abstract-constructor-params.ts

import {Abstract} from './abstract'
import {Type} from './type'

export type AbstractConstructorParams<T extends Type> =
  ConstructorParameters<T> extends {
    length: 1
  }
    ? [Abstract<ConstructorParameters<T>[0]>]
    : ConstructorParameters<T> extends {length: 2}
    ? [
        Abstract<ConstructorParameters<T>[0]>,
        Abstract<ConstructorParameters<T>[1]>
      ]
    : ConstructorParameters<T> extends {length: 3}
    ? [
        Abstract<ConstructorParameters<T>[0]>,
        Abstract<ConstructorParameters<T>[1]>,
        Abstract<ConstructorParameters<T>[2]>
      ]
    : ConstructorParameters<T> extends {length: 4}
    ? [
        Abstract<ConstructorParameters<T>[0]>,
        Abstract<ConstructorParameters<T>[1]>,
        Abstract<ConstructorParameters<T>[2]>,
        Abstract<ConstructorParameters<T>[3]>
      ]
    : ConstructorParameters<T> extends {length: 5}
    ? [
        Abstract<ConstructorParameters<T>[0]>,
        Abstract<ConstructorParameters<T>[1]>,
        Abstract<ConstructorParameters<T>[2]>,
        Abstract<ConstructorParameters<T>[3]>,
        Abstract<ConstructorParameters<T>[4]>
      ]
      : ConstructorParameters<T> extends {length: 6}
    ? [
        Abstract<ConstructorParameters<T>[0]>,
        Abstract<ConstructorParameters<T>[1]>,
        Abstract<ConstructorParameters<T>[2]>,
        Abstract<ConstructorParameters<T>[3]>,
        Abstract<ConstructorParameters<T>[4]>,
        Abstract<ConstructorParameters<T>[5]>
      ]
      : ConstructorParameters<T> extends {length: 7}
      ? [
        Abstract<ConstructorParameters<T>[0]>,
        Abstract<ConstructorParameters<T>[1]>,
        Abstract<ConstructorParameters<T>[2]>,
        Abstract<ConstructorParameters<T>[3]>,
        Abstract<ConstructorParameters<T>[4]>,
        Abstract<ConstructorParameters<T>[5]>,
        Abstract<ConstructorParameters<T>[6]>,
      ]
      : ConstructorParameters<T> extends {length: 8}
      ? [
        Abstract<ConstructorParameters<T>[0]>,
        Abstract<ConstructorParameters<T>[1]>,
        Abstract<ConstructorParameters<T>[2]>,
        Abstract<ConstructorParameters<T>[3]>,
        Abstract<ConstructorParameters<T>[4]>,
        Abstract<ConstructorParameters<T>[5]>,
        Abstract<ConstructorParameters<T>[6]>,
        Abstract<ConstructorParameters<T>[7]>,
      ]
    : []

abstract.ts

export type Abstract<T = any> = abstract new (...params: any[]) => T

create-factory-provider.ts

import {Type, TypeConstructorParams} from '@webauthn/shared-api-interfaces'

export function createFactoryProvider<T extends Type>(
  constructor: T,
  dependencies: TypeConstructorParams<T>
) {
  return {
    provide: constructor,
    useFactory(...params: ConstructorParameters<T>) {
      return new constructor(...params)
    },
    deps: dependencies,
  }
}

create-service-provider.ts

import {
  Type,
  Abstract,
  TypeConstructorParams,
  AbstractConstructorParams,
} from '@webauthn/shared-api-interfaces'

export function createServiceProvider<A extends Abstract, T extends Type>(
  constructor: A,
  implementation: T,
  dependencies: TypeConstructorParams<T> | AbstractConstructorParams<T>
) {
  return {
    provide: constructor,
    useFactory(...params: ConstructorParameters<T>) {
      return new implementation(...params)
    },
    deps: dependencies,
  }
}

create-use-case-provider.ts

import {
  Type,
  UseCase,
  AbstractConstructorParams,
} from '@webauthn/shared-api-interfaces'

export function createUseCaseProvider<
  T extends Type<UseCase<unknown, unknown>>
>(useCase: T, dependencies: AbstractConstructorParams<T>) {
  return {
    provide: useCase,
    useFactory(...params: ConstructorParameters<T>) {
      return new useCase(...params)
    },
    deps: dependencies,
  }
}

type-constructor-params.ts

import {Type} from './type'

