~captainepoch/husky

ref: 300e19a9c5b0fa139acafe4b9ddd1fd3f6175e82 husky/husky/app/src/main/java/com/keylesspalace/tusky/MainActivity.kt -rw-r--r-- 34.3 KiB
300e19a9Adolfo Santiago Update flavors 3 months ago
                                                                                
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/* Copyright 2020 Tusky Contributors
 *
 * This file is a part of Tusky.
 *
 * 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.
 *
 * Tusky 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 Tusky; if not,
 * see <http://www.gnu.org/licenses>. */

package com.keylesspalace.tusky

import android.content.Context
import android.content.DialogInterface
import android.content.Intent
import android.content.res.ColorStateList
import android.graphics.Color
import android.graphics.drawable.Drawable
import android.net.Uri
import android.os.Bundle
import android.util.Log
import android.view.KeyEvent
import android.view.MenuItem
import android.view.View
import android.widget.ImageView
import androidx.appcompat.app.AlertDialog
import androidx.coordinatorlayout.widget.CoordinatorLayout
import androidx.core.content.ContextCompat
import androidx.core.content.edit
import androidx.core.content.pm.ShortcutManagerCompat
import androidx.emoji.text.EmojiCompat
import androidx.emoji.text.EmojiCompat.InitCallback
import androidx.lifecycle.Lifecycle
import androidx.preference.PreferenceManager
import androidx.viewpager2.widget.MarginPageTransformer
import com.bumptech.glide.Glide
import com.bumptech.glide.RequestManager
import com.bumptech.glide.load.resource.bitmap.RoundedCorners
import com.bumptech.glide.request.target.CustomTarget
import com.bumptech.glide.request.target.FixedSizeDrawable
import com.bumptech.glide.request.transition.Transition
import com.google.android.material.floatingactionbutton.FloatingActionButton
import com.google.android.material.tabs.TabLayout
import com.google.android.material.tabs.TabLayout.OnTabSelectedListener
import com.google.android.material.tabs.TabLayoutMediator
import com.google.android.material.tabs.TabLayoutMediator.TabConfigurationStrategy
import com.keylesspalace.tusky.appstore.*
import com.keylesspalace.tusky.components.announcements.AnnouncementsActivity
import com.keylesspalace.tusky.components.compose.ComposeActivity
import com.keylesspalace.tusky.components.compose.ComposeActivity.Companion.canHandleMimeType
import com.keylesspalace.tusky.components.conversation.ConversationsRepository
import com.keylesspalace.tusky.components.drafts.DraftsActivity
import com.keylesspalace.tusky.components.notifications.NotificationHelper
import com.keylesspalace.tusky.components.preference.PreferencesActivity
import com.keylesspalace.tusky.components.scheduled.ScheduledTootActivity
import com.keylesspalace.tusky.components.search.SearchActivity
import com.keylesspalace.tusky.db.AccountEntity
import com.keylesspalace.tusky.db.AppDatabase
import com.keylesspalace.tusky.entity.Account
import com.keylesspalace.tusky.entity.Notification
import com.keylesspalace.tusky.fragment.SFragment
import com.keylesspalace.tusky.interfaces.AccountSelectionListener
import com.keylesspalace.tusky.interfaces.ActionButtonActivity
import com.keylesspalace.tusky.interfaces.ReselectableFragment
import com.keylesspalace.tusky.pager.MainPagerAdapter
import com.keylesspalace.tusky.service.StreamingService
import com.keylesspalace.tusky.settings.PrefKeys
import com.keylesspalace.tusky.util.*
import com.mikepenz.iconics.IconicsDrawable
import com.mikepenz.iconics.typeface.library.googlematerial.GoogleMaterial
import com.mikepenz.iconics.utils.colorInt
import com.mikepenz.iconics.utils.sizeDp
import com.mikepenz.materialdrawer.holder.BadgeStyle
import com.mikepenz.materialdrawer.holder.ColorHolder
import com.mikepenz.materialdrawer.holder.StringHolder
import com.mikepenz.materialdrawer.iconics.iconicsIcon
import com.mikepenz.materialdrawer.model.*
import com.mikepenz.materialdrawer.model.interfaces.*
import com.mikepenz.materialdrawer.util.*
import com.mikepenz.materialdrawer.widget.AccountHeaderView
import com.uber.autodispose.android.lifecycle.autoDispose
import dagger.android.DispatchingAndroidInjector
import dagger.android.HasAndroidInjector
import io.reactivex.android.schedulers.AndroidSchedulers
import io.reactivex.schedulers.Schedulers
import kotlinx.android.synthetic.main.activity_main.*
import retrofit2.Call
import retrofit2.Callback
import retrofit2.Response
import java.io.IOException
import javax.inject.Inject

