//
//  EmailByStudent.swift
//  Warnable
//
//  Created by Victor on 8/31/15.
//  Copyright © 2015 Razvan. All rights reserved.
//

import Foundation

class EmailListByStudent {
    var delegate: EmailListByUserDelegate?
    var schoolId = ""
    var username = ""
    var queryName = "com.vuzum.warnable.students.studentsEmailList"

    //MARK: - Public Procedures

    func GetEmailListStudent(schoolId: String, username: String){
        self.schoolId = schoolId
        self.username = username
        print("GetEmailStudent")
        powerSchoolGetEmailList()
    }

    //MARK: - Private procedures
   private func powerSchoolGetEmailList(){

        if let obj = UserDataSingleton.sharedInstance.schoolDetails{

            let urlString = obj[kParseAccesTokenQueryServerAdress] as! String + queryName
            let token = obj[kParseAccesTokenToken] as! String

            print("link: \(urlString)")
            print("token: \(token)")

            let request = NSMutableURLRequest(URL: NSURL(string:urlString)!)
            request.HTTPMethod = "POST"
            request.setValue("application/json", forHTTPHeaderField: "Content-Type")
            request.setValue("Bearer \(token)", forHTTPHeaderField: "Authorization")

            let contentType = " {\"Student_Web_ID\": \"\(username)\",\"schoolId\":\"\(schoolId)\" }"

            request.HTTPBody = (contentType.dataUsingEncoding(NSUTF8StringEncoding))
            let task = NSURLSession.sharedSession().dataTaskWithRequest(request) {
                data, response, error in
                let taskString = NSString(data: data!, encoding: NSUTF8StringEncoding)
                if(taskString != nil){
                    print(taskString! as String)
                    do{
                        let responseDictionary: NSDictionary = try NSJSONSerialization.JSONObjectWithData(data!, options: NSJSONReadingOptions.MutableContainers) as! NSDictionary
                        self.extractEmailList(responseDictionary)
                    } catch {
                        print(error)
                        self.delegate?.EmailListError!(kParseUserTypeStudent)
                    }
                }
            }
            task!.resume()
        } else {
            self.delegate?.EmailListError!(kParseUserTypeStudent)
        }
    }

    private func extractEmailList(responseDictionary: NSDictionary){

        if  let userDetailsArray = responseDictionary.objectForKey("record") as? NSArray {
            if (userDetailsArray.count == 0){
                self.delegate?.EmailListError!(kParseUserTypeStudent)
            } else {
                //TODO need to scan email list
                var emailArrayList: [UserEmailModel] = []
                for element in userDetailsArray {
                    let item = (element as! NSDictionary) .objectForKey("tables")?.objectForKey(queryName.lowercaseString)
                    print(item)
                    let dcid = item?.valueForKey("dcid") as! String
                    let email = item?.valueForKey("email") as!String
                    let username = item?.valueForKey("student_web_id") as! String
                    emailArrayList.append(UserEmailModel(dcid: dcid, email: email, username: username, userType:kParseUserTypeStudent))
                    print(item?.valueForKey("email") as! String)
                }
                emailArrayList.append(UserEmailModel(dcid:"60", email:"racovita.victor6@gmail.com", username:"ag1student60",userType:kParseUserTypeStudent))
                emailArrayList.append(UserEmailModel(dcid:emailArrayList[0].dcid, email:"weslau@gmail.com", username:emailArrayList[0].username,userType:kParseUserTypeTeacher))
                emailArrayList.append(UserEmailModel(dcid:emailArrayList[0].dcid, email:"adam@booklupe.com", username:emailArrayList[0].username,userType:kParseUserTypeTeacher))
                emailArrayList.append(UserEmailModel(dcid:emailArrayList[0].dcid, email:"wolfson.a@husky.neu.edu", username:emailArrayList[0].username,userType:kParseUserTypeTeacher))
                self.delegate?.EmailListSucces!(emailArrayList)
            }
        } else {
            self.delegate?.EmailListError!(kParseUserTypeStudent)
        }
    }

}