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import type { Registry } from 'https://deno.land/x/polkadot@0.2.33/types-codec/types/index.ts';import type { MetadataLatest, PalletMetadataLatest, SiVariant } from '../../../interfaces/index.ts';import type { PortableRegistry } from '../../../metadata/index.ts';import type { CallFunction } from '../../../types/index.ts';import type { Extrinsics } from '../types.ts';
import { lazyMethod, objectSpread, stringCamelCase } from 'https://deno.land/x/polkadot@0.2.33/util/mod.ts';
import { lazyVariants } from '../../../create/lazy.ts';import { getSiName } from '../../util/index.ts';import { objectNameToCamel } from '../util.ts';import { createUnchecked } from './createUnchecked.ts';
export function filterCallsSome ({ calls }: PalletMetadataLatest): boolean {  return calls.isSome;}
export function createCallFunction (registry: Registry, lookup: PortableRegistry, variant: SiVariant, sectionName: string, sectionIndex: number): CallFunction {  const { fields, index } = variant;  const args = new Array<Record<string, unknown>>(fields.length);
  for (let a = 0; a < fields.length; a++) {    const { name, type, typeName } = fields[a];
    args[a] = objectSpread(      {        name: stringCamelCase(name.unwrapOr(`param${a}`)),        type: getSiName(lookup, type)      },      typeName.isSome        ? { typeName: typeName.unwrap() }        : null    );  }
  return createUnchecked(    registry,    sectionName,    new Uint8Array([sectionIndex, index.toNumber()]),    registry.createTypeUnsafe('FunctionMetadataLatest', [objectSpread({ args }, variant)])  );}
/** @internal */export function decorateExtrinsics (registry: Registry, { lookup, pallets }: MetadataLatest, version: number): Extrinsics {  const result: Extrinsics = {};  const filtered = pallets.filter(filterCallsSome);
  for (let i = 0; i < filtered.length; i++) {    const { calls, index, name } = filtered[i];    const sectionName = stringCamelCase(name);    const sectionIndex = version >= 12 ? index.toNumber() : i;
    lazyMethod(result, sectionName, () =>      lazyVariants(lookup, calls.unwrap(), objectNameToCamel, (variant: SiVariant) =>        createCallFunction(registry, lookup, variant, sectionName, sectionIndex)      )    );  }
  return result;}