/* -*- Mode: Groovy; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

// The JNI wrapper generation tasks depend on the JAR creation task of the :annotations project.
evaluationDependsOn(':annotations')

// Whether to include compiled artifacts: `lib/**/*.so` and `assets/omni.ja`.
// Multi-locale packaging wants to include compiled artifacts but *not* rebuild
// them: see also `rootProject.{machStagePackage,geckoBinariesOnlyIf}`.
def hasCompileArtifacts() {
    return project.mozconfig.substs.COMPILE_ENVIRONMENT // Full builds.
        || project.mozconfig.substs.MOZ_ARTIFACT_BUILDS // Artifact builds.
        || System.getenv("MOZ_CHROME_MULTILOCALE") // Multi-locale packaging.
}

ext.configureVariantWithGeckoBinaries = { variant ->
    if (hasCompileArtifacts()) {
        // Local (read, not 'official') builds want to reflect developer changes to
        // the omnijar sources, and (when compiling) to reflect developer changes to
        // the native binaries.  To do this, the Gradle build calls out to the
        // moz.build system, which can be re-entrant.  Official builds are driven by
        // the moz.build system and should never be re-entrant in this way.
        def assetGenTask = tasks.findByName("generate${variant.name.capitalize()}Assets")
        def jniLibFoldersTask = tasks.findByName("merge${variant.name.capitalize()}JniLibFolders")
        if (!mozconfig.substs.MOZILLA_OFFICIAL) {
            assetGenTask.dependsOn rootProject.machStagePackage
            jniLibFoldersTask.dependsOn rootProject.machStagePackage
        }
    }
}

ext.configureLibraryVariantWithJNIWrappers = { variant, module ->
    // BundleLibRuntime prepares the library for further processing to be
    // incorporated in an app. We use this version to create the JNI wrappers.
    def jarTask = tasks["bundleLibRuntimeToJar${variant.name.capitalize()}"]
    def bundleJar = jarTask.outputs.files.find({ it.name == 'classes.jar' })

    def annotationProcessorsJarTask = project(':annotations').jar

    def classpathFilesProvider = variant.javaCompileProvider.flatMap { javaCompileTask ->
        project.provider { javaCompileTask.classpath.files }
    }

    def wrapperTask
    if (System.env.IS_LANGUAGE_REPACK == '1') {
        // Single-locale l10n repacks set `IS_LANGUAGE_REPACK=1` and don't
        // really have a build environment.
        wrapperTask = tasks.register("generateJNIWrappersFor${module}${variant.name.capitalize()}")
    } else {
        wrapperTask = tasks.register("generateJNIWrappersFor${module}${variant.name.capitalize()}", JavaExec) {
            classpath annotationProcessorsJarTask.archiveFile
        
            // Configure the classpath at evaluation-time, not at
            // configuration-time: see above comment.
            doFirst {
                classpath classpathFilesProvider.get()
            }

            mainClass = 'org.mozilla.gecko.annotationProcessors.AnnotationProcessor'
            args module
            args bundleJar
            
            workingDir "${topobjdir}/widget/android"

            inputs.file(bundleJar)
            inputs.file(annotationProcessorsJarTask.archiveFile)
            inputs.property("module", module)

            outputs.dir("${topobjdir}/widget/android/GeneratedJNI")

            dependsOn jarTask
            dependsOn annotationProcessorsJarTask
        }
    }
}