derpi_only_show_upvotes

25/06/2023 Replaces images' score with only upvotes, instead of the usual combined upvotes+downvotes. Also hides downvotes. Fetches the scores via individual API calls to https://derpibooru.org/api/v1/json/images/imageNumber

Verze ze dne 25. 06. 2023. Zobrazit nejnovější verzi.

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==UserScript==
// @name       derpi_only_show_upvotes
// @namespace   Violentmonkey Scripts
// @match       https://derpibooru.org/*
// @grant       none
// @version     1.0
// @license MIT
// @author      Saphkey
// @description 25/06/2023 Replaces images' score with only upvotes, instead of the usual combined upvotes+downvotes. Also hides downvotes. Fetches the scores via individual API calls to https://derpibooru.org/api/v1/json/images/imageNumber
// ==/UserScript==


(function() {
	function gatherImageIds() {
		let images = document.getElementsByClassName('score');
		let imageIds = [];
		for (let i = 0; i < images.length; i++) {
			imageIds.push(images[i].getAttribute('data-image-id'));
		}
		return imageIds;
	}

	function hideScores(){
		let scoreEls = document.getElementsByClassName('score');
		for (let i = 0; i < scoreEls.length; i++) {
			scoreEls[i].innerHTML = '?';
		}
	}

	function hideDownvotes() {
		let downvoteEls = document.getElementsByClassName('downvotes');
		for (let i = 0; i < downvoteEls.length; i++) {
			downvoteEls[i].innerHTML = '?';
		}
	}

	async function getUpvotesThenCallDisplayUpvotes(imageIds, maxParalelRequests) {
		let requestQ = [];
		let imageUpvotesObj = {};

		async function processRequest(res) {try{
			res = await res.json();
			imageUpvotesObj[res.image.id] = res.image.upvotes;
			console.log(`imageID: ${res.image.id} upvotes: ${res.image.upvotes}`)

			//if (Object.keys(imageUpvotesObj).length === imageIds.length){
			//	displayAllUpvotes(imageUpvotesObj);
			//}
			displaySingleUpvote(res.image.upvotes, res.image.id);
		}catch(err){
			console.log(err);
		}}

		for (let i = 0; i < imageIds.length; i++) {

			if (requestQ.length >= maxParalelRequests) {

				let nextRequest = requestQ.shift()

				await nextRequest.then((response) => {
					processRequest(response);
				})

			}

			requestQ.push(fetch(`https://derpibooru.org/api/v1/json/images/${imageIds[i]}`))
		}

		let nextRequest = requestQ[0];
		while(nextRequest = requestQ.shift()) {

			await nextRequest.then((response) => {
				processRequest(response);
			})
		}
	}


	function displayAllUpvotes(upvotesObj) {
		let scoreEls = document.getElementsByClassName('score');

		for (let i = 0; i < scoreEls.length; i++) {
			let scoreEl = scoreEls[i];
			let imageId = scoreEl.getAttribute('data-image-id');
			let upvotes = upvotesObj[imageId];
			if (upvotes !== undefined) {
				scoreEl.innerText = upvotes;
			}
			else {
				scoreEl.innerText = '?';
			}
		}
	}


	function displaySingleUpvote(upvotes, imageId) {
		let scoreEls = document.getElementsByClassName('score');

		for (let i = 0; i < scoreEls.length; i++) {
			let scoreEl = scoreEls.item(i);

			if (scoreEl.getAttribute(`data-image-id`) == imageId){
				scoreEl.innerHTML = upvotes;
			}
		}
	}


	window.onload = async function() {
		hideScores();
		hideDownvotes();

		let imageIds = gatherImageIds();
		await getUpvotesThenCallDisplayUpvotes(imageIds, 8);
	}
})();