import json
import re

def sort_pairs_by_ai_image(input_path, output_path):
    # '..._<숫자1>_<숫자2>.jpg' 패턴: prefix는 숫자1 전까지 전부
    pattern = re.compile(r"(.+)_(\d+)_(\d+)\.jpg$")
    entries = []

    # 1. 읽어서 (prefix, num1, num2, entry)로 저장
    with open(input_path, 'r', encoding='utf-8') as infile:
        for line in infile:
            entry = json.loads(line)
            ai_img = entry.get('ai_image', '')
            m = pattern.match(ai_img)
            if m:
                prefix, num1, num2 = m.groups()
                entries.append((prefix, int(num1), int(num2), entry))
            else:
                # 패턴 안 맞으면 맨 뒤로
                entries.append((ai_img, float('inf'), float('inf'), entry))

    # 2. (prefix, num1, num2) 순서로 정렬
    entries.sort(key=lambda x: (x[0], x[1], x[2]))

    # 3. new_pairs.jsonl에 기록
    with open(output_path, 'w', encoding='utf-8') as outfile:
        for _, _, _, entry in entries:
            outfile.write(json.dumps(entry, ensure_ascii=False) + '\n')

if __name__ == "__main__":
    sort_pairs_by_ai_image("pairs.jsonl", "new_pairs.jsonl")
    print("✅ new_pairs.jsonl 생성 완료했어! 😉")