//
//  UserDetailsViewController.swift
//  Learn Genie
//
//  Created by Suraj Kumar Mandal on 03/09/21.
//

import UIKit
import Toast_Swift
import Alamofire

class UserDetailsViewController: UIViewController {
    
    @IBOutlet var nameLabel: UILabel!
    @IBOutlet var nameTF: UITextField!
    @IBOutlet var emailLabel: UILabel!
    @IBOutlet var emailTF: UITextField!
    @IBOutlet var dobLabel: UILabel!
    @IBOutlet var dobTF: UITextField!
    @IBOutlet var genderLabel: UILabel!
    @IBOutlet var genderTF: UITextField!
    @IBOutlet var mobileLabel: UILabel!
    @IBOutlet var mobileTF: UITextField!
    @IBOutlet var stateLabel: UILabel!
    @IBOutlet var stateTF: UITextField!
    @IBOutlet var districtLabel: UILabel!
    @IBOutlet var districtTF: UITextField!
    @IBOutlet var submitButton: CustomButton!
    
    var viewModel = UserDetailsViewModel()
    let stateData = DBManager.sharedInstance.database.objects(StateModel.self)
    let districtData = DBManager.sharedInstance.database.objects(DistrictModel.self)
    let userData = UserDefaults.standard.dictionary(forKey: Constant.userData)
    let genderData = [String](arrayLiteral: "Male", "Female", "Third Gender", "Will not specify")
    var pageMode = String() //Register / Profile
    fileprivate let customPicker = ToolbarPickerView()
    
    var stateArray = [String]()
    var stateIdArray = [Int]()
    var districtArray = [String]()
    
    var stateId = 1 //default
    var districtId = 1 //default
    var gender = "Will not specify"
    var dateOfBirth = "01/01/2021"
    var mobile = "9999999999"
    
    var activeTextField = 0
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // Do any additional setup after loading the view.
        viewModel.delegate = self
        ApiManager.generateCookie()
        print(pageMode)
    }
    
    override func viewWillAppear(_ animated: Bool) {
        setupUI()
        setupUserData()
    }
    
    func setupUI() {
        let tap:UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(self.dismissKeyboard))
        view.addGestureRecognizer(tap)
    }
    
    func setupUserData() {
        //Set text field title name
        nameLabel.text = Helper.translateText(inputText: "Enter Name")
        emailLabel.text = Helper.translateText(inputText: "Email")
        dobLabel.text = Helper.translateText(inputText: "Enter Date of Birth")
        genderLabel.text = Helper.translateText(inputText: "Select Gender")
        mobileLabel.text = Helper.translateText(inputText: "Mobile")
        stateLabel.text = Helper.translateText(inputText: "Select State")
        districtLabel.text = Helper.translateText(inputText: "Select District")
        if pageMode == "Profile" {
            submitButton.setTitle(Helper.translateText(inputText: "UPDATE"), for: .normal)
        } else {
            submitButton.setTitle(Helper.translateText(inputText: "SUBMIT"), for: .normal)
        }
        
        //Set text field data
        if pageMode == "Profile" {
            let userModelDB = DBManager.sharedInstance.database.objects(UserDetailsModel.self)
            if let row = userModelDB.firstIndex(where: {$0.email == self.userData?["email"] as? String}) {
                nameTF.text = userModelDB[row].name
                emailTF.text = userModelDB[row].email
                let dateString = userModelDB[row].dateOfBirth
                let requiredFormat = dateString.toDateString(inputDateFormat: "yyyy-MM-dd'T'HH:mm:ssZ", ouputDateFormat: Constant.dateFormat)
                dobTF.text = requiredFormat
                genderTF.text = userModelDB[row].gender
                mobileTF.text = userModelDB[row].mobile
                stateTF.text = getStateName(id: userModelDB[row].stateId)
                self.stateId = userModelDB[row].stateId
                districtTF.text = getDistrictName(id: userModelDB[row].districtId)
                self.districtId = userModelDB[row].districtId
            }
        }
        nameTF.text = userData?["name"] as? String
        emailTF.text = userData?["email"] as? String
        dobTF.datePicker(target: self,
                         doneAction: #selector(doneAction),
                         cancelAction: #selector(cancelAction),
                         datePickerMode: .date)
        createPickerView()
        nameTF.delegate = self
        emailTF.delegate = self
        dobTF.delegate = self
        genderTF.delegate = self
        mobileTF.delegate = self
        stateTF.delegate = self
        districtTF.delegate = self
        districtTF.isUserInteractionEnabled = false
        stateArray.removeAll()
        stateIdArray.removeAll()
        getState()
    }
    
