"use strict";
Object.defineProperty(exports, Symbol.toStringTag, { value: "Module" });
const useProps = require("./useProps.js");
const Vue = require("vue");
function useAllowCreate(props, states) {
  const { aliasProps, getLabel, getValue } = useProps.useProps(props);
  const createOptionCount = Vue.ref(0);
  const cachedSelectedOption = Vue.ref();
  const enableAllowCreateMode = Vue.computed(() => {
    return props.allowCreate && props.filterable;
  });
  Vue.watch(() => props.options, (options) => {
    const optionLabelsSet = new Set(options.map((option) => getLabel(option)));
    states.createdOptions = states.createdOptions.filter((createdOption) => !optionLabelsSet.has(getLabel(createdOption)));
  });
  function hasExistingOption(query) {
    const hasOption = (option) => getLabel(option) === query;
    return props.options && props.options.some(hasOption) || states.createdOptions.some(hasOption);
  }
  function selectNewOption(option) {
    if (!enableAllowCreateMode.value) return;
    if (props.multiple && option.created) createOptionCount.value++;
    else cachedSelectedOption.value = option;
  }
  function createNewOption(query) {
    if (enableAllowCreateMode.value) if (query && query.length > 0) {
      if (hasExistingOption(query)) {
        states.createdOptions = states.createdOptions.filter((createdOption) => getLabel(createdOption) !== states.previousQuery);
        return;
      }
      const newOption = {
        [aliasProps.value.value]: query,
        [aliasProps.value.label]: query,
        created: true,
        [aliasProps.value.disabled]: false
      };
      if (states.createdOptions.length >= createOptionCount.value) states.createdOptions[createOptionCount.value] = newOption;
      else states.createdOptions.push(newOption);
    } else if (props.multiple) states.createdOptions.length = createOptionCount.value;
    else {
      const selectedOption = cachedSelectedOption.value;
      states.createdOptions.length = 0;
      if (selectedOption && selectedOption.created) states.createdOptions.push(selectedOption);
    }
  }
  function removeNewOption(option) {
    if (!enableAllowCreateMode.value || !option || !option.created || option.created && props.reserveKeyword && states.inputValue === getLabel(option)) return;
    const idx = states.createdOptions.findIndex((it) => getValue(it) === getValue(option));
    if (~idx) {
      states.createdOptions.splice(idx, 1);
      createOptionCount.value--;
    }
  }
  function clearAllNewOption() {
    if (enableAllowCreateMode.value) {
      states.createdOptions.length = 0;
      createOptionCount.value = 0;
    }
  }
  return {
    createNewOption,
    removeNewOption,
    selectNewOption,
    clearAllNewOption
  };
}
exports.useAllowCreate = useAllowCreate;
