#!/usr/bin/env bash
# ==============================================================================
# exdev.co.kr — Git bare + work-tree + Jenkins 완전 재구축
# 실행 위치: 서버 (aidev@exdev.co.kr) 또는 로컬에서 ssh로 원격 실행
#
# 유지 경로 (현재 운영과 동일):
#   GIT_DIR      = /Volumes/ADATA/git/goldenChart.git
#   WORK_TREE    = /Users/aidev/apps/goldenChart
#   DEPLOY_SCRIPT= /Volumes/ADATA/git/deploy.sh
#   DEPLOY_LOG     = /Volumes/ADATA/logs/deploy/deploy.log
#   Jenkins      = http://127.0.0.1:8090  job: goldenChart-Pipeline
# ==============================================================================
set -euo pipefail

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

GIT_DIR="/Volumes/ADATA/git/goldenChart.git"
WORK_TREE="/Users/aidev/apps/goldenChart"
DEPLOY_SCRIPT="/Volumes/ADATA/git/deploy.sh"
DEPLOY_LOG="/Volumes/ADATA/logs/deploy/deploy.log"
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
REPO_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
JENKINS_HOME="${JENKINS_HOME:-$HOME/.jenkins}"
JENKINS_JOB="goldenChart-Pipeline"
STAMP="$(date +%Y%m%d-%H%M%S)"
BACKUP_ROOT="/Volumes/ADATA/backup/goldenChart-rebuild-${STAMP}"

log() { echo "[rebuild $(date '+%H:%M:%S')] $*"; }

log "백업 디렉터리: $BACKUP_ROOT"
mkdir -p "$BACKUP_ROOT" "$(dirname "$DEPLOY_LOG")" /Volumes/ADATA/logs/deploy/push-summaries

# ── 1. Jenkins Job 제거 (데이터는 유지, job만 초기화) ─────────────────────
log "Jenkins job 제거: $JENKINS_JOB"
rm -rf "${JENKINS_HOME}/jobs/${JENKINS_JOB}"
rm -f  "${JENKINS_HOME}/jobs/${JENKINS_JOB}.xml" 2>/dev/null || true

# ── 2. work-tree 백업 (.env·데이터 보존) ───────────────────────────────────
if [ -d "$WORK_TREE" ]; then
  log "work-tree 백업 → $BACKUP_ROOT/work-tree-snapshot"
  mkdir -p "$BACKUP_ROOT/work-tree-snapshot"
  [ -f "$WORK_TREE/.env" ] && cp -a "$WORK_TREE/.env" "$BACKUP_ROOT/.env"
  # embedded .git 제거 대상 — 백업만
  if [ -d "$WORK_TREE/.git" ]; then
    log "work-tree 내 중첩 .git 백업 (배포 혼선 원인)"
    cp -a "$WORK_TREE/.git" "$BACKUP_ROOT/work-tree-snapshot/dot-git-nested"
  fi
fi

# ── 3. bare 저장소 제거 후 재생성 ───────────────────────────────────────────
if [ -d "$GIT_DIR" ]; then
  log "bare 저장소 백업 → $BACKUP_ROOT/goldenChart.git.tgz"
  tar -czf "$BACKUP_ROOT/goldenChart.git.tgz" -C "$(dirname "$GIT_DIR")" "$(basename "$GIT_DIR")" 2>/dev/null || true
  log "bare 저장소 제거: $GIT_DIR"
  rm -rf "$GIT_DIR"
fi

log "bare 저장소 초기화"
git init --bare "$GIT_DIR"
git --git-dir="$GIT_DIR" symbolic-ref HEAD refs/heads/main

# ── 4. 레거시 work-tree 제거·단일 경로 고정 ─────────────────────────────────
LEGACY_WORK_TREE="/Users/aidev/dev/goldenChart"
if [ -e "$LEGACY_WORK_TREE" ] || [ -L "$LEGACY_WORK_TREE" ]; then
  log "레거시 경로 백업·이동: $LEGACY_WORK_TREE"
  if [ -d "$LEGACY_WORK_TREE" ] && [ ! -L "$LEGACY_WORK_TREE" ]; then
    tar -czf "$BACKUP_ROOT/legacy-dev-goldenChart.tgz" -C "$(dirname "$LEGACY_WORK_TREE")" "$(basename "$LEGACY_WORK_TREE")" 2>/dev/null || true
    mv "$LEGACY_WORK_TREE" "$BACKUP_ROOT/legacy-dev-goldenChart-dir" 2>/dev/null || true
  else
    rm -f "$LEGACY_WORK_TREE" 2>/dev/null || true
  fi
fi
ln -sfn "$WORK_TREE" "$LEGACY_WORK_TREE"
log "  → $LEGACY_WORK_TREE → $WORK_TREE (심볼릭 링크)"

