# Vector Graphics Library
# vgllib.py
import pygame
import uuid
import time
import threading
import copy

class Aux():
    def gettime():
        return round(time.time(), 1)
    def getprogress(task):
        return (Aux.gettime() - task["start"] / task["duration"])
    def tuple_scale(tup, mul):
        return (tup[0]*mul, tup[1]*mul)
    def pixelizer(arg, base):
        if not isinstance(base, tuple):
            base = base.size
        if isinstance(arg, int):
            return arg * base
        else:
            if len(arg) == 2:
                return (round(arg[0] * base[0]), round(arg[1] * base[1])) 
            if len(arg) == 4:
                return (round(arg[0] * base[0]), round(arg[1] * base[1]), round(arg[2] * base[0]), round(arg[3] * base[1])) 

class Element(object):
    is_hide = False
    is_template = True
    attached = None
    attached_frame = None
    attached_window = None
    tasks = dict()
    def __init__(self, name="Element"):
        self.name = name
    def attach(self, frame_object, clone_name=""):
        if clone_name == "":
            clone_name = str(uuid.uuid4())
        clone = copy.deepcopy(self)
        clone.is_template = False
        frame_object.elements[clone_name] = clone
        clone.attached_frame = frame_object
        clone.attached_window = frame_object.attached_window
        return clone
    def teleport(self, delta: tuple):
        if not self.is_template:
            pass
    def add_task(self, group, start_time, duration, **kwargs):
        if group not in self.tasks():
            self.tasks[group] = list() 
        self.tasks[group].append({"start": start_time, "duration":duration, "para":kwargs})
    def render():
        print("未配置渲染器")
        pass
    def update():
        pass

class Frame(object):
    surface = None
    elements = dict()
    is_hide = False
    is_template = True
    attached_window = None
    poscale: tuple = (0, 0) # 左上角, 对于每个实例的位置矢量
    def __init__(self, name="Frame"):
        self.name = name
    def attach(self, window_object, poscale, clone_name=""):
        if clone_name == "":
            clone_name = str(uuid.uuid4())
        clone = copy.deepcopy(self)
        clone.surface = pygame.Surface(window_object.size)
        clone.poscale = poscale
        clone.is_template = False
        clone.attached_window = window_object
        window_object.frames[clone_name] = clone
        return window_object.frames[clone_name]
    def render(self):
        for i in self.elements.values():
            i.render()
        self.attached_window.screen.blit(self.surface, self.poscale)

class Window(object):
    frames = dict()
    def __init__(self, title="Vector Graphic Layer Window", size: tuple=(1024,768)):
        self.title = title
        self.size = size
        self.running = 1
        pygame.init()
        self.screen = pygame.display.set_mode(size)
        pygame.display.set_caption(title)
    def set_title(self, title):
        self.title = title
        pygame.display.set_caption(title)
    def start(self):
        self.thr = threading.Thread(target=self.main_loop, name="main_loop")
        self.thr.start()
    def kill(self):
        self.running = 0
    def main_loop(self):
        while self.running:
            for event in pygame.event.get():
                if event.type == pygame.QUIT:
                    self.running = 0
            for i in self.frames.values():
                i.render()
            pygame.display.flip()
            pygame.time.delay(10)
        pygame.quit()