// ==UserScript==
// @name         Direct Image Uploader
// @namespace    https://greasyfork.org/users/321857-anakunda
// @version      1.03
// @description  Directly upload local / rehost remote image(s) to whatever dedicated image host by dropping/pasting them to target field
// @author       Anakunda
// @match        https://passthepopcorn.me/*
// @match        https://*/torrents.php?id=*
// @match        https://*/artist.php?id=*
// @match        https://*/artist.php?action=edit&artistid=*
// @match        https://*/reportsv2.php?action=report&id=*
// @match        https://*/forums.php?action=new*
// @match        https://*/forums.php?*action=viewthread*
// @match        https://*/requests.php?action=view*
// @match        https://*/collages.php?id=*
// @match        https://*/collages.php?action=edit&collageid=*
// @match        https://*/collages.php?action=comments&collageid=*
// @match        https://*/collages.php?action=new
// @match        http*://tracker.czech-server.com/upload2.php
// @match        http*://tracker.czech-server.com/edit.php*
// @connect      *
// @grant        GM_xmlhttpRequest
// @grant        GM_getValue
// @grant        GM_setValue
// @grant        GM_deleteValue
// @require      https://greasyfork.org/scripts/401725-xhrlib/code/xhrLib.js
// @require      https://greasyfork.org/scripts/394414-ua-resource/code/UA-resource.js
// @require      https://greasyfork.org/scripts/401726-imagehostuploader/code/imageHostUploader.js
// @downloadURL none
// ==/UserScript==

'use strict';

const itunesRlsParser = /^https?:\/\/(?:\w+\.)*apple\.com\/.*\/(\d+)(?=$|\?)/i;

document.querySelectorAll('input#image').forEach(setInputHandlers);
document.querySelectorAll('input[name="image"]').forEach(setInputHandlers);
Array.from(document.getElementsByTagName('textarea')).forEach(setTextAreahandlers);
if (document.URL.includes('/torrents.php?id=')) {
  let a = document.querySelector('span.additional_add_artists > a');
  if (a != null) a.addEventListener('click', function() {
	document.querySelectorAll('input[name="image[]"]').forEach(setInputHandlers);
  });
}
if (document.domain == 'tracker.czech-server.com') document.querySelectorAll('input[name="urlobr"]').forEach(setInputHandlers);
if (document.URL.includes('/reportsv2.php')) {
  setReportHandlers();
  var reportTypeSelect = document.querySelector('select#type');
  if (reportTypeSelect != null) reportTypeSelect.addEventListener('change', setReportHandlers);
}

function setReportHandlers() {
  setTimeout(function() {
	['input#proofimages', 'input#image'].forEach(selector => { document.querySelectorAll(selector).forEach(setInputHandlers) });
	document.querySelectorAll('textarea#extra').forEach(setTextAreahandlers);
  }, 2000);
}

function coverPreview(input, imgUrl, size) {
  var div, child = document.getElementById('cover-preview');
  if (child == null) {
	return;
// 	if (!(input instanceof HTMLElement) || input.parentNode.previousElementSibling == null) return;
// 	var elem = document.createElement('div');
// 	elem.style = 'padding-top: 10px; float: right; width: 90%;';
// 	child = document.createElement('img');
// 	child.id = 'cover-preview';
// 	elem.append(child);
// 	var div = document.createElement('div');
// 	div.id = 'cover-size';
// 	elem.append(div);
// 	input.parentNode.previousElementSibling.append(document.createElement('br'));
// 	input.parentNode.previousElementSibling.append(elem);
  }
  if ((div = div || document.getElementById('cover-size')) == null) return;
  if (urlParser.test(imgUrl)) {
	child.onload = function(evt) {
	  this.onload = null;
	  if (!this.naturalWidth || !this.naturalHeight) return; // invalid image
	  (size > 0 ? Promise.resolve(size) : getRemoteFileSize(imgUrl)).then(function(size) {
		div.textContent = this.naturalWidth + '×' + this.naturalHeight + ' (' + formattedSize(size) + ')';
	  }.bind(this)).catch(reason => { div.textContent = this.naturalWidth + '×' + this.naturalHeight });
	};
	child.onerror = function(evt) {
	  this.onerror = null;
	  div.textContent = this.src = '';
	  console.warn('Image source cannot be updated:', evt, imgUrl);
	};
	child.src = imgUrl;
  } else div.textContent = child.src = '';
}

