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import { xsd } from "../namespaces/mod.ts";//import { string } from "yargs";import type {  Property,  PropertyPrototype,  Schema,  SchemaPrototype,} from "./schema.ts";
export const expandSchema = (schemaPrototype: SchemaPrototype) => {  const expandArray = <T extends string>(stringOrStrings: T | readonly T[]) => {    return Array.isArray(stringOrStrings) ? stringOrStrings : [stringOrStrings];  };
  const expandSchemaProperty = (    stringOrProperty: string | PropertyPrototype  ) => {    if (typeof stringOrProperty === "string") {      return {        "@id": stringOrProperty,        "@type": xsd.string,      };    }
    const property = stringOrProperty;
    if (!property["@id"]) {      throw new Error(`Invalid schema, "@id" key for property missing`);    }
    const validKeys = [      "@context",      "@id",      "@type",      "@array",      "@optional",      "@multilang",    ] as const;
    const baseProperty: Record<string, any> = {      "@id": "",    };
    const expandedProperty = Object.keys(property).reduce((acc, key) => {      if (key === "@context") {        acc[key] = expandSchema(property[key]!);      } else if (validKeys.includes(key as keyof PropertyPrototype)) {        acc[key] = property[key as keyof PropertyPrototype] as any;      }      return acc;    }, baseProperty);
    if (!baseProperty["@type"] && !baseProperty["@context"]) {      baseProperty["@type"] = xsd.string;    }
    return expandedProperty as Property;  };
  const baseSchema: Schema = {    "@type": [],  };
  return Object.keys(schemaPrototype).reduce((acc, key) => {    if (key === "@type") {      acc[key] = expandArray(schemaPrototype[key]);    } else {      acc[key] = expandSchemaProperty(        schemaPrototype[key] as string | PropertyPrototype      );    }    return acc;  }, baseSchema);};
export const getSchemaProperties = (schema: Schema) => {  const { "@type": _ommitedType, ...properties } = schema;  return properties as Record<string, Property>;};