/*
 * Copyright (C) 2019 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.protolog.tool

import com.android.json.stream.JsonReader
import com.android.protolog.tool.ViewerConfigBuilder.LogCall
import org.junit.Assert.assertEquals
import org.junit.Test
import org.mockito.Mockito
import java.io.StringReader

class ViewerConfigBuilderTest {
    companion object {
        private val TAG1 = "WM_TEST"
        private val TAG2 = "WM_DEBUG"
        private val TEST1 = ViewerConfigParser.ConfigEntry("test1", LogLevel.INFO.name, TAG1)
        private val TEST2 = ViewerConfigParser.ConfigEntry("test2", LogLevel.DEBUG.name, TAG2)
        private val TEST3 = ViewerConfigParser.ConfigEntry("test3", LogLevel.ERROR.name, TAG2)
        private val GROUP1 = LogGroup("TEST_GROUP", true, true, TAG1)
        private val GROUP2 = LogGroup("DEBUG_GROUP", true, true, TAG2)
        private val GROUP3 = LogGroup("DEBUG_GROUP", true, true, TAG2)
        private val GROUP_DISABLED = LogGroup("DEBUG_GROUP", false, true, TAG2)
        private val GROUP_TEXT_DISABLED = LogGroup("DEBUG_GROUP", true, false, TAG2)
        private const val PATH = "/tmp/test.java"
    }

    private val configBuilder = ViewerConfigBuilder(Mockito.mock(ProtoLogCallProcessor::class.java))

    private fun parseConfig(json: String): Map<Int, ViewerConfigParser.ConfigEntry> {
        return ViewerConfigParser().parseConfig(JsonReader(StringReader(json)))
    }

    @Test
    fun processClass() {
        configBuilder.addLogCalls(listOf(
                LogCall(TEST1.messageString, LogLevel.INFO, GROUP1, PATH),
                LogCall(TEST2.messageString, LogLevel.DEBUG, GROUP2, PATH),
                LogCall(TEST3.messageString, LogLevel.ERROR, GROUP3, PATH)).withContext())

        val parsedConfig = parseConfig(configBuilder.build())
        assertEquals(3, parsedConfig.size)
        assertEquals(TEST1, parsedConfig[CodeUtils.hash(PATH,
	           TEST1.messageString, LogLevel.INFO, GROUP1)])
        assertEquals(TEST2, parsedConfig[CodeUtils.hash(PATH, TEST2.messageString,
	           LogLevel.DEBUG, GROUP2)])
        assertEquals(TEST3, parsedConfig[CodeUtils.hash(PATH, TEST3.messageString,
	           LogLevel.ERROR, GROUP3)])
    }

    @Test
    fun processClass_nonUnique() {
        configBuilder.addLogCalls(listOf(
                LogCall(TEST1.messageString, LogLevel.INFO, GROUP1, PATH),
                LogCall(TEST1.messageString, LogLevel.INFO, GROUP1, PATH),
                LogCall(TEST1.messageString, LogLevel.INFO, GROUP1, PATH)).withContext())

        val parsedConfig = parseConfig(configBuilder.build())
        assertEquals(1, parsedConfig.size)
        assertEquals(TEST1, parsedConfig[CodeUtils.hash(PATH, TEST1.messageString,
            	   LogLevel.INFO, GROUP1)])
    }

    @Test
    fun processClass_disabled() {
        configBuilder.addLogCalls(listOf(
                LogCall(TEST1.messageString, LogLevel.INFO, GROUP1, PATH),
                LogCall(TEST2.messageString, LogLevel.DEBUG, GROUP_DISABLED, PATH),
                LogCall(TEST3.messageString, LogLevel.ERROR, GROUP_TEXT_DISABLED, PATH))
                .withContext())

        val parsedConfig = parseConfig(configBuilder.build())
        assertEquals(2, parsedConfig.size)
        assertEquals(TEST1, parsedConfig[CodeUtils.hash(
                PATH, TEST1.messageString, LogLevel.INFO, GROUP1)])
        assertEquals(TEST3, parsedConfig[CodeUtils.hash(
                PATH, TEST3.messageString, LogLevel.ERROR, GROUP_TEXT_DISABLED)])
    }

    private fun List<LogCall>.withContext() = map { it to ParsingContext() }
}