graphql-request/src/layers/2_generator/createCodeGenerator.ts

import type { Config } from './generateCode.js'

export type CodeGeneratorImplementation = (config: Config) => CodeGeneratorImplementationResult
type CodeGeneratorImplementationResult = string

interface CodeGeneratorResult {
  moduleName: string
  code: string
}

export type CodeGenerator = (config: Config) => CodeGeneratorResult

export type CodeGeneratorConstructor = (
  moduleName: string,
  codeGenerator: CodeGeneratorImplementation,
) => { moduleName: string; generate: CodeGenerator }

export const createCodeGenerator: CodeGeneratorConstructor = (moduleName: string, codeGeneratorImplementation) => {
  const generate = (config: Config) => {
    const code = codeGeneratorImplementation(config)
    return {
      code,
      moduleName,
    }
  }
  return { moduleName, generate }
}