function imageDataHandler(evt, data) {
  if (!data) return true;
  if (data.files.length > 0) {
	if (!data.files[0].type.toLowerCase().startsWith('image/')) return true;
	evt.target.disabled = true;
	if (evt.target.hTimer) {
	  clearTimeout(evt.target.hTimer);
	  delete evt.target.hTimer;
	}
	evt.target.style.backgroundColor = '#800000';
	let elem = evt.target, file = data.files[0], size = data.files[0].size;
	uploadImages([file], evt.target).then(function(urls) {
	  elem.value = urls[0];
	  elem.style.backgroundColor = '#008000';
	  elem.style.color = 'white';
	  elem.hTimer = setTimeout(function() {
		elem.style.backgroundColor = null;
		elem.style.color = null;
		delete elem.hTimer;
	  }, 10000);
	  coverPreview(elem, urls[0], size);
	}).catch(function(error) {
	  elem.style.backgroundColor = null;
	  imageClear(evt);
	  alert(error);
	}).then(function() { elem.disabled = false });
	return false;
  } else if (data.items.length > 0) {
	verifyImageUrl((data.getData('text/uri-list') || data.getData('text/plain')).split(/\r?\n/)[0], true).then(function(imageUrl) {
	  evt.target.value = imageUrl;
	  coverPreview(evt.target, imageUrl);
	  if (imageUrl.toLowerCase().startsWith(ptpimgOrigin)) return;
	  evt.target.disabled = true;
	  rehostImages([imageUrl])
		.then(urls => { if (urls.length > 0 && urls[0] != evt.target.value) evt.target.value = urls[0] })
		.catch(e => { alert(e + ' (not rehosted)') })
		.then(function() { evt.target.disabled = false });
	}).catch(function(e) {
	  console.error(e);
	  alert(e);
	});
	return false;
  }
  return true;
}

function descDropHandler(evt) {
  if (evt.dataTransfer == null || evt.shiftKey) return true;
  if (evt.dataTransfer.files.length > 0) {
	let images = [];
	Array.from(evt.dataTransfer.files).forEach(function(file) {
	  switch (file.type) {
		case 'image/png':
		case 'image/jpeg':
		case 'image/gif':
		case 'image/bmp':
		//case 'image/webp':
		//case 'image/svg+xml':
		  images.push(file);
		  break;
	  }
	});
	if (images.length > 0) {
	  evt.target.disabled = true;
	  evt.target.style.background = '#FF000040 no-repeat center center url(' + ulImgData +')';
	  //evt.target.style.background = '#FF000040 no-repeat center center url(https://svgshare.com/i/H16.svg)';
	  let elem = evt.target;
	  uploadImages(images).then(urlHandler.bind({ tag: 'img' })).catch(error => { alert(error) }).then(function() {
		elem.style.background = null;
		elem.disabled = false;
	  });
	}
	return false;
  } else if (evt.dataTransfer.items.length > 0) {
	let content = evt.dataTransfer.getData('text/uri-list');
	if (content) verifyImageUrls(content.split(/\r?\n/), true).then(function(imageUrls) {
	  //if (auto_rehost_cover) {
	  evt.target.disabled = true;
	  rehostImages(imageUrls)
		.then(urlHandler.bind({ tag: 'img' }))
		.catch(e => { alert(e + ' (not rehosted)') })
		.then(function() { evt.target.disabled = false });
	  //} else urlHandler.bind({ tag: 'img' })(content);
	});
	return false;
  }
  return true;

