/*
 * Copyright (C) 2024 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.intentresolver.ui

import android.app.PendingIntent
import android.compat.testing.PlatformCompatChangeRule
import android.content.ComponentName
import android.content.Intent
import android.os.Process
import android.service.chooser.ChooserResult
import androidx.test.platform.app.InstrumentationRegistry
import com.android.intentresolver.ui.model.ShareAction
import com.google.common.truth.Truth.assertThat
import com.google.common.truth.Truth.assertWithMessage
import kotlinx.coroutines.CompletableDeferred
import kotlinx.coroutines.ExperimentalCoroutinesApi
import kotlinx.coroutines.test.UnconfinedTestDispatcher
import kotlinx.coroutines.test.runCurrent
import kotlinx.coroutines.test.runTest
import libcore.junit.util.compat.CoreCompatChangeRule.DisableCompatChanges
import libcore.junit.util.compat.CoreCompatChangeRule.EnableCompatChanges
import org.junit.Rule
import org.junit.Test
import org.junit.rules.TestRule

@OptIn(ExperimentalCoroutinesApi::class)
class ShareResultSenderImplTest {

    private val context = InstrumentationRegistry.getInstrumentation().context

    @get:Rule val compatChangeRule: TestRule = PlatformCompatChangeRule()

    @OptIn(ExperimentalCoroutinesApi::class)
    @EnableCompatChanges(ChooserResult.SEND_CHOOSER_RESULT)
    @Test
    fun onComponentSelected_chooserResultEnabled() = runTest {
        val pi = PendingIntent.getBroadcast(context, 0, Intent(), PendingIntent.FLAG_IMMUTABLE)
        val deferred = CompletableDeferred<Intent>()
        val intentDispatcher = IntentSenderDispatcher { _, intent -> deferred.complete(intent) }

        val resultSender =
            ShareResultSenderImpl(
                scope = this,
                backgroundDispatcher = UnconfinedTestDispatcher(testScheduler),
                callerUid = Process.myUid(),
                resultSender = pi.intentSender,
                intentDispatcher = intentDispatcher
            )

        resultSender.onComponentSelected(ComponentName("example.com", "Foo"), true, false)
        runCurrent()

        val intentReceived = deferred.await()
        val chooserResult =
            intentReceived.getParcelableExtra(
                Intent.EXTRA_CHOOSER_RESULT,
                ChooserResult::class.java
            )
        assertThat(chooserResult).isNotNull()
        assertThat(chooserResult?.type).isEqualTo(ChooserResult.CHOOSER_RESULT_SELECTED_COMPONENT)
        assertThat(chooserResult?.selectedComponent).isEqualTo(ComponentName("example.com", "Foo"))
        assertThat(chooserResult?.isShortcut).isTrue()
    }

    @OptIn(ExperimentalCoroutinesApi::class)
    @EnableCompatChanges(ChooserResult.SEND_CHOOSER_RESULT)
    @Test
    fun onComponentSelected_crossProfile_chooserResultEnabled() = runTest {
        val pi = PendingIntent.getBroadcast(context, 0, Intent(), PendingIntent.FLAG_IMMUTABLE)
        val deferred = CompletableDeferred<Intent>()
        val intentDispatcher = IntentSenderDispatcher { _, intent -> deferred.complete(intent) }

        val resultSender =
            ShareResultSenderImpl(
                scope = this,
                backgroundDispatcher = UnconfinedTestDispatcher(testScheduler),
                callerUid = Process.myUid(),
                resultSender = pi.intentSender,
                intentDispatcher = intentDispatcher
            )

        // Invoke as in the previous test, but this time say that the selection was cross-profile.
        resultSender.onComponentSelected(ComponentName("example.com", "Foo"), true, true)
        runCurrent()

        val intentReceived = deferred.await()
        val chooserResult =
            intentReceived.getParcelableExtra(
                Intent.EXTRA_CHOOSER_RESULT,
                ChooserResult::class.java
            )
        assertThat(chooserResult).isNotNull()
        assertThat(chooserResult?.type).isEqualTo(ChooserResult.CHOOSER_RESULT_UNKNOWN)
        assertThat(chooserResult?.selectedComponent).isNull()
        assertThat(chooserResult?.isShortcut).isTrue()
        assertThat(intentReceived.hasExtra(Intent.EXTRA_CHOSEN_COMPONENT)).isFalse()
    }

