import {ReflectionFunction, stringifyType, typeOf} from '@deepkit/type'
import type {Dependencies, Signature, Signatures, OneType} from '../interfaces/type.js'

interface LocalSignatures<T> {
   one:  (a: T) => OneType<T>
}

export const square =
   <T>(dep: Dependencies<'multiply', T>): Signature<'square', T> =>
   z => dep.multiply(z, z)

const sqRefl = ReflectionFunction.from(square)
console.log(
   ' For generic square I know that:',
   sqRefl,
   sqRefl.getParameterNames(),
   sqRefl.getParameterType('dep'),
   "\n  final dep type:",
   stringifyType(sqRefl.getParameterType('dep')))

console.log('   because', typeOf<LocalSignatures<number>['one']>())
console.log('   readable:', stringifyType(typeOf<LocalSignatures<number>['one']>()))