  function urlHandler(urls) {
	const rx = new RegExp('\\[' + this.tag + '\\]\\[\\/' + this.tag + '\\]', 'i');
	urls.forEach(function(url, ndx) {
	  if (url.length <= 0 || !urlParser.test(urls)) return;
	  var php = '[' + this.tag;
	  php += Array.isArray(this.titles) && this.titles[ndx] ? '=' + url + ']' + this.titles[ndx] : ']' + url;
	  php += '[/' + this.tag + ']';
	  if (evt.target.value.length <= 0) evt.target.value = php; else if (evt.ctrlKey) {
		evt.target.value = evt.target.value.slice(0, evt.rangeOffset) + php + evt.target.value.slice(evt.rangeOffset);
	  } else if (rx.test(evt.target.value)) {
		evt.target.value = RegExp.leftContext + php + RegExp.rightContext;
	  } else evt.target.value += '\n\n'.concat(php);
	}.bind(this));
  }
  function textHandler(php) {
	if (evt.target.value.length <= 0) evt.target.value = php; else if (evt.ctrlKey) {
	  evt.target.value = evt.target.value.slice(0, evt.rangeOffset) + php + evt.target.value.slice(evt.rangeOffset);
	} else evt.target.value += '\n\n'.concat(php);
  }
}

