#!/bin/sh
#
# upgrade-paperless-postgres.sh
# Ablauf: Paperless -> Postgres -> Paperless (im BastilleBSD-Jail)
#

set -e  # bei Fehler abbrechen

JAIL="paperless"
DB_NAME="paperless"
DB_USER="paperless"
OLD_PG_VER="16"
NEW_PG_VER="17"
BACKUP_DIR="/root/pg_backup"
DUMPFILE="$BACKUP_DIR/paperless_$(date +%Y%m%d_%H%M%S).sql"

echo ">>> Schritt 1: Paperless-Services im Jail stoppen"
bastille cmd $JAIL service paperless stop || true
bastille cmd $JAIL service redis stop || true

echo ">>> Schritt 2: Postgres-Dump ziehen"
bastille cmd $JAIL mkdir -p "$BACKUP_DIR"
bastille cmd $JAIL su - postgres -c "\"pg_dump -U $DB_USER $DB_NAME > $DUMPFILE\""
echo "Backup gespeichert unter: $DUMPFILE"

echo ">>> Schritt 3: Alte Postgres-Instanz im Jail stoppen"
bastille cmd $JAIL service postgresql stop || true

echo ">>> Schritt 4: Neue Postgres-Version installieren"
bastille cmd $JAIL pkg install -y postgresql${NEW_PG_VER}-server postgresql${NEW_PG_VER}-client

echo ">>> Schritt 5: Neues Datenverzeichnis initialisieren"
bastille cmd $JAIL mv /var/db/postgres/data${OLD_PG_VER} /var/db/postgres/data${OLD_PG_VER}.old.$(date +%s) || true
bastille cmd $JAIL sysrc postgresql_enable="YES"
bastille cmd $JAIL service postgresql initdb
bastille cmd $JAIL service postgresql start

echo ">>> Schritt 6: Backup einspielen"
bastille cmd $JAIL su - postgres -c "\"psql -U $DB_USER -d $DB_NAME -f $DUMPFILE\""

echo ">>> Schritt 7: Paperless-Upgrade (auto erkennen)"
if bastille cmd $JAIL pkg info paperless-ngx >/dev/null 2>&1; then
    echo ">>> Paperless via pkg erkannt – Upgrade mit pkg"
    bastille cmd $JAIL pkg upgrade -y paperless-ngx
elif bastille cmd $JAIL pip show paperless-ngx >/dev/null 2>&1; then
    echo ">>> Paperless via pip erkannt – Upgrade mit pip"
    bastille cmd $JAIL pip install -U paperless-ngx
else
    echo ">>> WARNUNG: Paperless-Installation nicht gefunden!"
    exit 1
fi

echo ">>> Schritt 8: Datenbankmigration Paperless"
bastille cmd $JAIL sh -c "cd /usr/local/lib/python3.11/site-packages/paperless && python3.11 manage.py migrate"

echo ">>> Schritt 9: Dienste starten"
bastille cmd $JAIL service redis start
bastille cmd $JAIL service paperless start

echo ">>> Upgrade abgeschlossen ✅"