tool 
class_name DialogicResources






const RESOURCES_DIR:String = "res://dialogic"
const WORKING_DIR:String = "user://dialogic"





static func load_json(path:String, default:Dictionary = {})->Dictionary:
	
	var file: = File.new()
	if file.open(path, File.READ) != OK:
		file.close()
		return default
	var data_text:String = file.get_as_text()
	file.close()
	if data_text.empty():
		return default
	var data_parse:JSONParseResult = JSON.parse(data_text)
	if data_parse.error != OK:
		return default
	
	var final_data = data_parse.result
	if typeof(final_data) == TYPE_DICTIONARY:
		return final_data
	
	
	return default


static func set_json(path:String, data:Dictionary):
	var file = File.new()
	var err = file.open(path, File.WRITE)
	if err == OK:
		file.store_line(JSON.print(data, "	", true))
		file.close()
	return err





static func init_dialogic_files()->void :
	
	
	
	
	var directory = Directory.new()
	var paths = get_working_directories()
	var files = get_config_files_paths()
	
	for dir in paths:
		if not directory.dir_exists(paths[dir]):
			directory.make_dir_recursive(paths[dir])
			if dir == "THEME_DIR":
				directory.copy("res://addons/dialogic/Editor/ThemeEditor/default-theme.cfg", str(paths[dir], "/default-theme.cfg"))
	
	for f in files:
		if not directory.file_exists(files[f]):
			create_empty_file(files[f])


static func get_working_directories()->Dictionary:
	return {
		"RESOURCES_DIR":RESOURCES_DIR, 
		"WORKING_DIR":WORKING_DIR, 
		"TIMELINE_DIR":RESOURCES_DIR + "/timelines", 
		"THEME_DIR":RESOURCES_DIR + "/themes", 
		"CHAR_DIR":RESOURCES_DIR + "/characters", 
		"CUSTOM_EVENTS_DIR":RESOURCES_DIR + "/custom-events", 
		"SOUNDS":RESOURCES_DIR + "/sounds"
	}


static func get_config_files_paths()->Dictionary:
	return {
		"SETTINGS_FILE":RESOURCES_DIR + "/settings.cfg", 
		"DEFAULT_DEFINITIONS_FILE":RESOURCES_DIR + "/definitions.json", 
		"FOLDER_STRUCTURE_FILE":RESOURCES_DIR + "/folder_structure.json", 
		"DEFINITIONS_DEFAULT_SAVE":WORKING_DIR + "/definitions_default_save.json", 
		"STATE_DEFAULT_SAVE":WORKING_DIR + "/state_default_save.json"
	}





static func get_path(name:String, extra:String = "")->String:
	var paths:Dictionary = get_working_directories()
	if extra != "":
		return paths[name] + "/" + extra
	else :
		return paths[name]


static func get_filename_from_path(path:String, extension = false)->String:
	var file_name:String = path.split("/")[ - 1]
	if extension == false:
		file_name = file_name.split(".")[0]
	return file_name


static func listdir(path:String)->Array:
	
	var files:Array = []
	var dir: = Directory.new()
	var err = dir.open(path)
	if err == OK:
		dir.list_dir_begin()
		var file_name = dir.get_next()
		while file_name != "":
			if not dir.current_is_dir() and not file_name.begins_with("."):
				files.append(file_name)
			file_name = dir.get_next()
		dir.list_dir_end()
	else :
		print("[Dialogic] Error while accessing path " + path + " - Error: " + str(err))
	return files


static func create_empty_file(path):
	var file = File.new()
	file.open(path, File.WRITE)
	file.store_string("")
	file.close()


static func remove_file(path:String):
	var dir = Directory.new()
	var _err = dir.remove(path)
	
	if _err != OK:
		print("[D] There was an error when deleting file at {filepath}. Error: {error}".format(
			{"filepath":path, "error":_err}
		))


static func copy_file(path_from, path_to):
	if (path_from == ""):
		push_error("[Dialogic] Could not copy empty filename")
		return ERR_FILE_BAD_PATH
		
