challenge99_main

package com.example.proj_99

import android.graphics.drawable.Drawable
import android.media.Image
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.widget.*
import kotlin.random.Random

class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        // init
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        // Code this
        val calc = findViewById<Button>(R.id.calc)
        val retry = findViewById<Button>(R.id.retry)
        val multiplicand = findViewById<TextView>(R.id.multiplicand)
        val multiplier = findViewById<TextView>(R.id.multiplier)
        val result = findViewById<TextView>(R.id.result)
        val input = findViewById<EditText>(R.id.input)
        val image = findViewById<ImageView>(R.id.image)

        getNewQuestion(multiplicand, multiplier)

        calc.setOnClickListener {
            if (input.text.toString() != "" && input.text.toString()
                    .toInt() == multiplicand.text.toString().toInt() * multiplier.text.toString()
                    .toInt()
            ) {
                result.text = "恭喜你答對了"
                cleanTextChangeImage(image, input, "yes")
            } else {
                result.text = "答錯了，再算一次"
                cleanTextChangeImage(image, input, "no")
            }
        }

        retry.setOnClickListener {
            getNewQuestion(multiplicand, multiplier)
            cleanTextChangeImage(image, input,"qa")
            result.text = "?"
        }

    }

    fun getNewQuestion(multiplicand :TextView, multiplier :TextView) {
        multiplicand.text = Random.nextInt(1, 10).toString()
        multiplier.text = Random.nextInt(1, 10).toString()
    }

    fun cleanTextChangeImage(image :ImageView, input :EditText,id :String) {
        image.setImageResource(resources.getIdentifier(id, "drawable", packageName))
        input.text.clear()
    }
}