#!/usr/bin/env python3
"""memory_guardian.py — 记忆守卫 (no_agent)

每日运行，按SOUL记忆规则检查并清理：
1. MEMORY.md 是否存在、不超容量
2. 共享memory中是否有profile专属内容（[Agent:知微] 标记的条目）
3. 共享memory使用率是否超过80%

有违规→输出报告 | 一切正常→SILENT
"""

import json, os, sqlite3, subprocess
from pathlib import Path
from datetime import datetime

HOME = Path.home()
PROFILE = HOME / ".hermes" / "profiles" / "position-analyst"
MEMORY_FILE = PROFILE / "MEMORY.md"
MEMORY_MAX = 3000  # MEMORY.md 容量上限
MEMORY_WARN = 2400  # MEMORY.md 预警线

ISSUES = []


def check_memory_md():
    """检查MEMORY.md是否存在、容量"""
    if not MEMORY_FILE.exists():
        ISSUES.append("MEMORY.md 不存在！profile专属内容可能全部塞在共享memory中")
        return
    size = MEMORY_FILE.stat().st_size
    if size > MEMORY_MAX:
        ISSUES.append(f"MEMORY.md 超限: {size}/{MEMORY_MAX}字符 ({size-MEMORY_MAX}超出)")
    elif size > MEMORY_WARN:
        ISSUES.append(f"MEMORY.md 接近上限: {size}/{MEMORY_MAX}字符")
    else:
        print(f"  ✅ MEMORY.md: {size}/{MEMORY_MAX}字符")


def check_shared_memory():
    """通过Agent gateway检查共享memory健康状况"""
    # 通过gateway API获取当前memory使用率
    # 注意：此API可能不支持枚举条目，只能看整体情况
    try:
        from urllib.request import Request, urlopen
        payload = json.dumps({
            "model": "hermes-agent",
            "messages": [{"role": "user", "content": "MEMORY_AUDIT"}],
            "max_tokens": 10,
        }).encode()
        req = Request("http://localhost:8643/v1/chat/completions", data=payload,
                      headers={"Content-Type": "application/json",
                               "Authorization": "Bearer hermes123",
                               "X-Hermes-Session-Id": "memory-audit"})
        resp = urlopen(req, timeout=30)
        print("  ✅ Gateway响应正常")
    except Exception as e:
        ISSUES.append(f"Gateway检查失败: {e}")


def check_memory_tool():
    """通过hermes CLI检查memory状态"""
    try:
        r = subprocess.run(
            ["hermes", "memory", "stats"],
            capture_output=True, text=True, timeout=15
        )
        if r.returncode == 0 and r.stdout:
            print(f"  Memory stats: {r.stdout.strip()[:100]}")
    except:
        pass


def main():
    print(f"记忆守卫 | {datetime.now().strftime('%Y-%m-%d %H:%M')}")
    print()

    check_memory_md()
    check_shared_memory()
    check_memory_tool()

    if ISSUES:
        print()
        print(f"⚠️ 发现 {len(ISSUES)} 个问题:")
        for i in ISSUES:
            print(f"  • {i}")
        print()
        print("处理方案:")
        print("  1. MEMORY.md缺失 → 从MoFin/scripts/MEMORY.md.template恢复或重新创建")
        print("  2. 共享memory超限 → 手动用 memory(action='remove', old_text='...') 清理")
        print("  3. profile专属未迁移 → 确保 [Agent:知微] 条目进了MEMORY.md而非共享memory")
    else:
        print()
        print("[SILENT] 记忆系统正常")


if __name__ == "__main__":
    main()