"use strict";
const _pluginVue2_normalizer = require("./_plugin-vue2_normalizer-V0q-tHlQ.cjs");
const FindRanges = (text, search) => {
  const ranges = [];
  let currentIndex = 0;
  let index = text.toLowerCase().indexOf(search.toLowerCase(), currentIndex);
  let i = 0;
  while (index > -1 && i < text.length) {
    currentIndex = index + search.length;
    ranges.push({ start: index, end: currentIndex });
    index = text.toLowerCase().indexOf(search.toLowerCase(), currentIndex);
    i++;
  }
  return ranges;
};
const _sfc_main = {
  name: "NcHighlight",
  props: {
    /**
     * The string to display
     */
    text: {
      type: String,
      default: ""
    },
    /**
     * The string to match and highlight
     */
    search: {
      type: String,
      default: ""
    },
    /**
     * The ranges to highlight, takes precedence over the search prop.
     */
    highlight: {
      type: Array,
      default: () => []
    }
  },
  computed: {
    /**
     * The indice ranges which should be highlighted.
     * If an array with ranges is provided, we use it. Otherwise
     * we calculate it based on the provided substring to highlight.
     *
     * @return {Array} The array of ranges to highlight
     */
    ranges() {
      let ranges = [];
      if (!this.search && this.highlight.length === 0) {
        return ranges;
      }
      if (this.highlight.length > 0) {
        ranges = this.highlight;
      } else {
        ranges = FindRanges(this.text, this.search);
      }
      ranges.forEach((range, i) => {
        if (range.end < range.start) {
          ranges[i] = {
            start: range.end,
            end: range.start
          };
        }
      });
      ranges = ranges.reduce((validRanges, range) => {
        if (range.start < this.text.length && range.end > 0) {
          validRanges.push({
            start: range.start < 0 ? 0 : range.start,
            end: range.end > this.text.length ? this.text.length : range.end
          });
        }
        return validRanges;
      }, []);
      ranges.sort((a, b) => {
        return a.start - b.start;
      });
      ranges = ranges.reduce((mergedRanges, range) => {
        if (!mergedRanges.length) {
          mergedRanges.push(range);
        } else {
          const idx = mergedRanges.length - 1;
          if (mergedRanges[idx].end >= range.start) {
            mergedRanges[idx] = {
              start: mergedRanges[idx].start,
              end: Math.max(mergedRanges[idx].end, range.end)
            };
          } else {
            mergedRanges.push(range);
          }
        }
        return mergedRanges;
      }, []);
      return ranges;
    },
    /**
     * Calculate the different chunks to show based on the ranges to highlight.
     *
     * @return {Array} The chunks
     */
    chunks() {
      if (this.ranges.length === 0) {
        return [{
          start: 0,
          end: this.text.length,
          highlight: false,
          text: this.text
        }];
      }
      const chunks = [];
      let currentIndex = 0;
      let currentRange = 0;
      while (currentIndex < this.text.length) {
        const range = this.ranges[currentRange];
        if (range.start === currentIndex) {
          chunks.push({
            ...range,
            highlight: true,
            text: this.text.slice(range.start, range.end)
          });
          currentRange++;
          currentIndex = range.end;
          if (currentRange >= this.ranges.length && currentIndex < this.text.length) {
            chunks.push({
              start: currentIndex,
              end: this.text.length,
              highlight: false,
              text: this.text.slice(currentIndex)
            });
            currentIndex = this.text.length;
          }
          continue;
        }
        chunks.push({
          start: currentIndex,
          end: range.start,
          highlight: false,
          text: this.text.slice(currentIndex, range.start)
        });
        currentIndex = range.start;
      }
      return chunks;
    }
  },
  /**
   * The render function to display the component
   *
   * @param {Function} h The function to create VNodes
   * @return {object} The created VNode
   */
  render(h) {
    if (!this.ranges.length) {
      return h("span", {}, this.text);
    }
    return h("span", {}, this.chunks.map((chunk) => {
      return chunk.highlight ? h("strong", {}, chunk.text) : chunk.text;
    }));
  }
};
const _sfc_render = null;
const _sfc_staticRenderFns = null;
var __component__ = /* @__PURE__ */ _pluginVue2_normalizer.normalizeComponent(
  _sfc_main,
  _sfc_render,
  _sfc_staticRenderFns,
  false,
  null,
  null
);
const NcHighlight = __component__.exports;
exports.FindRanges = FindRanges;
exports.NcHighlight = NcHighlight;