class MainActivity : BottomSheetActivity(), ActionButtonActivity, HasAndroidInjector {
    @Inject
    lateinit var androidInjector: DispatchingAndroidInjector<Any>

    @Inject
    lateinit var eventHub: EventHub

    @Inject
    lateinit var cacheUpdater: CacheUpdater

    @Inject
    lateinit var conversationRepository: ConversationsRepository

    @Inject
    lateinit var appDb: AppDatabase

    private lateinit var header: AccountHeaderView

    private var notificationTabPosition = 0
    private var onTabSelectedListener: OnTabSelectedListener? = null

    private var unreadAnnouncementsCount = 0

    private val preferences by lazy { PreferenceManager.getDefaultSharedPreferences(this) }

    private lateinit var glide: RequestManager

    private val emojiInitCallback = object : InitCallback() {
        override fun onInitialized() {
            if (!isDestroyed) {
                updateProfiles()
            }
        }
    }

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

        val activeAccount = accountManager.activeAccount
        if (activeAccount == null) {
            // will be redirected to LoginActivity by BaseActivity
            return
        }
        var showNotificationTab = false
        if (intent != null) {
            /** there are two possibilities the accountId can be passed to MainActivity:
             * - from our code as long 'account_id'
             * - from share shortcuts as String 'android.intent.extra.shortcut.ID'
             */
            var accountId = intent.getLongExtra(NotificationHelper.ACCOUNT_ID, -1)
            if (accountId == -1L) {
                val accountIdString = intent.getStringExtra(ShortcutManagerCompat.EXTRA_SHORTCUT_ID)
                if (accountIdString != null) {
                    accountId = accountIdString.toLong()
                }
            }
            val accountRequested = accountId != -1L
            if (accountRequested && accountId != activeAccount.id) {
                accountManager.setActiveAccount(accountId)
            }
            if (canHandleMimeType(intent.type)) {
                // Sharing to Tusky from an external app
                if (accountRequested) {
                    // The correct account is already active
                    forwardShare(intent)
                } else {
                    // No account was provided, show the chooser
                    showAccountChooserDialog(getString(R.string.action_share_as), true, object : AccountSelectionListener {
                        override fun onAccountSelected(account: AccountEntity) {
                            val requestedId = account.id
                            if (requestedId == activeAccount.id) {
                                // The correct account is already active
                                forwardShare(intent)
                            } else {
                                // A different account was requested, restart the activity
                                intent.putExtra(NotificationHelper.ACCOUNT_ID, requestedId)
                                changeAccount(requestedId, intent)
                            }
                        }
                    })
                }
            } else if (accountRequested) {
                // user clicked a notification, show notification tab and switch user if necessary
                showNotificationTab = true
            }
        }
        window.statusBarColor = Color.TRANSPARENT // don't draw a status bar, the DrawerLayout and the MaterialDrawerLayout have their own
        setContentView(R.layout.activity_main)
        ViewPager2Fix.reduceVelocity(viewPager, 2.0f);

        glide = Glide.with(this)

        composeButton.setOnClickListener {
            val composeIntent = Intent(applicationContext, ComposeActivity::class.java)
            startActivity(composeIntent)
        }

