/*
 * Copyright (C) 2022 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.systemui.util

import android.content.DialogInterface
import android.content.DialogInterface.BUTTON_NEGATIVE
import android.content.DialogInterface.BUTTON_NEUTRAL
import android.content.DialogInterface.BUTTON_POSITIVE
import android.testing.TestableLooper
import androidx.test.ext.junit.runners.AndroidJUnit4
import androidx.test.filters.SmallTest
import com.android.systemui.SysuiTestCase
import com.android.systemui.util.mockito.any
import com.android.systemui.util.mockito.mock
import com.google.common.truth.Truth.assertThat
import org.junit.Assert
import org.junit.Assert.assertThrows
import org.junit.Test
import org.junit.runner.RunWith
import org.mockito.Mockito.anyInt
import org.mockito.Mockito.inOrder
import org.mockito.Mockito.never
import org.mockito.Mockito.verify

@SmallTest
@RunWith(AndroidJUnit4::class)
@TestableLooper.RunWithLooper
class TestableAlertDialogTest : SysuiTestCase() {

    @Test
    fun dialogNotShowingWhenCreated() {
        val dialog = TestableAlertDialog(context)

        assertThat(dialog.isShowing).isFalse()
    }

    @Test
    fun dialogShownDoesntCrash() {
        val dialog = TestableAlertDialog(context)

        dialog.show()
    }

    @Test
    fun dialogShowing() {
        val dialog = TestableAlertDialog(context)

        dialog.show()

        assertThat(dialog.isShowing).isTrue()
    }

    @Test
    fun showListenerCalled() {
        val dialog = TestableAlertDialog(context)
        val listener: DialogInterface.OnShowListener = mock()
        dialog.setOnShowListener(listener)

        dialog.show()

        verify(listener).onShow(dialog)
    }

    @Test
    fun showListenerRemoved() {
        val dialog = TestableAlertDialog(context)
        val listener: DialogInterface.OnShowListener = mock()
        dialog.setOnShowListener(listener)
        dialog.setOnShowListener(null)

        dialog.show()

        verify(listener, never()).onShow(any())
    }

    @Test
    fun dialogHiddenNotShowing() {
        val dialog = TestableAlertDialog(context)

        dialog.show()
        dialog.hide()

        assertThat(dialog.isShowing).isFalse()
    }

    @Test
    fun dialogDismissNotShowing() {
        val dialog = TestableAlertDialog(context)

        dialog.show()
        dialog.dismiss()

        assertThat(dialog.isShowing).isFalse()
    }

    @Test
    fun dismissListenerCalled_ifShowing() {
        val dialog = TestableAlertDialog(context)
        val listener: DialogInterface.OnDismissListener = mock()
        dialog.setOnDismissListener(listener)

        dialog.show()
        dialog.dismiss()

        verify(listener).onDismiss(dialog)
    }

    @Test
    fun dismissListenerNotCalled_ifNotShowing() {
        val dialog = TestableAlertDialog(context)
        val listener: DialogInterface.OnDismissListener = mock()
        dialog.setOnDismissListener(listener)

        dialog.dismiss()

        verify(listener, never()).onDismiss(any())
    }

    @Test
    fun dismissListenerRemoved() {
        val dialog = TestableAlertDialog(context)
        val listener: DialogInterface.OnDismissListener = mock()
        dialog.setOnDismissListener(listener)
        dialog.setOnDismissListener(null)

        dialog.show()
        dialog.dismiss()

        verify(listener, never()).onDismiss(any())
    }

    @Test
    fun cancelListenerCalled_showing() {
        val dialog = TestableAlertDialog(context)
        val listener: DialogInterface.OnCancelListener = mock()
        dialog.setOnCancelListener(listener)

        dialog.show()
        dialog.cancel()

        verify(listener).onCancel(dialog)
    }

    @Test
    fun cancelListenerCalled_notShowing() {
        val dialog = TestableAlertDialog(context)
        val listener: DialogInterface.OnCancelListener = mock()
        dialog.setOnCancelListener(listener)

        dialog.cancel()

        verify(listener).onCancel(dialog)
    }

    @Test
    fun dismissCalledOnCancel_showing() {
        val dialog = TestableAlertDialog(context)
        val listener: DialogInterface.OnDismissListener = mock()
        dialog.setOnDismissListener(listener)

        dialog.show()
        dialog.cancel()

        verify(listener).onDismiss(dialog)
    }

    @Test
    fun dialogCancelNotShowing() {
        val dialog = TestableAlertDialog(context)

        dialog.show()
        dialog.cancel()

        assertThat(dialog.isShowing).isFalse()
    }

    @Test
    fun cancelListenerRemoved() {
        val dialog = TestableAlertDialog(context)
        val listener: DialogInterface.OnCancelListener = mock()
        dialog.setOnCancelListener(listener)
        dialog.setOnCancelListener(null)

