// ==UserScript==

// @name         Heyuri Yeah Highlighter

// @namespace    heyuri-yeah-highlight

// @version      1.0

// @description  Highlights reply posts based on Yeah count (like a Futaba★Channel userscript)

// @author       Heyuri Applicable Research & Development

// @match        https://img.heyuri.net/*

// @grant        none

// ==/UserScript==


(function () {
	"use strict";

	function applyHighlighting() {
		document.querySelectorAll(".post.reply").forEach(post => {
			post.removeAttribute("style");

			const sod = post.querySelector(".sod");
			if (!sod) return;

			const match = sod.textContent.match(/\d+/);
			if (!match) return;

			const count = parseInt(match[0], 10);

			const blue = Math.round(10 * count + 180);
			const color = "rgb(180, 240, " + blue + ")";

			post.style.backgroundColor = color;
		});
	}

	const observer = new MutationObserver(() => {
		applyHighlighting();
	});

	observer.observe(document.body, {
		childList: true,
		subtree: true,
		characterData: true
	});

	applyHighlighting();

})();