backend/usage_counter.py

import json
import os

BASE = os.path.dirname(os.path.abspath(__file__))
USAGE_PATH = os.path.join(BASE, "TRIGGER_USAGE.json")

# 初始化
if not os.path.exists(USAGE_PATH):
    with open(USAGE_PATH, "w", encoding="utf-8") as f:
        json.dump({}, f)

def load_usage():
    with open(USAGE_PATH, "r", encoding="utf-8") as f:
        return json.load(f)

def save_usage(data):
    with open(USAGE_PATH, "w", encoding="utf-8") as f:
        json.dump(data, f, ensure_ascii=False, indent=2)

def record_usage(trigger):
    usage = load_usage()
    usage[trigger] = usage.get(trigger, 0) + 1
    save_usage(usage)

def get_usage(trigger):
    usage = load_usage()
    return usage.get(trigger, 0)