# --- Configuration ---
MANIM_SCRIPT_FILE = "proof.py"
MANIM_SCENE_NAME = "PythagoreanTheorem"
OUTPUT_VIDEO_PATH = f"media/videos/proof/480p15/{MANIM_SCENE_NAME}.mp4"


def render_manim_video():
    """
    This function runs the Manim command to render the video.
    It cleans up old media files and returns the path to the new video.
    """
    # 1. Clean up previous renders to avoid errors
    if os.path.exists("media"):
        shutil.rmtree("media")

    # 2. Ensure output directory exists
    os.makedirs(os.path.dirname(OUTPUT_VIDEO_PATH), exist_ok=True)

    # 3. Construct and run the Manim command
    command = [
        "manim",
        "-ql",
    ]

    try:
        # Execute the command
        process = subprocess.run(
            command,
            check=True,
        )
        print("Manim STDOUT:", process.stdout)

        # 4. Return the path to the generated video
        if os.path.exists(OUTPUT_VIDEO_PATH):


            return OUTPUT_VIDEO_PATH
        else:
            raise gr.Error("Video file was not created. Check the Manim logs.")

    except subprocess.CalledProcessError as e:
        # If the command fails, raise an error with the logs
        print("Manim STDERR:", e.stderr)
        raise gr.Error(f"Manim failed to render. Error: {e.stderr}")
    except Exception as e:
        raise gr.Error(f"An unexpected error occurred: {str(e)}")

# --- Create the Gradio Interface ---
with gr.Blocks() as demo:
    gr.Markdown("# Interactive Manim: Pythagorean Theorem Proof")
    gr.Markdown(
        outputs=[output_video]
    )

# --- Launch the App ---
demo.launch(server_name="0.0.0.0", share=True)