#!/usr/bin/env python3
"""
Markiert Engramme mit access_count=0, die älter als 7 Tage sind, als 'archived'.
Reduziert Graph-Clutter und verbessert Performance.
"""

from __future__ import annotations

import json
import sqlite3
import sys
from datetime import datetime, timezone, timedelta
from pathlib import Path

BRAIN_DIR = Path("/root/.openclaw/workspace/second-brain")
DB_PATH = BRAIN_DIR / "data" / "brain.sqlite"

def run():
    now = datetime.now(timezone.utc)
    cutoff = now - timedelta(days=7)

    conn = sqlite3.connect(str(DB_PATH))
    conn.row_factory = sqlite3.Row
    c = conn.cursor()

    # Engramme finden: access_count=0 UND created_at älter als 7 Tage
    c.execute("""
        SELECT id, metadata_json FROM engrams
        WHERE json_extract(metadata_json, '$.access_count') = 0
          AND created_at < ?
    """, (cutoff.isoformat(),))
    rows = c.fetchall()

    archived = 0
    for r in rows:
        meta = json.loads(r["metadata_json"] or "{}")
        tags = meta.get("tags", [])
        if "archived" not in tags:
            tags.append("archived")
            meta["tags"] = tags
            c.execute("UPDATE engrams SET metadata_json = ?, modified_at = ? WHERE id = ?",
                      (json.dumps(meta), now.isoformat(), r["id"]))
            archived += 1

    conn.commit()
    conn.close()

    print(json.dumps({
        "success": True,
        "time": now.isoformat(),
        "archived_count": archived,
        "cutoff_date": cutoff.isoformat(),
    }, indent=2, ensure_ascii=False))

if __name__ == "__main__":
    run()