        val hideTopToolbar = preferences.getBoolean(PrefKeys.HIDE_TOP_TOOLBAR, false)
        mainToolbar.visible(!hideTopToolbar)

        loadDrawerAvatar(activeAccount.profilePictureUrl, true)

        mainToolbar.menu.add(R.string.action_search).apply {
            setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM)
            icon = IconicsDrawable(this@MainActivity, GoogleMaterial.Icon.gmd_search).apply {
                sizeDp = 20
                colorInt = ThemeUtils.getColor(this@MainActivity, android.R.attr.textColorPrimary)
            }
            setOnMenuItemClickListener {
                startActivity(SearchActivity.getIntent(this@MainActivity))
                true
            }
        }

        setupDrawer(savedInstanceState, addSearchButton = hideTopToolbar)

        /* Fetch user info while we're doing other things. This has to be done after setting up the
         * drawer, though, because its callback touches the header in the drawer. */
        fetchUserInfo()

        fetchAnnouncements()

        setupTabs(showNotificationTab)

        eventHub.events
                .observeOn(AndroidSchedulers.mainThread())
                .autoDispose(this, Lifecycle.Event.ON_DESTROY)
                .subscribe { event: Event? ->
                    when (event) {
                        is ProfileEditedEvent -> onFetchUserInfoSuccess(event.newProfileData)
                        is MainTabsChangedEvent -> setupTabs(false)
                        is PreferenceChangedEvent -> {
                            when (event.preferenceKey) {
                                PrefKeys.LIVE_NOTIFICATIONS -> {
                                    initPullNotifications()
                                }
                            }
                        }
                        is AnnouncementReadEvent -> {
                            unreadAnnouncementsCount--
                            updateAnnouncementsBadge()
                        }
                    }
                }

        Schedulers.io().scheduleDirect {
            // Flush old media that was cached for sharing
            deleteStaleCachedMedia(applicationContext.getExternalFilesDir("Husky"))
        }
    }

    private fun initPullNotifications() {
        if (NotificationHelper.areNotificationsEnabled(this, accountManager)) {
            if(accountManager.areNotificationsStreamingEnabled()) {
                StreamingService.startStreaming(this)
                NotificationHelper.disablePullNotifications(this)
            } else {
                StreamingService.stopStreaming(this)
                NotificationHelper.enablePullNotifications(this)
            }
        } else {
            StreamingService.stopStreaming(this)
            NotificationHelper.disablePullNotifications(this)
        }
        draftWarning()
    }

    override fun onResume() {
        super.onResume()
        NotificationHelper.clearNotificationsForActiveAccount(this, accountManager)
    }

    override fun onBackPressed() {
        when {
            mainDrawerLayout.isOpen -> {
                mainDrawerLayout.close()
            }
            viewPager.currentItem != 0 -> {
                viewPager.currentItem = 0
            }
            else -> {
                super.onBackPressed()
            }
        }
    }

    override fun onKeyDown(keyCode: Int, event: KeyEvent): Boolean {
        when (keyCode) {
            KeyEvent.KEYCODE_MENU -> {
                if (mainDrawerLayout.isOpen) {
                    mainDrawerLayout.close()
                } else {
                    mainDrawerLayout.open()
                }
                return true
            }
            KeyEvent.KEYCODE_SEARCH -> {
                startActivityWithSlideInAnimation(SearchActivity.getIntent(this))
                return true
            }
        }
        if (event.isCtrlPressed || event.isShiftPressed) {
            // FIXME: blackberry keyONE raises SHIFT key event even CTRL IS PRESSED
            when (keyCode) {
                KeyEvent.KEYCODE_N -> {

