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refactor(iyzico): one word meant two things in one crate, so name the other one - #224

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refactor(iyzico): one word meant two things in one crate, so name the other one#224
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kasapay-iyzico had both meanings of RefundStatus in scope at once. classic/client.rs:11 and in_store/client.rs:9 import kasapay_core::RefundStatus — where one refund has got to. reporting/mod.rs:81 exported its own, which is not a refund's status at all but how much of a payment has gone back: NotRefunded, PartiallyRefunded, TotallyRefunded. One crate, one word, two concepts, and nothing warns a reader who has the first in scope.

Renamed to PaymentRefundStatus — iyzico's own name for the field it mirrors, paymentRefundStatus on payment/details. Variants, wire words and behaviour unchanged, so a caller who names the type changes the name and stops. Breaking, and in the changelog under Unreleased.

The check I did not write

A workspace-wide "no two public types share a name" rule was refused by its own measurement. It catches 15 names today and 14 are correct — Config, Credentials, Payment, Refund and Capture are each the right name inside their own adapter's namespace. Fourteen false positives is a check people learn to route around. RefundStatus was the only one where the same word named a different concept, so this is a rename, not a ratchet.

CONTEXT.md

New, 81 lines, and deliberately narrow: it settles which word wins where several circulate, and defines no behaviour — every entry names the type that does. Payer over shopper. Buyer is the details a provider demands; customer is the provider's own opaque handle and never a person. Release, not void (PayPal's word) or reversal (iyzico's). Prose takes -ise; -ize only where somebody else spelled it that way — the HTTP Authorization header, PayPal's authorization object, Status::Authorized.

Measured before writing, per crate, doc comments with no backticks:

-ise -ize
core 12 1
mollie 14 0
iyzico 13 18
paypal 0 35
paytr / stripe / kasapay 4 0

PayPal's 35 are all its own object noun; iyzico's are the Authorization header, its PayPOS "Authorize service" and prose tracking payouts.authorize(). So the rule is about who named the thing, not about a house style.

CLAUDE.md points at the file from one claim, one home — the same rule one level down — rather than as a new bolded rule, because that section says "So four rules" and a sixth would have been the exact defect it describes.

Also

shopperpayer: 6 uses against 301, all the same person.

Noticed, did not fix

  • PaymentDetail::refund_status keeps its field name. Unambiguous in context and renaming it is a second break for no gain.
  • State and Status distinguish nothing. Of 13 inbound wire-mirror enums, 4 say State and 9 Status; core has two Status and one State (ReleaseState). I expected a convention with one exception and there is no convention, so there is nothing to enforce and nothing to fix.
  • What does hold, 13 of 13: a type carrying a provider's word inbound has From<&str>, an Other(Box<str>) and as_str; core types have none of the three. iyzico's InitialStatus has no Other and is correct — it is outbound only, so there is nothing unknown to receive. That one might be worth a check; I have not measured what it would catch.

🤖 Generated with Claude Code

Summary by CodeRabbit

  • Breaking Changes

    • Renamed the public refund-status type to PaymentRefundStatus.
    • Refund-status values, behavior, and payment-provider wire mappings remain unchanged.
  • Documentation

    • Added terminology guidance covering payment roles, actions, states, provider concepts, and spelling conventions.
    • Updated payment documentation and comments to use consistent “payer” terminology.

… other one

`kasapay-iyzico` had both meanings of `RefundStatus` in scope at once.
`classic/client.rs` and `in_store/client.rs` import `kasapay_core::RefundStatus`
— where one refund has got to. `reporting/` exported its own, which is not a
refund's status at all but how much of a *payment* has gone back:
`NotRefunded`, `PartiallyRefunded`, `TotallyRefunded`. A reader with the first
in scope who meets the second gets no warning from anything.

Renamed to `PaymentRefundStatus`, which is iyzico's own name for the field it
mirrors — `paymentRefundStatus` on `payment/details`. Variants, wire words and
behaviour unchanged.

