text: import format from "./format.js";
  import { modifierPhases } from "../enums.js";
  var INVALID_MODIFIER_ERROR = 'Popper: modifier "%s" provided an invalid %s property, expected %s but got %s';
  var MISSING_DEPENDENCY_ERROR = 'Popper: modifier "%s" requires "%s", but "%s" modifier is not available';
  var VALID_PROPERTIES = ['name', 'enabled', 'phase', 'fn', 'effect', 'requires', 'options'];
  export default function validateModifiers(modifiers) {
    modifiers.forEach(function (modifier) {
      Object.keys(modifier).forEach(function (key) {
        switch (key) {
          case 'name':
            if (typeof modifier.name !== 'string') {
              console.error(format(INVALID_MODIFIER_ERROR, String(modifier.name), '"name"', '"string"', "\"" + String(modifier.name) + "\""));
            }
  
            break;
  
          case 'enabled':
            if (typeof modifier.enabled !== 'boolean') {
              console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"enabled"', '"boolean"', "\"" + String(modifier.enabled) + "\""));
            }
  
          case 'phase':
            if (!modifierPhases.includes(modifier.phase)) {
              console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"phase"', "either " + modifierPhases.join(', '), "\"" + String(modifier.phase) + "\""));
            }
  
            break;
  
          case 'fn':
            if (typeof modifier.fn !== 'function') {
              console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"fn"', '"function"', "\"" + String(modifier.fn) + "\""));
            }
  
            break;
  
          case 'effect':
            if (typeof modifier.effect !== 'function') {
              console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"effect"', '"function"', "\"" + String(modifier.fn) + "\""));
            }
  
            break;
  
          case 'requires':
            if (!Array.isArray(modifier.requires)) {
              console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"requires"', '"array"', "\"" + String(modifier.requires) + "\""));
            }
  
            break;
  
          case 'requiresIfExists':
            if (!Array.isArray(modifier.requiresIfExists)) {
              console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"requiresIfExists"', '"array"', "\"" + String(modifier.requiresIfExists) + "\""));
            }
  
            break;
  
          case 'options':
          case 'data':
            break;
  
          default:
            console.error("PopperJS: an invalid property has been provided to the \"" + modifier.name + "\" modifier, valid properties are " + VALID_PROPERTIES.map(function (s) {
              return "\"" + s + "\"";
            }).join(', ') + "; but \"" + key + "\" was provided.");
        }
  
        modifier.requires && modifier.requires.forEach(function (requirement) {
          if (modifiers.find(function (mod) {
            return mod.name === requirement;
          }) == null) {
            console.error(format(MISSING_DEPENDENCY_ERROR, String(modifier.name), requirement, requirement));
          }
        });
      });
    });
  }