make debugchartloader less painful to use

Scenes/DebugChartLoader.tscn

@@ -2,7 +2,7 @@
 
 [ext_resource type="Script" path="res://Scripts/Scenes/DebugChartLoader.cs" id="1_hjgpd"]
 
-[node name="DebugChartLoader" type="MarginContainer" node_paths=PackedStringArray("inputField", "soundField", "difficultyButton", "playButton")]
+[node name="DebugChartLoader" type="MarginContainer" node_paths=PackedStringArray("pathsLine", "songsButton", "soundButton", "difficultyButton", "playButton")]
 anchors_preset = 15
 anchor_right = 1.0
 anchor_bottom = 1.0
@@ -13,30 +13,38 @@ theme_override_constants/margin_top = 32
 theme_override_constants/margin_right = 32
 theme_override_constants/margin_bottom = 32
 script = ExtResource("1_hjgpd")
-inputField = NodePath("VBoxContainer/HBoxContainer/PathLineEdit")
+pathsLine = NodePath("VBoxContainer/HBoxContainer0/User path")
-soundField = NodePath("VBoxContainer/HBoxContainer3/SoundLineEdit")
+songsButton = NodePath("VBoxContainer/HBoxContainer0/HBoxContainer1/SongsOptionButton")
-difficultyButton = NodePath("VBoxContainer/HBoxContainer/DifficultyOptionButton")
+soundButton = NodePath("VBoxContainer/HBoxContainer3/SoundsOptionButton")
+difficultyButton = NodePath("VBoxContainer/HBoxContainer0/HBoxContainer1/DifficultyOptionButton")
 playButton = NodePath("VBoxContainer/HBoxContainer2/PlayButton")
 
 [node name="VBoxContainer" type="VBoxContainer" parent="."]
 layout_mode = 2
 theme_override_constants/separation = 8
 
-[node name="HBoxContainer" type="HBoxContainer" parent="VBoxContainer"]
+[node name="HBoxContainer0" type="VBoxContainer" parent="VBoxContainer"]
 layout_mode = 2
 size_flags_vertical = 3
+alignment = 2
+
+[node name="User path" type="LineEdit" parent="VBoxContainer/HBoxContainer0"]
+layout_mode = 2
+size_flags_horizontal = 3
+
+[node name="HBoxContainer1" type="HBoxContainer" parent="VBoxContainer/HBoxContainer0"]
+layout_mode = 2
 alignment = 1
 
-[node name="PathLineEdit" type="LineEdit" parent="VBoxContainer/HBoxContainer"]
+[node name="SongsOptionButton" type="OptionButton" parent="VBoxContainer/HBoxContainer0/HBoxContainer1"]
 custom_minimum_size = Vector2(0, 35)
 layout_mode = 2
 size_flags_horizontal = 3
 size_flags_vertical = 8
 size_flags_stretch_ratio = 5.97
-text = "Bad Apple!!"
+disabled = true
-placeholder_text = "Folder path relative to \"user://songs/\""
 
-[node name="DifficultyOptionButton" type="OptionButton" parent="VBoxContainer/HBoxContainer"]
+[node name="DifficultyOptionButton" type="OptionButton" parent="VBoxContainer/HBoxContainer0/HBoxContainer1"]
 custom_minimum_size = Vector2(0, 35)
 layout_mode = 2
 size_flags_horizontal = 3
@@ -56,11 +64,10 @@ popup/item_3/id = 3
 layout_mode = 2
 alignment = 1
 
-[node name="SoundLineEdit" type="LineEdit" parent="VBoxContainer/HBoxContainer3"]
+[node name="SoundsOptionButton" type="OptionButton" parent="VBoxContainer/HBoxContainer3"]
+custom_minimum_size = Vector2(0, 31)
 layout_mode = 2
 size_flags_horizontal = 3
-text = "music.mp3"
-placeholder_text = "Name of audio file in the folder specified above with extension"
 
 [node name="HBoxContainer2" type="HBoxContainer" parent="VBoxContainer"]
 layout_mode = 2
@@ -70,4 +77,5 @@ alignment = 1
 [node name="PlayButton" type="Button" parent="VBoxContainer/HBoxContainer2"]
 layout_mode = 2
 size_flags_vertical = 0
+disabled = true
 text = "Play"

Scripts/Scenes/DebugChartLoader.cs

@@ -6,10 +6,13 @@ namespace WacK.Scenes
 	public partial class DebugChartLoader : Node
 	{
 		[Export]
-		private LineEdit inputField;
+		private LineEdit pathsLine;
 
 		[Export]
-		private LineEdit soundField;
+		private OptionButton songsButton;
+
+		[Export]
+		private OptionButton soundButton;
 
 		[Export]
 		private OptionButton difficultyButton;
@@ -17,19 +20,77 @@ namespace WacK.Scenes
 		[Export]
 		private Button playButton;
 
+		const string SONGS_PATH = $"user://songs";
+
 
 		// Called when the node enters the scene tree for the first time.
 		public override void _Ready()
 		{
+			// --- UI SETUP --- //
 			playButton.Pressed += PlayClicked;
+			songsButton.ItemSelected += RefreshSounds;
+			pathsLine.Text = OS.GetUserDataDir();
+
+			// --- SONGS ENUMERATION --- //
+			using var dir = DirAccess.Open(SONGS_PATH);
+			if (dir == null)
+			{
+				GD.PrintErr($"Error occurred opening song folder!\n{DirAccess.GetOpenError()}");
+			}
+			else
+			{
+				// populate songsButton
+				foreach (var sd in dir.GetDirectories())
+				{
+					var d = DirAccess.Open($"{SONGS_PATH}/{sd}");
+					if (d == null) continue;
+
+					songsButton.AddItem(sd);
+				}
+			}
+
+			if (songsButton.ItemCount >= 1)
+			{
+				songsButton.Disabled = false;
+				playButton.Disabled = false;
+			}
+			else
+			{
+				playButton.Text = "No songs found!";
+			}
+
+			RefreshSounds(0);
 		}
 
+        private void RefreshSounds(long _)
+        {
+			soundButton.Clear();
+			var dir = DirAccess.Open($"{SONGS_PATH}/{songsButton.Text}");
+			foreach (var sf in dir.GetFiles())
+			{
+				var l = sf.ToLower();
+				if (l.EndsWith(".mp3") || l.EndsWith(".wav") || l.EndsWith(".ogg"))
+				{
+					soundButton.AddItem(sf);
+				}
+			}
+			if (soundButton.ItemCount < 1)
+			{
+				soundButton.Disabled = true;
+				soundButton.Text = "No audio files found!";
+			}
+			else
+			{
+				soundButton.Disabled = false;
+			}
+        }
+
 		private void PlayClicked()
 		{
 			// TODO: globally accessible verify song folder and chart/audio function
-			var songPath = $"user://songs/{inputField.Text}";
+			var songPath = $"user://songs/{songsButton.Text}";
 			var chartPath = $"{songPath}/{difficultyButton.Selected}.mer";
-			var soundPath = $"{songPath}/{soundField.Text}";
+			var soundPath = $"{songPath}/{soundButton.Text}";
 			GD.Print($"Song: {songPath}\nChart: {chartPath}\nSound: {soundPath}");
 
 			// folder check
@@ -62,6 +123,7 @@ namespace WacK.Scenes
 
 		public override void _ExitTree()
 		{
+			songsButton.ItemSelected -= RefreshSounds;
 			playButton.Pressed -= PlayClicked;
 		}
 	}