package community.yuvomi.mobile

import android.content.Context
import android.webkit.WebView
import androidx.test.core.app.ActivityScenario
import androidx.test.core.app.ApplicationProvider
import androidx.test.espresso.Espresso.onView
import androidx.test.espresso.action.ViewActions.click
import androidx.test.espresso.action.ViewActions.closeSoftKeyboard
import androidx.test.espresso.action.ViewActions.replaceText
import androidx.test.espresso.assertion.ViewAssertions.matches
import androidx.test.espresso.matcher.ViewMatchers.hasErrorText
import androidx.test.espresso.matcher.ViewMatchers.isDisplayed
import androidx.test.espresso.matcher.ViewMatchers.isEnabled
import androidx.test.espresso.matcher.ViewMatchers.withContentDescription
import androidx.test.espresso.matcher.ViewMatchers.withText
import androidx.test.ext.junit.runners.AndroidJUnit4
import org.junit.Assert.assertEquals
import org.junit.Assert.assertFalse
import org.junit.Assert.assertNotNull
import org.junit.Assert.assertTrue
import org.junit.Before
import org.junit.Test
import org.junit.runner.RunWith

@RunWith(AndroidJUnit4::class)
class OnboardingTest {
    private val context: Context get() = ApplicationProvider.getApplicationContext()

    @Before fun clearConfiguration() {
        context.getSharedPreferences("server", Context.MODE_PRIVATE).edit().clear().commit()
    }

    @Test fun rejectsHttpAndSubpathsLocally() {
        ActivityScenario.launch(MainActivity::class.java).use {
            onView(
                withContentDescription("Yuvomi server URL"),
            ).perform(replaceText("http://family.example"), closeSoftKeyboard())
            onView(withText("Connect securely")).perform(click())
            onView(
                withContentDescription("Yuvomi server URL"),
            ).check(matches(hasErrorText("Use HTTPS with a valid server hostname.")))
            onView(
                withContentDescription("Yuvomi server URL"),
            ).perform(replaceText("https://family.example/subpath"), closeSoftKeyboard())
            onView(withText("Connect securely")).perform(click())
            onView(
                withContentDescription("Yuvomi server URL"),
            ).check(matches(hasErrorText("Yuvomi requires a dedicated hostname, not a subpath.")))
        }
    }

    @Test fun survivesRecreationWithoutLosingOnboarding() {
        ActivityScenario.launch(MainActivity::class.java).use { scenario ->
            scenario.recreate()
            onView(withText("Connect securely")).check(matches(isDisplayed()))
            onView(withContentDescription("Yuvomi server URL")).check(matches(isEnabled()))
        }
    }

    @Test fun webViewIsHardenedAndBackgroundingPreservesInstance() {
        context.getSharedPreferences("server", Context.MODE_PRIVATE).edit()
            .putString("origin", "https://family.example").commit()
        ActivityScenario.launch(MainActivity::class.java).use { scenario ->
            var initial: WebView? = null
            scenario.onActivity { activity ->
                fun find(view: android.view.View): WebView? {
                    if (view is WebView) return view
                    if (view is android.view.ViewGroup) {
                        for (i in 0 until view.childCount) {
                            find(view.getChildAt(i))?.let {
                                return it
                            }
                        }
                    }
                    return null
                }
                initial = find(activity.window.decorView)
                val web = requireNotNull(initial)
                assertFalse(web.settings.allowFileAccess)
                assertFalse(web.settings.allowContentAccess)
                assertEquals(
                    android.webkit.WebSettings.MIXED_CONTENT_NEVER_ALLOW,
                    web.settings.mixedContentMode,
                )
                assertTrue(web.settings.javaScriptEnabled)
            }
            scenario.moveToState(androidx.lifecycle.Lifecycle.State.CREATED)
            scenario.moveToState(androidx.lifecycle.Lifecycle.State.RESUMED)
            scenario.onActivity { assertNotNull(initial?.parent) }
        }
    }
}