Stirling-PDF/src/main/resources/static/js/darkmode.js

var toggleCount = 0;
var lastToggleTime = Date.now();

var elements = {
	lightModeStyles: null,
	darkModeStyles: null,
	rainbowModeStyles: null,
	darkModeIcon: null
};

function getElements() {
	elements.lightModeStyles = document.getElementById("light-mode-styles");
	elements.darkModeStyles = document.getElementById("dark-mode-styles");
	elements.rainbowModeStyles = document.getElementById("rainbow-mode-styles");
	elements.darkModeIcon = document.getElementById("dark-mode-icon");
}

function setMode(mode) {
	elements.lightModeStyles.disabled = mode !== "off";
	elements.darkModeStyles.disabled = mode !== "on";
	elements.rainbowModeStyles.disabled = mode !== "rainbow";
	
	if (mode === "on") {
        elements.darkModeIcon.src = "moon.svg";
        // Add the table-dark class to tables for dark mode
        var tables = document.querySelectorAll('.table');
        tables.forEach(table => {
            table.classList.add('table-dark');
        });
    } else if (mode === "off") {
        elements.darkModeIcon.src = "sun.svg";
        // Remove the table-dark class for light mode
        var tables = document.querySelectorAll('.table-dark');
        tables.forEach(table => {
            table.classList.remove('table-dark');
        });
    } else if (mode === "rainbow") {
		elements.darkModeIcon.src = "rainbow.svg";
	}
}

function toggleDarkMode() {
	var currentTime = Date.now();
	if (currentTime - lastToggleTime < 1000) {
		toggleCount++;
	} else {
		toggleCount = 1;
	}
	lastToggleTime = currentTime;

	if (toggleCount >= 18) {
		localStorage.setItem("dark-mode", "rainbow");
		setMode("rainbow");
	} else if (localStorage.getItem("dark-mode") == "on") {
		localStorage.setItem("dark-mode", "off");
		setMode("off");
	} else {
		localStorage.setItem("dark-mode", "on");
		setMode("on");
	}
}

document.addEventListener("DOMContentLoaded", function() {
	getElements();

	var currentMode = localStorage.getItem("dark-mode");
	if (currentMode === "on" || currentMode === "off" || currentMode === "rainbow") {
		setMode(currentMode);
	} else if (window.matchMedia && window.matchMedia("(prefers-color-scheme: dark)").matches) {
		setMode("on");
	} else {
		setMode("off");
	}

	document.getElementById("dark-mode-toggle").addEventListener("click", function(event) {
		event.preventDefault();
		toggleDarkMode();
	});
});