                    // open compose activity by pressing SHIFT + N (or CTRL + N)
                    val composeIntent = Intent(applicationContext, ComposeActivity::class.java)
                    startActivity(composeIntent)
                    return true
                }
            }
        }
        return super.onKeyDown(keyCode, event)
    }

    public override fun onPostCreate(savedInstanceState: Bundle?) {
        super.onPostCreate(savedInstanceState)

        if (intent != null) {
            val statusUrl = intent.getStringExtra(STATUS_URL)
            if (statusUrl != null) {
                viewUrl(statusUrl, PostLookupFallbackBehavior.DISPLAY_ERROR)
            }
        }
    }

    override fun onDestroy() {
        super.onDestroy()
        EmojiCompat.get().unregisterInitCallback(emojiInitCallback)
    }

    private fun forwardShare(intent: Intent) {
        val composeIntent = Intent(this, ComposeActivity::class.java)
        composeIntent.action = intent.action
        composeIntent.type = intent.type
        composeIntent.putExtras(intent)
        composeIntent.flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK
        startActivity(composeIntent)
        finish()
    }

    private fun setupDrawer(savedInstanceState: Bundle?, addSearchButton: Boolean) {

        mainToolbar.setNavigationOnClickListener {
            mainDrawerLayout.open()
        }

        header = AccountHeaderView(this).apply {
            headerBackgroundScaleType = ImageView.ScaleType.CENTER_CROP
            currentHiddenInList = true
            onAccountHeaderListener = { _: View?, profile: IProfile, current: Boolean -> handleProfileClick(profile, current) }
            addProfile(ProfileSettingDrawerItem().apply {
                identifier = DRAWER_ITEM_ADD_ACCOUNT
                nameRes = R.string.add_account_name
                descriptionRes = R.string.add_account_description
                iconicsIcon = GoogleMaterial.Icon.gmd_add
            }, 0)
            attachToSliderView(mainDrawer)
            dividerBelowHeader = false
            closeDrawerOnProfileListClick = true
        }

        header.accountHeaderBackground.setColorFilter(ContextCompat.getColor(this, R.color.headerBackgroundFilter))
        header.accountHeaderBackground.setBackgroundColor(ThemeUtils.getColor(this, R.attr.colorBackgroundAccent))
        val animateAvatars = preferences.getBoolean("animateGifAvatars", false)

        DrawerImageLoader.init(object : AbstractDrawerImageLoader() {
            override fun set(imageView: ImageView, uri: Uri, placeholder: Drawable, tag: String?) {
                if (animateAvatars) {
                    glide.load(uri)
                            .placeholder(placeholder)
                            .into(imageView)
                } else {
                    glide.asBitmap()
                            .load(uri)
                            .placeholder(placeholder)
                            .into(imageView)
                }
            }

            override fun cancel(imageView: ImageView) {
                glide.clear(imageView)
            }

            override fun placeholder(ctx: Context, tag: String?): Drawable {
                if (tag == DrawerImageLoader.Tags.PROFILE.name || tag == DrawerImageLoader.Tags.PROFILE_DRAWER_ITEM.name) {
                    return ctx.getDrawable(R.drawable.avatar_default)!!
                }

                return super.placeholder(ctx, tag)
            }
        })

