// 格式化时间
export function formatDateTime(date) {
	let y = date.getFullYear();
	let m = date.getMonth() + 1;
	m = m < 10 ? '0' + m : m;
	let d = date.getDate();
	d = d < 10 ? '0' + d : d;
	let h = date.getHours();
	h = h < 10 ? '0' + h : h;
	let minute = date.getMinutes();
	minute = minute < 10 ? '0' + minute : minute;
	let second = date.getSeconds();
	second = second < 10 ? '0' + second : second;
	return y + '-' + m + '-' + d + ' ' + h + ':' + minute + ':' + second;
}

/**
 * 毫秒转换友好的显示格式
 * 输出格式：21小时前
 * @param  {[type]} date 日期
 */
export function dateStr(date) {
	// 获取js 时间戳
	let time = new Date().getTime();
	// 去掉 js 时间戳后三位
	time = parseInt((time - date * 1000) / 1000);
	// 存储转换值
	let s;
	if (time < 60 * 10) {
		// 十分钟内
		return '刚刚';
	} else if (time < 60 * 60 && time >= 60 * 10) {
		// 超过十分钟少于1小时
		s = Math.floor(time / 60);
		return s + '分钟前';
	} else if (time < 60 * 60 * 24 && time >= 60 * 60) {
		// 超过1小时少于24小时
		s = Math.floor(time / 60 / 60);
		return s + '小时前';
	} else if (time < 60 * 60 * 24 * 3 && time >= 60 * 60 * 24) {
		// 超过1天少于3天内
		s = Math.floor(time / 60 / 60 / 24);
		return s + '天前';
	} else {
		// 超过3天
		var date = new Date(value); //时间戳为10位需*1000，时间戳为13位的话不需乘1000
		var Y = date.getFullYear() + '-';
		var M = (date.getMonth() + 1 < 10 ? '0' + (date.getMonth() + 1) : date.getMonth() + 1) + '-';
		var D = date.getDate() + ' ';
		var h = date.getHours() + ':';
		var m = date.getMinutes() + ':';
		var ss = date.getSeconds();
		return h + m + ss;
	}
}

/**
 * 聊天会话
 */
export class Chat {
	constructor(id, name, avatar, unReadCount, lastMessage, mobile, email, type) {
		this.id = id;
		this.name = name;
		this.avatar = avatar;
		this.unReadCount = unReadCount;
		this.lastMessage = lastMessage;
		this.mobile = mobile;
		this.email = email;
		this.type = type;
	}
}

/**
 * 图片加载完成处理函数
 * @param arr 图片的src集合
 * @returns {Promise}
 */
function preloadImages(arr) {
	let loadedImage = 0;
	let images = [];
	return new Promise(function(resolve, reject) {
		for (let i = 0; i < arr.length; i++) {
			images[i] = new Image();
			images[i].src = arr[i];
			images[i].onload = function() {
				loadedImage++;
				if (loadedImage === arr.length) {
					resolve();
				}
			};
			images[i].onerror = function() {
				reject();
			};
		}
	});
}

/**
 * 图片加载完成，聊天对话框scroll拉到最下
 * @param id 容器id
 */
export function imageLoad(id) {
	scrollBottom(id);
	let messageBox = document.getElementById(id);
	if (messageBox) {
		let images = messageBox.getElementsByTagName('img');
		if (images) {
			let arr = [];
			for (let i = 0; i < images.length; i++) {
				arr[i] = images[i].src;
			}
			preloadImages(arr)
				.then(() => {
					scrollBottom(id);
				})
				.catch(function() {
					scrollBottom(id);
				});
		}
	}
}

/**
 * 滚动条到最下方
 * @param id 容器id
 */
function scrollBottom(id) {
	let div = document.getElementById(id);
	if (div) {
		div.scrollTop = div.scrollHeight;
	}
}
const list = [
  "微笑", "撇嘴", "色", "发呆", "得意", "流泪", "害羞", "闭嘴", "睡", "大哭", "尴尬", "发怒", "调皮", "呲牙", "惊讶", "难过", "囧", "抓狂", "吐", "偷笑", "愉快", "白眼", "傲慢", "困", "惊恐", "流汗", "憨笑", "悠闲", "奋斗", "咒骂", "疑问", "嘘", "晕", "衰", "骷髅", "敲打", "再见", "擦汗", "抠鼻", "鼓掌", "坏笑", "左哼哼", "右哼哼", "哈欠", "鄙视", "委屈", "快哭了", "阴险", "亲亲", "可怜", "菜刀", "西瓜", "啤酒", "咖啡", "猪头", "玫瑰", "凋谢", "嘴唇", "爱心", "心碎", "蛋糕", "炸弹", "便便", "月亮", "太阳", "拥抱", "强", "弱", "握手", "胜利", "抱拳", "勾引", "拳头", "OK", "跳跳", "发抖", "怄火", "转圈", "高兴", "口罩", "笑哭", "吐舌头", "傻呆", "恐惧", "悲伤", "不屑", "嘿哈", "捂脸", "奸笑", "机智", "皱眉", "耶", "鬼脸", "合十", "加油", "庆祝", "礼物", "红包", "鸡"
]
export let faceUtils = {
	alt: list.map(item => `[${item}]`),
	faces: () => {
		let obj = {}
    for (let i = 0; i < list.length; i++) {
      const key = `[${list[i]}]`
      obj[key] = `https://liangxin.zthymaoyi.com/upload/${i}.png`
    }
    return obj;
	}
};

export function transform(content) {
	// 支持的html标签
	let html = function(end) {
		return new RegExp('\\n*\\[' + (end || '') +
			'(code|pre|div|span|p|table|thead|th|tbody|tr|td|ul|li|ol|li|dl|dt|dd|h2|h3|h4|h5)([\\s\\S]*?)]\\n*', 'g');
	};
	let fa = faceUtils.faces();
	if (content) {
		content = content
			.replace(/&(?!#?[a-zA-Z0-9]+;)/g, '&amp;')
			.replace(/</g, '&lt;')
			.replace(/>/g, '&gt;')
			.replace(/'/g, '&#39;')
			.replace(/"/g, '&quot;') // XSS
			.replace(/@(\S+)(\s+?|$)/g, '@<a href="javascript:;">$1</a>$2')

