package org.thoughtcrime.securesms.components.settings.conversation

import android.content.Context
import android.content.Intent
import android.graphics.Color
import android.graphics.PorterDuff
import android.graphics.PorterDuffColorFilter
import android.graphics.Rect
import android.os.Bundle
import android.view.MenuItem
import android.view.View
import android.view.ViewGroup
import android.widget.TextView
import android.widget.Toast
import androidx.appcompat.widget.Toolbar
import androidx.core.content.ContextCompat
import androidx.core.view.doOnPreDraw
import androidx.fragment.app.viewModels
import androidx.navigation.Navigation
import androidx.recyclerview.widget.LinearLayoutManager
import androidx.recyclerview.widget.RecyclerView
import app.cash.exhaustive.Exhaustive
import com.google.android.material.dialog.MaterialAlertDialogBuilder
import com.google.android.material.snackbar.Snackbar
import org.thoughtcrime.securesms.AvatarPreviewActivity
import org.thoughtcrime.securesms.BlockUnblockDialog
import org.thoughtcrime.securesms.InviteActivity
import org.thoughtcrime.securesms.MediaPreviewActivity
import org.thoughtcrime.securesms.MuteDialog
import org.thoughtcrime.securesms.PushContactSelectionActivity
import org.thoughtcrime.securesms.R
import org.thoughtcrime.securesms.VerifyIdentityActivity
import org.thoughtcrime.securesms.components.AvatarImageView
import org.thoughtcrime.securesms.components.settings.DSLConfiguration
import org.thoughtcrime.securesms.components.settings.DSLSettingsAdapter
import org.thoughtcrime.securesms.components.settings.DSLSettingsFragment
import org.thoughtcrime.securesms.components.settings.DSLSettingsIcon
import org.thoughtcrime.securesms.components.settings.DSLSettingsText
import org.thoughtcrime.securesms.components.settings.NO_TINT
import org.thoughtcrime.securesms.components.settings.configure
import org.thoughtcrime.securesms.components.settings.conversation.preferences.AvatarPreference
import org.thoughtcrime.securesms.components.settings.conversation.preferences.BioTextPreference
import org.thoughtcrime.securesms.components.settings.conversation.preferences.ButtonStripPreference
import org.thoughtcrime.securesms.components.settings.conversation.preferences.GroupDescriptionPreference
import org.thoughtcrime.securesms.components.settings.conversation.preferences.InternalPreference
import org.thoughtcrime.securesms.components.settings.conversation.preferences.LargeIconClickPreference
import org.thoughtcrime.securesms.components.settings.conversation.preferences.LegacyGroupPreference
import org.thoughtcrime.securesms.components.settings.conversation.preferences.RecipientPreference
import org.thoughtcrime.securesms.components.settings.conversation.preferences.SharedMediaPreference
import org.thoughtcrime.securesms.components.settings.conversation.preferences.Utils.formatMutedUntil
import org.thoughtcrime.securesms.contacts.ContactsCursorLoader
import org.thoughtcrime.securesms.conversation.ConversationIntents
import org.thoughtcrime.securesms.groups.ParcelableGroupId
import org.thoughtcrime.securesms.groups.ui.GroupErrors
import org.thoughtcrime.securesms.groups.ui.GroupLimitDialog
import org.thoughtcrime.securesms.groups.ui.LeaveGroupDialog
import org.thoughtcrime.securesms.groups.ui.addmembers.AddMembersActivity
import org.thoughtcrime.securesms.groups.ui.addtogroup.AddToGroupsActivity
import org.thoughtcrime.securesms.groups.ui.invitesandrequests.ManagePendingAndRequestingMembersActivity
import org.thoughtcrime.securesms.groups.ui.managegroup.dialogs.GroupDescriptionDialog
import org.thoughtcrime.securesms.groups.ui.managegroup.dialogs.GroupInviteSentDialog
import org.thoughtcrime.securesms.groups.ui.managegroup.dialogs.GroupsLearnMoreBottomSheetDialogFragment
import org.thoughtcrime.securesms.groups.ui.migration.GroupsV1MigrationInitiationBottomSheetDialogFragment
import org.thoughtcrime.securesms.mediaoverview.MediaOverviewActivity
import org.thoughtcrime.securesms.profiles.edit.EditProfileActivity
import org.thoughtcrime.securesms.recipients.Recipient
import org.thoughtcrime.securesms.recipients.RecipientExporter
import org.thoughtcrime.securesms.recipients.RecipientId
import org.thoughtcrime.securesms.recipients.ui.bottomsheet.RecipientBottomSheetDialogFragment
import org.thoughtcrime.securesms.recipients.ui.sharablegrouplink.ShareableGroupLinkDialogFragment
import org.thoughtcrime.securesms.util.CommunicationActions
import org.thoughtcrime.securesms.util.ContextUtil
import org.thoughtcrime.securesms.util.ExpirationUtil
import org.thoughtcrime.securesms.util.ThemeUtil
import org.thoughtcrime.securesms.util.ViewUtil
import org.thoughtcrime.securesms.util.views.SimpleProgressDialog
import org.thoughtcrime.securesms.wallpaper.ChatWallpaperActivity

