// 初始化函数
let rm = {};

//禁止图片拖拽
rm.stopdragimg = $("img");
rm.stopdragimg.on("dragstart", function() {
	return false;
});

// 显示菜单
rm.showRightMenu = function(isTrue, x = 0, y = 0) {
	let $rightMenu = $('#rightMenu');
	$rightMenu.css('top', x + 'px').css('left', y + 'px');
	if (isTrue) {
		$rightMenu.show();
		stopMaskScroll()
	} else {
		$rightMenu.hide();
	}
}

// 隐藏菜单
rm.hideRightMenu = function() {
	rm.showRightMenu(false);
	$('#rightmenu-mask').attr('style', 'display: none');
}

// 尺寸
let rmWidth = $('#rightMenu').width();
let rmHeight = $('#rightMenu').height();

// 重新定义尺寸
rm.reloadrmSize = function() {
	rmWidth = $('#rightMenu').width();
	rmHeight = $('#rightMenu').height();
}

// 获取点击的href
let domhref = '';
let domImgSrc = '';
let globalEvent = null;

// 监听右键初始化
window.oncontextmenu = function(event) {
	if (document.body.clientWidth > 768) {
		let pageX = event.clientX + 10; //加10是为了防止显示时鼠标遮在菜单上
		let pageY = event.clientY;
		// console.log(event);

		//其他额外菜单
		let $rightMenuOther = $('.rightMenuOther');
		let $rightMenuPlugin = $('.rightMenuPlugin');
		let $rightMenuCopyText = $('#menu-copytext');
		let $rightMenuPasteText = $('#menu-pastetext');
		let $rightMenuCommentText = $('#menu-commenttext');
		let $rightMenuNewWindow = $('#menu-newwindow');
		let $rightMenuNewWindowImg = $('#menu-newwindowimg');
		let $rightMenuCopyLink = $('#menu-copylink');
		let $rightMenuCopyImg = $('#menu-copyimg');
		let $rightMenuDownloadImg = $('#menu-downloadimg');
		let $rightMenuSearch = $('#menu-search');
		let $rightMenuSearchBaidu = $('#menu-searchBaidu');
		let $rightMenuMusicToggle = $('#menu-music-toggle');
		let $rightMenuMusicBack = $('#menu-music-back');
		let $rightMenuMusicForward = $('#menu-music-forward');
		let $rightMenuMusicPlaylist = $('#menu-music-playlist');
		let $rightMenuMusicCopyMusicName = $('#menu-music-copyMusicName');
		let href = event.target.href;
		let imgsrc = event.target.currentSrc;

		// 判断模式 扩展模式为有事件
		let pluginMode = false;
		$rightMenuOther.show();
		globalEvent = event;

		// 检查是否需要复制 是否有选中文本
		if (selectTextNow && window.getSelection()) {
			pluginMode = true;
			$rightMenuCopyText.show();
			$rightMenuCommentText.show();
			$rightMenuSearch.show();
			$rightMenuSearchBaidu.show();
		} else {
			$rightMenuCopyText.hide();
			$rightMenuCommentText.hide();
			$rightMenuSearchBaidu.hide();
			$rightMenuSearch.hide();
		}

		//检查是否右键点击了链接a标签
		if (href) {
			pluginMode = true;
			$rightMenuNewWindow.show();
			$rightMenuCopyLink.show();
			domhref = href;
		} else {
			$rightMenuNewWindow.hide();
			$rightMenuCopyLink.hide();
		}

		//检查是否需要复制图片
		if (imgsrc) {
			pluginMode = true;
			$rightMenuCopyImg.show();
			$rightMenuDownloadImg.show();
			$rightMenuNewWindowImg.show();
			domImgSrc = imgsrc;
		} else {
			$rightMenuCopyImg.hide();
			$rightMenuDownloadImg.hide();
			$rightMenuNewWindowImg.hide();
		}

		// 判断是否为输入框
		if (event.target.tagName.toLowerCase() === 'input' || event.target.tagName.toLowerCase() === 'textarea') {
			console.log('这是一个输入框')
			pluginMode = true;
			$rightMenuPasteText.show();
		} else {
			$rightMenuPasteText.hide();
		}

		//判断是否是音乐
		const navMusicEl = document.querySelector("#nav-music");
		if (navMusicEl && navMusicEl.contains(event.target)) {
			pluginMode = true;
			$rightMenuMusicToggle.show();
			$rightMenuMusicBack.show();
			$rightMenuMusicForward.show();
			$rightMenuMusicPlaylist.show();
			$rightMenuMusicCopyMusicName.show();
		} else {
			$rightMenuMusicToggle.hide();
			$rightMenuMusicBack.hide();
			$rightMenuMusicForward.hide();
			$rightMenuMusicPlaylist.hide();
			$rightMenuMusicCopyMusicName.hide()
		}

