
});

it('leaves a frozen booking on the price it was sold at', function () {
    // Seeds the product id AddonPrices::product() will find and reuse — same
    // reason as the first two tests in this file. Without it, the sync below
    // mints its own Stripe Product with a generated id, and the orphan planted
    // further down (deliberately at the literal 'prod_support' Stripe uses
    // throughout this file) would sit on a product nothing ever asks about,
    // making it inert rather than the competing figure the test needs.
    StripeAddonPrice::query()->create([
        'addon_key' => 'priority_support', 'reverse_charge' => false,
        'amount_cents' => 41760, 'net_cents' => 34800, 'currency' => 'EUR',
        'interval' => 'year', 'stripe_product_id' => 'prod_support',
        'stripe_price_id' => 'price_yearly_already_known',
    ]);

    app(Kernel::class)->call('stripe:sync-catalogue');

    $sold = app(AddonPrices::class)->liveFor(
        'priority_support', 2900, 'EUR', Subscription::TERM_MONTHLY, TaxTreatment::domestic(),
    );

    $subscription = Subscription::factory()->plan('team')->create();
    $booking = SubscriptionAddon::query()->create([
        'subscription_id' => $subscription->id,
        'addon_key' => 'priority_support',
        // Net, per month, per unit — frozen at booking. `currency` and
        // `booked_at` are both NOT NULL (2026_07_26_060000), and `uuid` fills
        // itself through the model's uniqueIds().
        'price_cents' => 2900,
        'currency' => 'EUR',
        'quantity' => 1,
        'booked_at' => now(),
        'stripe_price_id' => $sold,
    ]);

    // The catalogue moves, and somebody has already left an orphan at the new
    // figure. Neither may reach a booking that is already frozen.
    config()->set('provisioning.addons.priority_support.price_cents', 3900);
    $this->stripe->plantPrice('price_orphan_new_figure', 'prod_support',
        4680, 'EUR', 'month', ['addon' => 'priority_support']);

    app(Kernel::class)->call('stripe:sync-catalogue');

    // The `archived` assertion right below — the second of this chain — is
    // this test's only adoption tooth. AdoptStripePrice archives a Price at
    // Stripe when it treats one as a duplicate of another it adopted, and
    // that is the one way it could reach past the figure it was asked for
    // (4680, the new one) and take the frozen booking's own Price (3480) down
    // with it as a false "duplicate".
    //
    // The three assertions after it read the SWEEP's own row-writing code,
    // not adoption — AdoptStripePrice performs no database writes at all, so
    // nothing it does, singly or in combination, can fail them. They earn
    // their place anyway, because they are exactly what a defect in the
    // sweep's OTHER two writers would fail: archiveSuperseded() losing its
    // `->where('net_cents', $netCents)` scoping (its own docblock is about
    // precisely why that scoping has to hold) would sweep the 2900-net row up
    // alongside the 3900-net one it is meant to supersede, and remember()
    // rewritten as an updateOrCreate() keyed without `amount_cents` — the
    // plausible-looking fix for the UniqueConstraintViolationException catch
    // a few lines below it — would silently overwrite the very row these
    // assertions read.
    //
    // Neither of adoption's two guards is isolated by this test — the amount
    // match and the `claimed` callback cover for each other in this scenario,
    // which is why sabotaging either alone during this fix round left the
    // booking untouched. Each is isolated on its own elsewhere in this file:
    // it('adopts nothing when the amount, currency or interval differ') and
    // it('never hands out a price a row already claims').
    expect($booking->refresh()->stripe_price_id)->toBe($sold)
        ->and($this->stripe->archived)->not->toContain($sold)
        // The OLD figure's Price is still what a checkout for it would use —
        // adoption of the orphan at the NEW figure must not have reached
        // backwards and pulled the frozen figure's Price out of circulation.
        ->and(app(AddonPrices::class)->liveFor(
            'priority_support', 2900, 'EUR', Subscription::TERM_MONTHLY, TaxTreatment::domestic(),
        ))->toBe($sold)
        // The row itself, not only whether it is archived — `archived_at`
        // reads null for a row that is still live AND for one that is gone
        // or rewritten onto a different net_cents, so `exists()` has to stand
        // beside it or the row's disappearance would pass silently.
        ->and(StripeAddonPrice::query()
            ->where('addon_key', 'priority_support')
            ->where('reverse_charge', false)
            ->where('net_cents', 2900)
            ->where('interval', 'month')
            ->exists())->toBeTrue()
        ->and(StripeAddonPrice::query()
            ->where('addon_key', 'priority_support')
            ->where('reverse_charge', false)
            ->where('net_cents', 2900)
            ->where('interval', 'month')
            ->value('archived_at'))->toBeNull()
        // And asking for the OLD figure again — the same call a renewal on
        // this very booking would make — must still be handed $sold, not the
        // orphan sitting at the new figure's amount.
        ->and(app(AddonPrices::class)->ensure(
            'priority_support', 2900, 'EUR', Subscription::TERM_MONTHLY, TaxTreatment::domestic(),
        ))->toBe($sold);
});

it('takes over an orphaned package price', function () {
    // A catalogue mirrored once, so families have Products and rows have Prices.
    app(Kernel::class)->call('stripe:sync-catalogue');

