/* 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/. */

@file:Suppress("TooManyFunctions")

package org.mozilla.fenix.ui.robots

import androidx.recyclerview.widget.RecyclerView
import androidx.test.espresso.Espresso.onView
import androidx.test.espresso.action.ViewActions
import androidx.test.espresso.action.ViewActions.click
import androidx.test.espresso.assertion.ViewAssertions.doesNotExist
import androidx.test.espresso.assertion.ViewAssertions.matches
import androidx.test.espresso.contrib.RecyclerViewActions
import androidx.test.espresso.matcher.ViewMatchers
import androidx.test.espresso.matcher.ViewMatchers.Visibility
import androidx.test.espresso.matcher.ViewMatchers.isDisplayed
import androidx.test.espresso.matcher.ViewMatchers.withEffectiveVisibility
import androidx.test.espresso.matcher.ViewMatchers.withText
import androidx.test.espresso.matcher.ViewMatchers.withId
import androidx.test.platform.app.InstrumentationRegistry
import androidx.test.uiautomator.Until
import androidx.test.uiautomator.By
import androidx.test.uiautomator.UiDevice
import androidx.test.uiautomator.UiScrollable
import androidx.test.uiautomator.UiSelector
import org.hamcrest.CoreMatchers
import org.hamcrest.Matchers.allOf
import org.hamcrest.Matchers.containsString
import org.mozilla.fenix.R
import org.mozilla.fenix.helpers.click
import org.mozilla.fenix.helpers.TestAssetHelper.waitingTime
import org.mozilla.fenix.helpers.ext.waitNotNull

/**
 * Implementation of Robot Pattern for the home screen menu.
 */
class HomeScreenRobot {
    fun verifyNavigationToolbar() = assertNavigationToolbar()
    fun verifyHomeScreen() = assertHomeScreen()
    fun verifyHomePrivateBrowsingButton() = assertHomePrivateBrowsingButton()
    fun verifyHomeMenu() = assertHomeMenu()
    fun verifyOpenTabsHeader() = assertOpenTabsHeader()
    fun verifyAddTabButton() = assertAddTabButton()
    fun verifyNoTabsOpenedText() = assertNoTabsOpenedText()
    fun verifyCollectionsHeader() = assertCollectionsHeader()
    fun verifyNoCollectionsHeader() = assertNoCollectionsHeader()
    fun verifyNoCollectionsText() = assertNoCollectionsText()
    fun verifyNoTabsOpenedHeader() = assertNoTabsOpenedHeader()
    fun verifyHomeWordmark() = assertHomeWordmark()
    fun verifyHomeToolbar() = assertHomeToolbar()
    fun verifyHomeComponent() = assertHomeComponent()

    // First Run elements
    fun verifyWelcomeHeader() = assertWelcomeHeader()

    fun verifyGetTheMostHeader() = assertGetTheMostHeader()
    fun verifyAccountsSignInButton() = assertAccountsSignInButton()
    fun verifyGetToKnowHeader() = assertGetToKnowHeader()
    fun verifyChooseThemeHeader() = assertChooseThemeHeader()
    fun verifyChooseThemeText() = assertChooseThemeText()
    fun verifyLightThemeToggle() = assertLightThemeToggle()
    fun verifyLightThemeDescription() = assertLightThemeDescription()
    fun verifyDarkThemeToggle() = assertDarkThemeToggle()
    fun verifyDarkThemeDescription() = assertDarkThemeDescription()
    fun verifyAutomaticThemeToggle() = assertAutomaticThemeToggle()
    fun verifyAutomaticThemeDescription() = assertAutomaticThemeDescription()
    fun verifyProtectYourselfHeader() = assertProtectYourselfHeader()
    fun verifyTrackingProtectionToggle() = assertTrackingProtectionToggle()
    fun verifyProtectYourselfText() = assertProtectYourselfText()

    fun verifyBrowsePrivatelyHeader() = assertBrowsePrivatelyHeader()
    fun verifyBrowsePrivatelyText() = assertBrowsePrivatelyText()
    fun verifyYourPrivacyHeader() = assertYourPrivacyHeader()
    fun verifyYourPrivacyText() = assertYourPrivacyText()
    fun verifyPrivacyNoticeButton() = assertPrivacyNoticeButton()
    fun verifyStartBrowsingButton() = assertStartBrowsingButton()

    // Private mode elements
    fun verifyPrivateSessionHeader() = assertPrivateSessionHeader()
    fun verifyPrivateSessionMessage(visible: Boolean = true) = assertPrivateSessionMessage(visible)
    fun verifyShareTabsButton(visible: Boolean = true) = assertShareTabsButton(visible)
    fun verifyCloseTabsButton(visible: Boolean = true) = assertCloseTabsButton(visible)

    fun verifyExistingTabList() = assertExistingTabList()
    fun verifyExistingOpenTabs(title: String) = assertExistingOpenTabs(title)

