#!/usr/bin/env bash
set -euo pipefail

TARGET_DIR="${1:?target dir required}"
STAGE="${2:-production}"

BACKEND_DIR="$TARGET_DIR/backend"
CURRENT_LINK="/opt/yourpart"
CURRENT_BACKEND="$CURRENT_LINK/backend"
DATA_DIR="/opt/yourpart-data"

echo "Updating YourPart Backend..."
echo "Ziel: $BACKEND_DIR"
echo "Using STAGE: $STAGE"
echo "NOTE: .env files will NOT be overwritten"

cd "$BACKEND_DIR"

echo "Lösche alle generierten Verzeichnisse..."
rm -rf node_modules/.cache/
rm -rf logs/
rm -rf tmp/

echo "Installing dependencies..."
npm ci --production

echo "Übernehme .env-Dateien vom Live-System..."

SOURCE_ENV="/opt/yourpart/backend/.env"
TARGET_ENV="$BACKEND_DIR/.env"

echo "Quelle: $SOURCE_ENV"
echo "Ziel:   $TARGET_ENV"

sudo -n ls -l "$SOURCE_ENV"
sudo -n install -m 600 -o yourpart -g yourpart "$SOURCE_ENV" "$TARGET_ENV"

echo "Prüfe kopierte Datei..."
ls -l "$TARGET_ENV"
sudo -n head -n 1 "$TARGET_ENV" >/dev/null

echo "✓ .env-Datei wurde übernommen"

sudo -n mkdir -p "$DATA_DIR/adult-verification"

if [ -f "$BACKEND_DIR/.env" ]; then
    echo "✓ .env-Datei ist vorhanden"
else
    echo "⚠ WARNUNG: Keine .env-Datei in $BACKEND_DIR gefunden!"
fi
echo "Setting permissions..."
sudo -n chown -R yourpart:yourpart "$BACKEND_DIR"
sudo -n chmod -R 755 "$BACKEND_DIR"
sudo -n chown -R yourpart:yourpart "$DATA_DIR"
sudo -n chmod -R 755 "$DATA_DIR"

echo "Updating systemd service..."
sudo -n cp "$TARGET_DIR/yourpart.service" /etc/systemd/system/
sudo -n systemctl daemon-reload

echo "Running database synchronization..."
cd "$BACKEND_DIR"
export STAGE="$STAGE"

echo "Backend update completed!"
rm -rf "$TEMP_ENV_DIR"