private const val REQUEST_CODE_VIEW_CONTACT = 1
private const val REQUEST_CODE_ADD_CONTACT = 2
private const val REQUEST_CODE_ADD_MEMBERS_TO_GROUP = 3
private const val REQUEST_CODE_RETURN_FROM_MEDIA = 4

class ConversationSettingsFragment : DSLSettingsFragment(
  layoutId = R.layout.conversation_settings_fragment,
  menuId = R.menu.conversation_settings
) {

  private val alertTint by lazy { ContextCompat.getColor(requireContext(), R.color.signal_alert_primary) }
  private val blockIcon by lazy {
    ContextUtil.requireDrawable(requireContext(), R.drawable.ic_block_tinted_24).apply {
      colorFilter = PorterDuffColorFilter(alertTint, PorterDuff.Mode.SRC_IN)
    }
  }

  private val unblockIcon by lazy {
    ContextUtil.requireDrawable(requireContext(), R.drawable.ic_block_tinted_24)
  }

  private val leaveIcon by lazy {
    ContextUtil.requireDrawable(requireContext(), R.drawable.ic_leave_tinted_24).apply {
      colorFilter = PorterDuffColorFilter(alertTint, PorterDuff.Mode.SRC_IN)
    }
  }

  private val viewModel by viewModels<ConversationSettingsViewModel>(
    factoryProducer = {
      val args = ConversationSettingsFragmentArgs.fromBundle(requireArguments())
      val groupId = args.groupId as? ParcelableGroupId

      ConversationSettingsViewModel.Factory(
        recipientId = args.recipientId,
        groupId = ParcelableGroupId.get(groupId),
        repository = ConversationSettingsRepository(requireContext())
      )
    }
  )

  private lateinit var callback: Callback

  private lateinit var toolbar: Toolbar
  private lateinit var toolbarAvatar: AvatarImageView
  private lateinit var toolbarTitle: TextView
  private lateinit var toolbarBackground: View

  private val navController get() = Navigation.findNavController(requireView())

  override fun onAttach(context: Context) {
    super.onAttach(context)

    callback = context as Callback
  }

  override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
    toolbar = view.findViewById(R.id.toolbar)
    toolbarAvatar = view.findViewById(R.id.toolbar_avatar)
    toolbarTitle = view.findViewById(R.id.toolbar_title)
    toolbarBackground = view.findViewById(R.id.toolbar_background)

    super.onViewCreated(view, savedInstanceState)
  }

  override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
    when (requestCode) {
      REQUEST_CODE_ADD_MEMBERS_TO_GROUP -> if (data != null) {
        val selected: List<RecipientId> = requireNotNull(data.getParcelableArrayListExtra(PushContactSelectionActivity.KEY_SELECTED_RECIPIENTS))
        val progress: SimpleProgressDialog.DismissibleDialog = SimpleProgressDialog.showDelayed(requireContext())

        viewModel.onAddToGroupComplete(selected) {
          progress.dismiss()
        }
      }
      REQUEST_CODE_RETURN_FROM_MEDIA -> viewModel.refreshSharedMedia()
      REQUEST_CODE_ADD_CONTACT -> viewModel.refreshRecipient()
      REQUEST_CODE_VIEW_CONTACT -> viewModel.refreshRecipient()
    }
  }

