import os, uuid
from flask import jsonify, send_file, request
from main import *
import torch, io
from skimage import img_as_ubyte
import imageio, base64

def text_to_video_func(prompt, output_path="output_video.mp4"):
    if text_to_video_model is None: return {"error": "Text-to-Video model not initialized."}
    video_frames_list = text_to_video_model(prompt)
    if video_frames_list and hasattr(video_frames_list, 'frames'): export_to_video_pure(video_frames_list.frames, output_video=output_path); return output_path
    return {"error": "Video generation failed."}

def export_to_video_pure(video_frames, output_video="output_video.mp4", fps=25):
    writer = imageio.get_writer(output_video, fps=fps)
    for frame in video_frames: writer.append_data(img_as_ubyte(frame))
    writer.close()

def text_to_video_api(prompt):
    output_data = text_to_video_func(prompt)
    if "error" in output_data: return {"error": output_data["error"]}
    output_file = output_data; 
    with open(output_file, 'rb') as f: video_content = f.read()
    video_base64 = base64.b64encode(video_content).decode('utf-8'); os.remove(output_file); return {"video_base64": video_base64, "mimetype": "video/mp4"}