[v2] `paramsStyles` and `queryStyles` as function

[KingSora]

Describe the feature

Currently paramsStyles and queryStyles are objects in the openapi() meta plugin. The problem here is that those values are coupled to the input schema. I was thinking that it might be easier to write those if orpc would allow those to also be notated by functions, where the function receives the current field name and the standard schema of the field. This way it would be much easier and shorter to define those styles for larger input objects. It would also be possible to define re-usable helper functions for all input which follows the same logic / styles.

oc.meta(openapi({ 
  paramsStyle: (field, schema) => {
    // since I know that my standard schema is zod, I can check whether the input schema field is ZodArray / Object or anything else
    return isZodArray(schema) ? 'comma-delimited-array' : 'primitive';
  }
})).input(
  z.object({ 
    params: z.object({
      someArray: z.array(),
      someValue: z.string(),
    }),
 });

As for metadata merging, in the case of a function the latest call would overwrite the whole function.

Additional information

• Would you be willing to help implement this feature?

[pullfrog]

  ^{｜ Build this ➔ ｜ Make a plan ➔}

[dinwwwh]

There no standard way to extract field, schema from a standard schema

[KingSora]

I see.. not sure whether there could be another ergonomic solution for defining the styles - the field param could also be the current query / path key / field and not the field in the schema itself, while schema could also be the whole input schema.

A potential helper function then would need to be aware of whether the input schema is detailed or not