/*
 * Nextcloud Talk application
 *
 * @author Mario Danic
 * Copyright (C) 2017-2018 Mario Danic <mario@lovelyhq.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.nextcloud.talk.controllers

import android.content.Intent
import android.graphics.drawable.Drawable
import android.graphics.drawable.LayerDrawable
import android.os.Bundle
import android.text.TextUtils
import android.view.LayoutInflater
import android.view.MenuItem
import android.view.View
import android.view.ViewGroup
import android.widget.ImageView
import android.widget.ProgressBar
import android.widget.TextView
import androidx.appcompat.widget.SwitchCompat
import androidx.emoji.widget.EmojiTextView
import androidx.recyclerview.widget.RecyclerView
import androidx.work.Data
import androidx.work.OneTimeWorkRequest
import androidx.work.WorkManager
import autodagger.AutoInjector
import butterknife.BindView
import butterknife.OnClick
import coil.api.load
import coil.transform.CircleCropTransformation
import com.afollestad.materialdialogs.LayoutMode.WRAP_CONTENT
import com.afollestad.materialdialogs.MaterialDialog
import com.afollestad.materialdialogs.bottomsheets.BottomSheet
import com.afollestad.materialdialogs.datetime.dateTimePicker
import com.bluelinelabs.conductor.RouterTransaction
import com.bluelinelabs.conductor.changehandler.HorizontalChangeHandler
import com.nextcloud.talk.R
import com.nextcloud.talk.R.string
import com.nextcloud.talk.adapters.items.UserItem
import com.nextcloud.talk.api.NcApi
import com.nextcloud.talk.application.NextcloudTalkApplication
import com.nextcloud.talk.controllers.base.BaseController
import com.nextcloud.talk.controllers.bottomsheet.items.BasicListItemWithImage
import com.nextcloud.talk.controllers.bottomsheet.items.listItemsWithImage
import com.nextcloud.talk.events.EventStatus
import com.nextcloud.talk.interfaces.ConversationInfoInterface
import com.nextcloud.talk.jobs.DeleteConversationWorker
import com.nextcloud.talk.jobs.LeaveConversationWorker
import com.nextcloud.talk.models.json.conversations.Conversation
import com.nextcloud.talk.models.json.conversations.Conversation.ConversationType
import com.nextcloud.talk.models.json.conversations.Conversation.ConversationType.GROUP_CONVERSATION
import com.nextcloud.talk.models.json.conversations.Conversation.ConversationType.ONE_TO_ONE_CONVERSATION
import com.nextcloud.talk.models.json.conversations.Conversation.ConversationType.PUBLIC_CONVERSATION
import com.nextcloud.talk.models.json.conversations.Conversation.ConversationType.SYSTEM_CONVERSATION
import com.nextcloud.talk.models.json.conversations.RoomOverall
import com.nextcloud.talk.models.json.converters.EnumNotificationLevelConverter
import com.nextcloud.talk.models.json.generic.GenericOverall
import com.nextcloud.talk.models.json.participants.Participant
import com.nextcloud.talk.models.json.participants.ParticipantsOverall
import com.nextcloud.talk.newarch.local.models.UserNgEntity
import com.nextcloud.talk.newarch.local.models.getCredentials
import com.nextcloud.talk.utils.ApiUtils
import com.nextcloud.talk.utils.DateUtils
import com.nextcloud.talk.utils.DisplayUtils
import com.nextcloud.talk.utils.ShareUtils
import com.nextcloud.talk.utils.bundle.BundleKeys
import com.nextcloud.talk.utils.database.user.UserUtils
import com.nextcloud.talk.utils.preferences.preferencestorage.DatabaseStorageModule
import com.nextcloud.talk.utils.ui.MaterialPreferenceCategoryWithRightLink
import com.yarolegovich.lovelydialog.LovelySaveStateHandler
import com.yarolegovich.lovelydialog.LovelyStandardDialog
import com.yarolegovich.mp.MaterialChoicePreference
import com.yarolegovich.mp.MaterialEditTextPreference
import com.yarolegovich.mp.MaterialPreferenceCategory
import com.yarolegovich.mp.MaterialPreferenceScreen
import com.yarolegovich.mp.MaterialStandardPreference
import com.yarolegovich.mp.MaterialSwitchPreference
import eu.davidea.flexibleadapter.FlexibleAdapter
import eu.davidea.flexibleadapter.common.SmoothScrollLinearLayoutManager
import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
import io.reactivex.Observer
import io.reactivex.android.schedulers.AndroidSchedulers
import io.reactivex.disposables.Disposable
import io.reactivex.schedulers.Schedulers
import org.greenrobot.eventbus.Subscribe
import org.greenrobot.eventbus.ThreadMode
import java.util.ArrayList
import java.util.Calendar
import javax.inject.Inject

