build jar, generate hll files from dir

build.sbt

@@ -10,7 +10,8 @@ lazy val root = project
     name                        := "aqua-hll",
     version                     := "0.1.0",
     scalaVersion                := dottyVersion,
-    mainClass in (Compile, run) := Some("aqua.Main"),
+    mainClass in (Compile, run) := Some("aqua.AquaGen"),
+    mainClass in assembly := Some("aqua.AquaGen"),
     libraryDependencies ++= Seq(
       "org.typelevel"              %% "cats-effect"   % "3.0.0-RC2",
       "org.typelevel"              %% "cats-parse"    % "0.3.1",

project/plugins.sbt

@@ -1 +1,2 @@
 addSbtPlugin("ch.epfl.lamp" % "sbt-dotty" % "0.4.6")
+addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "0.15.0")

src/main/scala/aqua/AquaGen.scala

@@ -0,0 +1,56 @@
+package aqua
+
+import cats.data.Validated
+import cats.effect.{ExitCode, IO, IOApp}
+
+import java.io.{File, PrintWriter}
+import scala.io.Source
+
+object AquaGen extends IOApp {
+
+  override def run(args: List[String]): IO[ExitCode] =
+    IO {
+      val error = "There should be two arguments: path/to/input/dir and path/to/output/dir"
+      val process = for {
+        input <- args.headOption.toRight(error)
+        output <- args.lift(1).toRight(error)
+        inputDir <- {
+          val inputDir = new File(input)
+          if (!inputDir.isDirectory && !inputDir.exists()) Left("Input path should be a dir and exists")
+          else Right(inputDir)
+        }
+        outputDir <- {
+          val outputDir = new File(output)
+          if (!outputDir.isDirectory && !outputDir.exists()) Left("Output path should be a dir")
+          else Right(outputDir)
+        }
+        _ = convertAqua(inputDir.listFiles().toList, outputDir)
+
+      } yield {
+
+      }
+
+      process.fold(err => {
+        println(err);
+        ExitCode.Error
+      }, _ => ExitCode.Success)
+
+    }
+
+  def convertAqua(files: List[File], outputDir: File): Unit = {
+    for {
+      file <- files
+    } yield {
+      val src = Source.fromFile(file)
+      val lines = try src.mkString finally src.close()
+      val result = Aqua.generate(lines) match {
+        case Validated.Valid(v) ⇒
+          v.mkString("\n")
+        case Validated.Invalid(errs) ⇒
+          errs.map(_.showForConsole(lines)).toList.mkString("\n")
+      }
+      new PrintWriter(outputDir.toPath.resolve(file.getName + ".result").toFile.getAbsolutePath) { write(result); close() }
+
+    }
+  }
+}

src/main/scala/aqua/Test.scala

@@ -5,7 +5,7 @@ import cats.data.Validated
 
 import scala.io.Source
 
-object Main extends IOApp.Simple {
+object Test extends IOApp.Simple {
 
   override def run: IO[Unit] =
     IO {