#!/usr/bin/env bash
# ==============================================================================
# 서버 일회성: BillCare → BizCare git/배포 경로 전환
# 실행 위치: stock 서버 (aidev)
# ==============================================================================
set -euo pipefail

export PATH="/opt/homebrew/bin:/opt/homebrew/sbin:/usr/local/bin:${PATH:-/usr/bin:/bin}"

OLD_BARE="/Volumes/ADATA/git/BillCare.git"
NEW_BARE="/Volumes/ADATA/git/BizCare.git"
OLD_WT="/Users/aidev/apps/BillCare"
NEW_WT="/Users/aidev/apps/BizCare"
DEPLOY_SRC_CANDIDATES=(
  "${NEW_WT}/scripts/deploy.sh"
  "${OLD_WT}/scripts/deploy.sh"
)
HOOK_SRC_CANDIDATES=(
  "${NEW_WT}/scripts/post-receive"
  "${OLD_WT}/scripts/post-receive"
)
DEPLOY_DST="/Volumes/ADATA/git/deploy-bizcare.sh"
HOOK_DST="${NEW_BARE}/hooks/post-receive"
OLD_HOOK="${OLD_BARE}/hooks/post-receive"
LOG="/Volumes/ADATA/logs/deploy/bizcare-migrate.log"

mkdir -p "$(dirname "$LOG")" "$NEW_WT"
exec > >(tee -a "$LOG") 2>&1

echo "======================================================"
echo "  BillCare → BizCare 마이그레이션 $(date '+%Y-%m-%d %H:%M:%S')"
echo "======================================================"

[ -d "$OLD_BARE" ] || { echo "ERROR: $OLD_BARE 없음"; exit 1; }

# 1) BizCare.git bare 생성 (없으면 BillCare 미러)
if [ ! -d "$NEW_BARE" ]; then
  echo "[1] BizCare.git 미러 생성"
  git clone --mirror "$OLD_BARE" "$NEW_BARE"
else
  echo "[1] BizCare.git 존재 — BillCare 내용 fetch"
  git --git-dir="$NEW_BARE" fetch --all --prune || true
  # BillCare 최신 main 반영
  git --git-dir="$NEW_BARE" fetch "$OLD_BARE" '+refs/heads/*:refs/heads/*' || true
fi

# 2) work-tree 동기화
echo "[2] work-tree 체크아웃 → $NEW_WT"
git --git-dir="$NEW_BARE" --work-tree="$NEW_WT" checkout -f main

# 3) deploy-bizcare.sh 설치
DEPLOY_SRC=""
for c in "${DEPLOY_SRC_CANDIDATES[@]}"; do
  if [ -f "$c" ]; then DEPLOY_SRC="$c"; break; fi
done
[ -n "$DEPLOY_SRC" ] || { echo "ERROR: deploy.sh 소스 없음"; exit 1; }
cp "$DEPLOY_SRC" "$DEPLOY_DST"
chmod +x "$DEPLOY_DST"
# BillCare 이름 스크립트도 동일 내용으로 맞춤 (구 훅 호환)
cp "$DEPLOY_DST" /Volumes/ADATA/git/deploy-billcare.sh
chmod +x /Volumes/ADATA/git/deploy-billcare.sh
echo "[3] deploy-bizcare.sh 설치: $DEPLOY_DST"

# 4) BizCare post-receive 설치
HOOK_SRC=""
for c in "${HOOK_SRC_CANDIDATES[@]}"; do
  if [ -f "$c" ]; then HOOK_SRC="$c"; break; fi
done
[ -n "$HOOK_SRC" ] || { echo "ERROR: post-receive 소스 없음"; exit 1; }
mkdir -p "$(dirname "$HOOK_DST")"
cp "$HOOK_SRC" "$HOOK_DST"
chmod +x "$HOOK_DST"
echo "[4] BizCare post-receive 설치"

# 5) BillCare.git 훅 → BizCare work-tree/배포로 리다이렉트 (구 remote 호환)
cat > "$OLD_HOOK" <<'EOF'
#!/usr/bin/env bash
# BillCare.git 수신 → BizCare work-tree / deploy-bizcare.sh 로 위임
set -euo pipefail
export PATH="/opt/homebrew/bin:/opt/homebrew/sbin:/usr/local/bin:${PATH:-/usr/bin:/bin}"

