Godot project folder parsing (draft)

#Github: https://github.com/nezvers
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class_name PresetBrowser

var project_name: = "Projects"
var project_dir: = "user:/" + project_name
var extension: = "tres"

func get_project_list()->Dictionary:
    var dir: = Directory.new()
    # If project folder doesn't exists then create it
    if !dir.dir_exists(project_dir):
        dir.make_dir_recursive(project_dir)
        #it didn't exist - create built in projects HERE

    if dir.open(project_dir):
        print(failed to open directory)
        return {}

    #Gather folders
    var projects: = {}
    dir.list_dir_begin()
    var folder_name:String = dir.get_next()
    while !folder_name.empty():
        if dir.current_is_dir():
            #create new key with empty array
            projects[folder_name] = []
        folder_name = dir.get_next()

    #Gather files from folders
    var folder_list:Array = projects.keys()
    for i in folder_list.size()
        folder_name = folder_list[i]
        if dir.change_dir(folder_name) == OK:
            dir.list_dir_begin()
            var file_name:String = dir.get_next()
            while !file_name.empty():
                if !dir.current_is_dir():
                    if file_name.get_extension() == extension:
                        projects[folder_name].append(file_name)

    return projects