/*
 * 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.
 */

buildscript {
    repositories {
        mavenCentral()
        jcenter()
    }

    dependencies {
        classpath "org.asciidoctor:asciidoctorj:1.6.2"
    }
}

plugins {
    id 'java'
    id 'com.github.jruby-gradle.base' version '2.0.0'
}

// This project does not contribute anything to main dependencies.
versionsLock {
    testProject()
}

description = 'Solr reference guide'

// Use an internal proxy to ruby gems.
repositories {
    ruby.gems()
}

configurations {
    depVer
    refGuide
}

dependencies {
    // Dependencies to compile internal tools.
    implementation('org.asciidoctor:asciidoctorj')
    implementation('com.vaadin.external.google:android-json')
    implementation('org.jsoup:jsoup')
    implementation('org.slf4j:jcl-over-slf4j')
    implementation('org.slf4j:slf4j-simple')
    implementation('org.apache.logging.log4j:log4j-core')
    implementation('com.google.guava:guava')
    implementation('commons-codec:commons-codec')

    // Dependencies referenced in the guide.
    depVer('commons-codec:commons-codec')
    depVer('io.dropwizard.metrics:metrics-core')
    depVer('org.apache.logging.log4j:log4j-core')
    depVer('org.apache.opennlp:opennlp-tools')
    depVer('org.apache.tika:tika-core')
    depVer('org.apache.zookeeper:zookeeper')

    // jekyll dependencies
    gems 'rubygems:jekyll:3.5.2'
    gems 'rubygems:jekyll-asciidoc:3.0.0'

    // don't know why we have to explicitly add these deps but it doesn't resolve them
    // automatically.
    gems 'rubygems:tilt:2.0.10'
    gems 'rubygems:slim:4.0.1'
    gems 'rubygems:concurrent-ruby:1.0.5'
}

sourceSets {
    refGuide {
        java {
            srcDirs = []
        }
        resources {
            srcDirs = ['src']
        }
    }

    main {
        java {
            srcDirs = ['tools']
        }
    }

    test {
        java {
            srcDirs = []
        }
    }
}

ext {
    buildContentDir = file("${buildDir}/content")
    mainPage = "index"

    // the "MAJOR.MINOR" version of solr this guide is about (guides aren't specific to BUGFIX releases)
    // So on 'branch_9_9' where 'version' may be 9.9.0, 9.9.1, 9.9.9, etc..;  solrDocsVersion = 9.9
    solrDocsVersion = "${version}".replaceAll(/^(\d+\.\d+)(|\..*)$/, "\$1")
    
    // the "MAJOR_MINOR" version as a path for publishing the guide
    // So on 'branch_9_9' where solrDocsVersion = 9.9; solrGuideVersionPath => 9_9
    solrGuideVersionPath = "${solrDocsVersion}".replaceAll(/^(\d+)\.(\d+)$/, "\$1_\$2")

    if (project.hasProperty("local.javadocs")) {
        htmlSolrJavadocs = "link:../../docs/"
        htmlLuceneJavadocs = "link:../../../../lucene/build/docs/"
    } else {
        // when linking to javadocs of code releases, which always use paths like "MAJOR_MINOR_BUGFIX"
        // (even when 'BUGFIX' = 0), we link to the javadocs for the "MAJOR.MINOR.0" release
        // So if solrGuideVersionPath = '9_9'; use '9_9_0' for javadoc links...
        htmlSolrJavadocs = "https://lucene.apache.org/solr/${solrGuideVersionPath}_0/"
        htmlLuceneJavadocs = "https://lucene.apache.org/core/${solrGuideVersionPath}_0/"
    }

    templateProps = [
      javadocLink: "https://docs.oracle.com/en/java/javase/11/docs/api/",
                      
      solrGuideDraftStatus: propertyOrDefault("solrGuideDraft", "true").toBoolean() ? "DRAFT" : "",
      solrRootPath: project(':solr').projectDir.toString() + File.separator,
      
      solrDocsVersion: solrDocsVersion,
      solrGuideVersionPath: solrGuideVersionPath,
      htmlSolrJavadocs: htmlSolrJavadocs,
      htmlLuceneJavadocs: htmlLuceneJavadocs,
      buildDate: buildDate,
      buildYear: buildYear,
    ]   
}

task prepareSources(type: Sync) {
    dependsOn configurations.depVer
    
    // If replaceable properties change, we have to rerun the task.
    inputs.properties templateProps

    final def escapedProps = [:] // must be final and only contents may change in doFirst, otherwise it's not picked up by expand.
    doFirst {
        // Copy over template properties and add dependency versions resolved during execution phase.
        final def props = templateProps.clone()

        // These properties have to be resolved after the configuration phase is complete (palantir's constraint)
        // so we can't use them as input for caches. But as this task depends on the configuration, it's used correctly
        [
            ["ivyCommonsCodec", "commons-codec", "commons-codec"],
            ["ivyDropwizardMetrics", "io.dropwizard.metrics", "metrics-core"],
            ["ivyLog4j", "org.apache.logging.log4j", "log4j-core"],
            ["ivyOpennlpTools", "org.apache.opennlp", "opennlp-tools"],
            ["ivyTika", "org.apache.tika", "tika-core"],
            ["ivyZookeeper", "org.apache.zookeeper", "zookeeper"],
        ].each { p, depGroup, depId ->
            props[p] = getVersion(depGroup, depId, configurations.depVer)
        }

        // Emit info about properties for clarity.
        logger.lifecycle('Building ref guide with:\n{}', props.collect({ k, v -> "  ${k} -> ${v}" }).join('\n'))

        // Escape all the properties, so they can be inserted into YAML templates.
        props.each{ k, v ->
          escapedProps[k] = v.replace("'","''")
        }
    }

    from(file("src"), {
       exclude '**/*.template'
    })

    from(file("src"), {
        include '**/*.template'
        rename '(.+)\\.template', '$1'
        filteringCharset = 'UTF-8'
        expand(escapedProps)
    })

    into buildContentDir
}

task buildNavDataFiles(type: JavaExec) {
    dependsOn prepareSources, classes
    classpath = sourceSets.main.runtimeClasspath

    main = 'BuildNavDataFiles'
    workingDir = buildContentDir

    args([
        "${buildContentDir}",
        "${mainPage}"
    ])

    doFirst {
        // Remove previously generated files first.
        [
                "scrollnav.json",
                "sidebar.json"
        ].each { name ->
            project.delete(file("${buildContentDir}/_data/${name}"))
        }
    }
}

task buildSiteJekyll(type: com.github.jrubygradle.JRubyExec) {
    dependsOn buildNavDataFiles

    inputs.dir buildContentDir
    outputs.dir file("${buildDir}/html-site")

    script 'jekyll'
    scriptArgs 'build' //, '--verbose'
    workingDir buildContentDir
}

task buildSite(type: JavaExec) {
    group "Documentation"
    description "Builds an HTML Site w/Jekyll and verifies the anchors+links are valid"

    dependsOn buildSiteJekyll

    classpath = sourceSets.main.runtimeClasspath
    main = 'CheckLinksAndAnchors'
    workingDir = buildContentDir

    args([
            file("${buildDir}/html-site"),
    ])

    if (project.hasProperty("local.javadocs")) {
        args += "-check-all-relative-links"
    }
}

// Hook up custom tasks with standard tasks.
check.dependsOn buildSite

// Hook site building to assemble.
assemble.dependsOn buildSiteJekyll