I measured a workspace-wide check for this before writing one, and it is
refused by its own measurement: 15 public type names are defined in more than
one crate today, and 14 are correct — `Config`, `Credentials`, `Payment`,
`Refund` and `Capture` are each the right name inside their own adapter. One
rule, fourteen false positives. So this is a rename and not a ratchet.

CONTEXT.md is new, and holds only which word wins where several circulate:
payer over shopper, `Buyer` being the details where `customer` is the
provider's opaque handle, release over void or reversal, -ise in prose except
where somebody else spelled it -ize. It defines no behaviour — each entry names
the type that does. CLAUDE.md points at it from "one claim, one home", which is
the same rule one level down.

`shopper` went with it: 6 uses against 301 of `payer`, all meaning the same
person.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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  • crates/kasapay-iyzico/src/reporting/client.rs

📝 Walkthrough

Walkthrough

The PR renames iyzico’s public RefundStatus type to PaymentRefundStatus without changing behavior or wire values. It also adds terminology guidance and updates documentation comments from “shopper” to “payer.”

Changes

Terminology and public API

Layer / File(s) Summary
Rename the iyzico refund status API
crates/kasapay-iyzico/src/reporting/client.rs, crates/kasapay-iyzico/src/reporting/mod.rs, CHANGELOG.md
The reporting API, deserialization, conversions, re-export, and tests now use PaymentRefundStatus. Variants, wire values, and behavior remain unchanged.
Standardize payment terminology
CONTEXT.md, CLAUDE.md, crates/kasapay-iyzico/src/errors.rs, crates/kasapay-iyzico/src/terminal/mod.rs, crates/kasapay-stripe/tests/payment_intent.rs
Project guidance defines payment terminology. Documentation and test comments use “payer” instead of “shopper.”

Estimated code review effort: 2 (Simple) | ~10 minutes

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Check name Status Explanation
Description Check ✅ Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check ✅ Passed The title identifies a terminology refactor in the iyzico crate and reflects the rename caused by an ambiguous type name.
Docstring Coverage ✅ Passed Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.
Linked Issues check ✅ Passed Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check ✅ Passed Check skipped because no linked issues were found for this pull request.
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Actionable comments posted: 1

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Inline comments:
In `@crates/kasapay-iyzico/src/reporting/client.rs`:
- Around line 973-975: Update the refund-status test around
PaymentRefundStatus::from to assert each input maps directly to the expected
NotRefunded, PartiallyRefunded, and TotallyRefunded variants, rather than
comparing the round-tripped string representation.
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Reviewing files that changed from the base of the PR and between 2fdc18b and 27e03e8.

📒 Files selected for processing (8)
  • CHANGELOG.md
  • CLAUDE.md
  • CONTEXT.md
  • crates/kasapay-iyzico/src/errors.rs
  • crates/kasapay-iyzico/src/reporting/client.rs
  • crates/kasapay-iyzico/src/reporting/mod.rs
  • crates/kasapay-iyzico/src/terminal/mod.rs
  • crates/kasapay-stripe/tests/payment_intent.rs

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Comment thread crates/kasapay-iyzico/src/reporting/client.rs Outdated
…ut one

CodeRabbit caught it on a line this branch touched: `assert_eq!(T::from(w).to_string(), w)`
cannot fail for the mapping it names. `from` sends an unknown word to
`Other(word)` and `as_str` hands that same word back, so the assertion holds
with every named arm deleted.

Twelve tests in the workspace are this shape, across four crates, and all
twelve types echo the input — measured, not guessed. Two are in this file and
are fixed here; the other ten are their own change rather than swept into a
branch about vocabulary.

`the_documented_payment_status_codes_round_trip_and_the_rest_are_kept`, forty
lines up in this same file, was already doing it right against `From<i64>`.
The string-based ones drifted from a pattern that was here all along.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
@productdevbook
productdevbook merged commit 0f0005a into main Aug 20, 2026
7 of 8 checks passed
@productdevbook
productdevbook deleted the domain-language branch August 20, 2026 12:54
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