    $row = PlanPrice::query()->firstOrFail();
    $charged = PlanPrices::chargedCents($row, TaxTreatment::domestic());

    // The register loses its row and Stripe keeps the Price: a run that died
    // between the two, seen from the next run's point of view.
    $orphan = (string) StripePlanPrice::query()
        ->where('plan_price_id', $row->id)
        ->where('reverse_charge', false)
        ->value('stripe_price_id');
    StripePlanPrice::query()->where('stripe_price_id', $orphan)->delete();

    // Load-bearing, not incidental cleanup: Stripe forgets an idempotency key
    // after twenty-four hours, and that expiry is the only condition under
    // which the 2026-07-29 duplicate was ever minted. With the sync's own key
    // still in the fake's ledger, createPrice() would just replay $orphan's
    // id on its own — proving nothing about adoption. Clearing it is what
    // makes createPrice() able to mint a genuine second Price, which is the
    // only way this test can fail.
    $this->stripe->keys = [];

    $before = count($this->stripe->prices);

    $id = app(PlanPrices::class)->ensure($row->refresh(), TaxTreatment::domestic());

    expect($id)->toBe($orphan)
        ->and(count($this->stripe->prices))->toBe($before)
        ->and(StripePlanPrice::query()
            ->where('plan_price_id', $row->id)
            ->where('reverse_charge', false)
            ->where('charged_cents', $charged)
            ->value('stripe_price_id'))->toBe($orphan)
        // The pointer for the ordinary domestic sale is written as before.
        ->and((string) $row->refresh()->stripe_price_id)->toBe($orphan);
});

it('does not take a package price belonging to another catalogue row', function () {
    app(Kernel::class)->call('stripe:sync-catalogue');

    $row = PlanPrice::query()->firstOrFail();
    $product = (string) $row->version->family->stripe_product_id;
    $charged = PlanPrices::chargedCents($row, TaxTreatment::domestic());
    $interval = $row->term === Subscription::TERM_YEARLY ? 'year' : 'month';

    // This row's OWN domestic Price from the sync above becomes a legitimate
    // orphan the moment its register row is gone — exactly like the test
    // above — and adopt() would be right to reclaim it. Archived here so the
    // only Price left at this exact figure is the wrong-owner one below:
    // otherwise adoption would correctly adopt the row's own orphan before
    // ever weighing 'price_other_row', and the rejection this test exists to
    // prove would never be reached.
    $this->stripe->archivePrice((string) StripePlanPrice::query()
        ->where('plan_price_id', $row->id)
        ->where('reverse_charge', false)
        ->value('stripe_price_id'));

    StripePlanPrice::query()->where('plan_price_id', $row->id)->delete();

    // Same product, same money, same interval — and plan_price_id says it is a
    // DIFFERENT row's Price. One Product carries every version and term of a
    // family, so this is the ordinary case, not an exotic one.
    $this->stripe->plantPrice('price_other_row', $product, $charged, (string) $row->currency,
        $interval, ['plan_price_id' => (string) ($row->id + 1000), 'tax_treatment' => 'domestic']);

    // Same reason as the test above: with the sync's own idempotency key
    // still in force, createPrice() would replay THIS row's own previous
    // Price — which would also not be 'price_other_row', whether or not
    // adoption ever looked at the wrong-owner Price at all. Clearing the
    // ledger forces a real mint when nothing adoptable is found, which is
    // what gives the assertions below something to catch.
    $this->stripe->keys = [];

    $before = count($this->stripe->prices);

