from config import MATERIALS_JSON, CODES_JSON
import json

def get_all_contributors():
    contributors = set()
    try:
        with open(MATERIALS_JSON, 'r', encoding='utf-8') as f:
            data = json.load(f)
            for item in data:
                if "contributor" in item and item["contributor"].strip():
                    contributors.add(item["contributor"].strip())
    except Exception:
        pass
    try:
        with open(CODES_JSON, 'r', encoding='utf-8') as f:
            data = json.load(f)
            for item in data:
                if "contributor" in item and item["contributor"].strip():
                    contributors.add(item["contributor"].strip())
    except Exception:
        pass
    return "，".join(sorted(contributors)) if contributors else "暂无贡献人"