import cv2
import tempfile
from utils.fault_detection import detect_faults
from utils.image_processing import preprocess_image
import os

def process_video(video_path, frame_interval=30):
    cap = cv2.VideoCapture(video_path)
    fps = cap.get(cv2.CAP_PROP_FPS)
    frame_count = 0
    fault_report = []
    annotated_frames = []

    fourcc = cv2.VideoWriter_fourcc(*'mp4v')
    temp_out = tempfile.NamedTemporaryFile(delete=False, suffix=".mp4")
    out = cv2.VideoWriter(temp_out.name, fourcc, fps, (int(cap.get(3)), int(cap.get(4))))

    while cap.isOpened():
        ret, frame = cap.read()
        if not ret:
            break

        if frame_count % frame_interval == 0:
            processed = preprocess_image(frame)
            faults, annotated = detect_faults(processed)
            for f in faults:
                f["frame"] = frame_count
                fault_report.append(f)
            out.write(annotated)
        else:
            out.write(frame)

        frame_count += 1

    cap.release()
    out.release()

    return temp_out.name, fault_report