        dialog.show()
        dialog.cancel()

        verify(listener, never()).onCancel(any())
    }

    @Test
    fun positiveButtonClick() {
        val dialog = TestableAlertDialog(context)
        val listener: DialogInterface.OnClickListener = mock()
        dialog.setButton(BUTTON_POSITIVE, "", listener)

        dialog.show()
        dialog.clickButton(BUTTON_POSITIVE)

        verify(listener).onClick(dialog, BUTTON_POSITIVE)
    }

    @Test
    fun positiveButtonListener_noCalledWhenClickOtherButtons() {
        val dialog = TestableAlertDialog(context)
        val listener: DialogInterface.OnClickListener = mock()
        dialog.setButton(BUTTON_POSITIVE, "", listener)

        dialog.show()
        dialog.clickButton(BUTTON_NEUTRAL)
        dialog.clickButton(BUTTON_NEGATIVE)

        verify(listener, never()).onClick(any(), anyInt())
    }

    @Test
    fun negativeButtonClick() {
        val dialog = TestableAlertDialog(context)
        val listener: DialogInterface.OnClickListener = mock()
        dialog.setButton(BUTTON_NEGATIVE, "", listener)

        dialog.show()
        dialog.clickButton(BUTTON_NEGATIVE)

        verify(listener).onClick(dialog, DialogInterface.BUTTON_NEGATIVE)
    }

    @Test
    fun negativeButtonListener_noCalledWhenClickOtherButtons() {
        val dialog = TestableAlertDialog(context)
        val listener: DialogInterface.OnClickListener = mock()
        dialog.setButton(BUTTON_NEGATIVE, "", listener)

        dialog.show()
        dialog.clickButton(BUTTON_NEUTRAL)
        dialog.clickButton(BUTTON_POSITIVE)

        verify(listener, never()).onClick(any(), anyInt())
    }

    @Test
    fun neutralButtonClick() {
        val dialog = TestableAlertDialog(context)
        val listener: DialogInterface.OnClickListener = mock()
        dialog.setButton(BUTTON_NEUTRAL, "", listener)

        dialog.show()
        dialog.clickButton(BUTTON_NEUTRAL)

        verify(listener).onClick(dialog, BUTTON_NEUTRAL)
    }

    @Test
    fun neutralButtonListener_noCalledWhenClickOtherButtons() {
        val dialog = TestableAlertDialog(context)
        val listener: DialogInterface.OnClickListener = mock()
        dialog.setButton(BUTTON_NEUTRAL, "", listener)

        dialog.show()
        dialog.clickButton(BUTTON_POSITIVE)
        dialog.clickButton(BUTTON_NEGATIVE)

        verify(listener, never()).onClick(any(), anyInt())
    }

    @Test
    fun sameClickListenerCalledCorrectly() {
        val dialog = TestableAlertDialog(context)
        val listener: DialogInterface.OnClickListener = mock()
        dialog.setButton(BUTTON_POSITIVE, "", listener)
        dialog.setButton(BUTTON_NEUTRAL, "", listener)
        dialog.setButton(BUTTON_NEGATIVE, "", listener)

        dialog.show()
        dialog.clickButton(BUTTON_POSITIVE)
        dialog.clickButton(BUTTON_NEGATIVE)
        dialog.clickButton(BUTTON_NEUTRAL)

        val inOrder = inOrder(listener)
        inOrder.verify(listener).onClick(dialog, BUTTON_POSITIVE)
        inOrder.verify(listener).onClick(dialog, BUTTON_NEGATIVE)
        inOrder.verify(listener).onClick(dialog, BUTTON_NEUTRAL)
    }

    @Test
    fun clickBadButton() {
        val dialog = TestableAlertDialog(context)

        assertThrows(IllegalArgumentException::class.java) {
            dialog.clickButton(10000)
        }
    }

    @Test
    fun clickButtonDismisses_positive() {
        val dialog = TestableAlertDialog(context)

        dialog.show()
        dialog.clickButton(BUTTON_POSITIVE)

        assertThat(dialog.isShowing).isFalse()
    }

    @Test
    fun clickButtonDismisses_negative() {
        val dialog = TestableAlertDialog(context)

        dialog.show()
        dialog.clickButton(BUTTON_NEGATIVE)

        assertThat(dialog.isShowing).isFalse()
    }

    @Test
    fun clickButtonDismisses_neutral() {
        val dialog = TestableAlertDialog(context)

        dialog.show()
        dialog.clickButton(BUTTON_NEUTRAL)

        assertThat(dialog.isShowing).isFalse()
    }
}