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cool-domain-web/src/lib/factory.ts
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feat: save ignored tlds in cookies
2026-06-26 14:47:20 +02:00

146 lines
4.1 KiB
TypeScript

const rawTldList = () => import("@/data/tld.txt?raw");
const englishWords = () => import("@/data/english.txt?raw");
const frenchWords = () => import("@/data/french.txt?raw");
import { randomElement, shuffled } from "./random";
import type { Domain } from "@/types";
export class DomainFactory {
error: string | null = null;
words: Record<string, string[]> = {};
generated: string[] = [];
history: Domain[] = [];
tldList: string[] = [];
ignoredTldList: string[] = [];
async init(lang: string | null = null) {
if (lang && !this.words[lang]) {
switch (lang) {
case "en":
this.words.en = this.initWords((await englishWords()).default);
break;
case "fr":
this.words.fr = this.initWords((await frenchWords()).default);
break;
}
}
if (this.tldList.length == 0) {
this.tldList = (await rawTldList()).default.trim().split("\n");
}
}
escapeWord(word: string): string {
return word
.normalize("NFD")
.toLowerCase()
.replace(/[^a-z0-9-]/g, "")
.trim();
}
initWords(raw: string): string[] {
return raw
.split("\n")
.map((word) => {
word = this.escapeWord(word);
if (word.length == 0) {
return null;
}
return word;
})
.filter((word) => word !== null);
}
randomWord(lang: string): string {
if (!this.words[lang]) {
this.error = `No words for language: ${lang}`;
throw new Error(this.error);
}
return randomElement(this.words[lang]);
}
randomDomain(word: string): string | null {
for (const tld of shuffled(this.tldList.slice())) {
if (this.ignoredTld(tld)) {
continue;
}
const tldEscaped: string = tld.replace(".", "");
if (word.endsWith(tldEscaped) && word.length > tldEscaped.length + 2) {
const domain = `${word.substring(0, word.length - tldEscaped.length)}.${tld}`;
if (!domain.includes("-.") && !this.generated.includes(domain)) {
this.generated.push(domain);
return domain;
}
}
}
return null;
}
next(lang: string): Promise<Domain> {
return new Promise((resolve, reject) => {
this.init(lang)
.then(() => {
let k = 10000;
while (k > 0) {
k--;
const word = this.randomWord(lang);
const domain = this.randomDomain(word);
if (domain) {
const output = this.newDomain(domain);
this.history.push(output);
resolve(output);
return;
}
}
this.error = "Could not generate a valid domain";
reject(new Error(this.error));
})
.catch(reject);
});
}
ignoreTlds(...tlds: string[]): void {
this.ignoredTldList.push(...tlds);
}
newDomain(domain: string): Domain {
return {
name: domain,
tld: domain.split(".").slice(1).join("."),
searching: false,
available: true,
};
}
ignoredTld(tld: string): boolean {
return this.ignoredTldList.some((ignoredTld: string) => tld.endsWith(ignoredTld));
}
allFromWord(word: string): Promise<Domain[]> {
const escapedWord = this.escapeWord(word.replace(/ /gm, "-"));
return new Promise((resolve, reject) => {
this.init()
.then(() => {
const domains = [];
for (const tld of shuffled(this.tldList.slice())) {
if (this.ignoredTld(tld)) {
continue;
}
const tldEscaped: string = tld.replace(".", "");
if (escapedWord.endsWith(tldEscaped) && escapedWord.length >= tldEscaped.length + 2) {
const domain = `${escapedWord.substring(0, escapedWord.length - tldEscaped.length)}.${tld}`;
if (!domain.includes("-.")) {
const output = this.newDomain(domain);
this.history.push(output);
domains.push(output);
}
}
}
if (domains.length) {
resolve(domains);
}
reject(new Error("Could not generate a valid domain"));
})
.catch(reject);
});
}
}