@AutoInjector(NextcloudTalkApplication::class)
class ConversationInfoController(args: Bundle) : BaseController(),
    FlexibleAdapter.OnItemClickListener, ConversationInfoInterface {

  override fun conversationNameSet(name: String?) {
    conversationDisplayName.post {
      conversationDisplayName.text = name
    }
  }

  override fun passwordSet(isCleared: Boolean) {
    passwordAction.post {
      if (!isCleared) {
        passwordAction.setSummary(context.getString(string.nc_password_redacted))
      } else {
        passwordAction.setSummary(context.getString(string.nc_manual))
      }
    }
  }

  @BindView(R.id.notification_settings)
  lateinit var notificationsPreferenceScreen: MaterialPreferenceScreen
  @BindView(R.id.progressBar)
  lateinit var progressBar: ProgressBar
  @BindView(R.id.conversation_info_message_notifications)
  lateinit var messageNotificationLevel: MaterialChoicePreference
  @BindView(R.id.webinar_settings)
  lateinit var conversationInfoWebinar: MaterialPreferenceScreen
  @BindView(R.id.conversation_info_lobby)
  lateinit var conversationInfoLobby: MaterialSwitchPreference
  @BindView(R.id.conversation_info_name)
  lateinit var nameCategoryView: MaterialPreferenceCategory
  @BindView(R.id.start_time_preferences)
  lateinit var startTimeView: MaterialStandardPreference
  @BindView(R.id.avatar_image)
  lateinit var conversationAvatarImageView: ImageView
  @BindView(R.id.display_name_text)
  lateinit var conversationDisplayName: EmojiTextView
  @BindView(R.id.participants_list_category)
  lateinit var participantsListCategory: MaterialPreferenceCategoryWithRightLink
  @BindView(R.id.recyclerView)
  lateinit var recyclerView: RecyclerView
  @BindView(R.id.deleteConversationAction)
  lateinit var deleteConversationAction: MaterialStandardPreference
  @BindView(R.id.leaveConversationAction)
  lateinit var leaveConversationAction: MaterialStandardPreference
  @BindView(R.id.ownOptions)
  lateinit var ownOptionsCategory: MaterialPreferenceCategory
  @BindView(R.id.muteCalls)
  lateinit var muteCalls: MaterialSwitchPreference
  @BindView(R.id.mpc_action)
  lateinit var actionTextView: TextView
  @BindView(R.id.generalConversationOptions)
  lateinit var generalConversationOptions: MaterialPreferenceScreen
  @BindView(R.id.changeConversationName)
  lateinit var changeConversationName: MaterialEditTextPreference
  @BindView(R.id.favoriteConversationAction)
  lateinit var favoriteConversationAction: MaterialSwitchPreference
  @BindView(R.id.allowGuestsAction)
  lateinit var allowGuestsAction: MaterialSwitchPreference
  @BindView(R.id.passwordAction)
  lateinit var passwordAction: MaterialEditTextPreference
  @BindView(R.id.shareAction)
  lateinit var shareAction: MaterialStandardPreference

  @set:Inject
  lateinit var ncApi: NcApi
  @set:Inject
  lateinit var userUtils: UserUtils

  private val conversationToken: String?
  private val conversationUser: UserNgEntity?
  private val credentials: String?
  private var roomDisposable: Disposable? = null
  private var participantsDisposable: Disposable? = null

  private var databaseStorageModule: DatabaseStorageModule? = null
  private var conversation: Conversation? = null

  private var adapter: FlexibleAdapter<AbstractFlexibleItem<*>>? = null
  private var recyclerViewItems: MutableList<AbstractFlexibleItem<*>> = ArrayList()