    @objc func dismissKeyboard() {
        self.view.endEditing(true)
    }
    
    func createPickerView() {
        self.genderTF.inputView = self.customPicker
        self.genderTF.inputAccessoryView = self.customPicker.toolbar
        
        self.stateTF.inputView = self.customPicker
        self.stateTF.inputAccessoryView = self.customPicker.toolbar
        
        self.districtTF.inputView = self.customPicker
        self.districtTF.inputAccessoryView = self.customPicker.toolbar
        
        self.customPicker.delegate = self
        self.customPicker.dataSource = self
        self.customPicker.toolbarDelegate = self
    }
    
    @objc
    func cancelAction() {
        self.dobTF.resignFirstResponder()
    }
    
    @objc
    func doneAction() {
        if let datePickerView = self.dobTF.inputView as? UIDatePicker {
            let dateFormatter = DateFormatter()
            dateFormatter.dateFormat = Constant.dateFormat
            let dateString = dateFormatter.string(from: datePickerView.date)
            self.dobTF.text = dateString
            self.dateOfBirth = dateString
            
            print(datePickerView.date)
            print(dateString)
            
            self.dobTF.resignFirstResponder()
        }
    }
    
    func getStateName(id:Int) -> String {
        var stateName = String()
        if let row = stateData.firstIndex(where: {$0.id == id}) {
            stateName = stateData[row].stateName
        }
        return stateName
    }
    
    func getDistrictName(id:Int) -> String {
        var districtName = String()
        if let row = districtData.firstIndex(where: {$0.id == id}) {
            districtName = districtData[row].districtName
        }
        return districtName
    }
    
    func getState() {
        for state in stateData {
            let id = state.id
            let name = state.stateName
            self.stateIdArray.append(id)
            self.stateArray.append(name)
        }
    }
    
    func getDistrict(stateId:Int) {
        for district in districtData {
            if district.stateId == stateId {
                let name = district.districtName
                self.districtArray.append(name)
            }
        }
    }
    
    func getStateId(name: String) -> Int {
        var id = Int()
        for state in stateData {
            if name == state.stateName {
                id = state.id
            }
        }
        return id
    }
    
    func getDistrictId(name: String) -> Int {
        var id = Int()
        for district in districtData {
            if name == district.districtName {
                id = district.id
            }
        }
        return id
    }
    
    func checkValidation() {
        if nameTF.text?.isEmpty == true {
            self.view.makeToast(Helper.translateText(inputText: "Enter a valid name, 3 or more characters long"))
        }
        else if emailTF.text?.isEmpty == true && emailTF.text?.isValidEmail == false {
            self.view.makeToast(Helper.translateText(inputText: "Enter valid email"))
        }
//        else if dobTF.text?.isEmpty == true {
//            self.view.makeToast(Helper.translateText(inputText: "Select your date of birth"))
//        }
//        else if genderTF.text?.isEmpty == true {
//            self.view.makeToast(Helper.translateText(inputText: "Select your gender"))
//        }
//        else if mobileTF.text?.isEmpty == true {
//            self.view.makeToast(Helper.translateText(inputText: "Enter Mobile Number"))
//        }
//        else if mobileTF.text?.count != 10 {
//            self.view.makeToast(Helper.translateText(inputText: "Enter Valid Mobile Number"))
//        }
//        else if stateTF.text?.isEmpty == true {
//            self.view.makeToast(Helper.translateText(inputText: "Select your state"))
//        }
//        else if districtTF.text?.isEmpty == true {
//            self.view.makeToast(Helper.translateText(inputText: "Select your district"))
//        }
        else {
            if pageMode == "Profile" {
                updateStudent()
            } else {
                saveStudent()
            }
        }
    }
    
    
    /*
     // MARK: - Navigation
     
     // In a storyboard-based application, you will often want to do a little preparation before navigation
     override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
     // Get the new view controller using segue.destination.
     // Pass the selected object to the new view controller.
     }
     */
    
    @IBAction func submitButtonAction(_ sender: Any) {
        if Reachability.isConnectedToNetwork() {
            checkValidation()
        } else {
            Alert.showInternetFailureAlert(on: self)
        }
    }
    
}

extension UserDetailsViewController: UIPickerViewDelegate, UIPickerViewDataSource {
    // MARK: UIPickerView Delegation
    
    func numberOfComponents(in pickerView: UIPickerView) -> Int {
        return 1
    }
    
    func pickerView( _ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
        switch activeTextField
        {
        case 1:
            return genderData.count
        case 2:
            return stateArray.count
        case 3:
            return districtArray.count
        default:
            return districtArray.count
            