  override fun getOnScrollAnimationHelper(toolbarShadow: View): OnScrollAnimationHelper {
    return ConversationSettingsOnUserScrolledAnimationHelper(toolbarAvatar, toolbarTitle, toolbarBackground, toolbarShadow)
  }

  override fun onOptionsItemSelected(item: MenuItem): Boolean {
    return if (item.itemId == R.id.action_edit) {
      val args = ConversationSettingsFragmentArgs.fromBundle(requireArguments())
      val groupId = args.groupId as ParcelableGroupId

      startActivity(EditProfileActivity.getIntentForGroupProfile(requireActivity(), requireNotNull(ParcelableGroupId.get(groupId))))
      true
    } else {
      super.onOptionsItemSelected(item)
    }
  }

  override fun bindAdapter(adapter: DSLSettingsAdapter) {
    BioTextPreference.register(adapter)
    AvatarPreference.register(adapter)
    ButtonStripPreference.register(adapter)
    LargeIconClickPreference.register(adapter)
    SharedMediaPreference.register(adapter)
    RecipientPreference.register(adapter)
    InternalPreference.register(adapter)
    GroupDescriptionPreference.register(adapter)
    LegacyGroupPreference.register(adapter)

    viewModel.state.observe(viewLifecycleOwner) { state ->

      if (state.recipient != Recipient.UNKNOWN) {
        toolbarAvatar.buildOptions()
          .withQuickContactEnabled(false)
          .withUseSelfProfileAvatar(false)
          .withFixedSize(ViewUtil.dpToPx(80))
          .load(state.recipient)

        state.withRecipientSettingsState {
          toolbarTitle.text = state.recipient.getDisplayName(requireContext())
        }

        state.withGroupSettingsState {
          toolbarTitle.text = it.groupTitle
          toolbar.menu.findItem(R.id.action_edit).isVisible = it.canEditGroupAttributes
        }
      }

      adapter.submitList(getConfiguration(state).toMappingModelList()) {
        if (state.isLoaded) {
          (view?.parent as? ViewGroup)?.doOnPreDraw {
            callback.onContentWillRender()
          }
        }
      }
    }

    viewModel.events.observe(viewLifecycleOwner) { event ->
      @Exhaustive
      when (event) {
        is ConversationSettingsEvent.AddToAGroup -> handleAddToAGroup(event)
        is ConversationSettingsEvent.AddMembersToGroup -> handleAddMembersToGroup(event)
        ConversationSettingsEvent.ShowGroupHardLimitDialog -> showGroupHardLimitDialog()
        is ConversationSettingsEvent.ShowAddMembersToGroupError -> showAddMembersToGroupError(event)
        is ConversationSettingsEvent.ShowGroupInvitesSentDialog -> showGroupInvitesSentDialog(event)
        is ConversationSettingsEvent.ShowMembersAdded -> showMembersAdded(event)
        is ConversationSettingsEvent.InitiateGroupMigration -> GroupsV1MigrationInitiationBottomSheetDialogFragment.showForInitiation(parentFragmentManager, event.recipientId)
      }
    }
  }

  private fun getConfiguration(state: ConversationSettingsState): DSLConfiguration {
    return configure {
      if (state.recipient == Recipient.UNKNOWN) {
        return@configure
      }

      customPref(
        AvatarPreference.Model(
          recipient = state.recipient,
          onAvatarClick = { avatar ->
            requireActivity().apply {
              startActivity(
                AvatarPreviewActivity.intentFromRecipientId(this, state.recipient.id),
                AvatarPreviewActivity.createTransitionBundle(this, avatar)
              )
            }
          }
        )
      )

      state.withRecipientSettingsState {
        customPref(BioTextPreference.RecipientModel(recipient = state.recipient))
      }

      state.withGroupSettingsState { groupState ->

        val groupMembershipDescription = if (groupState.groupId.isV1) {
          String.format("%s · %s", groupState.membershipCountDescription, getString(R.string.ManageGroupActivity_legacy_group))
        } else if (!groupState.canEditGroupAttributes && groupState.groupDescription.isNullOrEmpty()) {
          groupState.membershipCountDescription
        } else {
          null
        }

        customPref(
          BioTextPreference.GroupModel(
            groupTitle = groupState.groupTitle,
            groupMembershipDescription = groupMembershipDescription
          )
        )

