#!/usr/bin/env bash
# 比特骆驼行情采集分析 部署管理器（工程 market_intel）
# 部署环境: Ubuntu 22.04 LTS · Docker Compose
#
# 新服务器(免克隆):
#   curl -fsSL https://git.bz121.com/dekun/market_intel/raw/branch/main/deploy/manage.sh | bash
#
# 已安装:
#   bash /opt/market_intel/deploy/manage.sh
#
set -e
if [ -n "${BASH_VERSION:-}" ]; then
  set -o pipefail
fi

INSTALL_ROOT="${INSTALL_ROOT:-/opt/market_intel}"
GIT_URL="${GIT_URL:-https://git.bz121.com/dekun/market_intel.git}"
GIT_BRANCH="${GIT_BRANCH:-main}"

_script_src="${BASH_SOURCE[0]:-}"
if [[ -n "${_script_src}" && -f "${_script_src}" ]]; then
  DEPLOY_DIR="$(cd "$(dirname "${_script_src}")" && pwd)"
  REPO_ROOT="$(cd "${DEPLOY_DIR}/.." && pwd)"
  LIB_DIR="${DEPLOY_DIR}/lib"
else
  DEPLOY_DIR=""
  REPO_ROOT=""
  LIB_DIR=""
fi
unset _script_src

set -u

repo_ready() {
  [[ -f "${1}/deploy/manage.sh" && -f "${1}/docker-compose.yml" && -d "${1}/deploy/lib" ]]
}

ensure_git_cli() {
  if command -v git >/dev/null 2>&1; then
    return 0
  fi
  if command -v apt-get >/dev/null 2>&1; then
    export DEBIAN_FRONTEND=noninteractive
    local waited=0
    while pgrep -x unattended-upgr >/dev/null 2>&1 \
      || pgrep -x apt-get >/dev/null 2>&1 \
      || pgrep -x apt >/dev/null 2>&1 \
      || pgrep -x dpkg >/dev/null 2>&1 \
      || { command -v fuser >/dev/null 2>&1 && fuser /var/lib/dpkg/lock-frontend >/dev/null 2>&1; }; do
      if [[ "${waited}" -eq 0 ]]; then
        echo "等待 apt 锁释放（unattended-upgrades）…"
      fi
      if [[ "${waited}" -ge 600 ]]; then
        echo "错误: 等待 apt 锁超时，请稍后再试" >&2
        exit 1
      fi
      sleep 5
      waited=$((waited + 5))
    done
    apt-get update -qq
    apt-get install -y git ca-certificates curl
  else
    echo "错误: 未找到 git" >&2
    exit 1
  fi
}

sync_repo_if_present() {
  local root="$1"
  if [[ -d "${root}/.git" ]] && command -v git >/dev/null 2>&1; then
    git -C "${root}" fetch --all --prune 2>/dev/null || true
    git -C "${root}" checkout "${GIT_BRANCH}" 2>/dev/null || true
    git -C "${root}" pull --ff-only origin "${GIT_BRANCH}" 2>/dev/null \
      || git -C "${root}" pull --ff-only 2>/dev/null \
      || true
  fi
}

heal_existing_install() {
  local root="$1"
  echo "检测到已有目录但缺少管理脚本: ${root}"
  echo "尝试同步最新代码…"
  ensure_git_cli

  if [[ -d "${root}/.git" ]]; then
    sync_repo_if_present "${root}"
    if repo_ready "${root}"; then
      echo "同步成功，切换到仓库内 manage.sh"
      exec bash "${root}/deploy/manage.sh" "$@" </dev/tty
    fi
    echo "git pull 后仍不完整，尝试强制对齐 origin/${GIT_BRANCH} …"
    git -C "${root}" fetch origin "${GIT_BRANCH}" || true
    git -C "${root}" reset --hard "origin/${GIT_BRANCH}" || true
    if repo_ready "${root}"; then
      echo "对齐成功，切换到仓库内 manage.sh"
      exec bash "${root}/deploy/manage.sh" "$@" </dev/tty
    fi
  fi

  echo "将备份配置并重新克隆到 ${root}"
  local stamp backup_dir
  stamp="$(date +%Y%m%d-%H%M%S)"
  backup_dir="/root/backups/market_intel/heal-${stamp}"
  mkdir -p "${backup_dir}"
  [[ -f "${root}/.env" ]] && cp -a "${root}/.env" "${backup_dir}/.env"
  echo "备份目录: ${backup_dir}"

