package com.rahulsinghkamboj.android.quizappkotlin

import android.content.DialogInterface
import android.os.Bundle
import android.support.v7.app.AlertDialog
import android.support.v7.app.AppCompatActivity
import android.view.LayoutInflater
import android.view.View
import android.widget.Button
import android.widget.Toast

import com.google.firebase.database.DataSnapshot
import com.google.firebase.database.DatabaseError
import com.google.firebase.database.DatabaseReference
import com.google.firebase.database.FirebaseDatabase
import com.google.firebase.database.ValueEventListener
import com.rahulsinghkamboj.android.quizappkotlin.Model.User
import com.rengwuxian.materialedittext.MaterialEditText

class SplashActivity : AppCompatActivity() {

    internal var edtNewUser: MaterialEditText
    internal var edtNewPassword: MaterialEditText
    internal var edtNewEmail: MaterialEditText //for sign Up
    internal var edtUser: MaterialEditText
    internal var edtPassword: MaterialEditText //for sign in

    internal var btnSignUp: Button
    internal var btnSignIn: Button

    internal var database: FirebaseDatabase
    internal var users: DatabaseReference

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_splash)

        //Firebase

        database = FirebaseDatabase.getInstance()
        users = database.getReference("Users")

        edtUser = findViewById(R.id.edtUser) as MaterialEditText
        edtPassword = findViewById(R.id.edtPassword) as MaterialEditText

        btnSignIn = findViewById(R.id.btn_sign_in) as Button

        btnSignUp = findViewById(R.id.btn_sign_up) as Button

        btnSignUp.setOnClickListener { showSignUpDialog() }

        btnSignIn.setOnClickListener { signIn(edtUser.text.toString(), edtPassword.text.toString()) }


    }

    private fun signIn(user: String, pwd: String) {
        users.addListenerForSingleValueEvent(object : ValueEventListener {
            override fun onDataChange(dataSnapshot: DataSnapshot) {
                if (dataSnapshot.child(user).exists()) {
                    if (!user.isEmpty()) {
                        val login = dataSnapshot.child(user).getValue<User>(User::class.java)
                        if (login.getPassword() == pwd)
                            Toast.makeText(this@SplashActivity, "Login Success", Toast.LENGTH_SHORT).show()
                        else
                            Toast.makeText(this@SplashActivity, "Wrong password", Toast.LENGTH_SHORT).show()
                    } else {
                        Toast.makeText(this@SplashActivity, "Please Enter Username", Toast.LENGTH_SHORT).show()

                    }
                } else
                    Toast.makeText(this@SplashActivity, "User doesn't exists", Toast.LENGTH_SHORT).show()
            }

            override fun onCancelled(databaseError: DatabaseError) {

            }
        })


    }


    private fun showSignUpDialog() {
        val alertDialog = AlertDialog.Builder(this@SplashActivity)
        alertDialog.setTitle("Sign Up")


        val inflater = this.layoutInflater
        val sign_up_layout = inflater.inflate(R.layout.sign_up_layout, null)

        edtNewUser = sign_up_layout.findViewById<View>(R.id.edtNewUserName) as MaterialEditText
        edtNewEmail = sign_up_layout.findViewById<View>(R.id.edtNewEmail) as MaterialEditText
        edtNewPassword = sign_up_layout.findViewById<View>(R.id.edtNewPassword) as MaterialEditText

        alertDialog.setView(sign_up_layout)
        alertDialog.setIcon(R.drawable.ic_account_circle_black_24dp)


        alertDialog.setNegativeButton("No") { dialogInterface, i -> dialogInterface.dismiss() }

        alertDialog.setPositiveButton("Yes") { dialogInterface, i ->
            val user = User(edtNewUser.text.toString(), edtNewPassword.text.toString(), edtNewEmail.text.toString())


            users.addListenerForSingleValueEvent(object : ValueEventListener {
                override fun onDataChange(dataSnapshot: DataSnapshot) {
                    if (dataSnapshot.child(user.userName).exists()) {
                        Toast.makeText(this@SplashActivity, "User Already Exists in Database", Toast.LENGTH_SHORT).show()
                    } else {
                        users.child(user.userName).setValue(user)
                        Toast.makeText(this@SplashActivity, "Registration Successful", Toast.LENGTH_SHORT).show()
                    }
                }

                override fun onCancelled(databaseError: DatabaseError) {

                }
            })

            dialogInterface.dismiss()
        }

        alertDialog.show()
    }


}