    // Collections element
    fun clickCollectionThreeDotButton() {
        collectionThreeDotButton().click()
        mDevice.waitNotNull(Until.findObject(By.text("Delete collection")), waitingTime)
    }
    fun selectRenameCollection() {
        onView(allOf(ViewMatchers.withText("Rename collection"))).click()
        mDevice.waitNotNull(Until.findObject(By.res("name_collection_edittext")))
    }
    fun selectDeleteCollection() {
        onView(allOf(ViewMatchers.withText("Delete collection"))).click()
        mDevice.waitNotNull(Until.findObject(By.res("message")), waitingTime)
    }
    fun confirmDeleteCollection() {
        onView(allOf(ViewMatchers.withText("DELETE"))).click()
        mDevice.waitNotNull(Until.findObject(By.res("collections_header")), waitingTime)
    }
    fun typeCollectionName(name: String) {
        mDevice.wait(Until.findObject(By.res("name_collection_edittext")), waitingTime)

        collectionNameTextField().perform(ViewActions.replaceText(name))
        collectionNameTextField().perform(ViewActions.pressImeActionButton())
    }
    fun scrollToElementByText(text: String): UiScrollable {
        val appView = UiScrollable(UiSelector().scrollable(true))
        appView.scrollTextIntoView(text)
        return appView
    }
    fun swipeUpToDismissFirstRun() {
        scrollToElementByText("Start browsing")
    }

    fun closeTab() {
        closeTabButton().click()
    }

    fun togglePrivateBrowsingModeOnOff() {
        onView(ViewMatchers.withResourceName("privateBrowsingButton"))
                .perform(click())
    }

    fun swipeToBottom() = onView(ViewMatchers.withId(R.id.home_component)).perform(ViewActions.swipeUp())

    fun swipeToTop() = onView(ViewMatchers.withId(R.id.home_component)).perform(ViewActions.swipeDown())

    class Transition {
        val mDevice = UiDevice.getInstance(InstrumentationRegistry.getInstrumentation())

        fun openThreeDotMenu(interact: ThreeDotMenuMainRobot.() -> Unit): ThreeDotMenuMainRobot.Transition {
            threeDotButton().perform(click())

            ThreeDotMenuMainRobot().interact()
            return ThreeDotMenuMainRobot.Transition()
        }

        fun openSearch(interact: SearchRobot.() -> Unit): SearchRobot.Transition {
            navigationToolbar().perform(click())

            SearchRobot().interact()
            return SearchRobot.Transition()
        }

        fun dismissOnboarding() {
            openThreeDotMenu { }.openSettings { }.goBack { }
        }

        fun addNewTab() {
            openSearch { }.openBrowser { }.openHomeScreen { }
        }

        fun togglePrivateBrowsingMode() {
            onView(ViewMatchers.withResourceName("privateBrowsingButton"))
                .perform(click())
        }

        fun openTabsListThreeDotMenu(interact: ThreeDotMenuMainRobot.() -> Unit): ThreeDotMenuMainRobot.Transition {
            tabsListThreeDotButton().perform(click())

            ThreeDotMenuMainRobot().interact()
            return ThreeDotMenuMainRobot.Transition()
        }
    }
}

fun homeScreen(interact: HomeScreenRobot.() -> Unit): HomeScreenRobot.Transition {
    HomeScreenRobot().interact()
    return HomeScreenRobot.Transition()
}

val mDevice = UiDevice.getInstance(InstrumentationRegistry.getInstrumentation())

private fun navigationToolbar() =
    onView(CoreMatchers.allOf(withText("Search or enter address")))

private fun closeTabButton() = onView(withId(R.id.close_tab_button))

private fun assertNavigationToolbar() =
    onView(CoreMatchers.allOf(withText("Search or enter address")))
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertHomeScreen() = onView(ViewMatchers.withResourceName("homeLayout"))
    .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertHomeMenu() = onView(ViewMatchers.withResourceName("menuButton"))
    .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertHomePrivateBrowsingButton() =
    onView(ViewMatchers.withResourceName("privateBrowsingButton"))
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertHomeWordmark() = onView(ViewMatchers.withResourceName("wordmark"))
    .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertHomeToolbar() = onView(ViewMatchers.withResourceName("toolbar"))
    .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertOpenTabsHeader() =
    onView(CoreMatchers.allOf(withText("Open tabs")))
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertAddTabButton() =
    onView(CoreMatchers.allOf(withId(R.id.add_tab_button), isDisplayed()))
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertNoTabsOpenedHeader() =
    onView(CoreMatchers.allOf(withText("No open tabs")))
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertNoTabsOpenedText() {
    onView(CoreMatchers.allOf(withText("Your open tabs will be shown here.")))
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))
}

private fun assertCollectionsHeader() =
    onView(CoreMatchers.allOf(withText("Collections")))
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertNoCollectionsHeader() =
    onView(CoreMatchers.allOf(withText("No collections")))
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertNoCollectionsText() =
    onView(
        CoreMatchers.allOf(
            withText("Collect the things that matter to you. To start, save open tabs to a new collection.")
        )
    )
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertHomeComponent() = onView(ViewMatchers.withResourceName("home_component"))
    .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun threeDotButton() = onView(allOf(withId(R.id.menuButton)))