  private var saveStateHandler: LovelySaveStateHandler? = null

  private val workerData: Data?
    get() {
      if (!TextUtils.isEmpty(conversationToken) && conversationUser != null) {
        val data = Data.Builder()
        data.putString(BundleKeys.KEY_ROOM_TOKEN, conversationToken)
        data.putLong(BundleKeys.KEY_INTERNAL_USER_ID, conversationUser.id)
        return data.build()
      }

      return null
    }

  init {
    setHasOptionsMenu(true)
    NextcloudTalkApplication.sharedApplication?.componentApplication?.inject(this)
    conversationUser = args.getParcelable(BundleKeys.KEY_USER_ENTITY)
    conversationToken = args.getString(BundleKeys.KEY_ROOM_TOKEN)
    credentials = ApiUtils.getCredentials(conversationUser!!.username, conversationUser.token)
  }

  override fun onOptionsItemSelected(item: MenuItem): Boolean {
    when (item.itemId) {
      android.R.id.home -> {
        router.popCurrentController()
        return true
      }
      else -> return super.onOptionsItemSelected(item)
    }
  }

  override fun inflateView(
    inflater: LayoutInflater,
    container: ViewGroup
  ): View {
    return inflater.inflate(R.layout.controller_conversation_info, container, false)
  }

  override fun onDetach(view: View) {
    eventBus.unregister(this)
    super.onDetach(view)
  }

  override fun onAttach(view: View) {
    super.onAttach(view)
    eventBus.register(this)

    fetchRoomInfo()
  }

  override fun onViewBound(view: View) {
    super.onViewBound(view)

    if (saveStateHandler == null) {
      saveStateHandler = LovelySaveStateHandler()
    }

    if (databaseStorageModule == null) {
      databaseStorageModule = DatabaseStorageModule(
          conversationUser!!, conversationToken!!, this)
    }

    notificationsPreferenceScreen.setStorageModule(databaseStorageModule)
    conversationInfoWebinar.setStorageModule(databaseStorageModule)
    generalConversationOptions.setStorageModule(databaseStorageModule)

    actionTextView.visibility = View.GONE
  }

  private fun setupWebinaryView() {
    if (conversationUser!!.hasSpreedFeatureCapability("webinary-lobby") && (conversation!!.type
            == Conversation.ConversationType.GROUP_CONVERSATION || conversation!!.type ==
            PUBLIC_CONVERSATION) && conversation!!.canModerate(
            conversationUser
        )
    ) {
      conversationInfoWebinar.visibility = View.VISIBLE

      val isLobbyOpenToModeratorsOnly =
        conversation!!.lobbyState == Conversation.LobbyState.LOBBY_STATE_MODERATORS_ONLY
      (conversationInfoLobby.findViewById<View>(R.id.mp_checkable) as SwitchCompat)
          .isChecked = isLobbyOpenToModeratorsOnly

      reconfigureLobbyTimerView()

      startTimeView.setOnClickListener {
        MaterialDialog(activity!!, BottomSheet(WRAP_CONTENT)).show {
          val currentTimeCalendar = Calendar.getInstance()
          if (conversation != null && conversation!!.lobbyTimer != null && conversation!!.lobbyTimer != 0L) {
            currentTimeCalendar.timeInMillis = conversation!!.lobbyTimer!! * 1000
          }

          dateTimePicker(minDateTime = Calendar.getInstance(), requireFutureDateTime =
          true, currentDateTime = currentTimeCalendar, dateTimeCallback = { _,
            dateTime ->
            reconfigureLobbyTimerView(dateTime)
            submitLobbyChanges()
          })
        }
      }

      (conversationInfoLobby.findViewById<View>(
          R.id.mp_checkable
      ) as SwitchCompat).setOnCheckedChangeListener { _, _ ->
        reconfigureLobbyTimerView()
        submitLobbyChanges()
      }
    } else {
      conversationInfoWebinar.visibility = View.GONE
    }
  }

  fun reconfigureLobbyTimerView(dateTime: Calendar? = null) {
    val isChecked =
      (conversationInfoLobby.findViewById<View>(R.id.mp_checkable) as SwitchCompat).isChecked

    if (dateTime != null && isChecked) {
      conversation!!.lobbyTimer = (dateTime.timeInMillis - (dateTime.time.seconds * 1000)) / 1000
    } else if (!isChecked) {
      conversation!!.lobbyTimer = 0
    }