    $id = app(PlanPrices::class)->ensure($row->refresh(), TaxTreatment::domestic());

    expect($id)->not->toBe('price_other_row')
        // A fresh Price was minted rather than 'price_other_row' being handed
        // out. Proves AdoptStripePrice's contradicts()/confirms() pair
        // correctly refused the wrong-owner Price WHEN adoption runs — the
        // two guard each other here exactly as they do on the module side, so
        // either alone still catches this; only disabling both together lets
        // 'price_other_row' through. It does NOT prove PlanPrices wires
        // adopt() into ensure() at all: skipping that wiring entirely mints
        // fresh here too, indistinguishable from a correct refusal. The test
        // above ("takes over an orphaned package price") is what proves the
        // wiring is present.
        ->and(count($this->stripe->prices))->toBe($before + 1)
        // The Price belonging to the other row must survive untouched.
        // AdoptStripePrice archives every orphan but the one it adopts, so a
        // defect that let it treat 'price_other_row' as a duplicate of
        // whatever it did adopt would take this down as collateral damage —
        // exactly the failure a wrong plan_price_id must never cause.
        ->and($this->stripe->archived)->not->toContain('price_other_row');
});

it('does not adopt a package price that only proves the family, not this row', function () {
    // The whole reason the plan side needs `identifying: ['plan_price_id']`
    // rather than the module side's simpler key: one Product carries a Price
    // for every version, term AND treatment of a family, so a Price that
    // proves only the FAMILY could be any of them. If `identifying` were ever
    // loosened to ['plan_family'], a Price like the one planted below would
    // wrongly confirm — nothing else here would catch it.
    app(Kernel::class)->call('stripe:sync-catalogue');

    $row = PlanPrice::query()->firstOrFail();
    $product = (string) $row->version->family->stripe_product_id;
    $charged = PlanPrices::chargedCents($row, TaxTreatment::domestic());
    $interval = $row->term === Subscription::TERM_YEARLY ? 'year' : 'month';

    // This row's OWN domestic Price is a legitimate orphan the moment its
    // register row is gone — same reason as the two tests above — and would
    // otherwise be correctly re-adopted before the planted Price below is
    // ever weighed, masking the very rejection this test means to prove.
    $this->stripe->archivePrice((string) StripePlanPrice::query()
        ->where('plan_price_id', $row->id)
        ->where('reverse_charge', false)
        ->value('stripe_price_id'));

    StripePlanPrice::query()->where('plan_price_id', $row->id)->delete();

    // Right product, right money, right currency, right interval, and the
    // right FAMILY — the one thing missing is plan_price_id, which is the
    // only key that says which of the family's many rows a Price belongs to.
    $this->stripe->plantPrice('price_family_only', $product, $charged, (string) $row->currency,
        $interval, ['plan_family' => $row->version->family->key]);

    // Same reason as the two tests above: with the sync's own idempotency
    // key still in force, createPrice() would replay this row's own previous
    // Price rather than genuinely minting, leaving nothing for the
    // assertions below to catch.
    $this->stripe->keys = [];

    $before = count($this->stripe->prices);

    $id = app(PlanPrices::class)->ensure($row->refresh(), TaxTreatment::domestic());

    expect($id)->not->toBe('price_family_only')
        // A fresh Price was minted rather than the family-only Price being
        // handed out — this is the assertion `identifying: ['plan_price_id']`
        // exists to keep true; swap it for ['plan_family'] and this fails.
        ->and(count($this->stripe->prices))->toBe($before + 1)
        ->and($this->stripe->archived)->not->toContain('price_family_only');
});

it('lets no two module rows claim one stripe price', function () {
    $shared = [
        'addon_key' => 'priority_support', 'net_cents' => 2900, 'currency' => 'EUR',
        'stripe_product_id' => 'prod_support', 'stripe_price_id' => 'price_shared',
    ];

    StripeAddonPrice::query()->create([...$shared,
        'reverse_charge' => false, 'amount_cents' => 3480, 'interval' => 'month']);

    // Two rows on one Price is what Block D warned about: archiving the one
    // would withdraw the Price the other is still selling.
    expect(fn () => StripeAddonPrice::query()->create([...$shared,
        'reverse_charge' => true, 'amount_cents' => 2900, 'interval' => 'month']))
        ->toThrow(UniqueConstraintViolationException::class);
});

it('keeps only the lowest-id row in every group of duplicates, and leaves the rest of the table alone', function () {
    // This is the one branch of 2026_07_31_210000_one_row_per_stripe_price that
    // deletes rows from a live table, and it cannot be reached through the
    // ordinary migrated schema: RefreshDatabase already ran this migration, so
    // its OWN unique index would refuse the very duplicate this test needs to
    // insert. Dropping the index first puts the table back into the shape the
    // migration was written to find — the shape a real, never-yet-migrated
    // production table was in — so up() can be run again and actually take its
    // delete branch instead of finding nothing to do.
    Schema::table('stripe_addon_prices', fn (Blueprint $table) => $table->dropUnique('stripe_addon_prices_price_unique'));

