const { get, post, clearSession } = require("./api");

function getStoredUser() {
  return wx.getStorageSync("auth_user") || null;
}

function saveSession(token, user) {
  wx.setStorageSync("auth_token", token);
  wx.setStorageSync("auth_user", user);
  const app = getApp();
  if (app && app.setUser) app.setUser(user);
}

function requireLogin() {
  if (!wx.getStorageSync("auth_token")) {
    wx.navigateTo({ url: "/pages/bind/index" });
    return false;
  }
  return true;
}

async function refreshMe() {
  const user = await get("/api/auth/me");
  wx.setStorageSync("auth_user", user);
  const app = getApp();
  if (app && app.setUser) app.setUser(user);
  return user;
}

function loginWithWeChat() {
  return new Promise((resolve, reject) => {
    wx.login({
      success: async ({ code }) => {
        try {
          resolve(await post("/api/wechat/login", { code }));
        } catch (error) {
          reject(error);
        }
      },
      fail: () => reject(new Error("微信登录失败"))
    });
  });
}

module.exports = {
  clearSession,
  getStoredUser,
  loginWithWeChat,
  refreshMe,
  requireLogin,
  saveSession
};