var Evt = require('evt');
var db = require('db');

function log(o) {
	console.log(o);
}

/**
UserId (主键)
Email
Username
Token
LastLoginTime
IsActive // 是否是活跃用户
*/

// 用户基本信息
var User = {
	token: '',
	userId: '',
	email: '',
	username: '',
	// 登录后保存当前
	setCurUser: function(user) {
		if(user) {
			this.token = user.Token;
			this.userId = user.UserId;
			this.email = user.Email;
			this.username = user.Username;
			// 保存到数据库中
			this.saveCurUser(user);
		}
	},
	saveCurUser: function(user, callback) {
		// 当前用户是否在数据库中
		db.users.count({_id: user.UserId}, function(err, count) {
			if(err || count == 0) {
				// 添加一个
				user['_id'] = user.UserId;
				user['IsActive'] = true;
				db.users.insert(user, function(err, doc) {
					log(err);
				});
			} else {
				user.IsActive = true;
				delete user['Ok'];
				db.users.update({_id: user.UserId}, {$set: user}, function(err, cnt) {
					if(err || cnt == 0) {
						log(err);
						callback && callback(false);
					} else {
						callback && callback(true);
					}
				});
			}
		});
		// 设值其它用户为非active
		db.users.update({_id: {$ne: user.UserId}}, {$set: {IsActive: false}}, {multiple: true})
	},
	// 打开软件时, 从db中获取当前用户
	init: function(callback) {
		console.log("......user init.......")
		var me = this;
		db.users.findOne({IsActive: true}, function(err, doc) {
			if(err || !doc) {
				log('不存在');
				callback && callback(false);
			} else {
				me.setCurUser(doc);
				callback && callback(doc);
			}
		});
	},
	// 得到当前活跃用户Id
	getCurActiveUserId: function() {
		return this.userId || "user1";
	},
	getToken: function() {
		return this.token || "user1";
	},
	getCurUserImagesPath: function() {
		return Evt.getBasePath() + '/' + this.getCurUserImagesAppPath();
	},
	getCurUserAttachsPath: function() {
		return Evt.getBasePath() + '/' + this.getCurUserAttachsAppPath();
	},
	getCurUserImagesAppPath: function() {
		return 'data/' + this.getCurActiveUserId() + '/images';
	},
	getCurUserAttachsAppPath: function() {
		return 'data/' + this.getCurActiveUserId() + '/attachs';
	}
};
module.exports = User;