// 使用相对路径，自动适配当前域名
const API_BASE = "/api";

// 检查是否已登录
window.onload = () => {
    const token = localStorage.getItem("auth_token");
    if (token) {
        // 验证token是否有效
        verifyToken(token);
    }
};

// 验证token
async function verifyToken(token) {
    try {
        const response = await fetch(`${API_BASE}/login`, {
            method: "POST",
            headers: {
                "Content-Type": "application/json"
            },
            body: JSON.stringify({ token: token })
        });

        const result = await response.json();
        if (result.code === 0) {
            // token有效，跳转到管理页面
            window.location.href = "/web/index.html";
        } else {
            // token无效，清除本地存储
            localStorage.removeItem("auth_token");
        }
    } catch (error) {
        // 网络错误，清除本地存储
        localStorage.removeItem("auth_token");
    }
}

// 处理登录
async function handleLogin(event) {
    event.preventDefault();

    const tokenInput = document.getElementById("token");
    const token = tokenInput.value.trim();
    const loginBtn = document.getElementById("login-btn");
    const loading = document.getElementById("loading");
    const errorMsg = document.getElementById("error-message");

    if (!token) {
        showError("请输入 Token");
        return;
    }

    // 显示加载状态
    loginBtn.disabled = true;
    loading.classList.add("show");
    errorMsg.classList.remove("show");

    try {
        const response = await fetch(`${API_BASE}/login`, {
            method: "POST",
            headers: {
                "Content-Type": "application/json"
            },
            body: JSON.stringify({ token: token })
        });

        const result = await response.json();

        if (result.code === 0) {
            // 登录成功，保存token
            localStorage.setItem("auth_token", token);
            // 跳转到管理页面
            window.location.href = "/web/index.html";
        } else {
            showError(result.msg || "登录失败");
        }
    } catch (error) {
        showError("网络错误: " + error.message);
    } finally {
        loginBtn.disabled = false;
        loading.classList.remove("show");
    }
}

// 显示错误信息
function showError(message) {
    const errorMsg = document.getElementById("error-message");
    errorMsg.textContent = message;
    errorMsg.classList.add("show");
}