    @DisableCompatChanges(ChooserResult.SEND_CHOOSER_RESULT)
    @Test
    fun onComponentSelected_chooserResultDisabled() = runTest {
        val pi = PendingIntent.getBroadcast(context, 0, Intent(), PendingIntent.FLAG_IMMUTABLE)
        val deferred = CompletableDeferred<Intent>()
        val intentDispatcher = IntentSenderDispatcher { _, intent -> deferred.complete(intent) }

        val resultSender =
            ShareResultSenderImpl(
                scope = this,
                backgroundDispatcher = UnconfinedTestDispatcher(testScheduler),
                callerUid = Process.myUid(),
                resultSender = pi.intentSender,
                intentDispatcher = intentDispatcher
            )

        resultSender.onComponentSelected(ComponentName("example.com", "Foo"), true, false)
        runCurrent()

        val intentReceived = deferred.await()
        val componentName =
            intentReceived.getParcelableExtra(
                Intent.EXTRA_CHOSEN_COMPONENT,
                ComponentName::class.java
            )

        assertWithMessage("EXTRA_CHOSEN_COMPONENT from received intent")
            .that(componentName)
            .isEqualTo(ComponentName("example.com", "Foo"))

        assertWithMessage("received intent has EXTRA_CHOOSER_RESULT")
            .that(intentReceived.hasExtra(Intent.EXTRA_CHOOSER_RESULT))
            .isFalse()
    }

    @DisableCompatChanges(ChooserResult.SEND_CHOOSER_RESULT)
    @Test
    fun onComponentSelected_crossProfile_chooserResultDisabled() = runTest {
        val pi = PendingIntent.getBroadcast(context, 0, Intent(), PendingIntent.FLAG_IMMUTABLE)
        val deferred = CompletableDeferred<Intent>()
        val intentDispatcher = IntentSenderDispatcher { _, intent -> deferred.complete(intent) }

        val resultSender =
            ShareResultSenderImpl(
                scope = this,
                backgroundDispatcher = UnconfinedTestDispatcher(testScheduler),
                callerUid = Process.myUid(),
                resultSender = pi.intentSender,
                intentDispatcher = intentDispatcher
            )

        // Invoke as in the previous test, but this time say that the selection was cross-profile.
        resultSender.onComponentSelected(ComponentName("example.com", "Foo"), true, true)
        runCurrent()

        // In the pre-ChooserResult API, no callback intent is sent for cross-profile selections.
        assertWithMessage("deferred result isComplete").that(deferred.isCompleted).isFalse()
    }

    @EnableCompatChanges(ChooserResult.SEND_CHOOSER_RESULT)
    @Test
    fun onActionSelected_chooserResultEnabled() = runTest {
        val pi = PendingIntent.getBroadcast(context, 0, Intent(), PendingIntent.FLAG_IMMUTABLE)
        val deferred = CompletableDeferred<Intent>()
        val intentDispatcher = IntentSenderDispatcher { _, intent -> deferred.complete(intent) }

        val resultSender =
            ShareResultSenderImpl(
                scope = this,
                backgroundDispatcher = UnconfinedTestDispatcher(testScheduler),
                callerUid = Process.myUid(),
                resultSender = pi.intentSender,
                intentDispatcher = intentDispatcher
            )

        resultSender.onActionSelected(ShareAction.SYSTEM_COPY)
        runCurrent()

        val intentReceived = deferred.await()
        val chosenComponent =
            intentReceived.getParcelableExtra(
                Intent.EXTRA_CHOSEN_COMPONENT,
                ChooserResult::class.java
            )
        assertThat(chosenComponent).isNull()

        val chooserResult =
            intentReceived.getParcelableExtra(
                Intent.EXTRA_CHOOSER_RESULT,
                ChooserResult::class.java
            )
        assertThat(chooserResult).isNotNull()
        assertThat(chooserResult?.type).isEqualTo(ChooserResult.CHOOSER_RESULT_COPY)
        assertThat(chooserResult?.selectedComponent).isNull()
        assertThat(chooserResult?.isShortcut).isFalse()
    }

    @DisableCompatChanges(ChooserResult.SEND_CHOOSER_RESULT)
    @Test
    fun onActionSelected_chooserResultDisabled() = runTest {
        val pi = PendingIntent.getBroadcast(context, 0, Intent(), PendingIntent.FLAG_IMMUTABLE)
        val deferred = CompletableDeferred<Intent>()
        val intentDispatcher = IntentSenderDispatcher { _, intent -> deferred.complete(intent) }

        val resultSender =
            ShareResultSenderImpl(
                scope = this,
                backgroundDispatcher = UnconfinedTestDispatcher(testScheduler),
                callerUid = Process.myUid(),
                resultSender = pi.intentSender,
                intentDispatcher = intentDispatcher
            )

        resultSender.onActionSelected(ShareAction.SYSTEM_COPY)
        runCurrent()

        // No result should have been sent, this should never complete
        assertWithMessage("deferred result isComplete").that(deferred.isCompleted).isFalse()
    }
}