	if (path_to == ""):
		push_error("[Dialogic] Could not copy to empty filename")
		return ERR_FILE_BAD_PATH
	
	var dir = Directory.new()
	if ( not dir.file_exists(path_from)):
		push_error("[Dialogic] Could not copy file %s, File does not exists" % [path_from])
		return ERR_FILE_NOT_FOUND
		
	if (dir.file_exists(path_to)):
		push_error("[Dialogic] Could not copy file to %s, file already exists" % [path_to])
		return ERR_ALREADY_EXISTS
		
	var error = dir.copy(path_from, path_to)
	if (error):
		push_error("[Dialogic] Error while copying %s to %s" % [path_from, path_to])
		push_error(error)
		return error
		
	return OK
	pass





static func get_config(id:String)->ConfigFile:
	var paths: = get_config_files_paths()
	var config: = ConfigFile.new()
	if id in paths.keys():
		var err = config.load(paths[id])
		if err != OK:
			print("[Dialogic] Error while opening config file " + paths[id] + ". Error: " + str(err))
	return config







static func get_timeline_json(path:String):
	return load_json(get_path("TIMELINE_DIR", path))


static func set_timeline(timeline:Dictionary):
	
	set_json(get_path("TIMELINE_DIR", timeline["metadata"]["file"]), timeline)


static func delete_timeline(filename:String):
	
	remove_file(get_path("TIMELINE_DIR", filename))







static func get_character_json(path:String):
	return load_json(get_path("CHAR_DIR", path))


static func set_character(character:Dictionary):
	
	set_json(get_path("CHAR_DIR", character["id"]), character)


static func delete_character(filename:String):
	
	remove_file(get_path("CHAR_DIR", filename))







static func get_theme_config(filename:String):
	var config = ConfigFile.new()
	var path
	if filename.begins_with("res://"):
		path = filename
	else :
		path = get_path("THEME_DIR", filename)
	var err = config.load(path)
	if err == OK:
		return config


static func set_theme_value(filename:String, section:String, key:String, value):
	
	var config = get_theme_config(filename)
	config.set_value(section, key, value)
	config.save(get_path("THEME_DIR", filename))


static func add_theme(filename:String):
	create_empty_file(get_path("THEME_DIR", filename))


static func delete_theme(filename:String):
	remove_file(get_path("THEME_DIR", filename))
	
	
static func duplicate_theme(from_filename:String, to_filename:String):
	copy_file(get_path("THEME_DIR", from_filename), get_path("THEME_DIR", to_filename))







static func get_settings_config()->ConfigFile:
	return get_config("SETTINGS_FILE")


static func set_settings_value(section:String, key:String, value):
	var config = get_settings_config()
	config.set_value(section, key, value)
	config.save(get_config_files_paths()["SETTINGS_FILE"])

static func get_settings_value(section:String, key:String, default):
	var config = get_settings_config()
	return config.get_value(section, key, default)








static func get_default_definitions()->Dictionary:
	return load_json(get_config_files_paths()["DEFAULT_DEFINITIONS_FILE"], {"variables":[], "glossary":[]})


static func save_default_definitions(data:Dictionary):
	set_json(get_config_files_paths()["DEFAULT_DEFINITIONS_FILE"], data)


static func get_default_definition_item(id:String):
	var data = get_default_definitions()
	return DialogicDefinitionsUtil.get_definition_by_id(data, id)


static func set_default_definition_variable(id:String, name:String, value):
	
	var data = get_default_definitions()
	DialogicDefinitionsUtil.set_definition_variable(data, id, name, value)
	save_default_definitions(data)


static func set_default_definition_glossary(id:String, name:String, extra_title:String, extra_text:String, extra_extra:String):
	
	var data = get_default_definitions()
	DialogicDefinitionsUtil.set_definition_glossary(data, id, name, extra_title, extra_text, extra_extra)
	save_default_definitions(data)


static func delete_default_definition(id:String):
	
	var data = get_default_definitions()
	DialogicDefinitionsUtil.delete_definition(data, id)
	save_default_definitions(data)










