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import { globToRegExp } from "./deps.ts";import { GlobToRegExpOptions } from "./types.ts";
export type PatternLike = string | string[];
export class Patterns {  #values: Set<string> = new Set();  #negate: Set<string> = new Set();
  #patterns?: RegExp[];  #negated?: RegExp[];
  #built = false;
  constructor(values: PatternLike = []) {    this.add(values);  }
  build() {    if (!this.#built) {      this.#patterns = this.#build(this.#values);      this.#negated = this.#build(this.#negate);      this.#built = true;    }  }
  add(value: PatternLike) {    value = typeof value === "string" ? [value] : value;    for (let element of value) {      if (element.startsWith("!")) {        element = element.substring(1);        this.#negate.add(element);      }      this.#values.add(element);    }
    return this;  }
  test(string: string): boolean {    if (!this.#built) {      throw new Error("Patterns must be built before testing.");    }
    const matches = this.#patterns!.some((pattern) => pattern.test(string));    const negated = this.#negated!.some((pattern) => pattern.test(string));
    return matches && negated === false;  }
  #globToRegExp(pattern: string, options: GlobToRegExpOptions = {    extended: true,    globstar: true,    caseInsensitive: false,  }): RegExp {    return globToRegExp(pattern, options);  }
  #build(patterns: Set<string>) {    return Array.from(patterns).map((value) => this.#globToRegExp(value));  }}