#!/bin/bash
set -e

STAMP="$(date +%Y%m%d-%H%M%S)"
cp app.py "app.py.auto-expire-pending.${STAMP}.bak"

python3 <<'PY'
from pathlib import Path

p = Path("app.py")
text = p.read_text()

anchor = "def portal_invoice"

if anchor not in text:
    raise SystemExit("FAILED: portal_invoice route not found")

# find insertion point (start of function body)
idx = text.index(anchor)
start = text.index(":", idx) + 1

inject_code = '''
    # === AUTO-EXPIRE STALE PENDING CRYPTO PAYMENTS ===
    try:
        from datetime import datetime, timedelta

        conn2 = get_db_connection()
        cur2 = conn2.cursor(dictionary=True)

        cur2.execute(
            "SELECT id, payment_status, txid, created_at "
            "FROM payments "
            "WHERE invoice_id = %s AND payment_method = 'crypto' "
            "ORDER BY id DESC LIMIT 1",
            (invoice_id,)
        )
        last_payment = cur2.fetchone()

        if last_payment:
            is_pending = str(last_payment.get("payment_status") or "").lower() == "pending"
            has_tx = bool(last_payment.get("txid"))

            created_at = last_payment.get("created_at")
            is_expired = False

            if created_at:
                is_expired = datetime.utcnow() > (created_at + timedelta(minutes=15))

            if is_pending and not has_tx and is_expired:
                cur2.execute(
                    "UPDATE payments SET payment_status = 'expired' WHERE id = %s",
                    (last_payment["id"],)
                )
                conn2.commit()
                print(f"[auto-expire] expired stale payment id={last_payment['id']} invoice_id={invoice_id}")

        conn2.close()

    except Exception as e:
        print(f"[auto-expire] error: {e}")
    # === END AUTO-EXPIRE ===
'''

text = text[:start] + inject_code + text[start:]

p.write_text(text)
print("OK: auto-expire logic injected cleanly")
PY

python3 -m py_compile app.py
echo "PY_COMPILE_OK"

sudo systemctl restart otb_billing
sudo systemctl status otb_billing --no-pager -l