		// 如果不是扩展模式则隐藏扩展模块
		if (pluginMode) {
			$rightMenuOther.hide();
			$rightMenuPlugin.show();
		} else {
			$rightMenuPlugin.hide()
		}

		rm.reloadrmSize()

		// 鼠标默认显示在鼠标右下方，当鼠标靠右或考下时，将菜单显示在鼠标左方\上方
		if (pageX + rmWidth > window.innerWidth) {
			pageX -= rmWidth + 10;
		}
		if (pageY + rmHeight > window.innerHeight) {
			pageY -= pageY + rmHeight - window.innerHeight;
		}

		rm.showRightMenu(true, pageY, pageX);
		$('#rightmenu-mask').attr('style', 'display: flex');
		return false;
	}
};

// 下载图片状态
rm.downloadimging = false;

// 复制图片到剪贴板
rm.writeClipImg = function(imgsrc) {
	console.log('按下复制');
	rm.hideRightMenu();
	btf.snackbarShow('正在下载中，请稍后', false, 10000)
	if (rm.downloadimging == false) {
		rm.downloadimging = true;
		setTimeout(function() {
			copyImage(imgsrc);
			btf.snackbarShow('复制成功！图片已添加盲水印，请遵守版权协议');
			rm.downloadimging = false;
		}, "10000")
	}
}

function imageToBlob(imageURL) {
	const img = new Image;
	const c = document.createElement("canvas");
	const ctx = c.getContext("2d");
	img.crossOrigin = "";
	img.src = imageURL;
	return new Promise(resolve => {
		img.onload = function() {
			c.width = this.naturalWidth;
			c.height = this.naturalHeight;
			ctx.drawImage(this, 0, 0);
			c.toBlob((blob) => {
				// here the image is a blob
				resolve(blob)
			}, "image/png", 0.75);
		};
	})
}

async function copyImage(imageURL) {
	const blob = await imageToBlob(imageURL)
	const item = new ClipboardItem({
		"image/png": blob
	});
	navigator.clipboard.write([item]);
}

rm.switchDarkMode = function() {
	navFn.switchDarkMode();
	rm.hideRightMenu();

	//halo.darkComment();
}

rm.copyUrl = function(id) {
	$("body").after("<input id='copyVal'></input>");
	var text = id;
	var input = document.getElementById("copyVal");
	input.value = text;
	input.select();
	input.setSelectionRange(0, input.value.length);
	document.execCommand("copy");
	$("#copyVal").remove();
}

function stopMaskScroll() {
	if (document.getElementById("rightmenu-mask")) {
		let xscroll = document.getElementById("rightmenu-mask");
		xscroll.addEventListener("mousewheel", function(e) {
			//阻止浏览器默认方法
			rm.hideRightMenu();
			// e.preventDefault();
		}, false);
	}
	if (document.getElementById("rightMenu")) {
		let xscroll = document.getElementById("rightMenu");
		xscroll.addEventListener("mousewheel", function(e) {
			//阻止浏览器默认方法
			rm.hideRightMenu();
			// e.preventDefault();
		}, false);
	}
}

rm.rightmenuCopyText = function(txt) {
	if (navigator.clipboard) {
		navigator.clipboard.writeText(txt);
	}
	rm.hideRightMenu();
}

rm.copyPageUrl = function() {
	var url = window.location.href;
	rm.copyUrl(url);
	btf.snackbarShow('复制本页链接地址成功', false, 2000);
	rm.hideRightMenu();
}

rm.sharePage = function() {
	var content = window.location.href;
	rm.copyUrl(url);
	btf.snackbarShow('复制本页链接地址成功', false, 2000);
	rm.hideRightMenu();
}

// 复制当前选中文本
var selectTextNow = '';
document.onmouseup = document.ondbclick = selceText;

function selceText() {
	var txt;
	if (document.selection) {
		txt = document.selection.createRange().text;
	} else {
		txt = window.getSelection() + '';
	}
	if (txt) {
		selectTextNow = txt;
		// console.log(selectTextNow);
	} else {
		selectTextNow = '';
	}
}

// 读取剪切板
rm.readClipboard = function() {
	if (navigator.clipboard) {
		navigator.clipboard.readText().then(clipText => rm.insertAtCaret(globalEvent.target, clipText));
	}
}