        mainDrawer.apply {
            tintStatusBar = true
            addItems(
                    primaryDrawerItem {
                        nameRes = R.string.action_edit_profile
                        iconicsIcon = GoogleMaterial.Icon.gmd_person
                        onClick = {
                            val intent = Intent(context, EditProfileActivity::class.java)
                            startActivityWithSlideInAnimation(intent)
                        }
                    },
                    primaryDrawerItem {
                        nameRes = R.string.action_view_favourites
                        isSelectable = false
                        iconicsIcon = GoogleMaterial.Icon.gmd_star
                        onClick = {
                            val intent = StatusListActivity.newFavouritesIntent(context)
                            startActivityWithSlideInAnimation(intent)
                        }
                    },
                    primaryDrawerItem {
                        nameRes = R.string.action_view_bookmarks
                        iconicsIcon = GoogleMaterial.Icon.gmd_bookmark
                        onClick = {
                            val intent = StatusListActivity.newBookmarksIntent(context)
                            startActivityWithSlideInAnimation(intent)
                        }
                    },
                    primaryDrawerItem {
                        nameRes = R.string.action_lists
                        iconicsIcon = GoogleMaterial.Icon.gmd_list
                        onClick = {
                            startActivityWithSlideInAnimation(ListsActivity.newIntent(context))
                        }
                    },
                    primaryDrawerItem {
                        nameRes = R.string.action_access_saved_toot
                        iconRes = R.drawable.ic_notebook
                        onClick = {
                            val intent = DraftsActivity.newIntent(context)
                            startActivityWithSlideInAnimation(intent)
                        }
                    },
                    primaryDrawerItem {
                        nameRes = R.string.action_access_scheduled_toot
                        iconRes = R.drawable.ic_access_time
                        onClick = {
                            startActivityWithSlideInAnimation(ScheduledTootActivity.newIntent(context))
                        }
                    },
                    primaryDrawerItem {
                        identifier = DRAWER_ITEM_ANNOUNCEMENTS
                        nameRes = R.string.title_announcements
                        iconRes = R.drawable.ic_bullhorn_24dp
                        onClick = {
                            startActivityWithSlideInAnimation(AnnouncementsActivity.newIntent(context))
                        }
                        badgeStyle = BadgeStyle().apply {
                            textColor = ColorHolder.fromColor(ThemeUtils.getColor(this@MainActivity, R.attr.colorOnPrimary))
                            color = ColorHolder.fromColor(ThemeUtils.getColor(this@MainActivity, R.attr.colorPrimary))
                        }
                    },
                    DividerDrawerItem(),
                    secondaryDrawerItem {
                        nameRes = R.string.action_view_account_preferences
                        iconRes = R.drawable.ic_account_settings
                        onClick = {
                            val intent = PreferencesActivity.newIntent(context, PreferencesActivity.ACCOUNT_PREFERENCES)
                            startActivityWithSlideInAnimation(intent)
                        }
                    },
                    secondaryDrawerItem {
                        nameRes = R.string.action_view_preferences
                        iconicsIcon = GoogleMaterial.Icon.gmd_settings
                        onClick = {
                            val intent = PreferencesActivity.newIntent(context, PreferencesActivity.GENERAL_PREFERENCES)
                            startActivityWithSlideInAnimation(intent)
                        }
                    },
                    secondaryDrawerItem {
                        nameRes = R.string.about_title_activity
                        iconicsIcon = GoogleMaterial.Icon.gmd_info
                        onClick = {
                            val intent = Intent(context, AboutActivity::class.java)
                            startActivityWithSlideInAnimation(intent)
                        }
                    },
                    secondaryDrawerItem {
                        nameRes = R.string.action_logout
                        iconRes = R.drawable.ic_logout
                        onClick = ::logout
                    }
            )

            if (addSearchButton) {
                mainDrawer.addItemsAtPosition(4,
                        primaryDrawerItem {
                            nameRes = R.string.action_search
                            iconicsIcon = GoogleMaterial.Icon.gmd_search
                            onClick = {
                                startActivityWithSlideInAnimation(SearchActivity.getIntent(context))
                            }
                        })
            }

            setSavedInstance(savedInstanceState)
        }

        if (BuildConfig.DEBUG) {
            mainDrawer.addItems(
                    secondaryDrawerItem {
                        nameText = "debug"
                        isEnabled = false
                        textColor = ColorStateList.valueOf(Color.GREEN)
                    }
            )
        }
        EmojiCompat.get().registerInitCallback(emojiInitCallback)
    }

    override fun onSaveInstanceState(outState: Bundle) {
        super.onSaveInstanceState(mainDrawer.saveInstanceState(outState))
    }

