import java.util.function.Function
import java.util.regex.Pattern
import java.util.stream.Collectors

/* ====================================================================
   Licensed to the Apache Software Foundation (ASF) under one or more
   contributor license agreements.  See the NOTICE file distributed with
   this work for additional information regarding copyright ownership.
   The ASF licenses this file to You 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'
    id 'maven-publish'
    id 'java-library'
}

final String JAVA9_SRC = 'src/main/java9'
final String JAVA9_OUT = "${buildDir}/classes/java9/main/"
final String VERSIONS9 = 'META-INF/versions/9'

sourceSets {
    main {
        if (JavaVersion.current() != JavaVersion.VERSION_1_8) {
            output.dir(JAVA9_OUT, builtBy: 'cacheJava9')
        }
        resources {
            srcDirs += project(':poi-ooxml-full').sourceSets.main.output.findAll{it =~ /.*(classes\/java\/main|generated-resources)$/}
        }
    }
}

dependencies {
    api "org.apache.xmlbeans:xmlbeans:${xmlbeansVersion}"
    implementation project(':poi-ooxml-full')
    implementation project(path:':poi-integration', configuration:'tests')
}

final MODULE_NAME = 'org.apache.poi.ooxml.schemas'
final Pattern MODULE_REGEX = ~'\\.jar$'
final List MAIN_MODULE_PATH = sourceSets.main.runtimeClasspath.findAll{ it.path =~ MODULE_REGEX }.collect{ it.parent }.unique()
final String OOXML_LITE_REPORT = '../build/ooxml-lite-report'

task compileOoxmlLite() {
    dependsOn ':poi-ooxml:build', ':poi-integration:build', ':poi-excelant:build'

    File fileIn = file("${OOXML_LITE_REPORT}.clazz")
    File fileOut = file("src/main/java9/module-info.java")

    outputs.upToDateWhen{
        ant.uptodate(property: "ooxmlLiteUnchanged", srcfile: fileIn.path, targetfile: fileOut.path)
        ant.properties.ooxmlLiteUnchanged
    }

    doLast {
        String header = fileOut.collect().findAll { !(it =~ /exports|}/) }.join('\n')

        // generate module-info based on exported classes
        String exports = fileIn.
            collect { "    exports ${it.replaceAll('[/\\\\][^/\\\\]+$', '').replaceAll('[/\\\\]', '.')};" }.
            findAll { !(it =~ /\.impl;$/) }.unique().sort().join('\n')

        String content = header + '\n' + exports + '\n}'
        if (fileOut.text != content) {
            fileOut.write content
        }
    }
}


java {
    sourceCompatibility = JavaVersion.VERSION_1_8
    targetCompatibility = JavaVersion.VERSION_1_8
}

compileJava.dependsOn 'compileOoxmlLite'

task compileJava9(type: JavaCompile, dependsOn: 'compileJava') {
    sourceCompatibility = 9
    targetCompatibility = 9
    destinationDirectory = file(JAVA9_OUT + VERSIONS9)
    source = file(JAVA9_SRC)
    classpath = files()
    doFirst {
        options.compilerArgs = [
            '--patch-module', "${MODULE_NAME}=${project(':poi-ooxml-full').sourceSets.main.output.asPath}",
            '--module-path', files(MAIN_MODULE_PATH).asPath
        ]
    }
}

task cacheJava9(type: Copy, dependsOn: 'compileJava9') {
    from(file(JAVA9_OUT + VERSIONS9))
    into(JAVA9_SRC)
}

jar {
    File clazzFile = file("${OOXML_LITE_REPORT}.clazz")
    File xsbsFile = file("${OOXML_LITE_REPORT}.xsb")
    if (clazzFile.exists() && xsbsFile.exists()) {
        List clazz = clazzFile.collect { "${it}.class" }
        List clazzInner = clazzFile.collect { "${it}\$*.class" }
        List xsbs = xsbsFile.collect { "org/apache/poi/schemas/ooxml/system/ooxml/${it}.xsb" }
        includes = clazz + clazzInner + xsbs + ['META-INF/versions/**', 'org/apache/poi/schemas/ooxml/element/**']
    }

    destinationDirectory = file("../build/dist/maven/${project.archivesBaseName}")

    if (JavaVersion.current() == JavaVersion.VERSION_1_8) {
        into('META-INF/versions/9') {
            from JAVA9_SRC include '*.class'
        }
    }

    // ignore second module-info.class from poi-ooxml-full
    // duplicatesStrategy = 'exclude'
    includeEmptyDirs = false

    manifest {
        attributes('Automatic-Module-Name' : MODULE_NAME, 'Multi-Release': 'true')
    }
}