Type and Enum duplicated when schema property enum as $ref

[Ginxo]

openapi-typescript version

7.5.2

Node.js version

20.11.0

OS + version

Fedora Linux 41

Description

after executing the tool with --root-types --root-types-no-schema-prefix --enum flags (since types are required for not refactoring the whole application and Schema prefix avoided due to the same reason...) some of the enums are duplicated also as type aliases, which is producing an error at TS validation time.

I'm clicking My OpenAPI schema is valid and passes the [Redocly validator](https://redocly.com/docs/cli/commands/lint/) (npx @redocly/cli@latest lint) * because it is required, I have few issues but none of them related with the enums

It is mandatory for us to use --root-types-no-schema-prefix not to affect the whole application

Reproduction

npx openapi-typescript https://api.stage.openshift.com/api/clusters_mgmt/v1/openapi -o src/types/clusters_mgmt.v1/schema.ts --root-types --root-types-no-schema-prefix --enum

Expected result

Maybe different type alias name, see case for AWSInfrastructureAccessRoleState where enum is AWSInfrastructureAccessRoleState (AWS uppercase) and type AwsInfrastructureAccessRoleGrantState (Aws upper first)

Required

• My OpenAPI schema is valid and passes the Redocly validator (npx @redocly/cli@latest lint)

Extra

• I’m willing to open a PR (see CONTRIBUTING.md)

[Ginxo]

@drwpow @htunnicliff @kerwanp any idea about how to workaround it?

[Ginxo]

for now as workaround, I'm moving enums to enums.ts file and pointing every reference to it

export enum AWSInfrastructureAccessRoleGrantState {
  deleting = 'deleting',
  failed = 'failed',
  pending = 'pending',
  ready = 'ready',
  removed = 'removed',
}
...
...
export enum WildcardPolicy {
  WildcardsAllowed = 'WildcardsAllowed',
  WildcardsDisallowed = 'WildcardsDisallowed',
}

and generating the rest of the model without --enum flag

npx openapi-typescript https://api.stage.openshift.com/api/clusters_mgmt/v1/openapi -o src/types/clusters_mgmt.v1/schema.ts --root-types --root-types-no-schema-prefix

this way, whenever the issue is solved or a workaround exists the refactoring should be pretty straightforward

[Ginxo]

so I think we came to a better conclusion by generating the model twice

• one for Schema without enum and without prefix
• one for enums with Schema prefix

like:

npx openapi-typescript ./openapi/clusters_mgmt.v1.json -o src/types/clusters_mgmt.v1/index.ts --root-types --root-types-no-schema-prefix
npx openapi-typescript ./openapi/clusters_mgmt.v1.json -o src/types/clusters_mgmt.v1/enums.ts --root-types --enum