@tool
extends EditorPlugin


var _importer: EditorImportPlugin
var _dock: Control


func _enter_tree() -> void:
	var src_path : String = get_script().get_path().get_base_dir().path_join("Src")

	var importer_script : CSharpScript = load(src_path.path_join("InkStoryImporter.cs")) as CSharpScript
	if not importer_script.can_instantiate():
		return
	_importer = importer_script.new() as EditorImportPlugin
	add_import_plugin(_importer)

	var dock_scene : PackedScene = load(src_path.path_join("InkDock.tscn")) as PackedScene
	_dock = dock_scene.instantiate() as Control
	add_control_to_bottom_panel(_dock, "Ink preview")
	
	var fs : EditorFileSystem = get_editor_interface().get_resource_filesystem()
	if not fs.resources_reimported.is_connected(_when_resources_reimported):
		fs.resources_reimported.connect(_when_resources_reimported)


func _exit_tree() -> void:
	var fs : EditorFileSystem = get_editor_interface().get_resource_filesystem()
	if fs.resources_reimported.is_connected(_when_resources_reimported):
		fs.resources_reimported.disconnect(_when_resources_reimported)

	if _dock != null:
		remove_control_from_bottom_panel(_dock)
		_dock.free()
		_dock = null

	if _importer != null:
		remove_import_plugin(_importer)
		_importer = null


func _notification(what : int) -> void:
	if what == NOTIFICATION_POST_ENTER_TREE:
		if _importer != null:
			return
		get_editor_interface().set_plugin_enabled("GodotInk", false)
		printerr(
			"GodotInk could not be loaded.\n" +
			"Make sure your .csproj file references GodotInk.props, and rebuild the solution.\n" +
			"See the installation guide for more information: https://github.com/paulloz/godot-ink/wiki\n" +
			"If you think this is not an issue on your end, please open a bug report: https://github.com/paulloz/godot-ink/issues/new/choose"
		)


func _when_resources_reimported(resources : PackedStringArray) -> void:
	if _dock == null:
		return

	for resource in resources:
		if resource.get_extension() == "ink":
			_dock.call("WhenInkResourceReimported")
			return