type TypeOr<T, O> = Type<T> | O

type TypeOrString<T> = TypeOr<T, string>

export type TypeConstructorParams<T extends Type> =
  ConstructorParameters<T> extends {
    length: 1
  }
    ? [TypeOrString<ConstructorParameters<T>[0]>]
    : ConstructorParameters<T> extends {length: 2}
    ? [
        TypeOrString<ConstructorParameters<T>[0]>,
        TypeOrString<ConstructorParameters<T>[1]>
      ]
    : ConstructorParameters<T> extends {length: 3}
    ? [
        TypeOrString<ConstructorParameters<T>[0]>,
        TypeOrString<ConstructorParameters<T>[1]>,
        TypeOrString<ConstructorParameters<T>[2]>
      ]
    : ConstructorParameters<T> extends {length: 4}
    ? [
        TypeOrString<ConstructorParameters<T>[0]>,
        TypeOrString<ConstructorParameters<T>[1]>,
        TypeOrString<ConstructorParameters<T>[2]>,
        TypeOrString<ConstructorParameters<T>[3]>
      ]
    : ConstructorParameters<T> extends {length: 5}
    ? [
        TypeOrString<ConstructorParameters<T>[0]>,
        TypeOrString<ConstructorParameters<T>[1]>,
        TypeOrString<ConstructorParameters<T>[2]>,
        TypeOrString<ConstructorParameters<T>[3]>,
        TypeOrString<ConstructorParameters<T>[4]>
      ]
    : ConstructorParameters<T> extends {length: 6}
    ? [
        TypeOrString<ConstructorParameters<T>[0]>,
        TypeOrString<ConstructorParameters<T>[1]>,
        TypeOrString<ConstructorParameters<T>[2]>,
        TypeOrString<ConstructorParameters<T>[3]>,
        TypeOrString<ConstructorParameters<T>[4]>,
        TypeOrString<ConstructorParameters<T>[5]>
      ]
    : ConstructorParameters<T> extends {length: 7}
    ? [
        TypeOrString<ConstructorParameters<T>[0]>,
        TypeOrString<ConstructorParameters<T>[1]>,
        TypeOrString<ConstructorParameters<T>[2]>,
        TypeOrString<ConstructorParameters<T>[3]>,
        TypeOrString<ConstructorParameters<T>[4]>,
        TypeOrString<ConstructorParameters<T>[5]>,
        TypeOrString<ConstructorParameters<T>[6]>
      ]
    : ConstructorParameters<T> extends {length: 8}
    ? [
        TypeOrString<ConstructorParameters<T>[0]>,
        TypeOrString<ConstructorParameters<T>[1]>,
        TypeOrString<ConstructorParameters<T>[2]>,
        TypeOrString<ConstructorParameters<T>[3]>,
        TypeOrString<ConstructorParameters<T>[4]>,
        TypeOrString<ConstructorParameters<T>[5]>,
        TypeOrString<ConstructorParameters<T>[6]>,
        TypeOrString<ConstructorParameters<T>[7]>
      ]
    : ConstructorParameters<T> extends {length: 9}
    ? [
        TypeOrString<ConstructorParameters<T>[0]>,
        TypeOrString<ConstructorParameters<T>[1]>,
        TypeOrString<ConstructorParameters<T>[2]>,
        TypeOrString<ConstructorParameters<T>[3]>,
        TypeOrString<ConstructorParameters<T>[4]>,
        TypeOrString<ConstructorParameters<T>[5]>,
        TypeOrString<ConstructorParameters<T>[6]>,
        TypeOrString<ConstructorParameters<T>[7]>,
        TypeOrString<ConstructorParameters<T>[8]>
      ]
    : ConstructorParameters<T> extends {length: 10}
    ? [
        TypeOrString<ConstructorParameters<T>[0]>,
        TypeOrString<ConstructorParameters<T>[1]>,
        TypeOrString<ConstructorParameters<T>[2]>,
        TypeOrString<ConstructorParameters<T>[3]>,
        TypeOrString<ConstructorParameters<T>[4]>,
        TypeOrString<ConstructorParameters<T>[5]>,
        TypeOrString<ConstructorParameters<T>[6]>,
        TypeOrString<ConstructorParameters<T>[7]>,
        TypeOrString<ConstructorParameters<T>[8]>,
        TypeOrString<ConstructorParameters<T>[9]>
      ]
    : ConstructorParameters<T> extends {length: 11}
    ? [
        TypeOrString<ConstructorParameters<T>[0]>,
        TypeOrString<ConstructorParameters<T>[1]>,
        TypeOrString<ConstructorParameters<T>[2]>,
        TypeOrString<ConstructorParameters<T>[3]>,
        TypeOrString<ConstructorParameters<T>[4]>,
        TypeOrString<ConstructorParameters<T>[5]>,
        TypeOrString<ConstructorParameters<T>[6]>,
        TypeOrString<ConstructorParameters<T>[7]>,
        TypeOrString<ConstructorParameters<T>[8]>,
        TypeOrString<ConstructorParameters<T>[9]>,
        TypeOrString<ConstructorParameters<T>[10]>
      ]
    : ConstructorParameters<T> extends {length: 12}
    ? [
        TypeOrString<ConstructorParameters<T>[0]>,
        TypeOrString<ConstructorParameters<T>[1]>,
        TypeOrString<ConstructorParameters<T>[2]>,
        TypeOrString<ConstructorParameters<T>[3]>,
        TypeOrString<ConstructorParameters<T>[4]>,
        TypeOrString<ConstructorParameters<T>[5]>,
        TypeOrString<ConstructorParameters<T>[6]>,
        TypeOrString<ConstructorParameters<T>[7]>,
        TypeOrString<ConstructorParameters<T>[8]>,
        TypeOrString<ConstructorParameters<T>[9]>,
        TypeOrString<ConstructorParameters<T>[10]>,
        TypeOrString<ConstructorParameters<T>[11]>
      ]
    : never

type.ts

export interface Type<T = any> extends ReturnType<FunctionConstructor> {
  new (...params: any[]): T
}

use-case.ts

import {Observable} from 'rxjs'

export interface UseCase<I, O> {
  execute(input: I): Promise<O> | Observable<O>
}