// 格式化日期
const formatDate = (date, format = "YYYY-MM-DD HH:mm") => {
  if (!date) return "";
  const d = new Date(date);
  const year = d.getFullYear();
  const month = String(d.getMonth() + 1).padStart(2, "0");
  const day = String(d.getDate()).padStart(2, "0");
  const hour = String(d.getHours()).padStart(2, "0");
  const minute = String(d.getMinutes()).padStart(2, "0");
  const second = String(d.getSeconds()).padStart(2, "0");

  return format
    .replace("YYYY", year)
    .replace("MM", month)
    .replace("DD", day)
    .replace("HH", hour)
    .replace("mm", minute)
    .replace("ss", second);
};

// 等级名称
const levelNames = {
  1: "新锐",
  2: "精锐",
  3: "高手",
  4: "大师",
  5: "宗师",
};

const getLevelName = (level) => levelNames[level] || "未知";

// 等级描述
const levelDescs = {
  1: "掌握基础动作，能进行多拍回合。",
  2: "技术较全面，具备初步的战术意识。",
  3: "技术稳定，战术意图清晰，比赛经验丰富。",
  4: "在英飒俱乐部内属顶尖战力，具备较强掌控力。",
  5: "技术全面，战术素养高，是英飒俱乐部标杆。",
};

const getLevelDesc = (level) => levelDescs[level] || "";

// 比赛状态
const matchStatusTexts = {
  0: "待开始",
  1: "进行中",
  2: "已结束",
  3: "已取消",
};

const getMatchStatusText = (status) => matchStatusTexts[status] || "未知";

// 订单状态
const orderStatusTexts = {
  0: "待核销",
  1: "已完成",
  2: "已取消",
};

const getOrderStatusText = (status) => orderStatusTexts[status] || "未知";

// 生成随机字符串
const randomString = (len = 16) => {
  const chars =
    "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
  let result = "";
  for (let i = 0; i < len; i++) {
    result += chars.charAt(Math.floor(Math.random() * chars.length));
  }
  return result;
};

module.exports = {
  formatDate,
  getLevelName,
  getLevelDesc,
  getMatchStatusText,
  getOrderStatusText,
  randomString,
};