        if (groupState.groupId.isV2) {
          customPref(
            GroupDescriptionPreference.Model(
              groupId = groupState.groupId,
              groupDescription = groupState.groupDescription,
              descriptionShouldLinkify = groupState.groupDescriptionShouldLinkify,
              canEditGroupAttributes = groupState.canEditGroupAttributes,
              onEditGroupDescription = {
                startActivity(EditProfileActivity.getIntentForGroupProfile(requireActivity(), groupState.groupId))
              },
              onViewGroupDescription = {
                GroupDescriptionDialog.show(childFragmentManager, groupState.groupId, null, groupState.groupDescriptionShouldLinkify)
              }
            )
          )
        } else if (groupState.legacyGroupState != LegacyGroupPreference.State.NONE) {
          customPref(
            LegacyGroupPreference.Model(
              state = groupState.legacyGroupState,
              onLearnMoreClick = { GroupsLearnMoreBottomSheetDialogFragment.show(parentFragmentManager) },
              onUpgradeClick = { viewModel.initiateGroupUpgrade() },
              onMmsWarningClick = { startActivity(Intent(requireContext(), InviteActivity::class.java)) }
            )
          )
        }
      }

      state.withRecipientSettingsState { recipientState ->
        if (recipientState.displayInternalRecipientDetails) {
          customPref(
            InternalPreference.Model(
              recipient = state.recipient,
              onDisableProfileSharingClick = {
                viewModel.disableProfileSharing()
              }
            )
          )
        }
      }

      customPref(
        ButtonStripPreference.Model(
          state = state.buttonStripState,
          onVideoClick = {
            CommunicationActions.startVideoCall(requireActivity(), state.recipient)
          },
          onAudioClick = {
            CommunicationActions.startVoiceCall(requireActivity(), state.recipient)
          },
          onMuteClick = {
            if (!state.buttonStripState.isMuted) {
              MuteDialog.show(requireContext(), viewModel::setMuteUntil)
            } else {
              MaterialAlertDialogBuilder(requireContext())
                .setMessage(state.recipient.muteUntil.formatMutedUntil(requireContext()))
                .setPositiveButton(R.string.ConversationSettingsFragment__unmute) { dialog, _ ->
                  viewModel.unmute()
                  dialog.dismiss()
                }
                .setNegativeButton(android.R.string.cancel) { dialog, _ -> dialog.dismiss() }
                .show()
            }
          },
          onSearchClick = {
            val intent = ConversationIntents.createBuilder(requireContext(), state.recipient.id, state.threadId)
              .withSearchOpen(true)
              .build()

            startActivity(intent)
            requireActivity().finish()
          }
        )
      )

      dividerPref()

      val summary = DSLSettingsText.from(formatDisappearingMessagesLifespan(state.disappearingMessagesLifespan))
      val icon = if (state.disappearingMessagesLifespan <= 0) {
        R.drawable.ic_update_timer_disabled_16
      } else {
        R.drawable.ic_update_timer_16
      }

      var enabled = true
      state.withGroupSettingsState {
        enabled = it.canEditGroupAttributes
      }

      clickPref(
        title = DSLSettingsText.from(R.string.ConversationSettingsFragment__disappearing_messages),
        summary = summary,
        icon = DSLSettingsIcon.from(icon),
        isEnabled = enabled,
        onClick = {
          val action = ConversationSettingsFragmentDirections.actionConversationSettingsFragmentToAppSettingsExpireTimer()
            .setInitialValue(state.disappearingMessagesLifespan)
            .setRecipientId(state.recipient.id)
            .setForResultMode(false)

          navController.navigate(action)
        }
      )

      clickPref(
        title = DSLSettingsText.from(R.string.preferences__chat_color_and_wallpaper),
        icon = DSLSettingsIcon.from(R.drawable.ic_color_24),
        onClick = {
          startActivity(ChatWallpaperActivity.createIntent(requireContext(), state.recipient.id))
        }
      )

      if (!state.recipient.isSelf) {
        clickPref(
          title = DSLSettingsText.from(R.string.ConversationSettingsFragment__sounds_and_notifications),
          icon = DSLSettingsIcon.from(R.drawable.ic_speaker_24),
          onClick = {
            val action = ConversationSettingsFragmentDirections.actionConversationSettingsFragmentToSoundsAndNotificationsSettingsFragment(state.recipient.id)

