import type { Static, TObject } from "core/utils";
import type { JSONSchema7 } from "json-schema";
import { cloneDeep, omit, pick } from "lodash-es";

export function extractSchema<
   Schema extends TObject,
   Keys extends keyof Schema["properties"],
   Config extends Static<Schema>
>(
   schema: Schema,
   config: Config,
   keys: Keys[]
): [
   JSONSchema7,
   Partial<Config>,
   {
      [K in Keys]: {
         // @ts-ignore
         config: Config[K];
         schema: Schema["properties"][K];
      };
   }
] {
   if (!schema.properties) {
      return [{ ...schema }, config, {} as any];
   }

   const newSchema = cloneDeep(schema);
   const updated = {
      ...newSchema,
      properties: omit(newSchema.properties, keys)
   };
   if (updated.required) {
      updated.required = updated.required.filter((key) => !keys.includes(key as any));
   }

   const extracted = {} as any;
   for (const key of keys) {
      extracted[key] = {
         // @ts-ignore
         config: config[key],
         // @ts-ignore
         schema: newSchema.properties[key]
      };
   }

   const reducedConfig = omit(config, keys) as any;

   return [updated, reducedConfig, extracted];
}