// First Run elements
private fun assertWelcomeHeader() =
    onView(CoreMatchers.allOf(withText("Welcome to Firefox Preview!")))
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertGetTheMostHeader() =
    onView(CoreMatchers.allOf(withText("Get the most out of Firefox Preview.")))
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertAccountsSignInButton() =
    onView(ViewMatchers.withResourceName("turn_on_sync_button"))
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertGetToKnowHeader() =
    onView(CoreMatchers.allOf(withText("Get to know Firefox Preview")))
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertChooseThemeHeader() =
    onView(CoreMatchers.allOf(withText("Choose your theme")))
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertChooseThemeText() =
    onView(CoreMatchers.allOf(withText("Try dark theme: easier on your battery and your eyes.")))
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertLightThemeToggle() =
    onView(ViewMatchers.withResourceName("theme_light_radio_button"))
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertLightThemeDescription() =
    onView(CoreMatchers.allOf(withText("Light theme")))
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertDarkThemeToggle() =
    onView(ViewMatchers.withResourceName("theme_dark_radio_button"))
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertDarkThemeDescription() =
    onView(CoreMatchers.allOf(withText("Dark theme")))
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertAutomaticThemeToggle() =
    onView(ViewMatchers.withResourceName("theme_automatic_radio_button"))
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertAutomaticThemeDescription() =
    onView(CoreMatchers.allOf(withText("Automatic")))
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertProtectYourselfHeader() =
    onView(CoreMatchers.allOf(withText("Protect yourself")))
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertTrackingProtectionToggle() = onView(
    CoreMatchers.allOf(ViewMatchers.withResourceName("tracking_protection_toggle"))
)
    .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertProtectYourselfText() {
    onView(
        CoreMatchers.allOf(
            withText(
                "Firefox Preview blocks ad trackers that follow you around the web."
            )
        )
    )
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))
}

private fun assertBrowsePrivatelyHeader() =
    onView(CoreMatchers.allOf(withText("Browse privately")))
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertBrowsePrivatelyText() =
    onView(CoreMatchers.allOf(withText(containsString("private browsing is just a tap away."))))
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertYourPrivacyHeader() =
    onView(CoreMatchers.allOf(withText("Your privacy")))
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertYourPrivacyText() =
    onView(CoreMatchers.allOf(withText(
        "We’ve designed Firefox Preview to give you control over what you share online and what you share with us.")))
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertPrivacyNoticeButton() =
    onView(CoreMatchers.allOf(withText("Read our privacy notice")))
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertStartBrowsingButton() =
    onView(CoreMatchers.allOf(withText("Start browsing")))
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

// Private mode elements
private fun assertPrivateSessionHeader() =
    onView(CoreMatchers.allOf(withText("Private tabs")))
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

const val PRIVATE_SESSION_MESSAGE = "Firefox Preview clears your search and browsing history " +
        "when you quit the app or close all private tabs. While this doesn’t make you anonymous to websites or " +
        "your internet service provider, it makes it easier to keep what you do online private from anyone else " +
        "who uses this device."

private fun assertPrivateSessionMessage(visible: Boolean) =
    onView(CoreMatchers.allOf(withText(PRIVATE_SESSION_MESSAGE)))
        .check(
            if (visible) matches(withEffectiveVisibility(Visibility.VISIBLE)) else doesNotExist()
        )

private fun assertShareTabsButton(visible: Boolean) =
    onView(CoreMatchers.allOf(withId(R.id.share_tabs_button), isDisplayed()))
        .check(matches(withEffectiveVisibility(visibleOrGone(visible))))

private fun assertCloseTabsButton(visible: Boolean) =
    onView(CoreMatchers.allOf(withId(R.id.close_tab_button), isDisplayed()))
        .check(matches(withEffectiveVisibility(visibleOrGone(visible))))

private fun visibleOrGone(visibility: Boolean) = if (visibility) Visibility.VISIBLE else Visibility.GONE

private fun assertExistingTabList() =
    onView(CoreMatchers.allOf(withId(R.id.item_tab)))
        .check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun assertExistingOpenTabs(title: String) =
    onView(withId(R.id.home_component)).perform(
        RecyclerViewActions.scrollTo<RecyclerView.ViewHolder>(
            ViewMatchers.hasDescendant(withText(title))
        )
    ).check(matches(withEffectiveVisibility(Visibility.VISIBLE)))

private fun tabsListThreeDotButton() = onView(allOf(withId(R.id.tabs_overflow_button)))

private fun collectionThreeDotButton() = onView(allOf(withId(R.id.collection_overflow_button)))

private fun collectionNameTextField() = onView(allOf(ViewMatchers.withResourceName("name_collection_edittext")))