    // Group one: two rows sharing a Price, differing in `reverse_charge` so the
    // pre-existing COMPOSITE unique index (addon_key, reverse_charge,
    // amount_cents, currency, interval) does not itself refuse the insert —
    // the VAT-rate-zero case Block D warned about, where only the shared
    // stripe_price_id gives the duplicate away.
    $kept = DB::table('stripe_addon_prices')->insertGetId([
        'addon_key' => 'priority_support', 'reverse_charge' => false,
        'amount_cents' => 2900, 'net_cents' => 2900, 'currency' => 'EUR', 'interval' => 'month',
        'stripe_product_id' => 'prod_support', 'stripe_price_id' => 'price_shared',
        'created_at' => now(), 'updated_at' => now(),
    ]);

    $duplicate = DB::table('stripe_addon_prices')->insertGetId([
        'addon_key' => 'priority_support', 'reverse_charge' => true,
        'amount_cents' => 2900, 'net_cents' => 2900, 'currency' => 'EUR', 'interval' => 'month',
        'stripe_product_id' => 'prod_support', 'stripe_price_id' => 'price_shared',
        'created_at' => now(), 'updated_at' => now(),
    ]);

    // Group two: THREE rows sharing a second, different Price — its own tuple
    // dimension varied per row (interval, then currency) so the composite index
    // never fires here either. One group of two proves the loop runs; this one
    // proves it runs more than once AND that a single iteration can delete more
    // than one row.
    $kept2 = DB::table('stripe_addon_prices')->insertGetId([
        'addon_key' => 'priority_support', 'reverse_charge' => false,
        'amount_cents' => 3900, 'net_cents' => 3900, 'currency' => 'EUR', 'interval' => 'month',
        'stripe_product_id' => 'prod_support', 'stripe_price_id' => 'price_shared_two',
        'created_at' => now(), 'updated_at' => now(),
    ]);

    $duplicate2a = DB::table('stripe_addon_prices')->insertGetId([
        'addon_key' => 'priority_support', 'reverse_charge' => false,
        'amount_cents' => 3900, 'net_cents' => 3900, 'currency' => 'EUR', 'interval' => 'year',
        'stripe_product_id' => 'prod_support', 'stripe_price_id' => 'price_shared_two',
        'created_at' => now(), 'updated_at' => now(),
    ]);

    $duplicate2b = DB::table('stripe_addon_prices')->insertGetId([
        'addon_key' => 'priority_support', 'reverse_charge' => false,
        'amount_cents' => 3900, 'net_cents' => 3900, 'currency' => 'USD', 'interval' => 'month',
        'stripe_product_id' => 'prod_support', 'stripe_price_id' => 'price_shared_two',
        'created_at' => now(), 'updated_at' => now(),
    ]);

    // On its own Price entirely — not part of any duplicate group — and must
    // survive completely untouched.
    $unrelated = DB::table('stripe_addon_prices')->insertGetId([
        'addon_key' => 'extra_storage', 'reverse_charge' => false,
        'amount_cents' => 1000, 'net_cents' => 1000, 'currency' => 'EUR', 'interval' => 'month',
        'stripe_product_id' => 'prod_storage', 'stripe_price_id' => 'price_untouched',
        'created_at' => now(), 'updated_at' => now(),
    ]);

    // require, not require_once: the file `return`s a fresh anonymous-class
    // instance every time it is evaluated, which is what lets this run the
    // migration's up() a second time in this same process.
    (require database_path('migrations/2026_07_31_210000_one_row_per_stripe_price.php'))->up();

    $keptRow = DB::table('stripe_addon_prices')->where('id', $kept)->first();
    $kept2Row = DB::table('stripe_addon_prices')->where('id', $kept2)->first();
    $unrelatedRow = DB::table('stripe_addon_prices')->where('id', $unrelated)->first();

