package com.example.kinderapp.fragments

import android.content.Intent
import android.os.CountDownTimer
import android.preference.PreferenceManager
import android.view.View
import android.widget.TextView
import android.widget.Toast
import com.example.kinderapp.R
import kotlinx.android.synthetic.main.fragment_math.*
import java.util.*
import kotlin.collections.ArrayList

class MathFragment:BaseFragment(R.layout.fragment_math) {

    private var Question: TextView? = null
    private var textViewTimer: TextView? = null
    private var textViewScore: TextView? = null
    private var textViewOpinion0: TextView? = null
    private var textViewOpinion1: TextView? = null
    private var textViewOpinion2: TextView? = null
    private var textViewOpinion3: TextView? = null
    private val options = ArrayList<TextView>()

    private var question: String? = null
    private var rightAnswer: Int = 0
    private var rightAnswerPosition: Int = 0
    private var isPositive: Boolean = false
    private val min = 5
    private val max = 30
    private var countOfQuestions = 0
    private var countOfRightAnswers = 0
    private var gameOver = false


    override fun onCreate() {
         textViewTimer = timer
        textViewOpinion0 = textViewOpinion0
        textViewOpinion1 = textViewOpinion1
        textViewOpinion2 = textViewOpinion2
        textViewOpinion3 = textViewOpinion3
        Question = questions
        textViewScore = score
        playNext()
        val timer = object : CountDownTimer(60000, 1000) {
            override fun onTick(millisUntilFinished: Long) {
                textViewTimer!!.text = getTime(millisUntilFinished)
                if (millisUntilFinished < 10000) {
                    textViewTimer!!.setTextColor(resources.getColor(android.R.color.holo_red_light))
                }
            }

            override fun onFinish() {
                gameOver = true
                val preferences = PreferenceManager.getDefaultSharedPreferences(view?.context)
                val max = preferences.getInt("max", 0)
                if (countOfRightAnswers >= max) {
                    preferences.edit().putInt("max", countOfRightAnswers).apply()
                }
                val intent : Intent?=null
                intent!!.putExtra("result", countOfRightAnswers)
                startActivity(intent)
            }
        }
        timer.start()
    }

    private fun playNext() {
        generateQuestion()
        for (i in options.indices) {
            if (i == rightAnswerPosition) {
                options[i].text = Integer.toString(rightAnswer)
            } else {
                options[i].text = Integer.toString(generateWrongAnswer())
            }
        }
        val score = String.format("%s / %s", countOfRightAnswers, countOfQuestions)
        textViewScore!!.setText(score)
    }

    private fun generateQuestion() {
        val a = (Math.random() * (max - min + 1) + min).toInt()
        val b = (Math.random() * (max - min + 1) + min).toInt()
        val mark = (Math.random() * 2).toInt()
        isPositive = mark == 1
        if (isPositive) {
            rightAnswer = a + b
            question = String.format("%s + %s", a, b)
        } else {
            rightAnswer = a - b
            question = String.format("%s - %s", a, b)
        }
        Question!!.text = question
        rightAnswerPosition = (Math.random() * 4).toInt()
    }

    private fun generateWrongAnswer(): Int {
        var result: Int
        do {
            result = (Math.random() * max.toDouble() * 2.0 + 1).toInt() - (max - min)
        } while (result == rightAnswer)
        return result
    }

    private fun getTime(millis: Long): String {
        var seconds = (millis / 1000).toInt()
        val minutes = seconds / 60
        seconds = seconds % 60
        return String.format(Locale.getDefault(), "%02d:%02d", minutes, seconds)
    }

    fun onClickAnswer(view: View) {
        if (!gameOver) {
            val textView = view as TextView
            val answer = textView.text.toString()
            val chosenAnswer = Integer.parseInt(answer)
            if (chosenAnswer == rightAnswer) {
                countOfRightAnswers++
                Toast.makeText(view.context, "Верно", Toast.LENGTH_SHORT).show()
            } else {
                Toast.makeText(view.context, "Неверно", Toast.LENGTH_SHORT).show()
            }
            countOfQuestions++
            playNext()
        }
    }


    }