import mill._

import mill.api.Loose

import mill.define.{Command, Input, Sources, Target}

import mill.scalajslib._

import mill.scalalib._

import mill.scalalib.publish._

object V {

  val scalaJs = "0.6.28"

  val scala211 = "2.11.12"

  val scala212 = "2.12.9"

}

object D {

  val scalatags = ivy"com.lihaoyi::scalatags::0.6.8"

}

trait Common extends CrossSbtModule with PublishModule {

  def pomSettings = PomSettings(

    description = "Scalatags DSL for purecss.io framework",

    organization = "functionals.cz",

    url = "https://hg.functionals.cz/purecss",

    licenses = Seq(License.`Apache-2.0`),

    versionControl = VersionControl(developerConnection = Some(

      "https://hg.functionals.cz/purecss")),

    developers = Seq(

      Developer("tzeman", "Tomas Zeman", "https://functionals.cz")

    )

  )

  override def artifactName = "purecss" 

  override def scalacOptions = T{Seq(

    "-deprecation",                      // Emit warning and location for usages of deprecated APIs.

    "-encoding", "utf-8",                // Specify character encoding used by source files.

    "-explaintypes",                     // Explain type errors in more detail.

    "-feature",                          // Emit warning and location for usages of features that should be imported explicitly.

    "-language:higherKinds",             // Allow higher-kinded types

    "-language:implicitConversions",     // Allow definition of implicit functions called views

    "-language:reflectiveCalls",

    "-language:postfixOps",

    "-unchecked",                        // Enable additional warnings where generated code depends on assumptions.

    "-Xcheckinit",                       // Wrap field accessors to throw an exception on uninitialized access.

    "-Xfuture",                          // Turn on future language features.

    "-target:jvm-1.8",

  )}

  def hgId: Input[String] = T.input {

    os.proc("hg", "id", "-i").call().out.text.trim

  }

  def hgNum: Input[String] = T.input {

    os.proc("hg", "id", "-n").call().out.text.trim

  }

  private val maskedTags = Set("tip", "qtip", "qbase")

  def hgTag: Input[Option[String]] = T.input {

    os.proc("hg", "id", "-t").call().out.text.trim.split(' ').filterNot(v =>

      maskedTags contains v).headOption

  }

  override def ivyDeps: Target[Loose.Agg[Dep]] = Agg(D.scalatags)

  override def sources: Sources = T.sources{

    super.sources() :+ PathRef(millSourcePath / 'shared / 'src / 'main / 'scala)

  }

  override def publishVersion: Input[String] = T.input{

    val tv = hgTag() map(v => "-" + v.replace(".patch", "")) getOrElse ""

    V.app.replace("SNAPSHOT", s"${hgNum()}-${hgId()}$tv")

  }

}

class JvmModule(val crossScalaVersion: String) extends Common

class JsModule(val crossScalaVersion: String) extends ScalaJSModule

  with Common {

  override def scalaJSVersion: Target[String] = V.scalaJs

}

object jvm extends Cross[JvmModule](V.scala211, V.scala212)

object js extends Cross[JsModule](V.scala211, V.scala212)

def publishLocal(): Command[Unit] = T.command{

  jvm(V.scala212).publishLocal()()

  js(V.scala212).publishLocal()()

  jvm(V.scala211).publishLocal()()

  js(V.scala211).publishLocal()()

  ()

}

def publishM2Local(p: os.Path): Command[Unit] = T.command{

  jvm(V.scala212).publishM2Local(p.toString)()

  js(V.scala212).publishM2Local(p.toString)()

  jvm(V.scala211).publishM2Local(p.toString)()

  js(V.scala211).publishM2Local(p.toString)()

  ()

}

// vim: et ts=2 sw=2 syn=scala