116 lines
4.5 KiB
Kotlin
116 lines
4.5 KiB
Kotlin
package com.tarkvaraprojekt.mobileauthapp
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import android.os.Bundle
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import android.util.Log
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import android.view.LayoutInflater
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import android.view.View
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import android.view.ViewGroup
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import androidx.fragment.app.Fragment
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import androidx.fragment.app.activityViewModels
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import androidx.navigation.fragment.findNavController
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import com.tarkvaraprojekt.mobileauthapp.databinding.FragmentHomeBinding
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import com.tarkvaraprojekt.mobileauthapp.model.SmartCardViewModel
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/**
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* HomeFragment is only shown to the user when then the user launches the application. When the application
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* is launched by another application or a website then this Fragment will be skipped.
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* This fragment uses the fields from the MainActivity by casting the activity to MainActivity.
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* This might not be the best practice, but the application uses a single activity design so it should
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* always work.
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*/
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class HomeFragment : Fragment() {
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private val viewModel: SmartCardViewModel by activityViewModels()
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private var binding: FragmentHomeBinding? = null
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override fun onCreateView(
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inflater: LayoutInflater,
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container: ViewGroup?,
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savedInstanceState: Bundle?
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): View? {
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binding = FragmentHomeBinding.inflate(inflater, container, false)
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// Making settings menu active again
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(activity as MainActivity).menuAvailable = true
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return binding!!.root
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}
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override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
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super.onViewCreated(view, savedInstanceState)
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initialChecks()
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// TODO: If app launched with intent then go to the CanFragment immediately.
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val auth = requireActivity().intent.getBooleanExtra("auth", false)
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if (auth){ // Currently true for testing purposes
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goToTheNextFragment(true)
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}
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binding!!.beginButton.setOnClickListener { goToTheNextFragment() }
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}
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/**
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* Method where all the initial checks that should be done before any user input is accepted should be added.
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*/
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private fun initialChecks() {
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viewModel.checkCan(requireContext())
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viewModel.checkPin(requireContext())
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displayStates()
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}
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/**
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* Starts the process of interacting with the ID card by sending user to the CAN fragment.
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*/
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private fun goToTheNextFragment(auth: Boolean = false) {
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// Making settings menu inactive
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(activity as MainActivity).menuAvailable = false
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// Currently saving is true because the application is not yet integrated with
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// other applications or websites.
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// TODO: Check the navigation action default values. Not everything has to be declared implicitly.
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if (auth) {
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val action = HomeFragmentDirections.actionHomeFragmentToCanFragment(reading = false, auth = true)
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findNavController().navigate(action)
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} else {
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val action = HomeFragmentDirections.actionHomeFragmentToCanFragment(reading = true, auth = false)
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findNavController().navigate(action)
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}
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}
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/**
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* Displays texts that inform the user whether the CAN and PIN 1 are saved on the device or not.
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* This might help the user to save some time as checking menu is not necessary unless the user
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* wishes to make changes to the saved CAN or PIN 1.
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*/
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private fun displayStates() {
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canState()
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pinState()
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}
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/**
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* Checks the state of the CAN, saved or not saved. Updates the text and logo.
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*/
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private fun canState() {
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if (viewModel.userCan.length == 6) {
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binding!!.canStatusText.text = getString(R.string.can_status_saved)
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binding!!.canStatusLogo.setImageResource(R.drawable.ic_check_logo)
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} else {
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binding!!.canStatusText.text = getString(R.string.can_status_negative)
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binding!!.canStatusLogo.setImageResource(R.drawable.ic_info_logo)
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}
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}
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/**
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* Checks the state of the PIN 1, saved or not saved. Updates the text and logo.
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*/
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private fun pinState() {
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if (viewModel.userPin.length in 4..12) {
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binding!!.pinStatusText.text = getString(R.string.pin_status_saved)
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binding!!.pinStatusLogo.setImageResource(R.drawable.ic_check_logo)
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} else {
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binding!!.pinStatusText.text = getString(R.string.pin_status_negative)
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binding!!.pinStatusLogo.setImageResource(R.drawable.ic_info_logo)
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}
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}
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override fun onDestroyView() {
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super.onDestroyView()
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binding = null
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}
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} |