buildscript {
    ext.addRepos(repositories)
    dependencies {
        classpath 'com.google.guava:guava:18.0'
    }
}
import com.google.common.io.Files
import com.google.common.base.Charsets
import com.google.common.hash.HashCode
import com.google.common.hash.HashFunction
import com.google.common.hash.Hashing
import java.nio.charset.Charset


ext.extraVersion = 22
ext.supportRepoOut = ''
ext.buildToolsVersion = '22.1.0'
ext.buildNumber = Integer.toString(ext.extraVersion)

/*
 * With the build server you are given two env variables.
 * The OUT_DIR is a temporary directory you can use to put things during the build.
 * The DIST_DIR is where you want to save things from the build.
 *
 * The build server will copy the contents of DIST_DIR to somewhere and make it available.
 */
if (System.env.DIST_DIR != null && System.env.OUT_DIR != null) {
    buildDir = new File(System.env.OUT_DIR + '/gradle/frameworks/support/build').getCanonicalFile()
    project.ext.distDir = new File(System.env.DIST_DIR).getCanonicalFile()

    // the build server does not pass the build number so we infer it from the last folder of the dist path.
    ext.buildNumber = project.ext.distDir.getName()
} else {
    buildDir = file('../../out/host/gradle/frameworks/support/build')
    project.ext.distDir = file('../../out/dist')
}
project.ext.distDir.mkdirs()
ext.supportRepoOut = new File(buildDir, 'support_repo')

// Main task called by the build server.
task(createArchive) << {
}
createArchive.doLast {
    println "support repo out ${project.ext.supportRepoOut}"
    println "dist dir ${project.ext.distDir}"

}

// upload anchor for subprojects to upload their artifacts
// to the local repo.
task(mainUpload) << {
}

// repository creation task
task createRepository(type: Zip, dependsOn: mainUpload) {
    from project.ext.supportRepoOut
    destinationDir project.ext.distDir
    into 'm2repository'
    baseName = String.format("sdk-repo-linux-m2repository-%s", project.ext.buildNumber)
}
createArchive.dependsOn createRepository
// prepare repository with older versions
task unzipRepo(type: Copy) {
    from "${dataBindingConfig.externalPrebuiltsBase}/maven_repo/android"
    into project.ext.supportRepoOut
}

unzipRepo.doFirst {
    project.ext.supportRepoOut.deleteDir()
    project.ext.supportRepoOut.mkdirs()
}

// anchor for prepare repo. This is post unzip + sourceProp.
task(prepareRepo) << {
}

task(createXml) << {
    def repoArchive = createRepository.archivePath
    def repoArchiveName = createRepository.archiveName
    def size = repoArchive.length()
    def sha1 = getSha1(repoArchive)

    def xml =
            "<sdk:sdk-addon xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:sdk=\"http://schemas.android.com/sdk/android/addon/6\">\n\
  <sdk:extra>\n\
    <sdk:revision>\n\
      <sdk:major>${project.ext.extraVersion}</sdk:major>\n\
    </sdk:revision>\n\
    <sdk:vendor-display>Android</sdk:vendor-display>\n\
    <sdk:vendor-id>android</sdk:vendor-id>\n\
    <sdk:name-display>Local Maven repository for Support Libraries</sdk:name-display>\n\
    <sdk:path>m2repository</sdk:path>\n\
    <sdk:archives>\n\
      <sdk:archive>\n\
       <sdk:size>${size}</sdk:size>\n\
       <sdk:checksum type=\"sha1\">${sha1}</sdk:checksum>\n\
       <sdk:url>${repoArchiveName}</sdk:url>\n\
      </sdk:archive>\n\
    </sdk:archives>\n\
  </sdk:extra>\n\
</sdk:sdk-addon>"

    Files.write(xml, new File(project.ext.distDir, 'repo-extras.xml'), Charsets.UTF_8)
}
createArchive.dependsOn createXml

task(createSourceProp) << {
    def sourceProp =
            "Extra.VendorDisplay=Android\n\
Extra.Path=m2repository\n\
Archive.Arch=ANY\n\
Extra.NameDisplay=Android Support Repository\n\
Archive.Os=ANY\n\
Pkg.Revision=${project.ext.extraVersion}.0.0\n\
Extra.VendorId=android"
    Files.write(sourceProp, new File(project.ext.supportRepoOut, 'source.properties'), Charsets.UTF_8)
}
createSourceProp.dependsOn unzipRepo
prepareRepo.dependsOn createSourceProp


def getSha1(File inputFile) {
    HashFunction hashFunction = Hashing.sha1()
    HashCode hashCode = hashFunction.hashString(inputFile.getAbsolutePath(), Charset.forName("UTF-8"))
    return hashCode.toString()
}

task(bundleSupportLib) << {

}
createRepository.dependsOn prepareRepo
createRepository.dependsOn unzipRepo
createRepository.dependsOn bundleSupportLib