/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

package org.mozilla.fenix.home

import android.content.Context
import android.view.View
import androidx.annotation.VisibleForTesting
import androidx.annotation.VisibleForTesting.PRIVATE
import androidx.core.content.ContextCompat
import androidx.lifecycle.LifecycleOwner
import androidx.lifecycle.lifecycleScope
import androidx.navigation.NavController
import mozilla.appservices.places.BookmarkRoot
import mozilla.components.browser.menu.view.MenuButton
import mozilla.components.service.glean.private.NoExtras
import org.mozilla.fenix.BrowserDirection
import org.mozilla.fenix.Config
import org.mozilla.fenix.GleanMetrics.Events
import org.mozilla.fenix.GleanMetrics.HomeScreen
import org.mozilla.fenix.HomeActivity
import org.mozilla.fenix.R
import org.mozilla.fenix.components.FenixSnackbar
import org.mozilla.fenix.components.accounts.AccountState
import org.mozilla.fenix.ext.nav
import org.mozilla.fenix.ext.settings
import org.mozilla.fenix.settings.SupportUtils
import org.mozilla.fenix.settings.deletebrowsingdata.deleteAndQuit
import org.mozilla.fenix.theme.ThemeManager
import org.mozilla.fenix.whatsnew.WhatsNew
import java.lang.ref.WeakReference
import org.mozilla.fenix.GleanMetrics.HomeMenu as HomeMenuMetrics

/**
 * Helper class for building the [HomeMenu].
 *
 * @property view The [View] to attach the snackbar to.
 * @property context  An Android [Context].
 * @property lifecycleOwner [LifecycleOwner] for the view.
 * @property homeActivity [HomeActivity] used to open URLs in a new tab.
 * @property navController [NavController] used for navigation.
 * @property menuButton The [MenuButton] that will be used to create a menu when the button is
 * clicked.
 * @property hideOnboardingIfNeeded Lambda invoked to dismiss onboarding.
 */
@Suppress("LongParameterList")
class HomeMenuBuilder(
    private val view: View,
    private val context: Context,
    private val lifecycleOwner: LifecycleOwner,
    private val homeActivity: HomeActivity,
    private val navController: NavController,
    private val menuButton: WeakReference<MenuButton>,
    private val hideOnboardingIfNeeded: () -> Unit,
) {

    /**
     * Builds the [HomeMenu].
     */
    fun build() {
        HomeMenu(
            lifecycleOwner = lifecycleOwner,
            context = context,
            onItemTapped = ::onItemTapped,
            onHighlightPresent = { menuButton.get()?.setHighlight(it) },
            onMenuBuilderChanged = { menuButton.get()?.menuBuilder = it }
        )

        menuButton.get()?.setColorFilter(
            ContextCompat.getColor(
                context,
                ThemeManager.resolveAttribute(R.attr.textPrimary, context)
            )
        )
    }

    /**
     * Callback invoked when a menu item is tapped on.
     */
    @Suppress("LongMethod", "ComplexMethod")
    @VisibleForTesting(otherwise = PRIVATE)
    internal fun onItemTapped(item: HomeMenu.Item) {
        if (item !is HomeMenu.Item.DesktopMode) {
            hideOnboardingIfNeeded()
        }

        when (item) {
            HomeMenu.Item.Settings -> {
                HomeMenuMetrics.settingsItemClicked.record(NoExtras())

                navController.nav(
                    R.id.homeFragment,
                    HomeFragmentDirections.actionGlobalSettingsFragment()
                )
            }
            HomeMenu.Item.CustomizeHome -> {
                HomeScreen.customizeHomeClicked.record(NoExtras())

                navController.nav(
                    R.id.homeFragment,
                    HomeFragmentDirections.actionGlobalHomeSettingsFragment()
                )
            }
            is HomeMenu.Item.SyncAccount -> {
                navController.nav(
                    R.id.homeFragment,
                    when (item.accountState) {
                        AccountState.AUTHENTICATED ->
                            HomeFragmentDirections.actionGlobalAccountSettingsFragment()
                        AccountState.NEEDS_REAUTHENTICATION ->
                            HomeFragmentDirections.actionGlobalAccountProblemFragment()
                        AccountState.NO_ACCOUNT ->
                            HomeFragmentDirections.actionGlobalTurnOnSync()
                    }
                )
            }
            HomeMenu.Item.ManageAccountAndDevices -> {
                homeActivity.openToBrowserAndLoad(
                    searchTermOrURL =
                    if (context.settings().allowDomesticChinaFxaServer) {
                        mozilla.appservices.fxaclient.Config.Server.CHINA.contentUrl + "/settings"
                    } else {
                        mozilla.appservices.fxaclient.Config.Server.RELEASE.contentUrl + "/settings"
                    },
                    newTab = true,
                    from = BrowserDirection.FromHome
                )
            }
            HomeMenu.Item.Bookmarks -> {
                navController.nav(
                    R.id.homeFragment,
                    HomeFragmentDirections.actionGlobalBookmarkFragment(BookmarkRoot.Mobile.id)
                )
            }
            HomeMenu.Item.History -> {
                navController.nav(
                    R.id.homeFragment,
                    HomeFragmentDirections.actionGlobalHistoryFragment()
                )
            }
            HomeMenu.Item.Downloads -> {
                navController.nav(
                    R.id.homeFragment,
                    HomeFragmentDirections.actionGlobalDownloadsFragment()
                )
            }
            HomeMenu.Item.Help -> {
                homeActivity.openToBrowserAndLoad(
                    searchTermOrURL = SupportUtils.getSumoURLForTopic(
                        context = context,
                        topic = SupportUtils.SumoTopic.HELP
                    ),
                    newTab = true,
                    from = BrowserDirection.FromHome
                )
            }
            HomeMenu.Item.WhatsNew -> {
                WhatsNew.userViewedWhatsNew(context)
                Events.whatsNewTapped.record(NoExtras())

                homeActivity.openToBrowserAndLoad(
                    searchTermOrURL = SupportUtils.getWhatsNewUrl(context),
                    newTab = true,
                    from = BrowserDirection.FromHome
                )
            }
            HomeMenu.Item.Quit -> {
                // We need to show the snackbar while the browsing data is deleting (if "Delete
                // browsing data on quit" is activated). After the deletion is over, the snackbar
                // is dismissed.
                deleteAndQuit(
                    activity = homeActivity,
                    coroutineScope = lifecycleOwner.lifecycleScope,
                    snackbar = FenixSnackbar.make(
                        view = view,
                        isDisplayedWithBrowserToolbar = false
                    )
                )
            }
            HomeMenu.Item.ReconnectSync -> {
                navController.nav(
                    R.id.homeFragment,
                    HomeFragmentDirections.actionGlobalAccountProblemFragment()
                )
            }
            HomeMenu.Item.Extensions -> {
                navController.nav(
                    R.id.homeFragment,
                    HomeFragmentDirections.actionGlobalAddonsManagementFragment()
                )
            }
            is HomeMenu.Item.DesktopMode -> {
                context.settings().openNextTabInDesktopMode = item.checked
            }
        }
    }
}