            navController.navigate(action)
          }
        )
      }

      state.withRecipientSettingsState { recipientState ->
        when (recipientState.contactLinkState) {
          ContactLinkState.OPEN -> {
            clickPref(
              title = DSLSettingsText.from(R.string.ConversationSettingsFragment__contact_details),
              icon = DSLSettingsIcon.from(R.drawable.ic_profile_circle_24),
              onClick = {
                startActivityForResult(Intent(Intent.ACTION_VIEW, state.recipient.contactUri), REQUEST_CODE_VIEW_CONTACT)
              }
            )
          }
          ContactLinkState.ADD -> {
            clickPref(
              title = DSLSettingsText.from(R.string.ConversationSettingsFragment__add_as_a_contact),
              icon = DSLSettingsIcon.from(R.drawable.ic_plus_24),
              onClick = {
                startActivityForResult(RecipientExporter.export(state.recipient).asAddContactIntent(), REQUEST_CODE_ADD_CONTACT)
              }
            )
          }
          ContactLinkState.NONE -> {
          }
        }

        if (recipientState.identityRecord != null) {
          clickPref(
            title = DSLSettingsText.from(R.string.ConversationSettingsFragment__view_safety_number),
            icon = DSLSettingsIcon.from(R.drawable.ic_safety_number_24),
            onClick = {
              startActivity(VerifyIdentityActivity.newIntent(requireActivity(), recipientState.identityRecord))
            }
          )
        }
      }

      if (state.sharedMedia != null && state.sharedMedia.count > 0) {
        dividerPref()

        sectionHeaderPref(R.string.recipient_preference_activity__shared_media)

        customPref(
          SharedMediaPreference.Model(
            mediaCursor = state.sharedMedia,
            mediaIds = state.sharedMediaIds,
            onMediaRecordClick = { mediaRecord, isLtr ->
              startActivityForResult(
                MediaPreviewActivity.intentFromMediaRecord(requireContext(), mediaRecord, isLtr),
                REQUEST_CODE_RETURN_FROM_MEDIA
              )
            }
          )
        )

        clickPref(
          title = DSLSettingsText.from(R.string.ConversationSettingsFragment__see_all),
          onClick = {
            startActivity(MediaOverviewActivity.forThread(requireContext(), state.threadId))
          }
        )
      }

      state.withRecipientSettingsState { groupState ->
        if (groupState.selfHasGroups) {

          dividerPref()

          val groupsInCommonCount = groupState.allGroupsInCommon.size
          sectionHeaderPref(
            DSLSettingsText.from(
              if (groupsInCommonCount == 0) {
                getString(R.string.ManageRecipientActivity_no_groups_in_common)
              } else {
                resources.getQuantityString(
                  R.plurals.ManageRecipientActivity_d_groups_in_common,
                  groupsInCommonCount,
                  groupsInCommonCount
                )
              }
            )
          )

          customPref(
            LargeIconClickPreference.Model(
              title = DSLSettingsText.from(R.string.ConversationSettingsFragment__add_to_a_group),
              icon = DSLSettingsIcon.from(R.drawable.add_to_a_group, NO_TINT),
              onClick = {
                viewModel.onAddToGroup()
              }
            )
          )

          for (group in groupState.groupsInCommon) {
            customPref(
              RecipientPreference.Model(
                recipient = group,
                onClick = {
                  CommunicationActions.startConversation(requireActivity(), group, null)
                  requireActivity().finish()
                }
              )
            )
          }

          if (groupState.canShowMoreGroupsInCommon) {
            customPref(
              LargeIconClickPreference.Model(
                title = DSLSettingsText.from(R.string.ConversationSettingsFragment__see_all),
                icon = DSLSettingsIcon.from(R.drawable.show_more, NO_TINT),
                onClick = {
                  viewModel.revealAllMembers()
                }
              )
            )
          }
        }
      }

      state.withGroupSettingsState { groupState ->
        val memberCount = groupState.allMembers.size

        if (groupState.canAddToGroup || memberCount > 0) {
          dividerPref()

          sectionHeaderPref(DSLSettingsText.from(resources.getQuantityString(R.plurals.ContactSelectionListFragment_d_members, memberCount, memberCount)))
        }

