package fr.free.nrw.commons

import androidx.test.espresso.Espresso.onView
import androidx.test.espresso.action.ViewActions
import androidx.test.espresso.assertion.ViewAssertions.matches
import androidx.test.espresso.matcher.ViewMatchers.isDisplayed
import androidx.test.espresso.matcher.ViewMatchers.withId
import androidx.test.ext.junit.runners.AndroidJUnit4
import androidx.test.filters.LargeTest
import androidx.test.platform.app.InstrumentationRegistry
import androidx.test.rule.ActivityTestRule
import androidx.test.uiautomator.UiDevice
import androidx.viewpager.widget.ViewPager
import fr.free.nrw.commons.utils.ConfigUtils
import org.hamcrest.core.IsNot.not
import org.junit.Before
import org.junit.Rule
import org.junit.Test
import org.junit.runner.RunWith
import org.hamcrest.MatcherAssert.assertThat
import org.hamcrest.CoreMatchers.equalTo

@LargeTest
@RunWith(AndroidJUnit4::class)
class WelcomeActivityTest {
    @get:Rule
    var activityRule: ActivityTestRule<*> = ActivityTestRule(WelcomeActivity::class.java)

    private val device: UiDevice = UiDevice.getInstance(InstrumentationRegistry.getInstrumentation())

    @Before
    fun setup() {
        device.setOrientationNatural()
        device.freezeRotation()
    }

    @Test
    fun ifBetaShowsSkipButton() {
        if (ConfigUtils.isBetaFlavour) {
            onView(withId(R.id.button_ok))
                .perform(ViewActions.click())
            onView(withId(R.id.finishTutorialButton))
                .check(matches(isDisplayed()))
        }
    }

    @Test
    fun ifProdHidesSkipButton() {
        if (!ConfigUtils.isBetaFlavour) {
            onView(withId(R.id.button_ok))
                .perform(ViewActions.click())
            onView(withId(R.id.finishTutorialButton))
                .check(matches(not(isDisplayed())))
        }
    }

    @Test
    fun testBetaSkipButton() {
        if (ConfigUtils.isBetaFlavour) {
            onView(withId(R.id.button_ok))
                .perform(ViewActions.click())
            onView(withId(R.id.finishTutorialButton))
                .perform(ViewActions.click())
            assertThat(activityRule.activity.isDestroyed, equalTo(true))
        }
    }

    @Test
    fun testSwipingOnce() {
        onView(withId(R.id.button_ok))
            .perform(ViewActions.click())
        onView(withId(R.id.welcomePager))
            .perform(ViewActions.swipeLeft())
        assertThat(true, equalTo(true))
        onView(withId(R.id.welcomePager))
            .perform(ViewActions.swipeRight())
        assertThat(true, equalTo(true))
    }

    @Test
    fun testSwipingWholeTutorial() {
        onView(withId(R.id.button_ok))
            .perform(ViewActions.click())
        onView(withId(R.id.welcomePager))
            .perform(ViewActions.swipeLeft())
            .perform(ViewActions.swipeLeft())
            .perform(ViewActions.swipeLeft())
            .perform(ViewActions.swipeLeft())
        assertThat(true, equalTo(true))
        onView(withId(R.id.welcomePager))
            .perform(ViewActions.swipeRight())
            .perform(ViewActions.swipeRight())
            .perform(ViewActions.swipeRight())
            .perform(ViewActions.swipeRight())
        assertThat(true, equalTo(true))
    }

    @Test
    fun swipeBeyondBounds() {
        val viewPager = activityRule.activity.findViewById<ViewPager>(R.id.welcomePager)

        viewPager.adapter?.let {
            if (viewPager.currentItem == 3) {
                onView(withId(R.id.welcomePager))
                    .perform(ViewActions.swipeLeft())
                assertThat(true, equalTo(true))
                onView(withId(R.id.welcomePager))
                    .perform(ViewActions.swipeRight())
                assertThat(true, equalTo(true))
            }
        }
    }

    @Test
    fun swipeTillLastAndFinish() {
        val viewPager = activityRule.activity.findViewById<ViewPager>(R.id.welcomePager)

        viewPager.adapter?.let {
            if (viewPager.currentItem == 3) {
                onView(withId(R.id.button_ok))
                    .perform(ViewActions.click())
                onView(withId(R.id.finishTutorialButton))
                    .perform(ViewActions.click())
                assertThat(activityRule.activity.isDestroyed, equalTo(true))
            }
        }
    }

    @Test
    fun orientationChange() {
        UITestHelper.changeOrientation(activityRule)
    }
}