LoginFragment.kt

LoginFragment.kt

package de.comp.proj.androidApp.fragments.login

import android.content.DialogInterface
import android.os.Bundle
import android.view.*
import androidx.appcompat.app.AlertDialog
import androidx.databinding.DataBindingUtil
import androidx.fragment.app.Fragment
import androidx.lifecycle.Observer
import androidx.lifecycle.ViewModelProvider
import androidx.navigation.fragment.findNavController
import androidx.navigation.navGraphViewModels
import de.comp.proj.androidApp.R
import de.comp.proj.androidApp.databinding.FragmentLoginBinding
import de.comp.proj.shared.models.LoginModel
import dev.icerock.moko.mvvm.MvvmEventsFragment
import dev.icerock.moko.resources.desc.StringDesc
import org.koin.core.KoinComponent
import de.comp.proj.androidApp.BR
import dev.icerock.moko.mvvm.createViewModelFactory
import dev.icerock.moko.mvvm.dispatcher.eventsDispatcherOnMain

class LoginFragment : MvvmEventsFragment<FragmentLoginBinding, LoginModel, LoginModel.EventsListener>(), LoginModel.EventsListener, KoinComponent {
    protected val loginModel: LoginModel by navGraphViewModels(R.id.nav_graph)

    override val layoutId: Int = R.layout.fragment_login
    override val viewModelClass: Class<LoginModel> = LoginModel::class.java
    override val viewModelVariableId: Int = BR.viewModel


    override fun viewModelFactory(): ViewModelProvider.Factory {
        return createViewModelFactory {
            loginModel
        }
    }


    fun showErrorDialog(error: String){
        val dialogBuilder = AlertDialog.Builder(activity!!)
        val alert = dialogBuilder.setMessage(error)
            .setCancelable(false)
            .setPositiveButton(getString(R.string.ok)) { dialog, _ ->
                dialog.dismiss()

            }
            .create()

        alert.setTitle(getString(R.string.error))
        alert.show()
    }

    override fun navigateToDeviceList(username: String) {
        username.let {
            this.findNavController().navigate(LoginFragmentDirections.actionLoginFragmentToDeviceListFragment(it))
        }
    }

    override fun navigateToFavouritesList(url: String) {
        url.let {
            this.findNavController().navigate(LoginFragmentDirections.actionLoginFragmentToFavouriteListFragment(
                "https://$it"))
        }
    }


    override fun showError(error: StringDesc) {
        error.let {
            showErrorDialog(it.toString(activity!!))
        }
    }

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setHasOptionsMenu(true)
    }


    override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {
        super.onCreateOptionsMenu(menu, inflater)
        inflater.inflate(R.menu.options_menu, menu)
    }

}