plugins { id 'java-library'; id 'maven-publish' }
group = 'link.roadio.cuetree.thirdparty'
version = rootProject.property('flatbuffersVersion')
base { archivesName = 'flatbuffers-java' }
java { withSourcesJar() }

// Keep imported runtime sources verbatim; this module only supplies a matching unpublished runtime.
tasks.register('verifyUpstream') {
    def upstreamRoot = layout.projectDirectory.asFile
    def runtimeVersion = project.version.toString()
    def provenance = file('UPSTREAM.json')
    def upstreamFiles = files(fileTree('src/main/java'), file('LICENSE'))
    inputs.file(provenance)
    inputs.files(upstreamFiles)
    inputs.property('runtimeVersion', runtimeVersion)
    doLast {
        def record = new groovy.json.JsonSlurper().parse(provenance)
        if (record.release != "v${runtimeVersion}") throw new GradleException('FlatBuffers runtime source/version mismatch')
        def actualPaths = upstreamFiles.files.collect { upstreamRoot.toPath().relativize(it.toPath()).toString().replace(File.separator, '/') }.toSet()
        if (actualPaths != record.files.keySet()) throw new GradleException('FlatBuffers runtime source file set differs from upstream manifest')
        record.files.each { path, expected ->
            def actual = java.security.MessageDigest.getInstance('SHA-256').digest(new File(upstreamRoot, path).bytes).encodeHex().toString()
            if (actual != expected) throw new GradleException("Modified upstream FlatBuffers file: ${path}")
        }
    }
}
tasks.named('compileJava') { dependsOn 'verifyUpstream' }
tasks.named('check') { dependsOn 'verifyUpstream' }
tasks.withType(Jar).configureEach {
    from(files('LICENSE', 'NOTICE', 'UPSTREAM.json')) { into 'META-INF/flatbuffers' }
}
publishing { publications { library(MavenPublication) {
    from components.java
    artifactId = 'flatbuffers-java'
    pom {
        name = 'FlatBuffers Java runtime — Cuetree packaging'
        description = 'Unmodified upstream FlatBuffers Java runtime compiled for Cuetree.'
        url = 'https://github.com/google/flatbuffers'
        licenses { license { name = 'Apache License 2.0'; url = 'https://www.apache.org/licenses/LICENSE-2.0' } }
    }
} } }