    conversation!!.lobbyState = if (isChecked) Conversation.LobbyState
        .LOBBY_STATE_MODERATORS_ONLY else Conversation.LobbyState.LOBBY_STATE_ALL_PARTICIPANTS

    if (conversation!!.lobbyTimer != null && conversation!!.lobbyTimer != java.lang.Long.MIN_VALUE && conversation!!.lobbyTimer != 0L) {
      startTimeView.setSummary(
          conversation!!.lobbyTimer?.let { DateUtils.getLocalDateStringFromTimestampForLobby(it) }
      )
    } else {
      startTimeView.setSummary(R.string.nc_manual)
    }

    if (isChecked) {
      startTimeView.visibility = View.VISIBLE
    } else {
      startTimeView.visibility = View.GONE
    }
  }

  fun submitGuestChange() {
    if (databaseStorageModule != null && conversationUser != null && conversation != null) {
      if ((allowGuestsAction.findViewById<View>(R.id.mp_checkable) as SwitchCompat).isChecked) {
        ncApi.makeRoomPublic(conversationUser.getCredentials(), ApiUtils.getUrlForRoomVisibility
        (conversationUser.baseUrl, conversation!!.token))
            .subscribeOn(Schedulers.io())
            .observeOn(AndroidSchedulers.mainThread())
            .subscribe(object : Observer<GenericOverall> {
              override fun onComplete() {
              }

              override fun onSubscribe(d: Disposable) {
              }

              override fun onNext(t: GenericOverall) {
              }

              override fun onError(e: Throwable) {
              }
            })
      } else {
        ncApi.makeRoomPrivate(conversationUser.getCredentials(), ApiUtils.getUrlForRoomVisibility
        (conversationUser.baseUrl, conversation!!.token))
            .subscribeOn(Schedulers.io())
            .observeOn(AndroidSchedulers.mainThread())
            .subscribe(object : Observer<GenericOverall> {
              override fun onComplete() {
              }

              override fun onSubscribe(d: Disposable) {
              }

              override fun onNext(t: GenericOverall) {
              }

              override fun onError(e: Throwable) {
              }
            })
      }
    }
  }

  fun submitFavoriteChange() {
    if (databaseStorageModule != null && conversationUser != null && conversation != null) {
      if ((favoriteConversationAction.findViewById<View>(R.id.mp_checkable) as SwitchCompat).isChecked) {
        ncApi.addConversationToFavorites(conversationUser.getCredentials(), ApiUtils
            .getUrlForConversationFavorites(conversationUser.baseUrl, conversation!!.token))
            .subscribeOn(Schedulers.io())
            .observeOn(AndroidSchedulers.mainThread())
            .subscribe(object : Observer<GenericOverall> {
              override fun onComplete() {
              }

              override fun onSubscribe(d: Disposable) {
              }

              override fun onNext(t: GenericOverall) {
              }

              override fun onError(e: Throwable) {
              }

            })
      } else {
        ncApi.removeConversationFromFavorites(conversationUser.getCredentials(), ApiUtils
            .getUrlForConversationFavorites(conversationUser.baseUrl, conversation!!.token))
            .subscribeOn(Schedulers.io())
            .observeOn(AndroidSchedulers.mainThread())
            .subscribe(object : Observer<GenericOverall> {
              override fun onComplete() {
              }

              override fun onSubscribe(d: Disposable) {
              }

              override fun onNext(t: GenericOverall) {
              }

              override fun onError(e: Throwable) {
              }

            })
      }
    }
  }
  fun submitLobbyChanges() {
    val state = if ((conversationInfoLobby.findViewById<View>(
            R.id
                .mp_checkable
        ) as SwitchCompat).isChecked
    ) 1 else 0
    ncApi.setLobbyForConversation(
        ApiUtils.getCredentials(
            conversationUser!!.username,
            conversationUser.token
        ), ApiUtils.getUrlForLobbyForConversation
    (conversationUser.baseUrl, conversation!!.token), state, conversation!!.lobbyTimer
    )
        .subscribeOn(Schedulers.io())
        .observeOn(AndroidSchedulers.mainThread())
        .subscribe(object : Observer<GenericOverall> {
          override fun onComplete() {
          }

          override fun onSubscribe(d: Disposable) {
          }

          override fun onNext(t: GenericOverall) {
          }

          override fun onError(e: Throwable) {
          }

        })
  }

  private fun showLovelyDialog(
    dialogId: Int,
    savedInstanceState: Bundle
  ) {
    when (dialogId) {
      ID_DELETE_CONVERSATION_DIALOG -> showDeleteConversationDialog(savedInstanceState)
      else -> {
      }
    }
  }

