/*
 * Copyright 2018 the original author or authors.
 *
 * 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 org.gradle.profile

import org.gradle.api.Plugin
import org.gradle.api.initialization.Settings
import org.gradle.initialization.StartParameterBuildOptions
import org.gradle.integtests.fixtures.AbstractIntegrationSpec
import org.gradle.test.fixtures.file.TestFile
import org.gradle.test.fixtures.plugin.PluginBuilder
import org.jsoup.Jsoup
import org.jsoup.nodes.Document
import spock.lang.Issue
import org.gradle.integtests.fixtures.modes.ToBeFixedForIsolatedProjects

class ProfilingIntegrationTest extends AbstractIntegrationSpec {

    @ToBeFixedForIsolatedProjects(because = "profiling aggregates across projects")
    def "can generate profiling report"() {
        given:
        createDirs("a", "b", "c")
        file('settings.gradle') << 'include "a", "b", "c"'
        buildFile << '''
allprojects {
    apply plugin: 'java'
    task fooTask
    task barTask
}
'''
        when:
        executer.withArgument("--profile")
        succeeds("build", "fooTask", "-x", "barTask")

        then:
        def reportFile = findReport()
        Document document = Jsoup.parse(reportFile, null)
        !document.select("TD:contains(:jar)").isEmpty()
        !document.select("TD:contains(:a:jar)").isEmpty()
        !document.select("TD:contains(:b:jar)").isEmpty()
        !document.select("TD:contains(:c:jar)").isEmpty()
        document.text().contains("build fooTask")
        document.text().contains("-x barTask")
        output.contains("See the profiling report at:")
        output.contains("A fine-grained performance profile is available: use the --${StartParameterBuildOptions.BuildScanOption.LONG_OPTION} option.")
    }

    @Issue("https://github.com/gradle/gradle/issues/16872")
    def "can generate profile report when using init script that applies plugin"() {
        given:
        def pluginBuilder = new PluginBuilder(file("plugin"))
        pluginBuilder.addPluginSource("settings-test", "test.SettingsPlugin", """
            package test

            class SettingsPlugin implements $Plugin.name<$Settings.name> {
                void apply($Settings.name settings) {
                    println "Hello from settings plugin"
                }
            }
        """)
        def pluginJar = file("plugin.jar")
        pluginBuilder.publishTo(executer, pluginJar)

        initScriptFile """
            initscript {
                dependencies {
                    classpath files("${pluginJar.name}")
                }
            }
            beforeSettings {
                it.plugins.apply(test.SettingsPlugin)
            }
        """

        settingsFile.touch()

        executer.usingInitScript(initScriptFile)
        executer.withArgument("--profile")

        when:
        succeeds 'help'
        then:
        output.contains("Hello from settings plugin")
        findReport()
    }


    private TestFile findReport() {
        def reportFile = file('build/reports/profile').listFiles().find { it.name ==~ /profile-.+.html/ }
        assert reportFile && reportFile.exists()
        reportFile
    }
}
