Automatically toggle native dark mode on sunset and sunrise on danbooru.donmai.us
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// ==UserScript==
// @name Danbooru theme toggle (sunrise API)
// @namespace Danbooru
// @version 1
// @description Automatically toggle native dark mode on sunset and sunrise on danbooru.donmai.us
// @author Dramorian, fredgido
// @match https://danbooru.donmai.us/*
// @run-at document-start
// @license MIT
// ==/UserScript==
// Define the URL for the API that provides sunrise and sunset times
const apiUrl = "https://api.sunrise-sunset.org/json?lat=&lng=&formatted=0";
// Fetch the sunrise and sunset times from the API
fetch(apiUrl)
.then(response => response.json())
.then(data => {
// Extract the sunrise and sunset times from the API response
const sunrise = new Date(data.results.sunrise).toLocaleTimeString([], {hour: '2-digit', minute:'2-digit', hour12: false});
const sunset = new Date(data.results.sunset).toLocaleTimeString([], {hour: '2-digit', minute:'2-digit', hour12: false});
// Get the current time in hh:mm format
const currentTime = new Date().toLocaleTimeString([], {hour: '2-digit', minute:'2-digit', hour12: false});
// Check if the current time is between sunset and sunrise
const isNightTime = (currentTime >= sunset || currentTime < sunrise);
// Update the theme based on the time
const currentThemeIsDark = Danbooru.CurrentUser.darkMode();
if((isNightTime && !currentThemeIsDark) || (!isNightTime && currentThemeIsDark) ){
Danbooru.CurrentUser.update({theme: isNightTime ? "dark" : "light"}).then(() => {
Danbooru.Utility.notice("Theme updated.");
window.location = window.location;
});
}
})
.catch(error => console.error(error));