/* 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.library.bookmarks

import android.content.ClipData
import android.content.ClipboardManager
import android.content.Context
import androidx.core.content.getSystemService
import androidx.navigation.NavController
import androidx.navigation.NavDestination
import io.mockk.every
import io.mockk.mockk
import io.mockk.mockkStatic
import io.mockk.spyk
import io.mockk.verify
import io.mockk.verifyOrder
import mozilla.components.concept.storage.BookmarkNode
import mozilla.components.concept.storage.BookmarkNodeType
import org.junit.Before
import org.junit.Test
import org.mozilla.fenix.BrowserDirection
import org.mozilla.fenix.FenixApplication
import org.mozilla.fenix.HomeActivity
import org.mozilla.fenix.R
import org.mozilla.fenix.components.FenixSnackbarPresenter
import org.mozilla.fenix.components.Services
import org.mozilla.fenix.components.metrics.Event
import org.mozilla.fenix.components.metrics.MetricController
import org.mozilla.fenix.ext.asActivity
import org.mozilla.fenix.ext.components

class BookmarkFragmentInteractorTest {

    private lateinit var interactor: BookmarkFragmentInteractor

    private val context: Context = mockk(relaxed = true)
    private val navController: NavController = mockk(relaxed = true)
    private val bookmarkStore = spyk(BookmarkStore(BookmarkState(null)))
    private val sharedViewModel: BookmarksSharedViewModel = mockk(relaxed = true)
    private val snackbarPresenter: FenixSnackbarPresenter = mockk(relaxed = true)
    private val deleteBookmarkNodes: (Set<BookmarkNode>, Event) -> Unit = mockk(relaxed = true)

    private val applicationContext: FenixApplication = mockk(relaxed = true)
    private val homeActivity: HomeActivity = mockk(relaxed = true)
    private val metrics: MetricController = mockk(relaxed = true)

    private val item = BookmarkNode(BookmarkNodeType.ITEM, "456", "123", 0, "Mozilla", "http://mozilla.org", null)
    private val separator = BookmarkNode(BookmarkNodeType.SEPARATOR, "789", "123", 1, null, null, null)
    private val subfolder = BookmarkNode(BookmarkNodeType.FOLDER, "987", "123", 0, "Subfolder", null, listOf())
    private val childItem = BookmarkNode(
        BookmarkNodeType.ITEM,
        "987",
        "123",
        2,
        "Firefox",
        "https://www.mozilla.org/en-US/firefox/",
        null
    )
    private val tree = BookmarkNode(
        BookmarkNodeType.FOLDER, "123", null, 0, "Mobile", null, listOf(item, separator, childItem, subfolder)
    )

    @Before
    fun setup() {
        mockkStatic(
            "org.mozilla.fenix.ext.ContextKt",
            "androidx.core.content.ContextCompat",
            "android.content.ClipData"
        )
        every { any<Context>().asActivity() } returns homeActivity
        every { context.applicationContext } returns applicationContext
        every { applicationContext.components.analytics.metrics } returns metrics
        every { navController.currentDestination } returns NavDestination("").apply { id = R.id.bookmarkFragment }
        every { bookmarkStore.dispatch(any()) } returns mockk()

        interactor =
            BookmarkFragmentInteractor(
                context,
                navController,
                bookmarkStore,
                sharedViewModel,
                snackbarPresenter,
                deleteBookmarkNodes
            )
    }

    @Test
    fun `update bookmarks tree`() {
        interactor.change(tree)

        verify {
            bookmarkStore.dispatch(BookmarkAction.Change(tree))
        }
    }

    @Test
    fun `open a bookmark item`() {
        interactor.open(item)

        val url = item.url!!
        verifyOrder {
            homeActivity.openToBrowserAndLoad(
                searchTermOrURL = url,
                newTab = true,
                from = BrowserDirection.FromBookmarks
            )
        }
        metrics.track(Event.OpenedBookmark)
    }

