/* =========================================================================================
 * Copyright © 2013-2014 the kamon project <http://kamon.io/>
 *
 * 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.
 * =========================================================================================
 */

import sbt.Tests.{SubProcess, Group}
import sbt._
import Keys._
import com.typesafe.sbt.SbtScalariform
import com.typesafe.sbt.SbtScalariform.ScalariformKeys
import Publish.{settings => publishSettings}
import Release.{settings => releaseSettings}
import scalariform.formatter.preferences._
import net.virtualvoid.sbt.graph.Plugin.graphSettings

object Settings {

  val JavaVersion = "1.6"
  val ScalaVersion = "2.11.5"

  lazy val basicSettings = Seq(
    crossScalaVersions      := Seq("2.10.5", "2.11.6"),
    resolvers              ++= Dependencies.resolutionRepos,
    fork in run             := true,
    parallelExecution in Test := false,
    testGrouping in Test    := singleTestPerJvm((definedTests in Test).value, (javaOptions in Test).value),
    javacOptions            := Seq(
      "-Xlint:-options",
      "-source", JavaVersion, "-target", JavaVersion),
    scalacOptions           := Seq(
      "-encoding",
      "utf8",
      "-g:vars",
      "-feature",
      "-unchecked",
      "-optimise",
      "-deprecation",
      "-target:jvm-1.6",
      "-language:postfixOps",
      "-language:implicitConversions",
      "-Yinline-warnings",
      "-Xlog-reflective-calls"
    )) ++ publishSettings ++ releaseSettings ++ graphSettings


  def singleTestPerJvm(tests: Seq[TestDefinition], jvmSettings: Seq[String]): Seq[Group] =
    tests map { test =>
      new Group(
        name = test.name,
        tests = Seq(test),
        runPolicy = SubProcess(ForkOptions(runJVMOptions = jvmSettings)))
    }

  lazy val formatSettings = SbtScalariform.scalariformSettings ++ Seq(
    ScalariformKeys.preferences in Compile := formattingPreferences,
    ScalariformKeys.preferences in Test    := formattingPreferences
  )

  def formattingPreferences =
    FormattingPreferences()
      .setPreference(RewriteArrowSymbols, true)
      .setPreference(AlignParameters, false)
      .setPreference(AlignSingleLineCaseStatements, true)
      .setPreference(DoubleIndentClassDeclaration, true)
}