import cv2, os
import numpy as np
from tqdm import tqdm
import uuid 

def paste_pic(video_path, pic_path, crop_info, new_audio_path, full_video_path):

    full_img = cv2.imread(pic_path)
    print(full_img.dtype)
    frame_h = full_img.shape[0]
    frame_w = full_img.shape[1]

    video_stream = cv2.VideoCapture(video_path)
    fps = video_stream.get(cv2.CAP_PROP_FPS)
    crop_frames = []
    while 1:
        still_reading, frame = video_stream.read()
        if not still_reading:
            video_stream.release()
            break
        crop_frames.append(frame)
    
    if len(crop_info) != 3:
        print("you didn't crop the image")
        return
    else:
        r_w, r_h = crop_info[0]
        clx, cly, crx, cry = crop_info[1]
        lx, ly, rx, ry = crop_info[2]
        lx, ly, rx, ry = int(lx), int(ly), int(rx), int(ry)
        oy1, oy2, ox1, ox2 = cly+ly, cly+ry, clx+lx, clx+rx

    tmp_path = str(uuid.uuid4())+'.mp4'
    out_tmp = cv2.VideoWriter(tmp_path, cv2.VideoWriter_fourcc(*'MP4V'), fps, (frame_w, frame_h))
    for crop_frame in tqdm(crop_frames, 'seamlessClone:'):
        p = cv2.resize(crop_frame.astype(np.uint8), (r_w, r_h)) 

        mask = 255*np.ones(p.shape, p.dtype)
        location = ((ox1+ox2) // 2, (oy1+oy2) // 2)
        gen_img = cv2.seamlessClone(p, full_img, mask, location, cv2.NORMAL_CLONE)

        #full_img[oy1:oy2, ox1:ox2] = p
        out_tmp.write(gen_img)
    out_tmp.release()
    cmd = r'ffmpeg -y -i "%s" -i "%s"  "%s"' % (tmp_path, new_audio_path, full_video_path)
    os.system(cmd)
    os.remove(tmp_path)