    @Test
    fun `expand a level of bookmarks`() {
        interactor.expand(tree)

        verify {
            navController.navigate(BookmarkFragmentDirections.actionBookmarkFragmentSelf(tree.guid))
        }
    }

    @Test
    fun `switch between bookmark selection modes`() {
        interactor.switchMode(BookmarkState.Mode.Normal)

        verify {
            homeActivity.invalidateOptionsMenu()
        }
    }

    @Test
    fun `press the edit bookmark button`() {
        interactor.edit(item)

        verify {
            navController.navigate(BookmarkFragmentDirections.actionBookmarkFragmentToBookmarkEditFragment(item.guid))
        }
    }

    @Test
    fun `select a bookmark item`() {
        interactor.select(item)

        verify {
            bookmarkStore.dispatch(BookmarkAction.Select(item))
        }
    }

    @Test
    fun `deselect a bookmark item`() {
        interactor.deselect(item)

        verify {
            bookmarkStore.dispatch(BookmarkAction.Deselect(item))
        }
    }

    @Test
    fun `deselectAll bookmark items`() {
        interactor.deselectAll()

        verify {
            bookmarkStore.dispatch(BookmarkAction.DeselectAll)
        }
    }

    @Test
    fun `copy a bookmark item`() {
        val clipboardManager: ClipboardManager = mockk(relaxed = true)
        every { any<Context>().getSystemService<ClipboardManager>() } returns clipboardManager
        every { ClipData.newPlainText(any(), any()) } returns mockk(relaxed = true)

        interactor.copy(item)

        verify {
            metrics.track(Event.CopyBookmark)
        }
    }

    @Test
    fun `share a bookmark item`() {
        interactor.share(item)

        verifyOrder {
            navController.navigate(
                BookmarkFragmentDirections.actionBookmarkFragmentToShareFragment(
                    item.url,
                    item.title
                )
            )
            metrics.track(Event.ShareBookmark)
        }
    }

    @Test
    fun `open a bookmark item in a new tab`() {
        interactor.openInNewTab(item)

        val url = item.url!!
        verifyOrder {
            homeActivity.openToBrowserAndLoad(
                searchTermOrURL = url,
                newTab = true,
                from = BrowserDirection.FromBookmarks
            )
            metrics.track(Event.OpenedBookmarkInNewTab)
        }
    }

    @Test
    fun `open a bookmark item in a private tab`() {
        interactor.openInPrivateTab(item)

        val url = item.url!!
        verifyOrder {
            homeActivity.openToBrowserAndLoad(
                searchTermOrURL = url,
                newTab = true,
                from = BrowserDirection.FromBookmarks
            )
            metrics.track(Event.OpenedBookmarkInPrivateTab)
        }
    }

    @Test
    fun `delete a bookmark item`() {
        interactor.delete(item)

        verify {
            deleteBookmarkNodes(setOf(item), Event.RemoveBookmark)
        }
    }

    @Test
    fun `delete a bookmark folder`() {
        interactor.delete(subfolder)

        verify {
            deleteBookmarkNodes(setOf(subfolder), Event.RemoveBookmarkFolder)
        }
    }

    @Test
    fun `delete multiple bookmarks`() {
        interactor.deleteMulti(setOf(item, subfolder))

        verify {
            deleteBookmarkNodes(setOf(item, subfolder), Event.RemoveBookmarks)
        }
    }

    @Test
    fun `press the back button`() {
        interactor.backPressed()

        verify {
            navController.popBackStack()
        }
    }

    @Test
    fun `clicked sign in on bookmarks screen`() {
        val services: Services = mockk(relaxed = true)
        every { context.components.services } returns services

        interactor.clickedSignIn()

        verify {
            context.components.services
            services.launchPairingSignIn(context, navController)
        }
    }

    @Test
    fun `got signed in signal on bookmarks screen`() {
        interactor.signedIn()

        verify {
            sharedViewModel.signedIn.postValue(true)
        }
    }

    @Test
    fun `got signed out signal on bookmarks screen`() {
        interactor.signedOut()

        verify {
            sharedViewModel.signedIn.postValue(false)
        }
    }
}