import os
import json
import argparse

def check_file(path):
    with open(path, "r", encoding="utf-8") as f:
        data = json.load(f)  # 这里假设每个文件是一个 JSON 数组
    total = len(data)
    # 转换成字符串来判断重复（保证字典可哈希）
    unique = len({json.dumps(item, sort_keys=True) for item in data})
    duplicates = total - unique
    return total, duplicates

def main():
    parser = argparse.ArgumentParser(description="Check JSON array dataset files for row count and duplicates.")
    parser.add_argument("folder", help="Folder containing the JSON files")
    args = parser.parse_args()

    folder = args.folder
    for fname in sorted(os.listdir(folder)):
        fpath = os.path.join(folder, fname)
        if not os.path.isfile(fpath):
            continue
        if not fname.endswith(".json"):
            continue
        try:
            total, duplicates = check_file(fpath)
            print(f"{fname:25} rows={total:6}  duplicates={duplicates:4}")
        except Exception as e:
            print(f"{fname:25} [ERROR: {e}]")

if __name__ == "__main__":
    main()