function imageUrlResolver(url) {
  return urlResolver(url).then(url => verifyImageUrl(url).catch(function(reason) {
	try { url = new URL(url) } catch(e) { return Promise.reject(e) }
	if (url.hostname.endsWith('bandcamp.com')) return globalFetch(url)
	  .then(response => verifyImageUrl(response.document.querySelector('div#tralbumArt > a.popupImage').href));
	else if (url.hostname.endsWith('.7digital.com')) return globalFetch(url)
	  .then(response => verifyImageUrl(response.document.querySelector('span.release-packshot-image > img[itemprop="image"]').src));
	else if (url.hostname.startsWith('hdtracks.') || url.hostname.startsWith('www.hdtracks.')) return globalFetch(url)
	  .then(response => verifyImageUrl(response.document.querySelector('p.product-image > img').src));
	else switch (url.hostname) {
	  case 'imgur.com':
		return globalFetch(url).then(response => verifyImageUrl(response.document.querySelector('link[rel="image_src"]').href));
	  case 'jerking.empornium.ph':
		if (!url.pathname.startsWith('/image/')) break;
		return globalFetch(url)
		  .then(response => verifyImageUrl(response.document.querySelector('meta[property="og:image"]').content));
	  case 'malzo.com':
		if (!url.pathname.startsWith('/im/')) break;
	  case 'postimg.cc':
		return globalFetch(url)
		  .then(response => verifyImageUrl(response.document.querySelector('meta[property="og:image"]').content));
	  case 'pixhost.to':
		if (!url.pathname.startsWith('/show/')) break;
		return globalFetch(url).then(response => verifyImageUrl(response.document.querySelector('img#image').src));
	  case 'imgbb.com': case 'ibb.co':
		return globalFetch(url)
		  .then(response => verifyImageUrl(response.document.querySelector('div#image-viewer-container img').src));
	  case 'www.imagevenue.com':
		return globalFetch(url, { headers: { Referer: 'http://www.imagevenue.com/' } })
		  .then(response => verifyImageUrl((response.document.querySelector('div.card img')
			|| response.document.querySelector('img#thepic')).src));
	  case 'www.imagebam.com':
		if (!url.pathname.startsWith('/image//')) break;
		return globalFetch(url, { headers: { Referer: 'http://www.imagebam.com/' } })
		  .then(response => verifyImageUrl(response.document.querySelector('meta[property="og:image"]').content));
	  case 'redacted.ch':
		if (url.pathname != '/image.php') break;
		return globalFetch(url, { method: 'HEAD' }).then(response => verifyImageUrl(response.finalUrl));
	  case 'demo.cloudimg.io':
		if (!/\b(https?:\/\/\S+)$/.test(url.pathname.concat(url.search, url.hash))) break;
		var resolved = RegExp.$1;
		if (/\b(?:https?):\/\/(?:\w+\.)*discogs\.com\//i.test(resolved)) break;
		return imageResolver(resolved);
	  case 'fastpic.ru':
		if (url.pathname.startsWith('/view/'))
		  return globalFetch(url).then(response => imageUrlResolver(response.document.querySelector('a.img-a').href));
		if (url.pathname.startsWith('/fullview/'))
		  return globalFetch(url).then(response => verifyImageUrl(response.document.getElementById('image').src));
		break;
	  case 'radikal.ru': case 'a.radikal.ru':
		return globalFetch(url).then(response => verifyImageUrl(response.document.querySelector('div.mainBlock img').src));
	  case 'imageban.ru': case 'ibn.im':
		return globalFetch(url)
		  .then(response => verifyImageUrl(response.document.getElementById('img_main').src /* dataset.original */));
	  case 'www.musicbrainz.org': case 'musicbrainz.org':
		if (!['release', 'release-group'].some(branch => url.pathname.includes('/'.concat(branch, '/')))) break;
		return globalFetch(url).then(function(response) {
		  var node = response.document.querySelector('a.artwork-image');
		  if (node != null) return verifyImageUrl(node.href);
		  return (node = response.document.querySelector('div.cover-art > img')) != null ?
			verifyImageUrl(node.src) : Promise.reject('Cover missing');
		});
	  case 'music.apple.com':
		if (!itunesRlsParser.test(url)) break;
		return globalFetch(url).then(function(response) {
		  var meta = response.document.querySelector('meta[property="og:image"][content]');
		  if (meta == null || !meta.content) return Promise.reject('Cover missing');
		  return verifyImageUrl(meta.content.replace(/\/\d+x\d+\w*(?=\.\w+$)/, '/100000x100000-999'))
		  	.catch(reason => verifyImageUrl(meta.content));
		});
	  case 'www.deezer.com': case 'deezer.com':
		return globalFetch(url).then(function(response) {
		  var meta = response.document.querySelector('meta[property="og:image"][content]');
		  if (meta == null || !meta.content) return Promise.reject('Cover missing');
		  return verifyImageUrl(meta.content.replace(/\/\d+x\d+\w*(?=\.\w+$)/, '/1400x1400-000000-100-0-0'))
			.catch(reason => verifyImageUrl(meta.content));
		});
	  case 'www.qobuz.com': case 'qobuz.com':
		if (!url.pathname.includes('/album/')) break;
		return globalFetch(url).then(function(response) {
		  var img = response.document.querySelector('div.album-cover > img');
		  if (img == null) return Promise.reject('Cover missing');
		  return verifyImageUrl(img.src.replace(/_\d{3}(?=\.\w+$)/, '_max')).catch(reason => verifyImageUrl(img.src));
		});
