KotlinDialog

FeedBackDialog.kt

/**
 * Created by Yousef Nasr on 2018-Oct-11.
 * Email :you96m@gmail.com
 */

@SuppressLint("CheckResult")
class FeedBackDialog(context: Context?, var callback: (String?) -> Unit) : AppCompatDialog(context), FeedBackDialogAdapter.ItemClickListener {

    private val feedBackDao: FeedBackDao? by lazy { FeedBackDao() }
    private var options = RealmList<Feedback>()
    private var adapter = FeedBackDialogAdapter(options)

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.feedback_dialog)
        rvFeedback.adapter = adapter
        initListeners()
        srFeedback.setOnRefreshListener(this::getFeedbackOptions)
        loadOptions()
    }

    private fun initListeners() {
        adapter.setClickListener(this)

        btnFeedbackDialogConfirm?.setOnClickListener { _ ->
            val selectedOptions = options.filter { it.checked }
            if (selectedOptions.isNotEmpty()) {
                callback.invoke(selectedOptions[0]?.id)
                dismiss()
            } else {
                Toast.makeText(context, "Select an option to confirm", Toast.LENGTH_SHORT).show()
            }
        }

        btnFeedbackDialogDismiss?.setOnClickListener { _ ->
            callback.invoke(null)
            dismiss()
        }
    }

    private fun loadOptions() {
        Realm.getDefaultInstance()
                .where(Feedback::class.java)
                .findAll()
                .asFlowable()
                .subscribe {
                    options.clear()
                    options.addAll(it)
                    adapter.notifyDataSetChanged()
                    if (options.isEmpty())
                        getFeedbackOptions()
                }
    }

    private fun getFeedbackOptions() {
        progressBar.visibility = View.VISIBLE
        feedBackDao?.feedback()
                ?.observeOn(AndroidSchedulers.mainThread())
                ?.subscribeOn(Schedulers.io())
                ?.subscribe({
                    srFeedback.isRefreshing = false
                    progressBar.visibility = View.GONE
                    Realm.getDefaultInstance()
                            .executeTransaction { realm ->
                                realm.where(Feedback::class.java).findAll().deleteAllFromRealm()
                                realm.copyToRealmOrUpdate(it)
                            }

                }, {
                    it.cause?.message.isNullOrEmpty()
                })
    }

    override fun onItemClick(view: View, layoutPosition: Int) {
        adapter.options.forEach { it.checked = false }
        adapter.options.get(layoutPosition)?.checked = true
        btnFeedbackDialogConfirm.isEnabled = true
        btnFeedbackDialogConfirm.setTextColor(Color.parseColor("#EF882B"))
        adapter.notifyDataSetChanged()
    }
}