    private fun setupTabs(selectNotificationTab: Boolean) {

        val activeTabLayout = if (preferences.getString("mainNavPosition", "top") == "bottom") {
            val actionBarSize = ThemeUtils.getDimension(this, R.attr.actionBarSize)
            val fabMargin = resources.getDimensionPixelSize(R.dimen.fabMargin)
            (composeButton.layoutParams as CoordinatorLayout.LayoutParams).bottomMargin = actionBarSize + fabMargin
            tabLayout.hide()
            bottomTabLayout
        } else {
            bottomNav.hide()
            (viewPager.layoutParams as CoordinatorLayout.LayoutParams).bottomMargin = 0
            (composeButton.layoutParams as CoordinatorLayout.LayoutParams).anchorId = R.id.viewPager
            tabLayout
        }

        val tabs = accountManager.activeAccount!!.tabPreferences

        val adapter = MainPagerAdapter(tabs, this)
        viewPager.adapter = adapter
        TabLayoutMediator(activeTabLayout, viewPager, TabConfigurationStrategy { _: TabLayout.Tab?, _: Int -> }).attach()
        activeTabLayout.removeAllTabs()
        for (i in tabs.indices) {
            val tab = activeTabLayout.newTab()
                    .setIcon(tabs[i].icon)
            if (tabs[i].id == LIST) {
                tab.contentDescription = tabs[i].arguments[1]
            } else {
                tab.setContentDescription(tabs[i].text)
            }
            activeTabLayout.addTab(tab)

            if (tabs[i].id == NOTIFICATIONS) {
                notificationTabPosition = i
                if (selectNotificationTab) {
                    tab.select()
                }
            }
        }

        val pageMargin = resources.getDimensionPixelSize(R.dimen.tab_page_margin)
        viewPager.setPageTransformer(MarginPageTransformer(pageMargin))

        val enableSwipeForTabs = preferences.getBoolean("enableSwipeForTabs", true)
        viewPager.isUserInputEnabled = enableSwipeForTabs

        onTabSelectedListener?.let {
            activeTabLayout.removeOnTabSelectedListener(it)
        }

        onTabSelectedListener = object : OnTabSelectedListener {
            override fun onTabSelected(tab: TabLayout.Tab) {
                if (tab.position == notificationTabPosition) {
                    NotificationHelper.clearNotificationsForActiveAccount(this@MainActivity, accountManager)
                }

                mainToolbar.title = tabs[tab.position].title(this@MainActivity)
            }

            override fun onTabUnselected(tab: TabLayout.Tab) {}

            override fun onTabReselected(tab: TabLayout.Tab) {
                val fragment = adapter.getFragment(tab.position)
                if (fragment is ReselectableFragment) {
                    (fragment as ReselectableFragment).onReselect()
                }
            }
        }.also {
            activeTabLayout.addOnTabSelectedListener(it)
        }

        val activeTabPosition = if (selectNotificationTab) notificationTabPosition else 0
        mainToolbar.title = tabs[activeTabPosition].title(this@MainActivity)
        mainToolbar.setOnClickListener {
            (adapter.getFragment(activeTabLayout.selectedTabPosition) as? ReselectableFragment)?.onReselect()
        }

    }

    private fun handleProfileClick(profile: IProfile, current: Boolean): Boolean {
        val activeAccount = accountManager.activeAccount

        //open profile when active image was clicked
        if (current && activeAccount != null) {
            val intent = AccountActivity.getIntent(this, activeAccount.accountId)
            startActivityWithSlideInAnimation(intent)
            return false
        }
        //open LoginActivity to add new account
        if (profile.identifier == DRAWER_ITEM_ADD_ACCOUNT) {
            startActivityWithSlideInAnimation(LoginActivity.getIntent(this, true))
            return false
        }
        //change Account
        changeAccount(profile.identifier, null)
        return false
    }

    private fun changeAccount(newSelectedId: Long, forward: Intent?) {
        cacheUpdater.stop()
        SFragment.flushFilters()
        accountManager.setActiveAccount(newSelectedId)
        val intent = Intent(this, MainActivity::class.java)
        intent.flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK
        if (forward != null) {
            intent.type = forward.type
            intent.action = forward.action
            intent.putExtras(forward)
        }
        startActivity(intent)
        finishWithoutSlideOutAnimation()
        overridePendingTransition(R.anim.explode, R.anim.explode)
    }

