From ae0efe07567dbc2a462a6bfa117dde4e78359ad1 Mon Sep 17 00:00:00 2001
From: Klagarge <remi@heredero.ch>
Date: Mon, 7 Apr 2025 13:05:27 +0200
Subject: [PATCH] feat: add genre filtering and longest streak display in
 TopSongs

---
 src/main/scala/TopSongs/TopSongs.scala | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/main/scala/TopSongs/TopSongs.scala b/src/main/scala/TopSongs/TopSongs.scala
index 29e1fb8..a34d455 100644
--- a/src/main/scala/TopSongs/TopSongs.scala
+++ b/src/main/scala/TopSongs/TopSongs.scala
@@ -122,6 +122,14 @@ case class TopSongs(songs: List[Song] = List()) {
       .toMap
   }
 
+  // This function return the song spent the most weeks on the chart
+  // It uses reduce to find the song with the maximum streak value
+  def longestStreak(): Song = {
+    songs.reduce((s1, s2) => {
+      if (s1.rank._1.streak.getOrElse(0) > s2.rank._1.streak.getOrElse(0)) s1 else s2
+    })
+  }
+
   // This function returns the top N songs by weeks on chart
   // It sorts the songs by the streak value in descending order and takes the top N songs
   def topNSongsByWeeks(n: Int): List[Song] = {