Redirect curseforge.com mod pages to modrinth.com when possible
// ==UserScript==
// @name Modrinthify
// @namespace Violentmonkey Scripts
// @match *://*.curseforge.com/minecraft/mc-mods/*
// @grant none
// @version 1.0
// @author devBoi76
// @license MIT
// @description Redirect curseforge.com mod pages to modrinth.com when possible
// ==/UserScript==
/* jshint esversion: 6 */
function similarity(s1, s2) {
var longer = s1;
var shorter = s2;
if (s1.length < s2.length) {
longer = s2;
shorter = s1;
}
var longerLength = longer.length;
if (longerLength == 0) {
return 1.0;
}
return (longerLength - editDistance(longer, shorter)) / parseFloat(longerLength);
}
function editDistance(s1, s2) {
s1 = s1.toLowerCase();
s2 = s2.toLowerCase();
var costs = new Array();
for (var i = 0; i <= s1.length; i++) {
var lastValue = i;
for (var j = 0; j <= s2.length; j++) {
if (i == 0)
costs[j] = j;
else {
if (j > 0) {
var newValue = costs[j - 1];
if (s1.charAt(i - 1) != s2.charAt(j - 1))
newValue = Math.min(Math.min(newValue, lastValue),
costs[j]) + 1;
costs[j - 1] = lastValue;
lastValue = newValue;
}
}
}
if (i > 0)
costs[s2.length] = lastValue;
}
return costs[s2.length];
}
const svg = '<svg class="h-full absolute" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 777 141.73" aria-hidden="true" class="text-logo"><g><path d="M159.07,89.29A70.94,70.94,0,1,0,20,63.52H32A58.78,58.78,0,0,1,145.23,49.93l-11.66,3.12a46.54,46.54,0,0,0-29-26.52l-2.15,12.13a34.31,34.31,0,0,1,2.77,63.26l3.19,11.9a46.52,46.52,0,0,0,28.33-49l11.62-3.1A57.94,57.94,0,0,1,147.27,85Z" transform="translate(-19.79)" fill="var(--color-brand)" fill-rule="evenodd"></path><path transform="translate(-19.79)" fill="var(--color-brand)" d="M108.92,139.3A70.93,70.93,0,0,1,19.79,76h12a59.48,59.48,0,0,0,1.78,9.91,58.73,58.73,0,0,0,3.63,9.91l10.68-6.41a46.58,46.58,0,0,1,44.72-65L90.43,36.54A34.38,34.38,0,0,0,57.36,79.75C57.67,80.88,58,82,58.43,83l13.66-8.19L68,63.93l12.9-13.25,16.31-3.51L101.9,53l-7.52,7.61-6.55,2.06-4.69,4.82,2.3,6.38s4.64,4.94,4.65,4.94l6.57-1.74,4.67-5.13,10.2-3.24,3,6.84L104.05,88.43,86.41,94l-7.92-8.81L64.7,93.48a34.44,34.44,0,0,0,28.72,11.59L96.61,117A46.6,46.6,0,0,1,54.13,99.83l-10.64,6.38a58.81,58.81,0,0,0,99.6-9.77l11.8,4.29A70.77,70.77,0,0,1,108.92,139.3Z"></path></g></svg>'
const HTML = ` \
<div class="button" style="background-color: #30B27B" data-tooltip="Install with Modrinth">\
<figure class="icon icon-margin relative w-5 h-4" >\
${svg}
</figure> \
Get on Modrinth\
</div> \
`
const API_BASE = "https://api.modtrinth.com"
const REGEX = /[\(\[](forge|fabric)[\)\]]/gmi
const MOD_PAGE_HTML = `<a href="REDIRECT" target="_blank" class="box flex" style="overflow: hidden; height: max-content; margin-top: -1px;"><div>\
<img style="display:inline-block; height: 3rem" src="ICON_SOURCE">\
<div class="mx-2 font-bold" style="display: inline-block">MOD_NAME</div>\
<div style="display: inline-block">BUTTON_HTML</div></div></a>`
const SEARCH_PAGE_HTML = `<a href="REDIRECT" target="_blank" class="box flex" style="overflow: hidden"><div>\
<img style="display:inline-block; height: 3rem" src="ICON_SOURCE">\
<div class="mx-2 font-bold" style="display: inline-block">MOD_NAME</div>\
<div style="display: inline-block">BUTTON_HTML</div></div></a>`
const query = "head title"
const tab_title = document.querySelector(query).innerText
let mod_name = undefined
let mod_name_noloader = undefined
let page = undefined
if (tab_title.indexOf("- Mods") != -1) {
mod_name = tab_title.split("- Mods")[0].trim()
mod_name_noloader = mod_name.replace(REGEX, "")
page = "mods"
} else if (tab_title.indexOf("- Search") != -1) {
mod_name = tab_title.split("- Search")[0].trim()
mod_name_noloader = mod_name.replace(REGEX, "")
page = "search"
}
fetch(`https://api.modrinth.com/v2/search?limit=3&query=${mod_name_noloader}`, {method: "GET", mode: "cors"})
.then(response => response.json())
.then(resp => {
if (page == undefined) {
return
}
if (resp.hits.length == 0) {
return
}
let max_sim = 0
let max_hit = undefined
for (const hit of resp.hits) {
if (similarity(hit.title.trim(), mod_name) > max_sim) {
max_sim = similarity(hit.title.trim(), mod_name)
max_hit = hit
}
if (similarity(hit.title.trim(), mod_name_noloader) > max_sim) {
max_sim = similarity(hit.title.trim(), mod_name_noloader)
max_hit = hit
}
}
if (max_sim <= 0.8) {
return
}
let query = ""
if (page == "mods") {
query = "div.-mx-1:nth-child(1)"
let s = document.querySelector(query)
s.innerHTML += MOD_PAGE_HTML
.replace("ICON_SOURCE", max_hit.icon_url)
.replace("MOD_NAME", max_hit.title.trim())
.replace("REDIRECT", `https://modrinth.com/mod/${max_hit.slug}`)
.replace("BUTTON_HTML", HTML)
} else if (page == "search") {
query = ".mt-6 > div:nth-child(3)"
let s = document.querySelector(query)
s.innerHTML += SEARCH_PAGE_HTML
.replace("ICON_SOURCE", max_hit.icon_url)
.replace("MOD_NAME", max_hit.title.trim())
.replace("REDIRECT", `https://modrinth.com/mod/${max_hit.slug}`)
.replace("BUTTON_HTML", HTML)
}
})