package chat.rocket.android.main.ui

import android.app.Activity
import android.app.AlertDialog
import android.os.Bundle
import android.support.v4.app.Fragment
import android.support.v7.app.AppCompatActivity
import android.support.v7.widget.LinearLayoutManager
import android.view.Gravity
import android.view.MenuItem
import android.view.View
import chat.rocket.android.BuildConfig
import chat.rocket.android.R
import chat.rocket.android.main.adapter.Selector
import chat.rocket.android.main.adapter.AccountsAdapter
import chat.rocket.android.main.presentation.MainPresenter
import chat.rocket.android.main.presentation.MainView
import chat.rocket.android.main.viewmodel.NavHeaderViewModel
import chat.rocket.android.server.domain.model.Account
import chat.rocket.android.util.extensions.fadeIn
import chat.rocket.android.util.extensions.fadeOut
import chat.rocket.android.util.extensions.rotateBy
import chat.rocket.android.util.extensions.showToast
import chat.rocket.common.model.UserStatus
import com.google.android.gms.gcm.GoogleCloudMessaging
import com.google.android.gms.iid.InstanceID
import dagger.android.AndroidInjection
import dagger.android.AndroidInjector
import dagger.android.DispatchingAndroidInjector
import dagger.android.HasActivityInjector
import dagger.android.support.HasSupportFragmentInjector
import kotlinx.android.synthetic.main.activity_main.*
import kotlinx.android.synthetic.main.app_bar.*
import kotlinx.android.synthetic.main.nav_header.view.*
import kotlinx.coroutines.experimental.CommonPool
import kotlinx.coroutines.experimental.launch
import timber.log.Timber
import javax.inject.Inject

class MainActivity : AppCompatActivity(), MainView, HasActivityInjector, HasSupportFragmentInjector {
    @Inject lateinit var activityDispatchingAndroidInjector: DispatchingAndroidInjector<Activity>
    @Inject lateinit var fragmentDispatchingAndroidInjector: DispatchingAndroidInjector<Fragment>
    @Inject lateinit var presenter: MainPresenter
    private var isFragmentAdded: Boolean = false
    private var expanded = false
    private val headerLayout by lazy { view_navigation.getHeaderView(0) }

    override fun onCreate(savedInstanceState: Bundle?) {
        AndroidInjection.inject(this)
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        launch(CommonPool) {
            try {
                val token = InstanceID.getInstance(this@MainActivity).getToken(getString(R.string.gcm_sender_id), GoogleCloudMessaging.INSTANCE_ID_SCOPE, null)
                Timber.d("GCM token: $token")
                presenter.refreshToken(token)
            } catch (ex: Exception) {
                Timber.d(ex, "Missing play services...")
            }
        }

        presenter.connect()
        presenter.loadCurrentInfo()
        setupToolbar()
        setupNavigationView()
    }

    override fun onResume() {
        super.onResume()
        if (!isFragmentAdded) {
            presenter.toChatList()
            isFragmentAdded = true
        }
    }

    override fun onDestroy() {
        super.onDestroy()
        if (isFinishing) {
            presenter.disconnect()
        }
    }

    override fun showUserStatus(userStatus: UserStatus) {
        headerLayout.apply {
            image_user_status.setImageDrawable(
                DrawableHelper.getUserStatusDrawable(userStatus, this.context)
            )
        }
    }

    override fun setupNavHeader(viewModel: NavHeaderViewModel, accounts: List<Account>) {
        Timber.d("Setting up nav header: $viewModel")
        with(headerLayout) {
            with(viewModel) {
                if (userStatus != null) {
                    image_user_status.setImageDrawable(
                        DrawableHelper.getUserStatusDrawable(userStatus, context)
                    )
                }
                if (userDisplayName != null) {
                    text_user_name.text = userDisplayName
                }
                if (userAvatar != null) {
                    image_avatar.setImageURI(userAvatar)
                }
                if (serverLogo != null) {
                    server_logo.setImageURI(serverLogo)
                }
                text_server_url.text = viewModel.serverUrl
            }
            setupAccountsList(headerLayout, accounts)
        }
    }

    override fun closeServerSelection() {
        view_navigation.getHeaderView(0).account_container.performClick()
    }

    override fun alertNotRecommendedVersion() {
        AlertDialog.Builder(this)
                .setMessage(getString(R.string.msg_ver_not_recommended, BuildConfig.RECOMMENDED_SERVER_VERSION))
                .setPositiveButton(R.string.msg_ok, null)
                .create()
                .show()
    }

    override fun blockAndAlertNotRequiredVersion() {
        AlertDialog.Builder(this)
                .setMessage(getString(R.string.msg_ver_not_minimum, BuildConfig.REQUIRED_SERVER_VERSION))
                .setOnDismissListener { presenter.logout() }
                .setPositiveButton(R.string.msg_ok, null)
                .create()
                .show()
    }

    override fun invalidateToken(token: String) {
        InstanceID.getInstance(this).deleteToken(token, GoogleCloudMessaging.INSTANCE_ID_SCOPE)
    }

    private fun setupAccountsList(header: View, accounts: List<Account>) {
        accounts_list.layoutManager = LinearLayoutManager(this)
        accounts_list.adapter = AccountsAdapter(accounts, object : Selector {
            override fun onStatusSelected(userStatus: UserStatus) {
                presenter.changeDefaultStatus(userStatus)
            }

            override fun onAccountSelected(serverUrl: String) {
                presenter.changeServer(serverUrl)
            }

            override fun onAddedAccountSelected() {
                presenter.addNewServer()
            }
        })

        header.account_container.setOnClickListener {
            header.image_account_expand.rotateBy(180f)
            if (expanded) {
                accounts_list.fadeOut()
            } else {
                accounts_list.fadeIn()
            }

            expanded = !expanded
        }

        header.image_avatar.setOnClickListener {
            view_navigation.menu.findItem(R.id.action_profile).isChecked = true
            presenter.toUserProfile()
            drawer_layout.closeDrawer(Gravity.START)
        }
    }

    override fun showMessage(resId: Int) = showToast(resId)

    override fun showMessage(message: String) = showToast(message)

    override fun showGenericErrorMessage() = showMessage(getString(R.string.msg_generic_error))

    override fun activityInjector(): AndroidInjector<Activity> = activityDispatchingAndroidInjector

    override fun supportFragmentInjector(): AndroidInjector<Fragment> = fragmentDispatchingAndroidInjector

    private fun setupToolbar() {
        setSupportActionBar(toolbar)
        toolbar.setNavigationIcon(R.drawable.ic_menu_white_24dp)
        toolbar.setNavigationOnClickListener {
            drawer_layout.openDrawer(Gravity.START)
        }
    }

    private fun setupNavigationView() {
        view_navigation.setNavigationItemSelectedListener { menuItem ->
            menuItem.isChecked = true
            drawer_layout.closeDrawer(Gravity.START)
            onNavDrawerItemSelected(menuItem)
            true
        }
    }

    private fun onNavDrawerItemSelected(menuItem: MenuItem) {
        when (menuItem.itemId) {
            R.id.action_chat_rooms -> {
                presenter.toChatList()
            }
            R.id.action_profile -> {
                presenter.toUserProfile()
            }
            R.id.action_settings -> {
                presenter.toSettings()
            }
            R.id.action_logout -> {
                presenter.logout()
            }
        }
    }
}