  @Subscribe(threadMode = ThreadMode.MAIN)
  fun onMessageEvent(eventStatus: EventStatus) {
    getListOfParticipants()
  }

  private fun showDeleteConversationDialog(savedInstanceState: Bundle?) {
    if (activity != null) {
      LovelyStandardDialog(activity, LovelyStandardDialog.ButtonLayout.HORIZONTAL)
          .setTopColorRes(R.color.nc_darkRed)
          .setIcon(
              DisplayUtils.getTintedDrawable(
                  context.resources,
                  R.drawable.ic_delete_black_24dp, R.color.bg_default
              )
          )
          .setPositiveButtonColor(context.resources.getColor(R.color.nc_darkRed))
          .setTitle(R.string.nc_delete_call)
          .setMessage(conversation!!.deleteWarningMessage)
          .setPositiveButton(R.string.nc_delete) { deleteConversation() }
          .setNegativeButton(R.string.nc_cancel, null)
          .setInstanceStateHandler(ID_DELETE_CONVERSATION_DIALOG, saveStateHandler!!)
          .setSavedInstanceState(savedInstanceState)
          .show()
    }
  }

  override fun onSaveViewState(
    view: View,
    outState: Bundle
  ) {
    saveStateHandler!!.saveInstanceState(outState)
    super.onSaveViewState(view, outState)
  }

  override fun onRestoreViewState(
    view: View,
    savedViewState: Bundle
  ) {
    super.onRestoreViewState(view, savedViewState)
    if (LovelySaveStateHandler.wasDialogOnScreen(savedViewState)) {
      //Dialog won't be restarted automatically, so we need to call this method.
      //Each dialog knows how to restore its viewState
      showLovelyDialog(LovelySaveStateHandler.getSavedDialogId(savedViewState), savedViewState)
    }
  }

  private fun setupAdapter() {
    if (activity != null) {
      if (adapter == null) {
        adapter = FlexibleAdapter(recyclerViewItems, activity, true)
      }

      val layoutManager = SmoothScrollLinearLayoutManager(activity)
      recyclerView.layoutManager = layoutManager
      recyclerView.setHasFixedSize(true)
      recyclerView.adapter = adapter

      adapter!!.addListener(this)
      actionTextView.setOnClickListener {
        val bundle = Bundle()
        val existingParticipantsId = arrayListOf<String>()

        recyclerViewItems.forEach {
          val userItem = it as UserItem
          existingParticipantsId.add(userItem.model.userId)
        }

        bundle.putBoolean(BundleKeys.KEY_ADD_PARTICIPANTS, true)
        bundle.putStringArrayList(BundleKeys.KEY_EXISTING_PARTICIPANTS, existingParticipantsId)
        bundle.putString(BundleKeys.KEY_TOKEN, conversation!!.token)

        router.pushController(
            (RouterTransaction.with(ContactsController(bundle))
                .pushChangeHandler(HorizontalChangeHandler())
                .popChangeHandler(HorizontalChangeHandler()))
        )

      }
    }
  }

  private fun handleParticipants(participants: List<Participant>) {
    var userItem: UserItem
    var participant: Participant

    recyclerViewItems = ArrayList()
    var ownUserItem: UserItem? = null

    for (i in participants.indices) {
      participant = participants[i]
      userItem = UserItem(participant, conversationUser!!, null, activity!!)
      userItem.isOnline = !participant.sessionId.equals("0")
      if (!TextUtils.isEmpty(
              participant.userId
          ) && participant.userId == conversationUser.userId
      ) {
        ownUserItem = userItem
        ownUserItem.model.sessionId = "-1"
        ownUserItem.isOnline = true
      } else {
        recyclerViewItems.add(userItem)
      }
    }


    if (ownUserItem != null) {
      recyclerViewItems.add(0, ownUserItem)
    }

    setupAdapter()

