Initial commit

src/main/scala/TopSongs/TopSongs.scala

@@ -0,0 +1,87 @@
+package TopSongs
+import scala.io.Source
+import java.io.File
+import com.github.tototoshi.csv._
+
+trait Person:
+  val name: String
+
+case class Artist(name: String) extends Person
+case class Writer(name: String) extends Person
+case class Producer(name: String) extends Person
+class Album(title: String, label: String)
+class Streak(val s: String) {
+  val streak: Option[Int] = {
+    val regex = "\\d+".r
+    if(s.equalsIgnoreCase("Did not chart")) {
+      Some(0)
+    } else {
+      regex.findFirstIn(s) match {
+        case Some(value) => Some(Integer.parseInt(value))
+        case None => None
+      }
+    }
+  }
+}
+class Position(val p: String) {
+  val position: Option[Int] = {
+    val regex = "\\d+".r
+    regex.findFirstIn(p) match {
+      case Some(value) => Some(Integer.parseInt(value))
+      case None => None
+    }
+  }
+}
+
+class Song(
+  val title: String,
+  val description: Option[String],
+  val artist: List[Artist],
+  val writer: List[Writer],
+  val producer: List[Producer],
+  val album: Option[Album],
+  val streak: Streak,
+  val position: Position
+)
+
+
+object TopSongs {
+  var songs: List[Song] = List()
+  def addSong(song: Song): Unit = {
+    songs = song :: songs
+  }
+  def printSongs(): Unit = {
+    songs.foreach(song => println(
+      s"${song.title} by ${song.artist.map(_.name).mkString(", ")} " +
+        s"produced by ${song.producer.map(_.name).mkString(", ")} " +
+        s"spent ${song.streak.streak.getOrElse("no")} weeks " +
+        s"on the charts on Pos. ${song.position.position.getOrElse("NA")}"
+    ))
+  }
+}
+
+@main def main(): Unit =
+  // create a new TopSongs object
+  val topSongs = TopSongs
+
+  val reader = CSVReader.open(new File("src/main/resources/songs.csv"))
+  val allRows = reader.allWithHeaders()
+  for (row <- allRows) {
+    val s = Song(
+      title = row("title"),
+      description = Some(row("description")),
+      artist = List(Artist(row("artist"))),
+      writer = List(Writer(row("writers"))),
+      producer = List(Producer(row("producer"))),
+      album = Some(Album(row("appears on"), "NA")),
+      streak = Streak(row("streak")),
+      position = Position(row("position"))
+    )
+
+    // add the song to the TopSongs object
+    topSongs.addSong(s)
+  }
+  reader.close()
+
+  // print the songs
+  topSongs.printSongs()