/*
 * 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.media.taptotransfer.sender

import androidx.test.ext.junit.runners.AndroidJUnit4
import androidx.test.filters.SmallTest
import com.android.internal.logging.InstanceId
import com.android.systemui.SysuiTestCase
import com.android.systemui.dump.DumpManager
import com.android.systemui.log.LogBuffer
import com.android.systemui.log.LogBufferFactory
import com.android.systemui.log.LogcatEchoTracker
import com.google.common.truth.Truth.assertThat
import java.io.PrintWriter
import java.io.StringWriter
import org.junit.Before
import org.junit.Test
import org.junit.runner.RunWith
import org.mockito.Mockito.mock

@SmallTest
@RunWith(AndroidJUnit4::class)
class MediaTttSenderLoggerTest : SysuiTestCase() {

    private lateinit var buffer: LogBuffer
    private lateinit var logger: MediaTttSenderLogger

    @Before
    fun setUp() {
        buffer =
            LogBufferFactory(DumpManager(), mock(LogcatEchoTracker::class.java))
                .create("buffer", 10)
        logger = MediaTttSenderLogger(buffer)
    }

    @Test
    fun logStateChange_bufferHasDeviceTypeTagAndParamInfo() {
        val stateName = "test state name"
        val id = "test id"
        val packageName = "this.is.a.package"

        logger.logStateChange(stateName, id, packageName)

        val actualString = getStringFromBuffer()
        assertThat(actualString).contains(stateName)
        assertThat(actualString).contains(id)
        assertThat(actualString).contains(packageName)
    }

    @Test
    fun logStateChangeError_hasState() {
        logger.logStateChangeError(3456)

        val actualString = getStringFromBuffer()
        assertThat(actualString).contains("3456")
    }

    @Test
    fun logPackageNotFound_bufferHasPackageName() {
        val packageName = "this.is.a.package"

        logger.logPackageNotFound(packageName)

        val actualString = getStringFromBuffer()
        assertThat(actualString).contains(packageName)
    }

    @Test
    fun logRemovalBypass_bufferHasReasons() {
        val removalReason = "fakeRemovalReason"
        val bypassReason = "fakeBypassReason"

        logger.logRemovalBypass(removalReason, bypassReason)

        val actualString = getStringFromBuffer()
        assertThat(actualString).contains(removalReason)
        assertThat(actualString).contains(bypassReason)
    }

    @Test
    fun logStateMap_bufferHasInfo() {
        val map =
            mapOf(
                "123" to
                    Pair(
                        InstanceId.fakeInstanceId(100),
                        ChipStateSender.ALMOST_CLOSE_TO_START_CAST
                    ),
                "456" to
                    Pair(
                        InstanceId.fakeInstanceId(200),
                        ChipStateSender.TRANSFER_TO_THIS_DEVICE_TRIGGERED
                    ),
            )

        logger.logStateMap(map)

        val actualString = getStringFromBuffer()
        assertThat(actualString).contains("123")
        assertThat(actualString).contains(ChipStateSender.ALMOST_CLOSE_TO_START_CAST.name)
        assertThat(actualString).contains("456")
        assertThat(actualString).contains(ChipStateSender.TRANSFER_TO_THIS_DEVICE_TRIGGERED.name)
    }

    @Test
    fun logStateMapRemoval_bufferHasInfo() {
        logger.logStateMapRemoval("456", "testReason")

        val actualString = getStringFromBuffer()
        assertThat(actualString).contains("456")
        assertThat(actualString).contains("testReason")
    }

    private fun getStringFromBuffer(): String {
        val stringWriter = StringWriter()
        buffer.dump(PrintWriter(stringWriter), tailLength = 0)
        return stringWriter.toString()
    }
}