import org.apache.tools.ant.taskdefs.condition.Os

import java.nio.file.Files

apply plugin: 'org.jetbrains.dokka'
apply plugin: 'kotlin'

dependencies {
    compile rootProject
}

def internalPackagePrefixes(sourceDirs) {
    def prefixes = []
    // Kotlin allows packages to deviate from the directory structure, but let's assume they don't:
    sourceDirs.collect { sourceDir ->
        sourceDir.traverse(type: groovy.io.FileType.DIRECTORIES) {
            if (it.name == 'internal') {
                prefixes.add sourceDir.toPath().relativize(it.toPath()).toString().replace(File.separator, '.')
            }
        }
    }
    prefixes
}

ext {
    // TODO: Add '../client/jfx/src/main/kotlin' and '../client/mock/src/main/kotlin' if we decide to make them into public API
    dokkaSourceDirs = files('../core/src/main/kotlin', '../client/rpc/src/main/kotlin', '../finance/workflows/src/main/kotlin', '../finance/contracts/src/main/kotlin', '../client/jackson/src/main/kotlin',
            '../testing/test-utils/src/main/kotlin', '../testing/node-driver/src/main/kotlin')
    internalPackagePrefixes = internalPackagePrefixes(dokkaSourceDirs)
}

dokka {
    outputDirectory = file("${rootProject.rootDir}/docs/build/html/api/kotlin")
}

task dokkaJavadoc(type: org.jetbrains.dokka.gradle.DokkaTask) {
    outputFormat = "javadoc"
    outputDirectory = file("${rootProject.rootDir}/docs/build/html/api/javadoc")
}

[dokka, dokkaJavadoc].collect {
    it.configure {
        moduleName = 'corda'
        processConfigurations = ['compile']
        sourceDirs = dokkaSourceDirs
        includes = ['packages.md']
        jdkVersion = 8
        externalDocumentationLink {
            url = new URL("http://fasterxml.github.io/jackson-core/javadoc/2.8/")
        }
        externalDocumentationLink {
            url = new URL("https://docs.oracle.com/javafx/2/api/")
        }
        externalDocumentationLink {
            url = new URL("http://www.bouncycastle.org/docs/docs1.5on/")
        }
        internalPackagePrefixes.collect { packagePrefix ->
            packageOptions {
                prefix = packagePrefix
                suppress = true
            }
        }
    }
}

task buildDocs(dependsOn: ['apidocs', 'makeDocs'])
task apidocs(dependsOn: ['dokka', 'dokkaJavadoc'])

task makeDocs(type: Exec) {
    // 2 volumes are mounted:
    //  - the docs project to /opt/docs_builder, where docs building is executed
    //  - the rest of the projects in /opt, so that code references to other projects are valid
    if (Os.isFamily(Os.FAMILY_WINDOWS)) {
        commandLine "docker", "run", "--rm", "-v", "${project.projectDir}:/opt/docs_builder", "-v", "${project.projectDir}/..:/opt", "corda/docs-builder:latest", "bash", "-c", "make-docsite.sh"
    } else {
        commandLine "bash", "-c",  "docker run --rm --user \$(id -u):\$(id -g) -v ${project.projectDir}:/opt/docs_builder -v ${project.projectDir}/..:/opt corda/docs-builder:latest bash -c make-docsite.sh"
    }
}

apidocs.shouldRunAfter makeDocs