#!/usr/bin/env bash
set -e

### ===== 설정값 =====
GIT_REPO="git@git.siane.kr:firstgarden/caddyfile.git"
CADDY_USER="caddy"
HOME_DIR="/root"
CADDY_HOME="${HOME_DIR}/caddy"
CADDY_ETC="/etc/caddy"
CONF_DIR="${CADDY_ETC}/conf.d"

echo "== Caddy LXC bootstrap 시작 =="

### 1. 필수 패키지 확인
echo "[1/6] 필수 패키지 설치"
apt update
apt install -y git curl

### 2. git clone
if [ -d "${CADDY_HOME}" ]; then
    echo "⚠ ${CADDY_HOME} 이미 존재, clone 생략"
else
    echo "[2/6] Caddy 설정 repo clone"
    git clone "${GIT_REPO}" "${CADDY_HOME}"
fi

### 3. /etc/caddy 구조 준비
echo "[3/6] /etc/caddy 디렉터리 확인"
mkdir -p "${CADDY_ETC}"
mkdir -p "${CONF_DIR}"

### 4. 심볼릭 링크 설정
echo "[4/6] 심볼릭 링크 생성"

# Caddyfile
if [ ! -L "${CADDY_ETC}/Caddyfile" ]; then
    ln -s "${CADDY_HOME}/Caddyfile" "${CADDY_ETC}/Caddyfile"
fi

# conf.d
if [ ! -L "${CONF_DIR}" ]; then
    rm -rf "${CONF_DIR}"
    ln -s "${CADDY_HOME}/conf.d" "${CONF_DIR}"
fi

### 5. 권한 설정
echo "[5/6] 권한 정리"
chown -R ${CADDY_USER}:${CADDY_USER} "${CADDY_ETC}"
chown -R ${CADDY_USER}:${CADDY_USER} "${CADDY_HOME}"

### 6. Caddy 설정 검증
echo "[6/6] Caddy 설정 검증"
caddy validate --config "${CADDY_ETC}/Caddyfile" || {
    echo "❌ Caddy 설정 검증 실패"
    exit 1
}

echo "✅ bootstrap 완료"
echo "👉 sudo systemctl reload caddy"