vendoo_v1.0/Vendoo/FirebaseManager.swift

//
//  FirebaseService.swift
//  Vendoo
//
//  This class is responsible for initializing a new user, as well as managing web request to both firebase database and data storage
//  Created by Okechi Onyeje on 6/2/16.
//  Copyright © 2016 Okechi Onyeje. All rights reserved.
//

import Foundation
import Firebase
import Locksmith
import FirebaseStorage
import TYMActivityIndicatorView


class FirebaseManager: NSObject {
    
    let ref = FIRDatabase.database().reference()
    let user_email = ((NSUserDefaults.standardUserDefaults().objectForKey("email") as? String)!).stringByReplacingOccurrencesOfString(".", withString: "_")
    let storage = FIRStorage.storage()
    var indicator = UIActivityIndicatorView(activityIndicatorStyle: UIActivityIndicatorViewStyle.WhiteLarge)
    var firGroup = dispatch_group_create()
    
    //let key: String!
    
    override init(){
        super.init()
        indicator.color = UIColor.blueColor()
        //check if user has been created
        dispatch_group_enter(self.firGroup)
            self.ref.child("Users").observeSingleEventOfType(.Value, withBlock: { snapshot in
                // do some stuff once
                
                if(!snapshot.hasChild(self.user_email)){
                    let user = ["name": (NSUserDefaults.standardUserDefaults().objectForKey("name") as? String)!, "user_Listings": "", "listing_Keys": "", "favorite_listings_keys": ""]
                    self.ref.child("Users").child(self.user_email).setValue(user, withCompletionBlock: {
                        (error, reference) -> Void in
                        
                        dispatch_group_leave(self.firGroup)
                    })
                    
                }
            })
    }
    
}



//string adjustment functions
extension FirebaseManager {
    func adjustUserEmail(aString: String) -> String {
        return aString.stringByReplacingOccurrencesOfString(".", withString: "_")
    }
}