// Firebase配置
const firebaseConfig = {
  apiKey: "YOUR_API_KEY",
  authDomain: "YOUR_PROJECT.firebaseapp.com",
  databaseURL: "https://YOUR_PROJECT.firebaseio.com",
  projectId: "YOUR_PROJECT",
  storageBucket: "YOUR_PROJECT.appspot.com",
  messagingSenderId: "YOUR_SENDER_ID",
  appId: "YOUR_APP_ID"
};

// 初始化Firebase
firebase.initializeApp(firebaseConfig);

// 使用AJAX发送POST请求
function postDataToFirebase() {
  const url = firebaseConfig.databaseURL + '/data.json'; // 'data'是你要写入的路径
  const data = {
    name: "John Doe",
    email: "john@example.com",
    createdAt: new Date().toISOString()
  };

  const xhr = new XMLHttpRequest();
  xhr.open('POST', url, true);
  xhr.setRequestHeader('Content-Type', 'application/json');
  
  xhr.onreadystatechange = function() {
    if (xhr.readyState === 4) {
      if (xhr.status === 200) {
        console.log('数据成功写入:', xhr.responseText);
      } else {
        console.error('写入失败:', xhr.statusText);
      }
    }
  };
  
  xhr.send(JSON.stringify(data));
}

// 获取Firebase数据库引用
const database = firebase.database();
const ref = database.ref('data');

// 使用AJAX POST请求
function postWithAJAX() {
  const url = 'https://YOUR_PROJECT.firebaseio.com/data.json';
  const authToken = firebase.auth().currentUser ? 
    firebase.auth().currentUser.getIdToken() : 
    null;

  fetch(url, {
    method: 'POST',
    headers: {
      'Content-Type': 'application/json',
      ...(authToken && { 'Authorization': `Bearer ${authToken}` })
    },
    body: JSON.stringify({
      name: "Jane Smith",
      email: "jane@example.com"
    })
  })
  .then(response => response.json())
  .then(data => console.log('成功:', data))
  .catch(error => console.error('错误:', error));
}