        }
    }
    
    func pickerView( _ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
        switch activeTextField{
        case 1:
            return genderData[row]
        case 2:
            return stateArray[row]
        case 3:
            return districtArray[row]
        default:
            return districtArray[row]
        }
    }
    
    func pickerView( _ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
        
        switch activeTextField{
        case 1:
            genderTF.text = genderData[row]
            break
            
        case 2:
            stateTF.text = stateArray[row]
            break
        case 3:
            districtTF.text = districtArray[row]
            break
        default:
            districtTF.text =  districtArray[row]
            break
        }
    }
}

extension UserDetailsViewController: UITextFieldDelegate {
    // when user select a textfield, this method will be called
    func textFieldDidBeginEditing(_ textField: UITextField) {
        switch textField {
        case genderTF:
            activeTextField = 1
            customPicker.reloadAllComponents()
        case stateTF:
            activeTextField = 2
            customPicker.reloadAllComponents()
        case districtTF:
            activeTextField = 3
            customPicker.reloadAllComponents()
        default:
            activeTextField = 0
        }
    }
}

extension UserDetailsViewController: ToolbarPickerViewDelegate {
    func didTapDone() {
        switch activeTextField {
        case 1:
            let row = self.customPicker.selectedRow(inComponent: 0)
            self.customPicker.selectRow(row, inComponent: 0, animated: false)
            self.genderTF.text = self.genderData[row]
            self.genderTF.resignFirstResponder()
        case 2:
            let row = self.customPicker.selectedRow(inComponent: 0)
            self.customPicker.selectRow(row, inComponent: 0, animated: false)
            self.stateTF.text = self.stateArray[row]
            districtTF.isUserInteractionEnabled = true
            self.districtTF.text = nil
            districtArray.removeAll()
            getDistrict(stateId: self.stateIdArray[row])
            self.stateId = getStateId(name: self.stateArray[row])
            self.stateTF.resignFirstResponder()
        case 3:
            let row = self.customPicker.selectedRow(inComponent: 0)
            self.customPicker.selectRow(row, inComponent: 0, animated: false)
            self.districtTF.text = self.districtArray[row]
            self.districtId = getDistrictId(name: self.districtArray[row])
            self.districtTF.resignFirstResponder()
        default:
            return
        }
    }
    
    func didTapCancel() {
        switch activeTextField{
        case 1:
            self.genderTF.text = nil
            self.genderTF.resignFirstResponder()
        case 2:
            self.stateTF.text = nil
            self.stateTF.resignFirstResponder()
        case 3:
            self.districtTF.text = nil
            self.districtTF.resignFirstResponder()
        default:
            return
        }
    }
}

extension UserDetailsViewController {
    
    func saveStudent() {
        ActivityIndicator.start(style: .large, backColor: UIColor.black.withAlphaComponent(0.5), baseColor: UIColor.white)
        let topicData = DBManager.sharedInstance.database.objects(TopicModel.self)
        if topicData.count != 0 {
            let topicId = topicData[0].id
            let levelId = topicData[0].levelId
            
            let url = "\(ApiUrl.BASE_URL + ApiUrl.API_STUDENT)/save.json"
            print(url)
            let userIdentifier = UserDefaultsConstant.getValueFromUserDefults(for: Constant.userIdentifier) ?? ""
            let cookieValue = UserDefaultsConstant.getValueFromUserDefults(for: "cookieValue") ?? ""
            let headers: HTTPHeaders = [
                "Content-Type": "application/json",
                "Accept": "application/json",
                "Cookie": "\(Constant.CookieName) = \(cookieValue)"
            ]
            print(headers)
            
            if mobileTF.text?.isEmpty == false {
                self.mobile = mobileTF.text!
            } else if genderTF.text?.isEmpty == false {
                self.gender = genderTF.text!
            } else if dobTF.text?.isEmpty == false {
                self.dateOfBirth = dobTF.text!
            }
            
            let params: Parameters?
            params = [
                "appleUserIdentifier" : userIdentifier,
                "name" : nameTF.text ?? "",
                "mobile" : mobile,
                "email" : emailTF.text ?? "",
                "username" : emailTF.text?.stringBefore("@") ?? "",
                "password" : emailTF.text?.stringBefore("@") ?? "",
                "gender" : gender,
                "dateOfBirth" : dateOfBirth,
                "state" : self.stateId,
                "district" : self.districtId,
                "topic" : topicId,
                "level" : levelId,
                "role" : 2
            ]
            print(params!)
            