  local removed="${root}.old.${stamp}"
  mv "${root}" "${removed}"
  echo "旧目录已移至: ${removed}"
  mkdir -p "$(dirname "${root}")"
  git clone -b "${GIT_BRANCH}" "${GIT_URL}" "${root}"
  if [[ -f "${backup_dir}/.env" ]]; then
    cp -a "${backup_dir}/.env" "${root}/.env"
    echo "已恢复 .env"
  fi
  exec bash "${root}/deploy/manage.sh" "$@" </dev/tty
}

bootstrap_repo() {
  if repo_ready "${INSTALL_ROOT}"; then
    REPO_ROOT="${INSTALL_ROOT}"
    DEPLOY_DIR="${REPO_ROOT}/deploy"
    LIB_DIR="${DEPLOY_DIR}/lib"
    sync_repo_if_present "${REPO_ROOT}"
    if ! repo_ready "${REPO_ROOT}"; then
      heal_existing_install "${INSTALL_ROOT}" "$@"
    fi
    return 0
  fi
  if [[ -n "${REPO_ROOT}" ]] && repo_ready "${REPO_ROOT}"; then
    DEPLOY_DIR="${REPO_ROOT}/deploy"
    LIB_DIR="${DEPLOY_DIR}/lib"
    return 0
  fi

  if [[ -d "${INSTALL_ROOT}" ]]; then
    if [[ "$(id -u)" -ne 0 ]]; then
      echo "错误: 请使用 root 执行" >&2
      exit 1
    fi
    heal_existing_install "${INSTALL_ROOT}" "$@"
  fi

  echo "比特骆驼行情采集分析 部署管理器 — 首次自举"
  echo "将克隆到: ${INSTALL_ROOT}"
  if [[ "$(id -u)" -ne 0 ]]; then
    echo "错误: 请使用 root 执行" >&2
    exit 1
  fi
  ensure_git_cli
  mkdir -p "$(dirname "${INSTALL_ROOT}")"
  git clone -b "${GIT_BRANCH}" "${GIT_URL}" "${INSTALL_ROOT}"
  exec bash "${INSTALL_ROOT}/deploy/manage.sh" "$@" </dev/tty
}

show_banner() {
  local path
  path="${INSTALL_ROOT}"
  if [[ -n "${REPO_ROOT}" ]] && repo_ready "${REPO_ROOT}"; then
    path="${REPO_ROOT}"
  fi
  echo ""
  echo "╔══════════════════════════════════════╗"
  echo "║  比特骆驼行情采集分析 部署管理器      ║"
  echo "║  路径: ${path}"
  echo "╚══════════════════════════════════════╝"
  echo ""
}

show_menu() {
  echo "  1) 一键部署"
  echo "  2) 更新"
  echo "  3) 停止"
  echo "  4) 启动"
  echo "  5) 查看状态"
  echo "  6) 一键卸载"
  echo "  0) 退出"
  echo ""
}

cm_read() {
  local __var="$1"
  local __prompt="${2:-}"
  local __line=""
  if [[ -n "${__prompt}" ]]; then
    printf '%s' "${__prompt}" >/dev/tty 2>/dev/null || printf '%s' "${__prompt}"
  fi
  if [[ -r /dev/tty ]]; then
    IFS= read -r __line </dev/tty || true
  else
    IFS= read -r __line || true
  fi
  printf -v "${__var}" '%s' "${__line}"
}

main_menu() {
  bootstrap_repo
  # shellcheck source=lib/common.sh
  source "${LIB_DIR}/common.sh"
  REPO_ROOT="$(resolve_repo_root || echo "${INSTALL_ROOT}")"

  while true; do
    show_banner
    show_menu
    local choice=""
    cm_read choice "请选择 [0-6]: "
    case "${choice}" in
      1) bash "${LIB_DIR}/install.sh" ;;
      2) bash "${LIB_DIR}/update.sh" ;;
      3) compose_stop ;;
      4) compose_start ;;
      5) show_status ;;
      6) bash "${LIB_DIR}/uninstall.sh" ;;
      0)
        echo "再见."
        exit 0
        ;;
      *)
        echo "无效选项,请输入 0-6"
        ;;
    esac
    echo ""
    cm_read _ "按 Enter 返回菜单..."
  done
}

main_menu "$@"