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

ensure_root
detect_pkg_manager
pkg_install curl

echo ""
read -p "Instanz Nummer (z.B. 1, 2, 3...): " INSTANCE
BASE="/srv/docker/services/paperless-$INSTANCE"
$SUDO mkdir -p "$BASE/data" "$BASE/media" "$BASE/consume"
cd "$BASE"

PORT=$((8100 + INSTANCE))
echo "Web-Port wird: $PORT"

echo ""
echo "Paperless Variante:"
echo "  1) Paperless-NGX (ohne KI)"
echo "  2) Paperless-AI (mit KI/RAG)"
read -p "Auswahl (1/2): " MODE

if [[ "$MODE" == "2" ]]; then
  read -p "KI Backend URL (z.B. http://127.0.0.1:11434): " AI_URL
  read -p "Memory Server URL (z.B. http://127.0.0.1:8085): " MEMORY_URL
fi

echo ""
echo "Instanz $INSTANCE ersetzen ohne Daten zu löschen?"
read -p "(y/n): " REPLACE

if [[ "$REPLACE" =~ ^[Yy]$ ]]; then
  $SUDO docker compose down || true
fi

if [[ "$MODE" == "1" ]]; then
cat > docker-compose.yml <<EOF
services:
  paperless-$INSTANCE:
    image: ghcr.io/paperless-ngx/paperless-ngx:latest
    container_name: paperless-$INSTANCE
    restart: unless-stopped
    ports:
      - "$PORT:8000"
    volumes:
      - ./data:/usr/src/paperless/data
      - ./media:/usr/src/paperless/media
      - ./consume:/usr/src/paperless/consume
    environment:
      TZ=Europe/Berlin
EOF
fi

if [[ "$MODE" == "2" ]]; then
cat > docker-compose.yml <<EOF
services:
  paperless-$INSTANCE:
    image: ghcr.io/paperless-ngx/paperless-ngx:latest
    container_name: paperless-$INSTANCE
    restart: unless-stopped
    ports:
      - "$PORT:8000"
    volumes:
      - ./data:/usr/src/paperless/data
      - ./media:/usr/src/paperless/media
      - ./consume:/usr/src/paperless/consume
    environment:
      TZ=Europe/Berlin

  paperless-ai-$INSTANCE:
    image: clusterzx/paperless-ai:latest
    container_name: paperless-ai-$INSTANCE
    restart: unless-stopped
    environment:
      PAPERLESS_AI_OPENAI_API_BASE_URL: "$AI_URL"
      PAPERLESS_AI_EMBEDDING_MODEL: "nomic-embed-text"
      PAPERLESS_AI_CHAT_MODEL: "qwen2.5:0.5b"
      PAPERLESS_AI_MEMORY_SERVER_URL: "$MEMORY_URL"
      TZ: Europe/Berlin
EOF
fi

$SUDO docker compose up -d

echo ""
echo "✅ Instanz $INSTANCE installiert!"
echo "Web UI: http://<server-ip>:$PORT"