(function () {
  'use strict';

  var TOKEN_KEY = 'soon_access';

  function getV1Base() {
    var cfg = window.SOON_DEPLOY_CONFIG || {};
    return (cfg.api_v1_base || '/api/v1').replace(/\/+$/, '');
  }

  function redirectTarget() {
    var p = new URLSearchParams(location.search);
    var r = p.get('redirect');
    if (r && typeof soonSafeRedirect === 'function') {
      return soonSafeRedirect(r, 'index.html');
    }
    return r || 'index.html';
  }

  function clearTokens() {
    try {
      localStorage.removeItem(TOKEN_KEY);
      localStorage.removeItem('soon_refresh');
    } catch (e) { /* ignore */ }
  }

  function showError(msg) {
    var err = document.getElementById('loginError');
    if (err) {
      err.textContent = msg;
      err.style.display = 'block';
    }
  }

  async function verifyAdmin(token) {
    var r = await fetch(getV1Base() + '/auth/me', {
      headers: { Authorization: 'Bearer ' + token },
    });
    var j = await r.json();
    if (!j.ok || !j.data || j.data.role !== 'admin') return null;
    return j.data;
  }

  function init() {
    if (localStorage.getItem(TOKEN_KEY)) {
      verifyAdmin(localStorage.getItem(TOKEN_KEY)).then(function (me) {
        if (me) location.href = redirectTarget();
      });
    }

    var pwdToggle = document.getElementById('pwdToggle');
    if (pwdToggle) {
      pwdToggle.onclick = function () {
        var p = document.getElementById('password');
        var show = p.type === 'password';
        p.type = show ? 'text' : 'password';
        this.textContent = show ? '隐藏' : '显示';
      };
    }

    var form = document.getElementById('loginForm');
    if (!form) return;

    form.onsubmit = function (e) {
      e.preventDefault();
      var err = document.getElementById('loginError');
      if (err) { err.style.display = 'none'; err.textContent = ''; }

      var email = document.getElementById('email').value.trim();
      var password = document.getElementById('password').value;

      fetch(getV1Base() + '/auth/login', {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({ email: email, password: password }),
      }).then(function (r) { return r.json(); }).then(function (j) {
        if (!j.ok) {
          showError(j.message || '登录失败');
          return;
        }
        localStorage.setItem(TOKEN_KEY, j.data.access_token);
        localStorage.setItem('soon_refresh', j.data.refresh_token);
        return verifyAdmin(j.data.access_token);
      }).then(function (me) {
        if (me === undefined) return;
        if (!me) {
          clearTokens();
          showError('无管理员权限，请使用管理员账号登录');
          soonToast('无管理员权限', 'warn');
          return;
        }
        location.href = redirectTarget();
      }).catch(function () {
        showError('网络错误，请稍后重试');
      });
    };
  }

  function boot() {
    if (document.readyState === 'loading') {
      document.addEventListener('DOMContentLoaded', init);
    } else {
      init();
    }
  }

  if (typeof layui !== 'undefined') {
    layui.use(['layer'], function () {
      window.layer = layui.layer;
      layer.config({ skin: 'soon-layer' });
      boot();
    });
  } else {
    boot();
  }
})();