    private fun logout() {
        accountManager.activeAccount?.let { activeAccount ->
            AlertDialog.Builder(this)
                    .setTitle(R.string.action_logout)
                    .setMessage(getString(R.string.action_logout_confirm, activeAccount.fullName))
                    .setPositiveButton(android.R.string.yes) { _: DialogInterface?, _: Int ->
                        NotificationHelper.deleteNotificationChannelsForAccount(activeAccount, this)
                        cacheUpdater.clearForUser(activeAccount.id)
                        conversationRepository.deleteCacheForAccount(activeAccount.id)
                        removeShortcut(this, activeAccount)
                        val newAccount = accountManager.logActiveAccountOut()
                        initPullNotifications()
                        val intent = if (newAccount == null) {
                            LoginActivity.getIntent(this, false)
                        } else {
                            Intent(this, MainActivity::class.java)
                        }
                        startActivity(intent)
                        finishWithoutSlideOutAnimation()
                    }
                    .setNegativeButton(android.R.string.no, null)
                    .show()
        }
    }

    private fun fetchUserInfo() {
        mastodonApi.accountVerifyCredentials()
                .observeOn(AndroidSchedulers.mainThread())
                .autoDispose(this, Lifecycle.Event.ON_DESTROY)
                .subscribe(
                        { userInfo ->
                            onFetchUserInfoSuccess(userInfo)
                        },
                        { throwable ->
                            Log.e(TAG, "Failed to fetch user info. " + throwable.message)
                        }
                )
    }

    private fun onFetchUserInfoSuccess(me: Account) {
        glide.asBitmap()
                .load(me.header)
                .into(header.accountHeaderBackground)

        loadDrawerAvatar(me.avatar, false)

        accountManager.updateActiveAccount(me)
        NotificationHelper.createNotificationChannelsForAccount(accountManager.activeAccount!!, this)

        initPullNotifications()

        // Show follow requests in the menu, if this is a locked account.
        if (me.locked && mainDrawer.getDrawerItem(DRAWER_ITEM_FOLLOW_REQUESTS) == null) {
            val followRequestsItem = primaryDrawerItem {
                identifier = DRAWER_ITEM_FOLLOW_REQUESTS
                nameRes = R.string.action_view_follow_requests
                iconicsIcon = GoogleMaterial.Icon.gmd_person_add
                onClick = {
                    val intent = Intent(this@MainActivity, AccountListActivity::class.java)
                    intent.putExtra("type", AccountListActivity.Type.FOLLOW_REQUESTS)
                    startActivityWithSlideInAnimation(intent)
                }
            }
            mainDrawer.addItemAtPosition(4, followRequestsItem)
        } else if (!me.locked) {
            mainDrawer.removeItems(DRAWER_ITEM_FOLLOW_REQUESTS)
        }
        updateProfiles()
        updateShortcut(this, accountManager.activeAccount!!)
    }

    private fun loadDrawerAvatar(avatarUrl: String, showPlaceholder: Boolean) {
        val navIconSize = resources.getDimensionPixelSize(R.dimen.avatar_toolbar_nav_icon_size)

        glide.asDrawable()
            .load(avatarUrl)
            .transform(
                RoundedCorners(resources.getDimensionPixelSize(R.dimen.avatar_radius_36dp))
            )
            .apply {
                if (showPlaceholder) {
                    placeholder(R.drawable.avatar_default)
                }
            }
            .into(object : CustomTarget<Drawable>(navIconSize, navIconSize) {

                override fun onLoadStarted(placeholder: Drawable?) {
                    if(placeholder != null) {
                        mainToolbar.navigationIcon = FixedSizeDrawable(placeholder, navIconSize, navIconSize)
                    }
                }
                override fun onResourceReady(resource: Drawable, transition: Transition<in Drawable>?) {
                    mainToolbar.navigationIcon = resource
                }

