build.sbt

Global / onChangedBuildSource := IgnoreSourceChanges // not working well with webpack devserver

name                     := "Blend"
ThisBuild / version      := "0.1.0-SNAPSHOT"
ThisBuild / scalaVersion := "3.1.2"

val versions = new {
  val outwatch  = "1.0.0-RC8"
  val funPack   = "0.2.0"
  val scalaTest = "3.2.11"
}

ThisBuild / resolvers ++= Seq(
  "jitpack" at "https://jitpack.io",
  "Sonatype OSS Snapshots" at "https://oss.sonatype.org/content/repositories/snapshots",
  "Sonatype OSS Snapshots S01" at "https://s01.oss.sonatype.org/content/repositories/snapshots", // https://central.sonatype.org/news/20210223_new-users-on-s01/
)

lazy val scalaJsMacrotaskExecutor = Seq(
  // https://github.com/scala-js/scala-js-macrotask-executor
  libraryDependencies       += "org.scala-js" %%% "scala-js-macrotask-executor" % "1.0.0",
  Compile / npmDependencies += "setimmediate"  -> "1.0.5", // polyfill
  stIgnore                  += "setimmediate",
)

def readJsDependencies(baseDirectory: File, field: String): Seq[(String, String)] = {
  val packageJson = ujson.read(IO.read(new File(s"$baseDirectory/package.json")))
  packageJson(field).obj.mapValues(_.str.toString).toSeq
}

lazy val webapp = project
  .enablePlugins(
    ScalaJSPlugin,
    ScalaJSBundlerPlugin,
    ScalablyTypedConverterPlugin,
  )
  .settings(scalaJsMacrotaskExecutor)
  .settings(
    libraryDependencies          ++= Seq(
      "io.github.outwatch" %%% "outwatch"      % versions.outwatch,
      "io.github.outwatch" %%% "outwatch-util" % versions.outwatch,
      "org.scalatest"      %%% "scalatest"     % versions.scalaTest % Test,
    ),
    Compile / npmDependencies    ++= readJsDependencies(baseDirectory.value, "dependencies") ++ Seq(
      "snabbdom" -> "github:outwatch/snabbdom.git#semver:0.7.5", // for outwatch, workaround for: https://github.com/ScalablyTyped/Converter/issues/293
    ),
    stIgnore                     ++= List(
      "snabbdom",
    ),
    Compile / npmDependencies    ++= readJsDependencies(baseDirectory.value, "dependencies"),
    Compile / npmDevDependencies ++= readJsDependencies(baseDirectory.value, "devDependencies"),
    scalacOptions --= Seq(
      "-Xfatal-warnings",
    ), // overwrite option from https://github.com/DavidGregory084/sbt-tpolecat

    useYarn := true, // Makes scalajs-bundler use yarn instead of npm
    scalaJSLinkerConfig ~= {
      _.withModuleKind(ModuleKind.CommonJSModule)
    }, // configure Scala.js to emit a JavaScript module instead of a top-level script
    scalaJSUseMainModuleInitializer   := true, // On Startup, call the main function
    webpackDevServerPort              := 12345,
    webpack / version                 := "4.46.0",
    startWebpackDevServer / version   := "3.11.3",
    webpackDevServerExtraArgs         := Seq("--color"),
    fullOptJS / webpackEmitSourceMaps := true,
    fastOptJS / webpackBundlingMode   := BundlingMode
      .LibraryOnly(), // https://scalacenter.github.io/scalajs-bundler/cookbook.html#performance
    fastOptJS / webpackConfigFile := Some(baseDirectory.value / "webpack.config.dev.js"),
    fullOptJS / webpackConfigFile := Some(baseDirectory.value / "webpack.config.prod.js"),
    /* Test / requireJsDomEnv        := true, */
  )

addCommandAlias("prod", "fullOptJS/webpack")
addCommandAlias("dev", "devInit; devWatchAll; devDestroy")
addCommandAlias("devInit", "; webapp/fastOptJS/startWebpackDevServer")
addCommandAlias("devWatchAll", "~; webapp/fastOptJS/webpack")
addCommandAlias("devDestroy", "webapp/fastOptJS/stopWebpackDevServer")