#!/usr/bin/env bash
set -euo pipefail

REMOTE="${1:-root@43.165.195.39}"
REMOTE_DIR="${REMOTE_DIR:-/opt/chatapp-test}"
MONITOR_REPO_URL="${MONITOR_REPO_URL:-git@gitea.haiyihy.com:hy/hy-app-monitor.git}"
MONITOR_BRANCH="${MONITOR_BRANCH:-main}"
MONITOR_CHECKOUT_DIR="${MONITOR_CHECKOUT_DIR:-$REMOTE_DIR/git/hy-app-monitor}"

ssh "$REMOTE" \
  "REMOTE_DIR='$REMOTE_DIR' MONITOR_REPO_URL='$MONITOR_REPO_URL' MONITOR_BRANCH='$MONITOR_BRANCH' MONITOR_CHECKOUT_DIR='$MONITOR_CHECKOUT_DIR' bash -s" <<'REMOTE_BOOTSTRAP'
set -euo pipefail

REMOTE_DIR="${REMOTE_DIR:-/opt/chatapp-test}"
MONITOR_REPO_URL="${MONITOR_REPO_URL:-git@gitea.haiyihy.com:hy/hy-app-monitor.git}"
MONITOR_BRANCH="${MONITOR_BRANCH:-main}"
MONITOR_CHECKOUT_DIR="${MONITOR_CHECKOUT_DIR:-$REMOTE_DIR/git/hy-app-monitor}"
export GIT_SSH_COMMAND="${GIT_SSH_COMMAND:-ssh -o StrictHostKeyChecking=accept-new}"

install_minimal_packages() {
  if command -v git >/dev/null 2>&1 && command -v rsync >/dev/null 2>&1; then
    return
  fi

  if command -v dnf >/dev/null 2>&1; then
    dnf -y install git rsync ca-certificates >/dev/null
  elif command -v apt-get >/dev/null 2>&1; then
    apt-get update >/dev/null
    apt-get install -y git rsync ca-certificates >/dev/null
  else
    echo "unsupported Linux distribution: missing dnf/apt-get" >&2
    exit 1
  fi
}

sync_repo() {
  local dir="$1"
  local url="$2"
  local branch="$3"
  local stamp

  mkdir -p "$(dirname "$dir")"

  if [ -e "$dir" ] && [ ! -d "$dir/.git" ]; then
    stamp="$(date +%Y%m%d%H%M%S)"
    mv "$dir" "$dir.pre-git-$stamp"
    echo "moved non-git directory to $dir.pre-git-$stamp"
  fi

  if [ ! -d "$dir/.git" ]; then
    git clone --branch "$branch" "$url" "$dir"
  fi

  git -C "$dir" remote set-url origin "$url"
  git -C "$dir" fetch --prune origin "$branch"
  git -C "$dir" checkout -B "$branch" "origin/$branch"
  git -C "$dir" reset --hard "origin/$branch"
}

install_minimal_packages
sync_repo "$MONITOR_CHECKOUT_DIR" "$MONITOR_REPO_URL" "$MONITOR_BRANCH"

exec bash "$MONITOR_CHECKOUT_DIR/testbox/scripts/deploy-from-git-remote.sh"
REMOTE_BOOTSTRAP