#!/usr/bin/env bash
# 로컬 monorepo + GitHub submodule 포인터 → Gitea push (post-receive 배포 트리거)
#
#   ./server-dev/push-to-gitea.sh
#   ./server-dev/push-to-gitea.sh --dry-run
set -euo pipefail

ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
GIT_BRANCH="${GIT_BRANCH:-main}"
GITEA_REMOTE="${GITEA_REMOTE:-origin}"
DRY_RUN=false

for arg in "$@"; do
  case "$arg" in
    --dry-run) DRY_RUN=true ;;
    -h|--help)
      sed -n '2,6p' "$0"
      exit 0
      ;;
    *)
      echo "알 수 없는 옵션: $arg (--help)"
      exit 1
      ;;
  esac
done

log()  { echo "[push-to-gitea] $*"; }
warn() { echo "[push-to-gitea] ⚠️  $*" >&2; }
fail() { log "ERROR: $*"; exit 1; }

cd "${ROOT_DIR}"

[[ -d .git ]] || fail "Git 저장소 아님: ${ROOT_DIR}"

if [[ ! -f .gitmodules ]]; then
  fail ".gitmodules 없음 — submodule 설정 후 다시 실행"
fi

if [[ -x "${ROOT_DIR}/git_fetch_all.sh" ]]; then
  log "GitHub submodule 동기화..."
  if ! $DRY_RUN; then
    "${ROOT_DIR}/git_fetch_all.sh"
  else
    "${ROOT_DIR}/git_fetch_all.sh" --dry-run
  fi
else
  warn "git_fetch_all.sh 없음 — submodule GitHub 동기화 생략"
fi

# 서버 env.template·overlay와 중복되는 submodule 작업트리 변경은 되돌림
reset_submodule_noise() {
  local path="$1"
  shift
  [[ -d "${ROOT_DIR}/${path}/.git" ]] || return 0
  local f
  for f in "$@"; do
    if git -C "${ROOT_DIR}/${path}" diff --quiet -- "$f" 2>/dev/null; then
      continue
    fi
    if $DRY_RUN; then
      log "[dry-run] ${path} — 되돌림: $f"
    else
      git -C "${ROOT_DIR}/${path}" checkout -- "$f" 2>/dev/null || true
    fi
  done
}

reset_submodule_noise "exAiChatBot-chatbot2.0-agent" \
  create-offline-package-slim.sh docker-compose-slim.yml \
  env.example env.template scripts/vector_store.py
reset_submodule_noise "chatbotApi-chatbot2.0-agent" gradlew
reset_submodule_noise "kakaoChatbotSkill-chatbot2.0-agent" gradlew

if $DRY_RUN; then
  log "[dry-run] git add / commit / push 생략"
  git status -sb
  git submodule status || true
  exit 0
fi

chmod +x git_fetch_all.sh server-dev/*.sh 2>/dev/null || true
chmod +x chatbotApp-chatbot2.0-agent/build.sh 2>/dev/null || true

git add .gitmodules
git add local-dev/ server-dev/ scripts/ git_fetch_all.sh 2>/dev/null || true
git add start-all-server.sh stop-all-server.sh 2>/dev/null || true

for path in chatbotApp-chatbot2.0-agent chatbotApi-chatbot2.0-agent \
            exAiChatBot-chatbot2.0-agent kakaoChatbotSkill-chatbot2.0-agent; do
  [[ -d "${path}" ]] && git add "${path}" 2>/dev/null || true
done

# embedded → submodule 전환 잔여 삭제 반영
git add -u

if ! git diff --cached --quiet; then
  msg="Deploy: GitHub submodule sync $(date '+%Y-%m-%d %H:%M:%S')"
  log "monorepo 커밋: ${msg}"
  git commit -m "${msg}"
else
  log "monorepo 스테이징 변경 없음"
fi

git fetch "${GITEA_REMOTE}" "${GIT_BRANCH}" 2>/dev/null || true
local_rev="$(git rev-parse HEAD)"
remote_rev=""
if git rev-parse "${GITEA_REMOTE}/${GIT_BRANCH}" >/dev/null 2>&1; then
  remote_rev="$(git rev-parse "${GITEA_REMOTE}/${GIT_BRANCH}")"
fi

if [[ -n "${remote_rev}" && "${local_rev}" == "${remote_rev}" ]]; then
  log "✅ Gitea 이미 최신 (${local_rev:0:7})"
  exit 0
fi

log "Gitea push ${GITEA_REMOTE} ${GIT_BRANCH} (${local_rev:0:7})..."
git push "${GITEA_REMOTE}" "${GIT_BRANCH}"
log "✅ Gitea push 완료 — post-receive 배포 트리거됨"