    // The LOWER id survives in each group — the row that was written first,
    // which is the one anything already billing is likeliest to have been
    // reading. Were that ordering silently inverted, the surviving row could be
    // one nothing ever pointed at. Read back, not merely checked for existence:
    // a survivor that exists but was mangled in the process — the wrong
    // stripe_price_id, or an amount_cents that no longer matches what the
    // shared Price actually charges — would be exactly the "kept the right row
    // but damaged it" failure existence alone cannot catch.
    expect($keptRow)->not->toBeNull()
        ->and($keptRow->stripe_price_id)->toBe('price_shared')
        ->and((int) $keptRow->amount_cents)->toBe(2900)
        ->and($kept2Row)->not->toBeNull()
        ->and($kept2Row->stripe_price_id)->toBe('price_shared_two')
        ->and((int) $kept2Row->amount_cents)->toBe(3900)
        ->and($unrelatedRow)->not->toBeNull()
        ->and($unrelatedRow->stripe_price_id)->toBe('price_untouched')
        ->and((int) $unrelatedRow->amount_cents)->toBe(1000)
        // Every duplicate in both groups is gone — the higher id from group
        // one, and BOTH higher ids from group two's three-way tie.
        ->and(DB::table('stripe_addon_prices')->where('id', $duplicate)->exists())->toBeFalse()
        ->and(DB::table('stripe_addon_prices')->where('id', $duplicate2a)->exists())->toBeFalse()
        ->and(DB::table('stripe_addon_prices')->where('id', $duplicate2b)->exists())->toBeFalse()
        // Six rows went in, three survive: nothing beyond the two kept
        // duplicates and the untouched row is left standing.
        ->and(DB::table('stripe_addon_prices')->count())->toBe(3);

    // And the index is back in force: a further row on a third, otherwise
    // distinct tuple, but the SAME Price id, is refused by stripe_price_id
    // alone rather than being silently accepted.
    expect(fn () => DB::table('stripe_addon_prices')->insert([
        'addon_key' => 'priority_support', 'reverse_charge' => false,
        'amount_cents' => 4900, 'net_cents' => 4900, 'currency' => 'EUR', 'interval' => 'year',
        'stripe_product_id' => 'prod_support', 'stripe_price_id' => 'price_shared',
        'created_at' => now(), 'updated_at' => now(),
    ]))->toThrow(UniqueConstraintViolationException::class);
});

it('refuses a price whose recurrence is not one we could have minted', function () {
    // The money gate, asked of AdoptStripePrice itself rather than of the
    // client's filter. Until this moved, these four properties were rejected
    // inside HttpStripeClient — and FakeStripeClient could not express them, so
    // no test of this class could reach the promise its docblock makes.
    $this->stripe->plantPrice('price_quarterly', 'prod_support', 3480, 'EUR', 'month',
        moduleMetadata(), intervalCount: 3);

    expect(adoptModulePrice())->toBeNull();
});

it('refuses a price that meters usage instead of selling a licence', function () {
    $this->stripe->plantPrice('price_metered', 'prod_support', 3480, 'EUR', 'month',
        moduleMetadata(), usageType: 'metered');

    expect(adoptModulePrice())->toBeNull();
});

it('refuses a price that divides the quantity before charging', function () {
    // Modules are billed BY quantity — SyncStripeAddonItems sums a pack into one
    // item at quantity n — so a divide_by price would charge a customer holding
    // three for one.
    $this->stripe->plantPrice('price_divided', 'prod_support', 3480, 'EUR', 'month',
        moduleMetadata(), transformQuantity: true);

    expect(adoptModulePrice())->toBeNull();
});

it('refuses a price that keeps its money in tiers', function () {
    $this->stripe->plantPrice('price_tiered', 'prod_support', 3480, 'EUR', 'month',
        moduleMetadata(), billingScheme: 'tiered');

    expect(adoptModulePrice())->toBeNull();
});

it('still adopts a price that carries every one of Stripe\'s defaults', function () {
    // The direction that matters more than the four above: read the wrong way
    // round, the gate refuses every legitimate price and recognition becomes a
    // permanent no-op that nothing would ever alert on.
    $this->stripe->plantPrice('price_ordinary', 'prod_support', 3480, 'EUR', 'month', moduleMetadata());

    expect(adoptModulePrice())->toBe('price_ordinary');
});

it('warns about an unexplained price once a day, not once a booking', function () {
    Log::spy();

    $this->stripe->plantPrice('price_by_hand', 'prod_support', 3480, 'EUR', 'month', []);

    // ensure() runs inside a customer's module booking, so without a throttle
    // this line is written every time anybody books anything.
    adoptModulePrice();
    adoptModulePrice();
    adoptModulePrice();

    Log::shouldHaveReceived('warning')->once();
});

it('breaks a tie on created by the price id, so two runs agree', function () {
    // plantPrice defaults created to 1 and createPrice stamps count+1, so a
    // planted orphan can tie with a minted price. A tie decided by Stripe's list
    // order would adopt one price today and the other tomorrow.
    $this->stripe->plantPrice('price_bbb', 'prod_support', 3480, 'EUR', 'month',
        moduleMetadata(), created: 7);
    $this->stripe->plantPrice('price_aaa', 'prod_support', 3480, 'EUR', 'month',
        moduleMetadata(), created: 7);

    expect(adoptModulePrice())->toBe('price_aaa')
        ->and($this->stripe->archived)->toBe(['price_bbb']);
});