From b7c2adae2795bd205520d9c502fa2f559f1c553f Mon Sep 17 00:00:00 2001
From: LordBaryhobal <lordbaryhobal@gmail.com>
Date: Wed, 1 May 2024 13:07:56 +0200
Subject: [PATCH] task 1.2-3

---
 .gitignore                                    |  1 +
 Lab18.iml                                     |  2 +
 src/ch/hevs/isc/slopify_v2/Album.scala        |  2 +
 src/ch/hevs/isc/slopify_v2/Artist.scala       |  3 +
 src/ch/hevs/isc/slopify_v2/DataBase.scala     |  2 +
 .../hevs/isc/slopify_v2/DataBaseHelper.scala  | 62 +++++++++++++++++++
 6 files changed, 72 insertions(+)
 create mode 100644 src/ch/hevs/isc/slopify_v2/DataBaseHelper.scala

diff --git a/.gitignore b/.gitignore
index 561b953..9ff5fba 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,4 @@
 # virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
 hs_err_pid*
 
+/res/songs/
diff --git a/Lab18.iml b/Lab18.iml
index 1f50b08..6815354 100644
--- a/Lab18.iml
+++ b/Lab18.iml
@@ -3,7 +3,9 @@
   <component name="NewModuleRootManager" inherit-compiler-output="true">
     <exclude-output />
     <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/res" type="java-resource" />
       <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+      <excludeFolder url="file://$MODULE_DIR$/res/songs" />
     </content>
     <orderEntry type="inheritedJdk" />
     <orderEntry type="sourceFolder" forTests="false" />
diff --git a/src/ch/hevs/isc/slopify_v2/Album.scala b/src/ch/hevs/isc/slopify_v2/Album.scala
index 1ba3b5f..8c2a76f 100644
--- a/src/ch/hevs/isc/slopify_v2/Album.scala
+++ b/src/ch/hevs/isc/slopify_v2/Album.scala
@@ -4,4 +4,6 @@ import scala.collection.mutable.ArrayBuffer
 
 class Album(val name: String) {
   private var songs: ArrayBuffer[Song] = new ArrayBuffer()
+  def addSong(song: Song): Unit = songs.addOne(song)
+  def containsSong(song: Song): Boolean = songs.contains(song)
 }
diff --git a/src/ch/hevs/isc/slopify_v2/Artist.scala b/src/ch/hevs/isc/slopify_v2/Artist.scala
index eeedd64..60325af 100644
--- a/src/ch/hevs/isc/slopify_v2/Artist.scala
+++ b/src/ch/hevs/isc/slopify_v2/Artist.scala
@@ -4,4 +4,7 @@ import scala.collection.mutable.ArrayBuffer
 
 class Artist(val name: String) {
   private var albums: ArrayBuffer[Album] = new ArrayBuffer()
+  def addAlbum(album: Album): Unit = albums.addOne(album)
+
+  def hasAlbum(album: Album): Boolean = albums.contains(album)
 }
diff --git a/src/ch/hevs/isc/slopify_v2/DataBase.scala b/src/ch/hevs/isc/slopify_v2/DataBase.scala
index c1214a1..c71f47b 100644
--- a/src/ch/hevs/isc/slopify_v2/DataBase.scala
+++ b/src/ch/hevs/isc/slopify_v2/DataBase.scala
@@ -4,4 +4,6 @@ import scala.collection.mutable.ArrayBuffer
 
 class DataBase {
   private var artists: ArrayBuffer[Artist] = new ArrayBuffer()
+  def addArtist(artist: Artist): Unit = artists.addOne(artist)
+  def containsArtist(artist: Artist): Boolean = artists.contains(artist)
 }
diff --git a/src/ch/hevs/isc/slopify_v2/DataBaseHelper.scala b/src/ch/hevs/isc/slopify_v2/DataBaseHelper.scala
new file mode 100644
index 0000000..3a71708
--- /dev/null
+++ b/src/ch/hevs/isc/slopify_v2/DataBaseHelper.scala
@@ -0,0 +1,62 @@
+package ch.hevs.isc.slopify_v2
+
+import java.io.File
+
+object DataBaseHelper {
+  def create(directory:String) : DataBase = {
+    val db = new DataBase()
+    for (a <- new File(directory).listFiles() if a.isDirectory) {
+      val artistName = a.getName
+      println(s"found new artist : $artistName")
+      val artist: Artist = new Artist(artistName)
+
+      for (b <- a.listFiles() if b.isDirectory ) {
+        val albumName = b.getName
+        println(s"found new album $albumName for artist : $artistName")
+        val album: Album = new Album(albumName)
+
+        for (c <- b.listFiles() if c.isFile if c.getName.toLowerCase().endsWith(".mp3") ) {
+          val fileName = c.getName.substring(0, c.getName.length - 4)
+          val format1 = """(\d*) (.*)""".r
+          val format2 = """(\d*)-(\d*) (.*)""".r
+          val format3 = """(\d*)-(.*)""".r
+          var songName: String = ""
+          var songNumber: Int = 0
+
+          fileName match {
+            case format1(nr, name) => {
+              println(s"found song nr #$nr name:'$name' in album '$albumName' for artist : '${a.getName}'")
+              songName = name
+              songNumber = Integer.parseInt(nr)
+            }
+            case format2(cd, nr, name) => {
+              println(s"found song nr #$nr on cd#$cd name:'$name' in album '$albumName' for artist : '${a.getName}'")
+              songName = name
+              songNumber = Integer.parseInt(nr)
+            }
+            case format3(nr, name) => {
+              println(s"found song nr #$nr name:'$name' in album '$albumName' for artist : '$artistName'")
+              songName = name
+              songNumber = Integer.parseInt(nr)
+            }
+          }
+
+          val song: Song = new Song(songName, songNumber)
+          album.addSong(song)
+        }
+        artist.addAlbum(album)
+      }
+      db.addArtist(artist)
+    }
+
+    return db
+  }
+
+  def save(fileName:String, db:DataBase) : Unit = ???
+  def load(fileName:String) : DataBase = ???
+
+  def main(args: Array[String]): Unit = {
+    val db: DataBase = create("res/songs")
+
+  }
+}
\ No newline at end of file