// 粘贴文本到焦点
rm.insertAtCaret = function(elemt, value) {
	const startPos = elemt.selectionStart,
		endPos = elemt.selectionEnd;
	if (document.selection) {
		elemt.focus();
		var sel = document.selection.createRange();
		sel.text = value;
		elemt.focus();
	} else {
		if (startPos || startPos == '0') {
			var scrollTop = elemt.scrollTop;
			elemt.value = elemt.value.substring(0, startPos) + value + elemt.value.substring(endPos, elemt.value
				.length);
			elemt.focus();
			elemt.selectionStart = startPos + value.length;
			elemt.selectionEnd = startPos + value.length;
			elemt.scrollTop = scrollTop;
		} else {
			elemt.value += value;
			elemt.focus();
		}
	}
}

//粘贴文本
rm.pasteText = function() {
	const result = rm.readClipboard() || '';
	rm.hideRightMenu();
}

//引用到评论
rm.rightMenuCommentText = function(txt) {
	rm.hideRightMenu();
	var input = document.getElementsByClassName(GLOBAL_CONFIG.source.comments.textarea)[0];
	let evt = document.createEvent('HTMLEvents');
	evt.initEvent('input', true, true);
	let inputValue = replaceAll(txt, '\n', '\n> ')
	input.value = '> ' + inputValue + '\n\n';
	input.dispatchEvent(evt);
	var domTop = document.querySelector("#post-comment").offsetTop;
	window.scrollTo(0, domTop - 80);
	input.focus();
	input.setSelectionRange(-1, -1);
	if (document.getElementById("comment-tips")) {
		document.getElementById("comment-tips").classList.add("show");
	}
}

//替换所有内容
function replaceAll(string, search, replace) {
	return string.split(search).join(replace);
}

// 百度搜索
rm.searchBaidu = function() {
	btf.snackbarShow('即将跳转到百度搜索', false, 2000);
	setTimeout(function() {
		window.open('https://www.baidu.com/s?wd=' + selectTextNow);
	}, "2000");
	rm.hideRightMenu();
}

//分享链接
rm.copyLink = function() {
	rm.rightmenuCopyText(domhref);
	btf.snackbarShow('已复制链接地址');
}

function addRightMenuClickEvent() {
	// 添加点击事件
	$('#menu-backward').on('click', function() {
		window.history.back();
		rm.hideRightMenu();
	});
	$('#menu-forward').on('click', function() {
		window.history.forward();
		rm.hideRightMenu();
	});
	$('#menu-refresh').on('click', function() {
		window.location.reload();
	});
	$('#menu-top').on('click', function() {
		btf.scrollToDest(0, 500);
		rm.hideRightMenu();
	});
	$('.menu-link').on('click', rm.hideRightMenu);
	$('#menu-darkmode').on('click', rm.switchDarkMode);
	$('#menu-home').on('click', function() {
		window.location.href = window.location.origin;
	});
	$('#menu-randomPost').on('click', function() {
		toRandomPost()
	});
	$('#menu-commentBarrage').on('click', heo.switchCommentBarrage);
	$('#rightmenu-mask').on('click', rm.hideRightMenu);
	$('#rightmenu-mask').contextmenu(function() {
		rm.hideRightMenu();
		return false;
	});
	$('#menu-translate').on('click', function() {
		rm.hideRightMenu();
	});
	$('#menu-copy').on('click', rm.copyPageUrl);
	$('#menu-pastetext').on('click', rm.pasteText);
	$('#menu-copytext').on('click', function() {
		rm.rightmenuCopyText(selectTextNow);
		btf.snackbarShow('复制成功，复制和转载请标注本文地址');
	});
	$('#menu-commenttext').on('click', function() {
		rm.rightMenuCommentText(selectTextNow);
	});
	$('#menu-newwindow').on('click', function() {
		window.open(domhref);
		rm.hideRightMenu();
	});
	$('#menu-copylink').on('click', rm.copyLink);
	$('#menu-downloadimg').on('click', function() {
		heo.downloadImage(domImgSrc, 'hao');
	});
	$('#menu-newwindowimg').on('click', function() {
		window.open(domImgSrc, "_blank");
		rm.hideRightMenu();
	});
	$('#menu-copyimg').on('click', function() {
		rm.writeClipImg(domImgSrc);
	});
	$('#menu-searchBaidu').on('click', rm.searchBaidu);
	//音乐
	$('#menu-music-toggle').on('click', heo.musicToggle);
	$('#menu-music-back').on('click', heo.musicSkipBack);
	$('#menu-music-forward').on('click', heo.musicSkipForward);
	$('#menu-music-copyMusicName').on('click', function() {
		rm.rightmenuCopyText(heo.musicGetName());
		btf.snackbarShow('复制歌曲名称成功', false, 3000);
	});
}