addSbtPlugin("org.scalatra.scalate" % "sbt-scalate-precompiler" % "1.10.0.0")

import org.fusesource.scalate.ScalatePlugin._
import ScalateKeys._

scalateSettings

// Scalate Precompilation and Bindings
scalateTemplateConfig in Compile := {
  val base = (sourceDirectory in Compile).value
  Seq(
    TemplateConfig(
      base / "webapp" / "WEB-INF" / "webTmpl",
      Seq(
        "import org.myapp.scalate.Helpers._",
        "import org.myapp.model._",
        "import net.liftweb.common._",
        "import org.joda.time._",
        "import org.scalatra.UrlGenerator"
      ),
      Seq(
        Binding("context", "_root_.org.scalatra.scalate.ScalatraRenderContext", importMembers = true, isImplicit = true),
        Binding("messageTranslatorModel", "org.myapp.model.mongo.MessageTranslator", importMembers = true, isImplicit = true, defaultValue = null),
        Binding("userSession", "org.myapp.auth.UserSession", importMembers = true, defaultValue = null),
        Binding("env", "org.myapp.util.Environment")
      ),
      Some("webTmpl")
    ),
    TemplateConfig(
      base / "webapp" / "WEB-INF" / "mailTmpl",
      Seq(
        "import org.myapp.scalate.Helpers._",
        "import org.myapp.model._",
        "import net.liftweb.common._",
        "import org.joda.time._"
      ),
      Seq(
        Binding("i18n", "org.myapp.model.mongo.MessageTranslator", true, isImplicit = true, defaultValue = null),
        Binding("user", "User", false, defaultValue = null),
        Binding("config", "com.typesafe.config.Config", false, defaultValue = null),
        Binding("assets", "org.myapp.model.mongo.fields.AssetPaths", false, isImplicit = true, defaultValue = null),
        Binding("geonames", "org.myapp.model.Geonames", false, isImplicit = true, defaultValue = null)
      ),
      Some("mailTmpl")
    )
  )
}

import sbt._
import sbt.Keys._
import org.fusesource.scalate.ScalatePlugin._
import ScalateKeys._

object build extends Build {  
  val templateSettings = scalateSettings ++ Seq(
    /**
     * Sets the behavior of recompiling template files.
     * Always template files are recompiled when this setting is true.
     * When you set it to false, they are recompiled only when the modified time of
     * a template file is newer than that of a scala file generated by compilation
     * or a compiled scala file corresponding to a template file doesn't exist yet.
     */
    scalateOverwrite := true,
    scalateTemplateConfig in Compile <<= (baseDirectory) { base =>
      Seq(
        /**
         * A minimal template configuration example.
         * "scalate" is used as a package prefix(the 4th argument of TemplateConfig.apply)
         * if not specified.
         *
         * An example of a scalate usage is as bellow if you have templates/index.ssp.
         *
         * val engine = new TemplateEngine
         * engine.layout("/scalate/index.ssp")
         */
        TemplateConfig(
          base / "templates",
          Nil,
          Nil
        )
      )
    }
  )

  lazy val root = Project("root", file(".")).settings(templateSettings:_*)
}

watchSources <++= (scalateTemplateDirectory in Compile) map (d => (d ** "*").get)

trait YourScalateSupport extends ScalateSupport {
 
  override protected def defaultTemplatePath: List[String] = List("/webTmpl/views")
 
  override protected def createTemplateEngine(config: ConfigT) = {
    val engine = super.createTemplateEngine(config)
 
    engine.layoutStrategy = new DefaultLayoutStrategy(engine,
      TemplateEngine.templateTypes.map("/webTmpl/layouts/default." + _): _*)
 
    engine.packagePrefix = "webTmpl"
    engine
  }
 
}