            AF.request(url, method: .post, parameters: params, encoding: JSONEncoding.default, headers: headers).responseJSON { response in
                switch response.result {
                case .success(let value):
                    ActivityIndicator.stop()
                    print(value)
                    let userData = value as! NSDictionary
                    
                    let accountExpired = userData.value(forKey: "accountExpired") as! NSNumber;
                    let accountLocked = userData.value(forKey: "accountLocked") as! NSNumber;
                    let dateCreated = userData.value(forKey: "dateCreated") as? String ?? "";
                    let dateOfBirth = userData.value(forKey: "dateOfBirth") as? String ?? "";
                    
                    let district = userData.value(forKey: "district") as? NSObject;
                    let districtId = district?.value(forKey: "id") as! NSNumber;
                    
                    let email = userData.value(forKey: "email") as? String ?? "";
                    let enabled = userData.value(forKey: "enabled") as! NSNumber;
                    let gender = userData.value(forKey: "gender") as? String ?? "";
                    let id = userData.value(forKey: "id") as! NSNumber;
                    
                    let level = userData.value(forKey: "level") as? NSObject;
                    let levelId = level?.value(forKey: "id") as! NSNumber;
                    let mobile = userData.value(forKey: "mobile") as? String ?? "";
                    let name = userData.value(forKey: "name") as? String ?? "";
                    let password = userData.value(forKey: "password") as? String ?? "";
                    let passwordExpired = userData.value(forKey: "passwordExpired") as! NSNumber;
                    
                    let role = userData.value(forKey: "role") as? NSObject;
                    let roleId = role?.value(forKey: "id") as! NSNumber;
                    
                    let state = userData.value(forKey: "state") as? NSObject;
                    let stateId = state?.value(forKey: "id") as! NSNumber;
                    
                    let topic = userData.value(forKey: "topic") as? NSObject;
                    let topicId = topic?.value(forKey: "id") as! NSNumber;
                    let username = userData.value(forKey: "username") as? String ?? "";
                    let appleUserIdentifier = userData.value(forKey: "appleUserIdentifier") as? String ?? "";
                    
                    
                    var userModel = [UserDetailsModel]()
                    let newUserModel = UserDetailsModel(accountExpired: Int(truncating: accountExpired), accountLocked: Int(truncating: accountLocked), dateCreated: dateCreated, dateOfBirth: dateOfBirth, districtId: Int(truncating: districtId), email: email, enabled: Int(truncating: enabled), gender: gender, id: Int(truncating: id), levelId: Int(truncating: levelId), mobile: mobile, name: name, password: password, passwordExpired: Int(truncating: passwordExpired), roleId: Int(truncating: roleId), stateId: Int(truncating: stateId), topicId: Int(truncating: topicId), username: username, appleIdentifier: appleUserIdentifier)
                    userModel.append(newUserModel)
                    DBManager.sharedInstance.addData(objs: userModel)
                    let userModelDB = DBManager.sharedInstance.database.objects(UserDetailsModel.self)
                    print("user count")
                    print(userModelDB.count)
                    
                    UserDefaultsConstant.setIntValueInUserDefaults(objValue: Int(truncating: id), for: Constant.studentId)
                    //Navigate to Home
                    DispatchQueue.main.async {
                        let loaderVC = self.storyboard?.instantiateViewController(withIdentifier:"LoadingAnimationViewController" ) as! LoadingAnimationViewController
                        self.navigationController?.pushViewController(loaderVC, animated: true)
                    }
                case .failure(let error):
                    ActivityIndicator.stop()
                    print(error)
                }
            }
        }
    }
    
    func updateStudent() {
        ActivityIndicator.start(style: .large, backColor: UIColor.black.withAlphaComponent(0.5), baseColor: UIColor.white)
        let topicData = DBManager.sharedInstance.database.objects(TopicModel.self)
        let studentId = UserDefaultsConstant.getIntValueFromUserDefults(for: Constant.studentId) as! Int
        if topicData.count != 0 {
            let topicId = topicData[0].id
            let levelId = topicData[0].levelId
            
            let url = "\(ApiUrl.BASE_URL + ApiUrl.API_STUDENT)/update.json"
            print(url)
            let userIdentifier = UserDefaultsConstant.getValueFromUserDefults(for: Constant.userIdentifier) ?? ""
            let cookieValue = UserDefaultsConstant.getValueFromUserDefults(for: "cookieValue") ?? ""
            let headers: HTTPHeaders = [
                "Content-Type": "application/json",
                "Accept": "application/json",
                "Cookie": "\(Constant.CookieName) = \(cookieValue)"
            ]
            print(headers)
            
            let params: Parameters?
            params = [
                "appleUserIdentifier" : userIdentifier,
                "id" : studentId,
                "name" : nameTF.text ?? "",
                "mobile" : mobileTF.text ?? "",
                "email" : emailTF.text ?? "",
                "username" : emailTF.text?.stringBefore("@") ?? "",
                "password" : emailTF.text?.stringBefore("@") ?? "",
                "gender" : genderTF.text ?? "",
                "dateOfBirth" : dobTF.text ?? "",
                "state" : self.stateId,
                "district" : self.districtId,
                "topic" : topicId,
                "level" : levelId,
                "role" : 2
            ]
            print(params!)
            