                override fun onLoadCleared(placeholder: Drawable?) {
                    mainToolbar.navigationIcon = placeholder
                }
            })
    }

    private fun fetchAnnouncements() {
        mastodonApi.listAnnouncements(false)
                .observeOn(AndroidSchedulers.mainThread())
                .autoDispose(this, Lifecycle.Event.ON_DESTROY)
                .subscribe(
                        { announcements ->
                            unreadAnnouncementsCount = announcements.count { !it.read }
                            updateAnnouncementsBadge()
                        },
                        {
                            Log.w(TAG, "Failed to fetch announcements.", it)
                        }
                )
    }

    private fun updateAnnouncementsBadge() {
        mainDrawer.updateBadge(DRAWER_ITEM_ANNOUNCEMENTS, StringHolder(if (unreadAnnouncementsCount <= 0) null else unreadAnnouncementsCount.toString()))
    }

    private fun updateProfiles() {
        val profiles: MutableList<IProfile> = accountManager.getAllAccountsOrderedByActive().map { acc ->
            val emojifiedName = EmojiCompat.get().process(acc.displayName.emojify(acc.emojis, header, true))

            ProfileDrawerItem().apply {
                isSelected = acc.isActive
                nameText = emojifiedName
                iconUrl = acc.profilePictureUrl
                isNameShown = true
                identifier = acc.id
                descriptionText = acc.fullName
            }
        }.toMutableList()

        // reuse the already existing "add account" item
        for (profile in header.profiles.orEmpty()) {
            if (profile.identifier == DRAWER_ITEM_ADD_ACCOUNT) {
                profiles.add(profile)
                break
            }
        }
        header.clear()
        header.profiles = profiles
        header.setActiveProfile(accountManager.activeAccount!!.id)
    }

    private fun draftWarning() {
        val sharedPrefsKey = "show_draft_warning"
        appDb.tootDao().savedTootCount()
                .subscribeOn(Schedulers.io())
                .observeOn(AndroidSchedulers.mainThread())
                .autoDispose(this, Lifecycle.Event.ON_DESTROY)
                .subscribe { draftCount ->
                    val showDraftWarning = preferences.getBoolean(sharedPrefsKey, true)
                    if (draftCount > 0 && showDraftWarning) {
                        AlertDialog.Builder(this)
                                .setMessage(R.string.new_drafts_warning)
                                .setNegativeButton("Don't show again") { _, _ ->
                                    preferences.edit(commit = true) {
                                        putBoolean(sharedPrefsKey, false)
                                    }
                                }
                                .setPositiveButton(android.R.string.ok, null)
                                .show()
                    }
                }

    }

    override fun getActionButton(): FloatingActionButton? = composeButton

    override fun androidInjector() = androidInjector

    companion object {
        private const val TAG = "MainActivity" // logging tag
        private const val DRAWER_ITEM_ADD_ACCOUNT: Long = -13
        private const val DRAWER_ITEM_FOLLOW_REQUESTS: Long = 10
        private const val DRAWER_ITEM_ANNOUNCEMENTS: Long = 14
        const val STATUS_URL = "statusUrl"
    }
}

private inline fun primaryDrawerItem(block: PrimaryDrawerItem.() -> Unit): PrimaryDrawerItem {
    return PrimaryDrawerItem()
            .apply {
                isSelectable = false
                isIconTinted = true
            }
            .apply(block)
}

private inline fun secondaryDrawerItem(block: SecondaryDrawerItem.() -> Unit): SecondaryDrawerItem {
    return SecondaryDrawerItem()
            .apply {
                isSelectable = false
                isIconTinted = true
            }
            .apply(block)
}

private var AbstractDrawerItem<*, *>.onClick: () -> Unit
    get() = throw UnsupportedOperationException()
    set(value) {
        onDrawerItemClickListener = { _, _, _ ->
            value()
            false
        }
    }