        if (groupState.canAddToGroup) {
          customPref(
            LargeIconClickPreference.Model(
              title = DSLSettingsText.from(R.string.ConversationSettingsFragment__add_members),
              icon = DSLSettingsIcon.from(R.drawable.add_to_a_group, NO_TINT),
              onClick = {
                viewModel.onAddToGroup()
              }
            )
          )
        }

        for (member in groupState.members) {
          customPref(
            RecipientPreference.Model(
              recipient = member.member,
              isAdmin = member.isAdmin,
              onClick = {
                RecipientBottomSheetDialogFragment.create(member.member.id, groupState.groupId).show(parentFragmentManager, "BOTTOM")
              }
            )
          )
        }

        if (groupState.canShowMoreGroupMembers) {
          customPref(
            LargeIconClickPreference.Model(
              title = DSLSettingsText.from(R.string.ConversationSettingsFragment__see_all),
              icon = DSLSettingsIcon.from(R.drawable.show_more, NO_TINT),
              onClick = {
                viewModel.revealAllMembers()
              }
            )
          )
        }

        if (state.recipient.isPushV2Group) {
          dividerPref()

          clickPref(
            title = DSLSettingsText.from(R.string.ConversationSettingsFragment__group_link),
            summary = DSLSettingsText.from(if (groupState.groupLinkEnabled) R.string.preferences_on else R.string.preferences_off),
            icon = DSLSettingsIcon.from(R.drawable.ic_link_16),
            onClick = {
              ShareableGroupLinkDialogFragment.create(groupState.groupId.requireV2()).show(parentFragmentManager, "DIALOG")
            }
          )

          clickPref(
            title = DSLSettingsText.from(R.string.ConversationSettingsFragment__requests_and_invites),
            icon = DSLSettingsIcon.from(R.drawable.ic_update_group_add_16),
            onClick = {
              startActivity(ManagePendingAndRequestingMembersActivity.newIntent(requireContext(), groupState.groupId.requireV2()))
            }
          )

          if (groupState.isSelfAdmin) {
            clickPref(
              title = DSLSettingsText.from(R.string.ConversationSettingsFragment__permissions),
              icon = DSLSettingsIcon.from(R.drawable.ic_lock_24),
              onClick = {
                val action = ConversationSettingsFragmentDirections.actionConversationSettingsFragmentToPermissionsSettingsFragment(ParcelableGroupId.from(groupState.groupId))
                navController.navigate(action)
              }
            )
          }
        }

        if (groupState.canLeave) {
          dividerPref()

          clickPref(
            title = DSLSettingsText.from(R.string.conversation__menu_leave_group, alertTint),
            icon = DSLSettingsIcon.from(leaveIcon),
            onClick = {
              LeaveGroupDialog.handleLeavePushGroup(requireActivity(), groupState.groupId.requirePush(), null)
            }
          )
        }
      }

      if (state.canModifyBlockedState) {
        state.withRecipientSettingsState {
          dividerPref()
        }

        state.withGroupSettingsState {
          if (!it.canLeave) {
            dividerPref()
          }
        }

        val isBlocked = state.recipient.isBlocked
        val isGroup = state.recipient.isPushGroup

        val title = when {
          isBlocked && isGroup -> R.string.ConversationSettingsFragment__unblock_group
          isBlocked -> R.string.ConversationSettingsFragment__unblock
          isGroup -> R.string.ConversationSettingsFragment__block_group
          else -> R.string.ConversationSettingsFragment__block
        }

        val titleTint = if (isBlocked) null else alertTint
        val blockUnblockIcon = if (isBlocked) unblockIcon else blockIcon

        clickPref(
          title = DSLSettingsText.from(title, titleTint),
          icon = DSLSettingsIcon.from(blockUnblockIcon),
          onClick = {
            if (state.recipient.isBlocked) {
              BlockUnblockDialog.showUnblockFor(requireContext(), viewLifecycleOwner.lifecycle, state.recipient) {
                viewModel.unblock()
              }
            } else {
              BlockUnblockDialog.showBlockFor(requireContext(), viewLifecycleOwner.lifecycle, state.recipient) {
                viewModel.block()
              }
            }
          }
        )
      }
    }
  }