# 수신은 BillCare.git 이지만 배포 정본은 BizCare
export GIT_DIR="/Volumes/ADATA/git/BillCare.git"
export WORK_TREE="/Users/aidev/apps/BizCare"
DEPLOY_SCRIPT="/Volumes/ADATA/git/deploy-bizcare.sh"
DEPLOY_LOG="/Volumes/ADATA/logs/deploy/bizcare-deploy.log"
HOOK_TAG="[billcare→bizcare-post-receive]"

mkdir -p "$(dirname "$DEPLOY_LOG")" "$WORK_TREE"

echo ""
echo "$(date '+%Y-%m-%d %H:%M:%S') $HOOK_TAG BillCare.git 수신 → BizCare 배포로 위임"

while read -r OLDREV NEWREV REFNAME; do
  BRANCH_NAME="${REFNAME#refs/heads/}"
  echo "$(date '+%Y-%m-%d %H:%M:%S') $HOOK_TAG 브랜치: $BRANCH_NAME"

  # BizCare.git 에도 동일 커밋 반영 (정본 bare 동기화)
  if [ -d /Volumes/ADATA/git/BizCare.git ]; then
    git --git-dir=/Volumes/ADATA/git/BizCare.git fetch "$GIT_DIR" "+${REFNAME}:${REFNAME}" 2>/dev/null || true
  fi

  if [ "$BRANCH_NAME" = "main" ]; then
    export SERVICE_NAME="${SERVICE_NAME:-all}"
    # deploy 스크립트가 BizCare.git 을 기본으로 쓰므로 정본으로 전환
    export GIT_DIR="/Volumes/ADATA/git/BizCare.git"
    if [ ! -x "$DEPLOY_SCRIPT" ]; then
      echo "$(date '+%Y-%m-%d %H:%M:%S') $HOOK_TAG [ERROR] $DEPLOY_SCRIPT 없음"
      exit 1
    fi
    "$DEPLOY_SCRIPT" 2>&1 | tee -a "$DEPLOY_LOG"
    EXIT_CODE=${PIPESTATUS[0]}
    [ "$EXIT_CODE" -eq 0 ] || exit "$EXIT_CODE"
    echo "$(date '+%Y-%m-%d %H:%M:%S') $HOOK_TAG 배포 완료 → https://bizcare.exdev.co.kr"
  fi
done
EOF
chmod +x "$OLD_HOOK"
echo "[5] BillCare.git 훅을 BizCare 배포 위임으로 교체"

# 6) 구 billcare 컨테이너 정리 (포트 83/18082/3308 확보)
echo "[6] 구 billcare 컨테이너 중지 + DB 볼륨 보존"
if [ -f "$OLD_WT/docker-compose.yml" ]; then
  (cd "$OLD_WT" && docker compose down --remove-orphans) || true
fi
docker rm -f billcare-frontend billcare-backend billcare-mysql 2>/dev/null || true
docker rm -f bizcare-frontend bizcare-backend bizcare-mysql 2>/dev/null || true

# 라이브 데이터가 billcare_billcare_mysql 에 있으면 bizcare 프로젝트 볼륨으로 복사
LIVE_DB="billcare_billcare_mysql"
LIVE_UP="billcare_billcare_uploads"
NEW_DB="bizcare_bizcare_mysql"
NEW_UP="bizcare_bizcare_uploads"
if docker volume inspect "$LIVE_DB" >/dev/null 2>&1; then
  echo "[6b] MySQL 볼륨 복사: $LIVE_DB → $NEW_DB"
  docker volume create "$NEW_DB" >/dev/null
  docker run --rm -v "$LIVE_DB":/from:ro -v "$NEW_DB":/to alpine:3.20 \
    sh -c 'if [ ! -f /to/ibdata1 ]; then cp -a /from/. /to/; echo copied-db; else echo target-db-exists-skip; fi'
fi
if docker volume inspect "$LIVE_UP" >/dev/null 2>&1; then
  echo "[6c] uploads 볼륨 복사: $LIVE_UP → $NEW_UP"
  docker volume create "$NEW_UP" >/dev/null
  docker run --rm -v "$LIVE_UP":/from:ro -v "$NEW_UP":/to alpine:3.20 \
    sh -c 'mkdir -p /to; cp -a /from/. /to/; echo copied-uploads'
fi

# 7) BizCare 배포 실행
echo "[7] BizCare 배포 실행"
export GIT_DIR="$NEW_BARE"
export WORK_TREE="$NEW_WT"
export SERVICE_NAME=all
"$DEPLOY_DST"

echo "======================================================"
echo "  마이그레이션 완료"
echo "  bare : $NEW_BARE"
echo "  wt   : $NEW_WT"
echo "  URL  : https://bizcare.exdev.co.kr"
echo "  로컬: git remote set-url origin ssh://aidev@stock.exdev.co.kr/Volumes/ADATA/git/BizCare.git"
echo "======================================================"