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

APP_NAME="n8n"
APP_DIR="/opt/apps/${APP_NAME}"

# ВАЖНО: RAW_BASE должен указывать на ЭТОТ репозиторий n8n
RAW_BASE="https://git.yalu.pro/evgeny/n8n/raw/branch/main"

need() { command -v "$1" >/dev/null 2>&1; }

echo "==> Installing ${APP_NAME} into ${APP_DIR}"

if [[ $EUID -ne 0 ]]; then
  echo "ERROR: run as root"
  exit 1
fi

mkdir -p "$APP_DIR"
cd "$APP_DIR"

# Install Docker if missing (Debian/Ubuntu)
if ! need docker; then
  echo "==> Docker not found. Installing Docker..."
  apt-get update
  apt-get install -y ca-certificates curl gnupg

  install -m 0755 -d /etc/apt/keyrings
  curl -fsSL https://download.docker.com/linux/debian/gpg | gpg --dearmor -o /etc/apt/keyrings/docker.gpg
  chmod a+r /etc/apt/keyrings/docker.gpg

  . /etc/os-release
  echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/${ID} ${VERSION_CODENAME} stable" \
    > /etc/apt/sources.list.d/docker.list

  apt-get update
  apt-get install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
fi

echo "==> Fetching docker-compose.yml and .env"
curl -fsSL "${RAW_BASE}/docker-compose.yml" -o docker-compose.yml

if [[ ! -f .env ]]; then
  curl -fsSL "${RAW_BASE}/.env" -o .env
  echo "==> Created .env from repo (edit it if needed): ${APP_DIR}/.env"
else
  echo "==> .env already exists, keeping it: ${APP_DIR}/.env"
fi

echo "==> Starting ${APP_NAME}"
docker compose up -d

echo "✅ Done."
docker compose ps