tool
extends Control

signal inspect_data

export(PackedScene) var resource_scene : PackedScene
export(PackedScene) var folder_entry_button_scene : PackedScene
export(String) var base_folder : String = "res://"
export(NodePath) var main_container : NodePath
export(NodePath) var folder_entry_container_path : NodePath

var _main_container : Node
var _resource_scene : Node
var _folder_entry_container : Node

var _modules : Array = Array()
var _folders : Array = Array()

func _old_ready():
	var dir : Directory = Directory.new()
	
	if dir.file_exists("res://ess_data.json"):
		var file : File = File.new()
		
		if file.open("res://ess_data.json", File.READ) == OK:
			var s : String = file.get_as_text()
			
			_folders = parse_json(s)
			
			file.close()

	_main_container = get_node(main_container)
	
	_resource_scene = resource_scene.instance()
	_main_container.add_child(_resource_scene)
	_resource_scene.owner = _main_container
	_resource_scene.connect("inspect_data", self, "inspect_data")
	
	_folder_entry_container = get_node(folder_entry_container_path)
	
	for ch in _folder_entry_container.get_children():
		ch.queue_free()
	
	var index = 0
	for f in _folders:
		if f.has("header"):
			var h : Label = Label.new()
			
			_folder_entry_container.add_child(h)
			h.owner = _folder_entry_container
			
			h.text = f["header"]
		
		var fe : Node = folder_entry_button_scene.instance()
		
		_folder_entry_container.add_child(fe)
		fe.owner = _folder_entry_container
		
		fe.text = f["name"]
		fe.tab = index
		
		fe.set_main_panel(self)
		
		index += 1
	
	set_tab(0)
#	set_tab("test")


func initialize_modules() -> void:
	_modules.clear()
	
	load_modules_at("res://")
	
	_modules.sort_custom(ModulePathSorter, "sort_ascending")
	
	for module in _modules:
		if module.has_method("load_module"):
			module.load_module()
	
func load_modules_at(path : String) -> void:
	var dir = Directory.new()
	if dir.open(path) == OK:
		dir.list_dir_begin()
		var file_name = dir.get_next()
		while file_name != "":
			if file_name == "." or file_name == "..":
				file_name = dir.get_next()
				continue

			if dir.current_is_dir():
				if path == "res://":
					load_modules_at(path + file_name)
				else:
					load_modules_at(path + "/" + file_name)
			else:
				if file_name == "game_module.tres":
					var res : Resource = null
					
					if path == "res://":
						res = ResourceLoader.load(path + file_name)
					else:
						res = ResourceLoader.load(path + "/" + file_name)
						
					if res.enabled:
						_modules.append(res)
					
			file_name = dir.get_next()
	else:
		print("An error occurred when trying to access the path: " + path)


class ModulePathSorter:
	static func sort_ascending(a, b):
		if a.resource_path < b.resource_path:
			return true
		return false


func set_tab(tab_index : int) -> void:
	hide_all()
	
	_resource_scene.show()
	_resource_scene.set_resource_type(_folders[tab_index]["folder"], _folders[tab_index]["type"])
	
func hide_all() -> void:
	_resource_scene.hide()

func inspect_data(var data : Resource) -> void:
	emit_signal("inspect_data", data)