static func get_saves_folders()->Array:
	var save_folders = []
	var directory: = Directory.new()
	if directory.open(WORKING_DIR) != OK:
		print("[D] Error: Failed to access working directory.")
		return []
	
	directory.list_dir_begin()
	var file_name = directory.get_next()
	while file_name != "":
		if directory.current_is_dir() and not file_name.begins_with("."):
			save_folders.append(file_name)
		file_name = directory.get_next()

	return save_folders


static func add_save_folder(save_name:String)->void :
	var directory: = Directory.new()
	if directory.open(WORKING_DIR) != OK:
		print("[D] Error: Failed to access working directory.")
		return 
	directory.make_dir(save_name)
	
	var file: = File.new()
	if file.open(WORKING_DIR + "/" + save_name + "/definitions.json", File.WRITE) == OK:
		file.store_string("")
		file.close()
	if file.open(WORKING_DIR + "/" + save_name + "/state.json", File.WRITE) == OK:
		file.store_string("")
		file.close()


static func remove_save_folder(save_name:String)->void :
	var directory: = Directory.new()
	if directory.open(WORKING_DIR + "/" + save_name) != OK:
		print("[D] Error: Failed to access save folder '" + save_name + "'.")
		return 
	
	directory.list_dir_begin()
	var file_name = directory.get_next()
	while file_name != "":
		directory.remove(file_name)
		file_name = directory.get_next()
	directory.remove(WORKING_DIR + "/" + save_name)


static func reset_save(save_name:String = "")->void :
	save_state_info(save_name, {})
	save_definitions(save_name, get_default_definitions())


static func save_state_info(save_name:String, state_info:Dictionary)->void :
	if save_name == "":
		set_json(get_config_files_paths()["STATE_DEFAULT_SAVE"], state_info)
		return 
	
	if not save_name in get_saves_folders():
		add_save_folder(save_name)
	
	set_json(WORKING_DIR + "/" + save_name + "/state.json", state_info)


static func get_saved_state_info(save_name:String)->Dictionary:
	if save_name == "":
		return load_json(get_config_files_paths()["STATE_DEFAULT_SAVE"], {})
	
	if not save_name in get_saves_folders():
		return {}
	
	return load_json(WORKING_DIR + "/" + save_name + "/state.json", {})


static func save_definitions(save_name:String, definitions_info:Dictionary)->void :
	if save_name == "":
		set_json(get_config_files_paths()["DEFINITIONS_DEFAULT_SAVE"], definitions_info)
		return 
	
	if not save_name in get_saves_folders():
		add_save_folder(save_name)
	
	set_json(WORKING_DIR + "/" + save_name + "/definitions.json", definitions_info)


static func get_saved_definitions(save_name:String = "")->Dictionary:
	if save_name == "":
		return load_json(get_config_files_paths()["DEFINITIONS_DEFAULT_SAVE"], get_default_definitions())
	
	if not save_name in get_saves_folders():
		print("[D] Wasn't able to find save '" + save_name + "'. Loaded the default definitions.")
		return get_default_definitions()
	
	return load_json(WORKING_DIR + "/" + save_name + "/definitions.json", {})









static func get_resource_folder_structure()->Dictionary:
	var configFileDict = get_config_files_paths();
	return load_json(configFileDict["FOLDER_STRUCTURE_FILE"], 
		{"folders":
			{"Timelines":
				{
					"folders":{}, 
					"files":[], 
					"metadata":{"color":null, "folded":false}
				}, 
			"Characters":
				{
					"folders":{}, 
					"files":[], 
					"metadata":{"color":null, "folded":false}
				}, 
			"Definitions":
				{
					"folders":{}, 
					"files":[], 
					"metadata":{"color":null, "folded":false}
				}, 
			"Themes":
				{
					"folders":{}, 
					"files":[], 
					"metadata":{"color":null, "folded":false}
				}, 
			}, 
		"files":[]
		})

static func save_resource_folder_structure(data):
	set_json(get_config_files_paths()["FOLDER_STRUCTURE_FILE"], data)