import { Context } from '../context';
export interface Dictionary<T> {
  [key: string]: T;
}


export type ScaffolderTransformer = (parameterValue: any, context: Context) => any;
export type ScaffolderFunction = (context: Context) => any;

export interface ParametersOptionsChoices {
  values: string
}

export interface ParameterOptions {
  question?: string;
  validation?: (parameterValue: any) => string | boolean;
  choices?: ParametersOptionsChoices
}

export interface Hooks {
  preTemplateGeneration?: (context: Context) => any | Promise<any>;
  postTemplateGeneration?: (context: Context) => any | Promise<any>;
  preAskingQuestions?: (context: Omit<Context, 'parametersValues'>) => any | Promise<any>;
}

// this interface should extend a common options interface with transformers. function and parameters options
export interface TemplateOptions {
  hooks?: Hooks
}

export interface CommonConfig {
  transformers: Dictionary<ScaffolderTransformer>;
  functions: Dictionary<ScaffolderFunction>;
  parametersOptions: Dictionary<Dictionary<ParameterOptions>>;
}


export interface Config extends CommonConfig {
  templatesOptions: Dictionary<Dictionary<TemplateOptions>>;
}