    participantsListCategory.visibility = View.VISIBLE
    adapter!!.updateDataSet(recyclerViewItems)
  }

  override fun getTitle(): String? {
    return resources!!.getString(R.string.nc_conversation_menu_conversation_info)
  }

  private fun getListOfParticipants() {
    ncApi.getPeersForCall(
        credentials, ApiUtils.getUrlForParticipants(conversationUser!!.baseUrl, conversationToken)
    )
        .subscribeOn(Schedulers.io())
        .observeOn(AndroidSchedulers.mainThread())
        .subscribe(object : Observer<ParticipantsOverall> {
          override fun onSubscribe(d: Disposable) {
            participantsDisposable = d
          }

          override fun onNext(participantsOverall: ParticipantsOverall) {
            handleParticipants(participantsOverall.ocs.data)
          }

          override fun onError(e: Throwable) {

          }

          override fun onComplete() {
            participantsDisposable!!.dispose()
          }
        })

  }

  @OnClick(R.id.leaveConversationAction)
  fun leaveConversation() {
    workerData?.let {
      WorkManager.getInstance()
          .enqueue(
              OneTimeWorkRequest.Builder
              (
                  LeaveConversationWorker::class
                      .java
              ).setInputData(it).build()
          )
      popTwoLastControllers()
    }
  }

  private fun deleteConversation() {
    workerData?.let {
      WorkManager.getInstance()
          .enqueue(
              OneTimeWorkRequest.Builder
              (DeleteConversationWorker::class.java).setInputData(it).build()
          )
      popTwoLastControllers()
    }
  }

  @OnClick(R.id.deleteConversationAction)
  fun deleteConversationClick() {
    showDeleteConversationDialog(null)
  }

  private fun popTwoLastControllers() {
    var backstack = router.backstack
    backstack = backstack.subList(0, backstack.size - 2)
    router.setBackstack(backstack, HorizontalChangeHandler())
  }

  private fun fetchRoomInfo() {
    ncApi.getRoom(credentials, ApiUtils.getRoom(conversationUser!!.baseUrl, conversationToken))
        .subscribeOn(Schedulers.io())
        .observeOn(AndroidSchedulers.mainThread())
        .subscribe(object : Observer<RoomOverall> {
          override fun onSubscribe(d: Disposable) {
            roomDisposable = d
          }

          override fun onNext(roomOverall: RoomOverall) {
            conversation = roomOverall.ocs.data

            val conversationCopy = conversation


            if (isAttached && (!isBeingDestroyed || !isDestroyed)) {
              if (conversationCopy!!.canModerate(conversationUser)) {
                actionTextView.visibility = View.VISIBLE
              } else {
                actionTextView.visibility = View.GONE
              }

              ownOptionsCategory.visibility = View.VISIBLE

              setupGeneralSettings()
              setupWebinaryView()

              if (!conversation!!.canLeave(conversationUser)) {
                leaveConversationAction.visibility = View.GONE
              } else {
                leaveConversationAction.visibility = View.VISIBLE
              }

              if (!conversation!!.canModerate(conversationUser)) {
                deleteConversationAction.visibility = View.GONE
              } else {
                deleteConversationAction.visibility = View.VISIBLE
              }

              if (Conversation.ConversationType.SYSTEM_CONVERSATION == conversation!!.type) {
                muteCalls.visibility = View.GONE
              }

              getListOfParticipants()

              progressBar.visibility = View.GONE

              nameCategoryView.visibility = View.VISIBLE

              conversationDisplayName.text = conversation!!.displayName


              loadConversationAvatar()
              adjustNotificationLevelUI()

              notificationsPreferenceScreen.visibility = View.VISIBLE
            }
          }

          override fun onError(e: Throwable) {

          }

          override fun onComplete() {
            roomDisposable!!.dispose()
          }
        })
  }

  private fun setupGeneralSettings() {
    if (conversation != null && conversationUser != null) {
      changeConversationName.value = conversation!!.displayName

      if (conversation!!.isNameEditable(conversationUser)) {
        changeConversationName.visibility = View.VISIBLE
      } else {
        changeConversationName.visibility = View.GONE
      }

      favoriteConversationAction.value = conversation!!.favorite
      if (conversation!!.type!!.equals(ConversationType.ONE_TO_ONE_CONVERSATION) || conversation!!
              .type!!.equals(ConversationType.SYSTEM_CONVERSATION)) {
        allowGuestsAction.visibility = View.GONE
      } else {
        allowGuestsAction.value = conversation!!.type == PUBLIC_CONVERSATION
      }

