sanity-plugin-seo/src/utils/detectSchemaType.ts

The Sanity SEO Field Plugin simplifies the process of generating SEO fields for various types of content. It enhances structured data, making your content more accessible and understandable for search engines, ultimately improving your site's visibility a

import { Schema } from '../types/Types';
import seoType from '../schemas/types/seo/list/seoType';
import seo from '../patterns/seo';

type List =
  | string
  | {
      optgroup?: string;
      list?: string[];
    };

const findSchemaType = (typeList: List[], schemaType: string) => {
  const result = typeList.find(item => {
    if (typeof item === 'string' && item === schemaType) {
      return schemaType;
    }
    if (typeof item === 'object' && item.optgroup && item.list) {
      const findInList = item.list.find(
        (subitem: string) => subitem === schemaType.replace(/([A-Z])/g, ' $1').trim()
      );
      if (findInList) {
        return schemaType;
      }
      return undefined;
    }
    return undefined;
  });
  if (typeof result === 'string') {
    return schemaType;
  }
  if (typeof result === 'object' && result.optgroup && result.list) {
    const findInList = result?.list.find(
      (subitem: string) => subitem === schemaType.replace(/([A-Z])/g, ' $1').trim()
    );
    if (findInList) {
      return schemaType;
    }
    return undefined;
  }
  return undefined;
};

const detectSchemaType = (schema: Schema) => {
  const { type } = schema;
  switch (type) {
    case findSchemaType(seoType, type):
      return seo;
    default:
      return undefined;
  }
};

export default detectSchemaType;