  private fun formatDisappearingMessagesLifespan(disappearingMessagesLifespan: Int): String {
    return if (disappearingMessagesLifespan <= 0) {
      getString(R.string.preferences_off)
    } else {
      ExpirationUtil.getExpirationDisplayValue(requireContext(), disappearingMessagesLifespan)
    }
  }

  private fun handleAddToAGroup(addToAGroup: ConversationSettingsEvent.AddToAGroup) {
    startActivity(AddToGroupsActivity.newIntent(requireContext(), addToAGroup.recipientId, addToAGroup.groupMembership))
  }

  private fun handleAddMembersToGroup(addMembersToGroup: ConversationSettingsEvent.AddMembersToGroup) {
    startActivityForResult(
      AddMembersActivity.createIntent(
        requireContext(),
        addMembersToGroup.groupId,
        ContactsCursorLoader.DisplayMode.FLAG_PUSH,
        addMembersToGroup.selectionWarning,
        addMembersToGroup.selectionLimit,
        addMembersToGroup.groupMembersWithoutSelf
      ),
      REQUEST_CODE_ADD_MEMBERS_TO_GROUP
    )
  }

  private fun showGroupHardLimitDialog() {
    GroupLimitDialog.showHardLimitMessage(requireContext())
  }

  private fun showAddMembersToGroupError(showAddMembersToGroupError: ConversationSettingsEvent.ShowAddMembersToGroupError) {
    Toast.makeText(requireContext(), GroupErrors.getUserDisplayMessage(showAddMembersToGroupError.failureReason), Toast.LENGTH_LONG).show()
  }

  private fun showGroupInvitesSentDialog(showGroupInvitesSentDialog: ConversationSettingsEvent.ShowGroupInvitesSentDialog) {
    GroupInviteSentDialog.showInvitesSent(requireContext(), showGroupInvitesSentDialog.invitesSentTo)
  }

  private fun showMembersAdded(showMembersAdded: ConversationSettingsEvent.ShowMembersAdded) {
    val string = resources.getQuantityString(
      R.plurals.ManageGroupActivity_added,
      showMembersAdded.membersAddedCount,
      showMembersAdded.membersAddedCount
    )

    Snackbar.make(requireView(), string, Snackbar.LENGTH_SHORT).setTextColor(Color.WHITE).show()
  }

  private class ConversationSettingsOnUserScrolledAnimationHelper(
    private val toolbarAvatar: View,
    private val toolbarTitle: View,
    private val toolbarBackground: View,
    toolbarShadow: View
  ) : ToolbarShadowAnimationHelper(toolbarShadow) {

    override val duration: Long = 200L

    private val actionBarSize = ThemeUtil.getThemedDimen(toolbarShadow.context, R.attr.actionBarSize)
    private val rect = Rect()

    override fun getAnimationState(recyclerView: RecyclerView): AnimationState {
      val layoutManager = recyclerView.layoutManager as LinearLayoutManager

      return if (layoutManager.findFirstVisibleItemPosition() == 0) {
        val firstChild = requireNotNull(layoutManager.getChildAt(0))
        firstChild.getLocalVisibleRect(rect)

        if (rect.height() <= actionBarSize) {
          AnimationState.SHOW
        } else {
          AnimationState.HIDE
        }
      } else {
        AnimationState.SHOW
      }
    }

    override fun show(duration: Long) {
      super.show(duration)

      toolbarAvatar
        .animate()
        .setDuration(duration)
        .translationY(0f)
        .alpha(1f)

      toolbarTitle
        .animate()
        .setDuration(duration)
        .translationY(0f)
        .alpha(1f)

      toolbarBackground
        .animate()
        .setDuration(duration)
        .alpha(1f)
    }

    override fun hide(duration: Long) {
      super.hide(duration)

      toolbarAvatar
        .animate()
        .setDuration(duration)
        .translationY(ViewUtil.dpToPx(56).toFloat())
        .alpha(0f)

      toolbarTitle
        .animate()
        .setDuration(duration)
        .translationY(ViewUtil.dpToPx(56).toFloat())
        .alpha(0f)

      toolbarBackground
        .animate()
        .setDuration(duration)
        .alpha(0f)
    }
  }

  interface Callback {
    fun onContentWillRender()
  }
}