# ── 5. work-tree 정리 (중첩 .git 제거, 소스만 비움) ───────────────────────
log "work-tree 정리: $WORK_TREE"
mkdir -p "$WORK_TREE"
if [ -d "$WORK_TREE/.git" ]; then
  rm -rf "$WORK_TREE/.git"
  log "  → 중첩 .git 제거 완료"
fi
# 소스 파일만 삭제 (.env·data·docker 볼륨 경로 유지)
find "$WORK_TREE" -mindepth 1 -maxdepth 1 \
  ! -name '.env' \
  ! -name '.env.*' \
  ! -name 'data' \
  -exec rm -rf {} + 2>/dev/null || true

[ -f "$BACKUP_ROOT/.env" ] && cp -a "$BACKUP_ROOT/.env" "$WORK_TREE/.env" && log "  → .env 복원"

# ── 6. deploy.sh · post-receive 설치 ───────────────────────────────────────
log "deploy.sh 설치"
cp -f "$REPO_ROOT/scripts/deploy.sh" "$DEPLOY_SCRIPT"
chmod +x "$DEPLOY_SCRIPT"

log "post-receive 훅 설치"
cp -f "$REPO_ROOT/scripts/post-receive" "$GIT_DIR/hooks/post-receive"
chmod +x "$GIT_DIR/hooks/post-receive"

if [ -x /Volumes/ADATA/git/git-push-summary.sh ]; then
  log "git-push-summary.sh 유지"
else
  log "[WARN] /Volumes/ADATA/git/git-push-summary.sh 없음 — push 요약 생략"
fi

# ── 7. Jenkins Job 재생성 ──────────────────────────────────────────────────
log "Jenkins job 생성: $JENKINS_JOB"
mkdir -p "${JENKINS_HOME}/jobs/${JENKINS_JOB}"
cat > "${JENKINS_HOME}/jobs/${JENKINS_JOB}/config.xml" << 'JENKINS_XML'
<?xml version='1.1' encoding='UTF-8'?>
<project>
  <description>GoldenChart — Track B (deploy.sh, file:// bare repo)</description>
  <keepDependencies>false</keepDependencies>
  <properties/>
  <scm class="hudson.plugins.git.GitSCM" plugin="git@5.0.0">
    <configVersion>2</configVersion>
    <userRemoteConfigs>
      <hudson.plugins.git.UserRemoteConfig>
        <url>file:///Volumes/ADATA/git/goldenChart.git</url>
      </hudson.plugins.git.UserRemoteConfig>
    </userRemoteConfigs>
    <branches>
      <hudson.plugins.git.BranchSpec>
        <name>*/main</name>
      </hudson.plugins.git.BranchSpec>
    </branches>
    <doGenerateSubmoduleConfigurations>false</doGenerateSubmoduleConfigurations>
    <submoduleCfg class="empty-list"/>
    <extensions/>
  </scm>
  <canRoam>true</canRoam>
  <disabled>false</disabled>
  <blockBuildWhenDownstreamBuilding>false</blockBuildWhenDownstreamBuilding>
  <blockBuildWhenUpstreamBuilding>false</blockBuildWhenUpstreamBuilding>
  <triggers/>
  <concurrentBuild>false</concurrentBuild>
  <builders>
    <hudson.tasks.Shell>
      <command>#!/bin/bash
set -euo pipefail
export PATH="/opt/homebrew/bin:/opt/homebrew/sbin:/usr/local/bin:$PATH"
echo "=== goldenChart Jenkins Build #${BUILD_NUMBER} ==="
echo "시각: $(date)"
SERVICE_NAME="${SERVICE_NAME:-all}" /Volumes/ADATA/git/deploy.sh
</command>
    </hudson.tasks.Shell>
  </builders>
  <publishers/>
  <buildWrappers/>
</project>
JENKINS_XML

# Jenkins 설정 리로드 (실패해도 job 파일은 생성됨)
if command -v jenkins-cli >/dev/null 2>&1; then
  jenkins-cli reload-configuration 2>/dev/null || true
fi
if curl -sf -o /dev/null "http://127.0.0.1:8090/login" 2>/dev/null; then
  curl -sf -X POST "http://127.0.0.1:8090/reload" 2>/dev/null || true
fi

rm -f /tmp/goldenchart_deploy.lock 2>/dev/null || true

log "============================================================"
log "서버 Git/Jenkins 재구축 완료 (소스는 아직 비어 있음)"
log "  GIT_DIR   : $GIT_DIR"
log "  WORK_TREE : $WORK_TREE (중첩 .git 없음)"
log "  Jenkins   : $JENKINS_JOB → file://$GIT_DIR"
log ""
log "다음: 로컬에서 실행"
log "  cd <goldenChart> && git push origin main"
log "============================================================"