update

Assets/Scripts/Menu/ChapterSelection/ChapterSelectionManager.cs

@@ -2,9 +2,9 @@ using System;
 using System.Collections;
 using System.Collections.Generic;
 using Ichni.Menu;
+using Ichni.RhythmGame;
 using Ichni.UI;
 using Sirenix.OdinInspector;
-using UnityEngine;
 
 namespace Ichni
 {
@@ -25,9 +25,5 @@ namespace Ichni
             instance = this;
         }
         
-        public ChapterSelectionUnit GetChapterByName(string chapterName)
-        {
-            return chapters.Find(chapter => chapter.chapterName == chapterName);
-        }
     }
 }

Assets/Scripts/Menu/ChapterSelection/ChapterSelectionUnit.cs

@@ -3,6 +3,7 @@ using System.Collections;
 using System.Collections.Generic;
 using System.Linq;
 using AK.Wwise;
+using Ichni.RhythmGame;
 using Sirenix.OdinInspector;
 using UnityEngine;
 using UnityEngine.Serialization;
@@ -56,6 +57,49 @@ namespace Ichni.Menu
         {
             return (from song in songs where song.storyUnlockKey == key select song.songName).ToList();
         }
+        
+        public (int, int, int, int, int) GetChapterSaveInfo()
+        {
+            int beatmapCount = 0;
+            int finishedSongCount = 0;
+            int finishedBeatmapCount = 0;
+            int fullComboCount = 0;
+            int allPerfectCount = 0;
+            
+            foreach (SongItemData song in songs)
+            {
+                if (GameSaveManager.instance.SongSaveModule.songStatusSaves.TryGetValue(song.songName, out var songStatus))
+                {
+                    bool thisSongFinished = false;
+                    foreach (BeatmapSave beatmapSave in songStatus.beatmapSaves)
+                    {
+                        beatmapCount++;
+                        if (!beatmapSave.IsEmpty())
+                        {
+                            thisSongFinished = true;
+                            finishedBeatmapCount++;
+                            
+                            if (beatmapSave.isFullCombo)
+                            {
+                                fullComboCount++;
+                            }
+                            
+                            if (beatmapSave.isAllPerfect)
+                            {
+                                allPerfectCount++;
+                            }
+                        }
+                    }
+                    
+                    if (thisSongFinished)
+                    {
+                        finishedSongCount++;
+                    }
+                }
+            }
+            
+            return (beatmapCount, finishedSongCount, finishedBeatmapCount, fullComboCount, allPerfectCount);
+        }
     }
     
     [InlineProperty]