      (allowGuestsAction.findViewById<View>(R.id.mp_checkable) as SwitchCompat)
          .isChecked = allowGuestsAction.value
      (favoriteConversationAction.findViewById<View>(R.id.mp_checkable) as SwitchCompat)
          .isChecked = favoriteConversationAction.value

      (favoriteConversationAction.findViewById<View>(R.id.mp_checkable) as SwitchCompat).setOnCheckedChangeListener { buttonView, isChecked ->
        submitFavoriteChange()
      }

      (allowGuestsAction.findViewById<View>(R.id.mp_checkable) as SwitchCompat).setOnCheckedChangeListener { buttonView, isChecked ->
        if (isChecked) {
          passwordAction.visibility = View.VISIBLE
          shareAction.visibility = View.VISIBLE
        } else {
          passwordAction.visibility = View.GONE
          shareAction.visibility = View.GONE
        }

        submitGuestChange()
      }

      shareAction.setOnClickListener {
        val sendIntent: Intent = Intent().apply {
          action = Intent.ACTION_SEND
          putExtra(
              Intent.EXTRA_SUBJECT,
              String.format(
                  context.getString(R.string.nc_share_subject),
                  context.getString(R.string.nc_app_name)
              )
          )

          putExtra(
              Intent.EXTRA_TEXT, ShareUtils.getStringForIntent(
              context, conversation!!.password,
              userUtils, conversation
          )
          )

          type = "text/plain"
        }

        val intent = Intent.createChooser(sendIntent, context.getString(string.nc_share_link))
        startActivity(intent)
      }

      if (allowGuestsAction.value) {
        passwordAction.visibility = View.VISIBLE
        shareAction.visibility = View.VISIBLE

        passwordAction.value = conversation!!.hasPassword.toString()
        if (conversation!!.hasPassword) {
          passwordAction.setSummary(context.getString(string.nc_password_redacted))
        } else {
          passwordAction.setSummary(context.getString(string.nc_manual))
        }
      } else {
        passwordAction.visibility = View.GONE
        shareAction.visibility = View.GONE
      }

    }
  }

  private fun adjustNotificationLevelUI() {
    if (conversation != null) {
      if (conversationUser != null && conversationUser.hasSpreedFeatureCapability(
              "notification-levels"
          )
      ) {
        messageNotificationLevel.isEnabled = true
        messageNotificationLevel.alpha = 1.0f

        if (conversation!!.notificationLevel != Conversation.NotificationLevel.DEFAULT) {
          val stringValue: String =
            when (EnumNotificationLevelConverter().convertToInt(conversation!!.notificationLevel)) {
              1 -> "always"
              2 -> "mention"
              3 -> "never"
              else -> "mention"
            }

          messageNotificationLevel.value = stringValue
        } else {
          setProperNotificationValue(conversation)
        }
      } else {
        messageNotificationLevel.isEnabled = false
        messageNotificationLevel.alpha = 0.38f
        setProperNotificationValue(conversation)
      }
    }
  }

  private fun setProperNotificationValue(conversation: Conversation?) {
    if (conversation!!.type == Conversation.ConversationType.ONE_TO_ONE_CONVERSATION) {
      // hack to see if we get mentioned always or just on mention
      if (conversationUser!!.hasSpreedFeatureCapability("mention-flag")) {
        messageNotificationLevel.value = "always"
      } else {
        messageNotificationLevel.value = "mention"
      }
    } else {
      messageNotificationLevel.value = "mention"
    }
  }

  private fun loadConversationAvatar() {
    when (conversation!!.type) {
      ONE_TO_ONE_CONVERSATION -> if (!TextUtils.isEmpty
          (conversation!!.name)
      ) {
        conversationAvatarImageView.load(ApiUtils.getUrlForAvatarWithName(
            conversationUser!!.baseUrl,
            conversation!!.name, R.dimen.avatar_size_big
        )) {
          transformations(CircleCropTransformation())
        }
      }
      GROUP_CONVERSATION -> {
        conversationAvatarImageView.load(R.drawable.ic_people_group_white_24px) {
          transformations(CircleCropTransformation())
        }
      }
      PUBLIC_CONVERSATION -> {
        conversationAvatarImageView.load(R.drawable.ic_link_white_24px) {
          transformations(CircleCropTransformation())
        }
      }

