// Copyright 2026 The Nomulus Authors. All Rights Reserved.
//
// 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.

plugins {
  id 'java-library'
}

// Path to code generated by ad hoc tasks in this project. A separate path is
// used for easy inspection.
def generatedDir = "${project.buildDir}/generated/sources/custom/java/main"

sourceSets {
  main {
    java {
      srcDirs += generatedDir
    }
    resources {
      exclude '**/*.xjb'
    }
  }
}

configurations {
  jaxb
}

dependencies {
  def deps = rootProject.dependencyMap

  api deps['com.google.code.findbugs:jsr305']
  api deps['com.google.guava:guava']
  api deps['jakarta.xml.bind:jakarta.xml.bind-api']

  implementation deps['com.google.re2j:re2j']
  implementation project(':common')

  runtimeOnly deps['org.glassfish.jaxb:jaxb-runtime']

  // Dependencies needed for jaxb compilation.
  jaxb deps['jakarta.xml.bind:jakarta.xml.bind-api']
  jaxb deps['org.glassfish.jaxb:jaxb-runtime']
  jaxb deps['org.glassfish.jaxb:jaxb-xjc']

  testImplementation deps['com.google.truth:truth']
  testImplementation deps['org.junit.jupiter:junit-jupiter-api']
  testImplementation deps['org.junit.jupiter:junit-jupiter-engine']
  testImplementation deps['org.junit.jupiter:junit-jupiter-params']
  testImplementation deps['org.junit.platform:junit-platform-launcher']
}

task jaxbToJava {
  def xsdFilesDir = "${javaDir}/google/registry/xml/xsd"
  def bindingsFile = "${javaDir}/google/registry/xjc/bindings.xjb"
  def pkgInfoTemplate = "${javaDir}/google/registry/xjc/package-info.java.in"
  def pkgInfoMap = "${javaDir}/google/registry/xjc/package-info.map"
  def outputDir = "${generatedDir}/google/registry/xjc"

  inputs.dir(xsdFilesDir).withPathSensitivity(PathSensitivity.RELATIVE)
  inputs.files(bindingsFile, pkgInfoTemplate, pkgInfoMap)
      .withPathSensitivity(PathSensitivity.RELATIVE)
  inputs.files(configurations.jaxb).withNormalizer(ClasspathNormalizer)
  outputs.dir outputDir
  outputs.cacheIf { true }

  doLast {
    file(generatedDir).mkdirs()

    // Temp dir to hold schema and bindings files. Files must be in the same
    // directory because the bindings (.xjb) file does not declare relative
    // paths to schema (.xsd) files.
    def xjcTempSourceDir = file("${temporaryDir}/xjc")
    xjcTempSourceDir.mkdirs()
    ant.copy(
            todir: "${xjcTempSourceDir}",
            overwrite: true) {
      fileSet(
              dir: xsdFilesDir,
              includes: '**.xsd')
    }
    ant.copy(
            todir: "${xjcTempSourceDir}",
            overwrite: true,
            file: bindingsFile)
    ant.taskdef(
            name: 'xjc',
            classname: 'com.sun.tools.xjc.XJCTask',
            classpath: configurations.jaxb.asPath)
    ant.xjc(
            destdir: "${generatedDir}",
            binding: "${xjcTempSourceDir}/bindings.xjb",
            removeOldOutput: 'yes', extension: 'true') {
      fileTree(
              dir: new File("$xjcTempSourceDir"),
              include: ['**/*.xsd'])
              .addToAntBuilder(ant, 'schema', FileCollection.AntType.FileSet)
      // -npa: do not generate package-info.java files. They will be generated
      // below.
      arg(line: '-npa -quiet -extension')
    }
    new File(pkgInfoMap).eachLine { line ->
      def (packageName, namespace) = line.split()
      ant.copy(
          tofile: "${outputDir}/${packageName}/package-info.java",
          overwrite: true,
          file: "${pkgInfoTemplate}") {
        filterSet() {
          filter(token: 'PACKAGE', value: packageName)
          filter(token: 'NAMESPACE', value: namespace)
        }
      }
    }
    execInBash(
        "find . -name *.java -exec sed -i -e '/" + /\* <p>$/ + "/d' {} +",
        generatedDir)
  }
}

compileJava.dependsOn jaxbToJava