/*
 * Copyright 2018 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 androidx.build

import androidx.build.license.CheckExternalDependencyLicensesTask
import net.ltgt.gradle.errorprone.ErrorProneBasePlugin
import net.ltgt.gradle.errorprone.ErrorProneToolChain
import org.gradle.api.JavaVersion
import org.gradle.api.Plugin
import org.gradle.api.Project
import org.gradle.api.plugins.JavaPluginConvention
import org.gradle.api.tasks.compile.JavaCompile

/**
 * Support java library specific plugin that sets common configurations needed for
 * support library modules.
 */
class SupportJavaLibraryPlugin : Plugin<Project> {

    override fun apply(project: Project) {
        val supportLibraryExtension = project.extensions.create("supportLibrary",
                SupportLibraryExtension::class.java, project)
        apply(project, supportLibraryExtension)

        project.apply(mapOf("plugin" to "java"))
        project.afterEvaluate {
            val convention = project.convention.getPlugin(JavaPluginConvention::class.java)
            if (supportLibraryExtension.java8Library) {
                convention.sourceCompatibility = JavaVersion.VERSION_1_8
                convention.targetCompatibility = JavaVersion.VERSION_1_8
            } else {
                convention.sourceCompatibility = JavaVersion.VERSION_1_7
                convention.targetCompatibility = JavaVersion.VERSION_1_7
            }
            DiffAndDocs.registerJavaProject(project, supportLibraryExtension)
        }

        project.apply(mapOf("plugin" to ErrorProneBasePlugin::class.java))
        val toolChain = ErrorProneToolChain.create(project)
        project.dependencies.add("errorprone", ERROR_PRONE_VERSION)
        val compileTasks = project.tasks.withType(JavaCompile::class.java)
        compileTasks.all { it.configureWithErrorProne(toolChain) }

        setUpSourceJarTaskForJavaProject(project)
        CheckExternalDependencyLicensesTask.configure(project)
    }
}