buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:0.11.+'
    }
}

task wrapper(type: Wrapper) {
    gradleVersion = '1.10'
}

evaluationDependsOnChildren();

def getAndroidSdkDirectory() {
  project("library").android.sdkDirectory
}

def getAndroidCompileSdkVersion() {
  project("library").android.compileSdkVersion
}

def getAndroidChildren() {
    subprojects.findAll { project -> project.plugins.hasPlugin('android-library') }
}

// For now this is just [release, debug]
def getAndroidLibraryVariants() {
    getAndroidChildren().collect { project ->
        project.android.libraryVariants
    }.sum().unique{ it.name }
}

// Generate javadocs containing batched documentation for all android library subprojects.
getAndroidLibraryVariants().each { variant ->
    def androidJar = "${getAndroidSdkDirectory()}/platforms/${getAndroidCompileSdkVersion()}/android.jar"
    def destinationDirPath = "${getProjectDir()}/doc/${variant.baseName}"

    task("clean${variant.name.capitalize()}Javadoc", type: Delete) {
        delete destinationDirPath
    }

    task("generate${variant.name.capitalize()}Javadoc", type: Javadoc) {

        // Get the variant from each subproject that matches our current variant's name.
        def childEquivalentChildVariants = getAndroidChildren().collect { project ->
            project.android.libraryVariants.findAll { type -> type.name == variant.name }
        }.sum()

        source = childEquivalentChildVariants.collect { it.javaCompile.source }
        classpath = files(childEquivalentChildVariants.collect { files(it.javaCompile.classpath.files, androidJar) })

        options {
            links("http://docs.oracle.com/javase/7/docs/api/")
            linksOffline("http://d.android.com/reference", "${getAndroidSdkDirectory()}/docs/reference")
        }

        exclude '**/BuildConfig.java'
        exclude '**/R.java'

        destinationDir = new File(destinationDirPath)

        dependsOn("clean${variant.name.capitalize()}Javadoc")
    }
}