"""SQLite — geheugen van de agent (dedupe, incidenten)."""
import json
import sqlite3
from datetime import datetime, timedelta
from pathlib import Path

DB_PATH = Path(__file__).resolve().parent.parent / "data" / "agent.db"


def connect():
    DB_PATH.parent.mkdir(parents=True, exist_ok=True)
    conn = sqlite3.connect(DB_PATH)
    conn.row_factory = sqlite3.Row
    conn.executescript(
        """
        CREATE TABLE IF NOT EXISTS incidents (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            fingerprint TEXT NOT NULL,
            severity TEXT NOT NULL,
            title TEXT NOT NULL,
            body TEXT NOT NULL,
            created_at TEXT NOT NULL,
            notified INTEGER DEFAULT 0
        );
        CREATE INDEX IF NOT EXISTS idx_fp ON incidents(fingerprint);
        CREATE TABLE IF NOT EXISTS runs (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            started_at TEXT NOT NULL,
            summary TEXT,
            raw_observations TEXT
        );
        """
    )
    return conn


def was_notified_recently(fingerprint: str, minutes: int) -> bool:
    since = (datetime.utcnow() - timedelta(minutes=minutes)).isoformat()
    conn = connect()
    row = conn.execute(
        "SELECT 1 FROM incidents WHERE fingerprint=? AND notified=1 AND created_at>?",
        (fingerprint, since),
    ).fetchone()
    conn.close()
    return row is not None


def record_incident(fingerprint: str, severity: str, title: str, body: str, notified: bool):
    conn = connect()
    conn.execute(
        "INSERT INTO incidents (fingerprint, severity, title, body, created_at, notified) VALUES (?,?,?,?,?,?)",
        (fingerprint, severity, title, body, datetime.utcnow().isoformat(), 1 if notified else 0),
    )
    conn.commit()
    conn.close()


def recent_incidents(limit: int = 10) -> list[dict]:
    conn = connect()
    rows = conn.execute(
        "SELECT severity, title, body, created_at FROM incidents ORDER BY id DESC LIMIT ?",
        (limit,),
    ).fetchall()
    conn.close()
    return [dict(r) for r in rows]


def log_run(summary: str, observations: dict):
    conn = connect()
    conn.execute(
        "INSERT INTO runs (started_at, summary, raw_observations) VALUES (?,?,?)",
        (datetime.utcnow().isoformat(), summary, json.dumps(observations, default=str)),
    )
    conn.commit()
    conn.close()