			.replace(/\[([^\s\[\]]+?)]/g, function(face) {
				// 转义表情
				let alt = face.replace(/^/g, '');
				return '<img width="30" alt="' + fa[alt] + '" title="' + fa[alt] + '" src="' + fa[alt] + '">';
			})
			.replace(/img\[([^\s]+?)]/g, function(img) {
				// 转义图片
				let href = img.replace(/(^img\[)|(]$)/g, '');
				return '<img class="message-img" src="' + href + '" alt="消息图片不能加载">';
			})
			.replace(/file\([\s\S]+?\)\[[\s\S]*?]/g, function(str) {
				// 转义文件
				let href = (str.match(/file\(([\s\S]+?)\)\[/) || [])[1];
				let text = (str.match(/\)\[([\s\S]*?)]/) || [])[1];
				if (!href) return str;
				return '<a class="message-file" href="' + href + '"><i class="ivu-icon ivu-icon-md-arrow-down"></i>' + (text ||
					href) + '</a>';
			})
			.replace(/audio\[([^\s]+?)]/g, function(audio) {
				// 转义音频
				return '<div class="message-audio" data-src="' + audio.replace(/(^audio\[)|(]$)/g, '') +
					'"><i class="layui-icon">&#xe652;</i><p>音频消息</p></div>';
			})
			.replace(/video\[([^\s]+?)]/g, function(video) {
				// 转义音频
				return '<div class="message-video"  data-src="' + video.replace(/(^video\[)|(]$)/g, '') +
					'"><i class="layui-icon">&#xe652;</i></div>';
			})
			.replace(/a\([\s\S]+?\)\[[\s\S]*?]/g, function(str) {
				// 转义链接
				let href = (str.match(/a\(([\s\S]+?)\)\[/) || [])[1];
				let text = (str.match(/\)\[([\s\S]*?)]/) || [])[1];
				if (!href) return str;
				return '<a href="' + href + '" target="_blank">' + (text || href) + '</a>';
			})
			.replace(html(), '<$1 $2>')
			.replace(html('/'), '</$1>') // 转移HTML代码
			.replace(/\n/g, '<br>'); // 转义换行
	}
	return content;
}

export const ChatListUtils = {
	listKey: '_chatList',
	setChatList: function(userId, chatList) {
		localStorage.setItem(userId + this.listKey, JSON.stringify(chatList));
	},
	//从缓存中获取已经保存的会话
	getChatList: function(userId) {
		let str = localStorage.getItem(userId + this.listKey);
		if (!str) {
			return [];
		}
		return JSON.parse(str);
	},
	//删除聊天会话框
	delChat: function(userId, chat) {
		let tempChatList = [];
		for (let item of this.getChatList(userId)) {
			if (String(item.id) !== String(chat.id)) {
				tempChatList.push(item);
			}
		}
		// 放入缓存
		this.setChatList(userId, tempChatList);
		return tempChatList;
	},
	/**
	 * 刷新会话列表
	 * @param self 当前对象
	 * @param user 用户
	 * @param host 主机名
	 * @param type 0 单聊 1 群聊
	 * @returns {Chat} 当前会话
	 */
	resetChatList: function(self, user, host, type) {
		console.log('user:' + JSON.stringify(user));
		let chatList = this.getChatList(self.$store.state.user.id);
		// 删除当前用户已经有的会话
		let newChatList = chatList.filter(function(element) {
			return String(element.id) !== String(user.id);
		});

		let avatar = user.avatar;
		if (user.avatar.indexOf(host) === 0) {
			avatar = user.avatar;
		} else {
			avatar = host + user.avatar;
		}
		// 重新添加会话，放到第一个
		let chat = new Chat(user.id, user.name, avatar, 0, '', user.mobile, user.email, type);
		newChatList.unshift(chat);
		// 存储到localStorage 的 chatList
		this.setChatList(self.$store.state.user.id, chatList);
		self.$store.commit('setChatList', newChatList);
		return chat;
	}
};
//信息的类型 MSG_PING 心跳 、MSG_READY 链接就绪  MSG_MESSAGE 消息
export const MessageInfoType = {
	MSG_PING: '0',
	MSG_READY: '1',
	MSG_MESSAGE: '2'
};
//信息的目标类型 FRIEND 私聊 、CHAT_GROUP 群聊
export const MessageTargetType = {
	FRIEND: '0',
	CHAT_GROUP: '1'
};


export const ErrorType = {
	TIMEOUT_ERROR: 9, //超时
	TOKEN_ERROR: 401, //token 失效错误
	PARAM_ERROR: 400, //参数错误
	FLUSH_TOKEN_ERROR: 7, //刷新token错误
	SERVER_ERROR: 500, //服务器错误
	NET_ERROR: 'TypeError: Failed to fetch' //网络链接不通
};