            AF.request(url, method: .put, parameters: params, encoding: JSONEncoding.default, headers: headers).responseJSON { response in
                switch response.result {
                case .success(let value):
                    ActivityIndicator.stop()
                    print(value)
                    let userData = value as! NSDictionary
                    
                    let accountExpired = userData.value(forKey: "accountExpired") as! NSNumber;
                    let accountLocked = userData.value(forKey: "accountLocked") as! NSNumber;
                    let dateCreated = userData.value(forKey: "dateCreated") as? String ?? "";
                    let dateOfBirth = userData.value(forKey: "dateOfBirth") as? String ?? "";
                    
                    let district = userData.value(forKey: "district") as? NSObject;
                    let districtId = district?.value(forKey: "id") as! NSNumber;
                    
                    let email = userData.value(forKey: "email") as? String ?? "";
                    let enabled = userData.value(forKey: "enabled") as! NSNumber;
                    let gender = userData.value(forKey: "gender") as? String ?? "";
                    let id = userData.value(forKey: "id") as! NSNumber;
                    
                    let level = userData.value(forKey: "level") as? NSObject;
                    let levelId = level?.value(forKey: "id") as! NSNumber;
                    let mobile = userData.value(forKey: "mobile") as? String ?? "";
                    let name = userData.value(forKey: "name") as? String ?? "";
                    let password = userData.value(forKey: "password") as? String ?? "";
                    let passwordExpired = userData.value(forKey: "passwordExpired") as! NSNumber;
                    
                    let role = userData.value(forKey: "role") as? NSObject;
                    let roleId = role?.value(forKey: "id") as! NSNumber;
                    
                    let state = userData.value(forKey: "state") as? NSObject;
                    let stateId = state?.value(forKey: "id") as! NSNumber;
                    
                    let topic = userData.value(forKey: "topic") as? NSObject;
                    let topicId = topic?.value(forKey: "id") as! NSNumber;
                    let username = userData.value(forKey: "username") as? String ?? "";
                    let appleUserIdentifier = userData.value(forKey: "appleUserIdentifier") as? String ?? "";
                    
                    
                    var userModel = [UserDetailsModel]()
                    let newUserModel = UserDetailsModel(accountExpired: Int(truncating: accountExpired), accountLocked: Int(truncating: accountLocked), dateCreated: dateCreated, dateOfBirth: dateOfBirth, districtId: Int(truncating: districtId), email: email, enabled: Int(truncating: enabled), gender: gender, id: Int(truncating: id), levelId: Int(truncating: levelId), mobile: mobile, name: name, password: password, passwordExpired: Int(truncating: passwordExpired), roleId: Int(truncating: roleId), stateId: Int(truncating: stateId), topicId: Int(truncating: topicId), username: username, appleIdentifier: appleUserIdentifier)
                    DBManager.sharedInstance.deleteFromDb(object: userModel)
                    userModel.append(newUserModel)
                    DBManager.sharedInstance.addData(objs: userModel)
                    let userModelDB = DBManager.sharedInstance.database.objects(UserDetailsModel.self)
                    print("user count")
                    print(userModelDB.count)
                    
                    //Navigate to Home
                    DispatchQueue.main.async {
                        //self.dismiss(animated: true, completion: nil)
                        let homeVC = self.storyboard?.instantiateViewController(withIdentifier:"DashboardViewController" ) as! DashboardViewController
                        self.navigationController?.pushViewController(homeVC, animated: true)
                    }
                case .failure(let error):
                    ActivityIndicator.stop()
                    print(error)
                    self.showToastMessage(message: Helper.translateText(inputText: "Failed to update profile data, please try again later"))
                }
            }
        }
    }
}

extension UserDetailsViewController : UserDetailsViewProtocol {
    func showAlert(title: String, message: String) {
        Alert.showAlert(on: self, with: title, message: message)
    }
    
    func stopActivityIndicator() {
        //activityIndicator.stopAnimating()
    }
    
    func showToastMessage(message: String) {
        self.view.makeToast(message)
    }
}