      SYSTEM_CONVERSATION -> {
        val layers = arrayOfNulls<Drawable>(2)
        layers[0] = context.getDrawable(R.drawable.ic_launcher_background)
        layers[1] = context.getDrawable(R.drawable.ic_launcher_foreground)
        val layerDrawable = LayerDrawable(layers)
        conversationAvatarImageView.load(layerDrawable) {
          transformations(CircleCropTransformation())
        }
      }

      else -> {
      }
    }
  }

  override fun onItemClick(
    view: View?,
    position: Int
  ): Boolean {
    val userItem = adapter?.getItem(position) as UserItem
    val participant = userItem.model


    if (participant.userId != conversationUser!!.userId) {
      var items = mutableListOf(
          BasicListItemWithImage(
              R.drawable.ic_pencil_grey600_24dp, context.getString(R.string.nc_promote)
          ),
          BasicListItemWithImage(
              R.drawable.ic_pencil_grey600_24dp, context.getString(R.string.nc_demote)
          ),
          BasicListItemWithImage(
              R.drawable.ic_delete_grey600_24dp,
              context.getString(R.string.nc_remove_participant)
          )
      )

      if (!conversation!!.canModerate(conversationUser)) {
        items = mutableListOf()
      } else {
        if (participant.type == Participant.ParticipantType.MODERATOR || participant.type == Participant.ParticipantType.OWNER) {
          items.removeAt(0)
        } else if (participant.type == Participant.ParticipantType.USER) {
          items.removeAt(1)
        }
      }


      if (items.isNotEmpty()) {
        MaterialDialog(activity!!, BottomSheet(WRAP_CONTENT)).show {
          cornerRadius(res = R.dimen.corner_radius)

          title(text = participant.displayName)
          listItemsWithImage(items = items) { dialog, index, _ ->

            if (index == 0) {
              if (participant.type == Participant.ParticipantType.MODERATOR) {
                ncApi.demoteModeratorToUser(
                    credentials,
                    ApiUtils.getUrlForModerators(conversationUser.baseUrl, conversation!!.token),
                    participant.userId
                )
                    .subscribeOn(Schedulers.io())
                    .observeOn(AndroidSchedulers.mainThread())
                    .subscribe {
                      getListOfParticipants()
                    }
              } else if (participant.type == Participant.ParticipantType.USER) {
                ncApi.promoteUserToModerator(
                    credentials,
                    ApiUtils.getUrlForModerators(conversationUser.baseUrl, conversation!!.token),
                    participant.userId
                )
                    .subscribeOn(Schedulers.io())
                    .observeOn(AndroidSchedulers.mainThread())
                    .subscribe {
                      getListOfParticipants()
                    }
              }
            } else if (index == 1) {
              if (participant.type == Participant.ParticipantType.GUEST ||
                  participant.type == Participant.ParticipantType.USER_FOLLOWING_LINK
              ) {
                ncApi.removeParticipantFromConversation(
                    credentials, ApiUtils.getUrlForRemovingParticipantFromConversation(
                    conversationUser.baseUrl, conversation!!.token, true
                ), participant.sessionId
                )
                    .subscribeOn(Schedulers.io())
                    .observeOn(AndroidSchedulers.mainThread())
                    .subscribe {
                      getListOfParticipants()
                    }

              } else {
                ncApi.removeParticipantFromConversation(
                    credentials, ApiUtils.getUrlForRemovingParticipantFromConversation(
                    conversationUser.baseUrl, conversation!!.token, false
                ), participant.userId
                )
                    .subscribeOn(Schedulers.io())
                    .observeOn(AndroidSchedulers.mainThread())
                    .subscribe {
                      getListOfParticipants()
                      // get participants again
                    }
              }
            }
          }
        }
      }
    }

    return true
  }

  companion object {

    private const val ID_DELETE_CONVERSATION_DIALOG = 0
  }
}