# app/core/animations/transitions.py
from pathlib import Path
from typing import Dict

def fade_transition(svg_path: Path, working_dir: Path, task_meta: Dict) -> Dict:
    scene_name = "FadeTransition"
    scene_code = f'''
from manim import *
class {scene_name}(Scene):
    def construct(self):
        bg = Rectangle(width=14, height=8).set_fill(BLACK, opacity=0)
        self.play(FadeIn(bg), run_time=0.5)
        self.wait(0.1)
'''
    return {"scene_name": scene_name, "scene_code": scene_code}

def slide_transition(svg_path: Path, working_dir: Path, task_meta: Dict) -> Dict:
    scene_name = "SlideTransition"
    scene_code = f'''
from manim import *
class {scene_name}(Scene):
    def construct(self):
        # TODO: create in/out slides
        self.wait(0.5)
'''
    return {"scene_name": scene_name, "scene_code": scene_code}