	  case 'www.prestomusic.com': case 'prestomusic.com':
		if (!url.pathname.includes('/products/')) break;
		return globalFetch(url)
		  .then(response => verifyImageUrl(response.document.querySelector('div.c-product-block__aside > a').href.replace(/\?\d+$/)));
	  case 'www.bontonland.cz':case 'bontonland.cz':
		return globalFetch(url)
		  .then(response => verifyImageUrl(response.document.querySelector('a.detailzoom').href));
	  case 'www.nativedsd.com':case 'nativedsd.com':
		if (!url.pathname.includes('/albums/')) break;
		return globalFetch(url)
		  .then(response => verifyImageUrl(response.document.querySelector('a#album-cover').href));
	  case 'www.prostudiomasters.com': case 'prostudiomasters.com':
		if (!url.pathname.includes('/album/')) break;
		return globalFetch(url).then(function(response) {
		  var a = response.document.querySelector('img.album-art');
		  return verifyImageUrl(a.currentSrc || a.src);
		});
	  case 'www.e-onkyo.com': case 'e-onkyo.com':
		if (!url.pathname.includes('/album/')) break;
		return globalFetch(url).then(function(response) {
		  var a = response.document.querySelector('figure > a.colorbox');
		  return verifyImageUrl(new URL(response.finalUrl).origin.concat(a.pathname));
		})
	  case 'store.acousticsounds.com':
		return globalFetch(url).then(function(response) {
		  var link = response.document.querySelector('div#detail > link[rel="image_src"]');
		  return verifyImageUrl(link.href.replace(/\/medium\//i, '/large/'))
		  	.catch(reason => verifyImageUrl(link.href));
		});
	  case 'www.indies.eu': case 'indies.eu':
		if (!url.pathname.includes('/alba/')) break;
		return globalFetch(url)
		  .then(response => verifyImageUrl(response.document.querySelector('div.obrazekDetail > img').src));
	  case 'www.beatport.com': case 'beatport.com':
		if (!url.pathname.includes('/release/')) break;
		return globalFetch(url)
		  .then(response => verifyImageUrl(response.document.querySelector('div > img.interior-release-chart-artwork').src));
	  case 'www.supraphonline.cz': case 'supraphonline.cz':
		if (!url.pathname.includes('/album/')) break;
		return globalFetch(url)
		  .then(response => verifyImageUrl(response.document.querySelector('meta[itemprop="image"]').content.replace(/\?.*$/, '')));
	  case 'vgmdb.net':
		if (!url.pathname.includes('/album/')) break;
		return globalFetch(url).then(function(response) {
		  var div = response.document.querySelector('div#coverart');
		  return /\b(?:url)\s*\(\"(.*)"\)/i.test(div.style['background-image']) ?
			verifyImageUrl(RegExp.$1) : Promise.reject('Cover missing');
		});
	  case 'www.ototoy.jp': case 'ototoy.jp':
		return globalFetch(url).then(function(response) {
		  var img = response.document.querySelector('div#tralbumArt > a.popupImage');
		  return verifyImageUrl(img.dataset.src || img.src);
		});
	  case 'music.yandex.ru':
		if (!url.pathname.includes('/album/')) break;
		return globalFetch(url).then(function(response) {
		  var script = response.document.querySelector('script.light-data');
		  if (script == null) return Promise.reject('Invalid page structure');
		  return verifyImageUrl(JSON.parse(script.text).image);
		});
	  case 'www.imdb.com': case 'imdb.com':
		if (!url.pathname.startsWith('/title/tt')) break;
		return globalFetch(url).then(function(response) {
		  var script = response.document.head.querySelector(':scope > script[type="application/ld+json"]');
		  if (script == null) return Promise.reject('Invalid page structure');
		  return verifyImageUrl(JSON.parse(script.text).image);
		});
	  case 'www.csfd.cz': case 'csfd.cz':
		//if (!url.pathname.includes('/film/')) break;
		return globalFetch(url).then(function(response) {
		  var img = response.document.querySelector('img.film-poster');
		  return img != null ? verifyImageUrl(img.src.replace(/\?.*$/, '')) : Promise.reject('Invalid page structure');
		});
	  case 'www.fdb.cz': case 'fdb.cz':
		//if (!url.pathname.startsWith('/film/')) break;
		return globalFetch(url).then(function(response) {
		  var a = response.document.querySelector('a.boxPlakaty');
		  if (a == null) return Promise.reject('Invalid page structure');
		  a.hostname = 'www.fdb.cz';
		  return globalFetch(a.href).then(function(response) {
			var imgs = response.document.querySelectorAll('span#popup_plakaty > img');
			return imgs.length > 0 ? imgs[0].src : Promise.reject('Cover missing');
		  });
		});
	  case 'discogs.com': case 'www.discogs.com':
		if (!['release', 'master', 'artist'].some(branch => url.pathname.includes('/'.concat(branch, '/')))) break;
	  default:
		return globalFetch(url, { headers: { 'Referer': url.origin } }).then(function(response) {
		  var meta = response.document.querySelector('meta[property="og:image"][content]')
		  	|| response.document.querySelector('meta[itemprop="image"][content]')
			|| response.document.querySelector('meta[name="og:image"][content]');
		  return meta != null && meta.content ? verifyImageUrl(meta.content)
		  	: Promise.reject('This URL cannot be resolved to direct image link:\n\n' + url);
		});
	}
	return Promise.reject('This URL cannot be resolved to direct image link:\n\n' + url);
  }));
}