#!/usr/bin/env bash
# 与 Gitea（192.168.1.201）双向同步：先拉取，有本地变更则提交并推送
# 可手动执行，也可由 launchd 每 10 分钟执行

set -e
REPO_ROOT="$(cd "$(dirname "$0")/../.." && pwd)"
REMOTE="gitea"
LOG_FILE="$REPO_ROOT/.cursor/scripts/gitea-sync.log"

cd "$REPO_ROOT"
BRANCH=$(git rev-parse --abbrev-ref HEAD)

log() { echo "[$(date '+%Y-%m-%d %H:%M:%S')] $*" | tee -a "$LOG_FILE"; }

log "--- sync start (branch=$BRANCH, remote=$REMOTE) ---"

# 1. 拉取远程更新（若有未提交变更则先 stash，pull 后再 pop）
STASHED=""
if [ -n "$(git status -s)" ]; then
  git stash push -u -m "gitea-sync $(date +%s)" 2>/dev/null && STASHED=1 || true
fi
git fetch "$REMOTE" 2>&1 | tee -a "$LOG_FILE" || true
if git ls-remote --exit-code --heads "$REMOTE" "$BRANCH" &>/dev/null; then
  git pull "$REMOTE" "$BRANCH" --no-edit 2>&1 | tee -a "$LOG_FILE" || log "pull 失败或冲突，继续尝试推送本地变更"
fi
[ -n "$STASHED" ] && git stash pop 2>/dev/null || true

# 2. 若有本地未提交变更，则提交并推送
STATUS=$(git status -s)
if [ -n "$STATUS" ]; then
  git add -A
  git commit -m "sync: $(date '+%Y-%m-%d %H:%M')" 2>&1 | tee -a "$LOG_FILE" || log "commit failed (nothing to commit or conflict)"
  git push "$REMOTE" "$BRANCH" 2>&1 | tee -a "$LOG_FILE" || log "push failed"
else
  # 若有已提交但未推送的提交，也推送（仅当远程有此分支且本地比远程多提交时）
  if git ls-remote --exit-code --heads "$REMOTE" "$BRANCH" &>/dev/null; then
    AHEAD=$(git rev-list "refs/remotes/${REMOTE}/${BRANCH}"..HEAD --count 2>/dev/null || echo 0)
    if [ "${AHEAD:-0}" -gt 0 ]; then
      git push "$REMOTE" "$BRANCH" 2>&1 | tee -a "$LOG_FILE" || log "push failed"
    fi
  else
    git push -u "$REMOTE" "$BRANCH" 2>&1 | tee -a "$LOG_FILE" || log "push (new branch) failed"
  fi
fi

log "--- sync end ---"