package com.example.arithmetic2klass

import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import kotlinx.android.synthetic.main.activity_main.*
import kotlinx.android.synthetic.main.num_dialog.view.*
import kotlin.random.Random
import android.widget.Toast
import kotlin.system.exitProcess
import android.app.AlertDialog
import android.view.LayoutInflater
import android.view.View


class MainActivity : AppCompatActivity() {

    var totalRightAnswers=0
    var rightAnswersCounter=0
    var rightAnswersStrInit="Правильных ответов: "
    var rightAnswersStr:String=""
    var wrongAnswersCounter:Int=0
    var wrongAnswersStrInit="Ошибочных ответов: "
    var wrongAnswersStr:String=""
    var rnd=Random
    var type=Random
    var txt:String=""
    var rightAns:String=""
    var userAns:String=""
    var testComplete=false



    fun firstDialog()
    {
        val mDialogView = LayoutInflater.from(this).inflate(R.layout.num_dialog, null)
        val mBuilder = AlertDialog.Builder(this)
            .setView(mDialogView)
            .setTitle("Количество заданий в тесте:")
        val  mAlertDialog = mBuilder.show()
        mDialogView.dialogStartBtn.setOnClickListener {
            mAlertDialog.dismiss()
            var a = mDialogView.dialogNumQuest.text.toString()
            totalRightAnswers=a.toInt()
            helpText.text="В тесте "+totalRightAnswers+" вопросов, за каждый неправильный ответ добавляется 1 вопрос"
        }
    }


    fun RefreshStats()
    {
        rightAnswersStr=rightAnswersStrInit+rightAnswersCounter.toString()
        pos_result.text=rightAnswersStr
        wrongAnswersStr=wrongAnswersStrInit+wrongAnswersCounter.toString()
        neg_result.text=wrongAnswersStr
    }


    fun newTask()
    {
        var taskType=type.nextInt(until = 3)
        editText1.text.clear()

        //умножение
        if (taskType==0) {
            var arg1 = rnd.nextInt(11)
            var arg2 = rnd.nextInt(11)
            rightAns = (arg1 * arg2).toString()
            txt = arg1.toString() + "*" + arg2.toString()
        }

        //вычитание
        if (taskType==1) {
            var arg1 = rnd.nextInt(100)
            var arg2 = rnd.nextInt(100)
            rightAns = (arg1 + arg2).toString()
            txt = arg1.toString() + "+" + arg2.toString()
        }

        //вычитание
        if (taskType==2) {
            var arg1 = rnd.nextInt(50)
            var arg2 = rnd.nextInt(50)
            if (arg1>arg2) {
                rightAns = (arg1 - arg2).toString()
                txt = arg1.toString() + "-" + arg2.toString()
            }
            if ((arg2>arg1)||(arg2==arg1)) {
                rightAns = (arg2 - arg1).toString()
                txt = arg2.toString() + "-" + arg1.toString()
            }
        }

        hellotextview.text = txt

    }


    override fun onCreate(savedInstanceState: Bundle?) {

        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        firstDialog()

        newTask()
        editText1.setOnClickListener()
        {
            userAns = editText1.text.toString()
            if (userAns != "") {
                if (userAns == rightAns) {
                    Toast.makeText(this, "Правильно!", Toast.LENGTH_LONG).show()
                }
                if (userAns != rightAns) {
                    Toast.makeText(this, "Ошибка!", Toast.LENGTH_LONG).show()
                    wrongAnswersCounter++
                    totalRightAnswers++
                    RefreshStats()
                }
                if (userAns == rightAns) {
                    rightAnswersCounter++
                    RefreshStats()
                    newTask()
                }
            }
            if (rightAnswersCounter==totalRightAnswers)
            {
                Toast.makeText(this, "Ты выполнил задание!", Toast.LENGTH_LONG).show()
                testComplete=true
            }
        }
    }

    fun  exitIfComplete (view: View)
    {
        if (testComplete) exitProcess(0)
    }


}