@jil/args/src/utils/mapParserOptions.ts

A convention based argument parsing and formatting library, with strict validation checks

import {OptionConfig, OptionMap, ParamConfig, ParserOptions, PrimitiveType, ValueType} from '../types';

export function mapParserOptions<O extends object, P extends PrimitiveType[]>(
  configs: ParserOptions<O, P>,
  options: OptionMap,
  params: ValueType[],
  {
    onCommand,
    onOption,
    onParam,
  }: {
    onCommand?: (command: string) => void;
    onOption?: (config: OptionConfig, value: ValueType, name: string) => void;
    onParam?: (config: ParamConfig, value: ValueType, index: number) => void;
  },
) {
  if (onCommand && Array.isArray(configs.commands)) {
    configs.commands.forEach(command => {
      onCommand(command);
    });
  }

  if (onOption) {
    Object.keys(configs.options).forEach(name => {
      onOption(configs.options[name as keyof O], options[name], name);
    });
  }

  if (onParam && configs.params) {
    configs.params.forEach((config, i) => {
      onParam(config, params[i], i);
    });
  }
}