package com.example.mytipapp

import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.widget.Button
import android.widget.RadioGroup
import android.widget.Switch
import android.widget.TextView

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

        val calcButton: Button = findViewById(R.id.calculate_button)
        calcButton.setOnClickListener {
            calculateTip()
        }

    }

    private fun calculateTip() {
        val costTextview: TextView = findViewById(R.id.cost_of_service)
        val cost:Double = costTextview.text.toString().toDouble()
        val tipOptions:RadioGroup = findViewById(R.id.tip_options)
        val tipPercentage = when (tipOptions.checkedRadioButtonId) {
            R.id.percent20 -> 0.20
            R.id.percent15 -> 0.15
            else -> {0.10}
        }
        var tip = tipPercentage * cost

        val roundSwitch: Switch = findViewById(R.id.round_up_tip)
        if (roundSwitch.isChecked) {
            tip = kotlin.math.ceil(tip)
        }

        val resultTextview: TextView = findViewById(R.id.tip_result)
        resultTextview.text = tip.toString()

    }
}