/**
 * URL处理工具
 * 用于生成授权URL、解析URL参数等功能
 */
/**
 * 生成随机字符串
 * @param length 字符串长度，默认32位
 * @returns 随机字符串
 */
export function generateRandomString(length = 32) {
    const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
    let result = '';
    for (let i = 0; i < length; i++) {
        result += chars.charAt(Math.floor(Math.random() * chars.length));
    }
    return result;
}
/**
 * 解析URL查询参数
 * @param url URL字符串，默认为当前URL
 * @returns 查询参数对象
 */
export function parseQueryParams(url = window.location.href) {
    const params = {};
    const queryString = url.split('?')[1];
    if (!queryString) {
        return params;
    }
    const pairs = queryString.split('&');
    for (const pair of pairs) {
        const [key, value] = pair.split('=');
        if (key) {
            params[decodeURIComponent(key)] = decodeURIComponent(value || '');
        }
    }
    return params;
}
/**
 * 构建URL查询参数
 * @param params 查询参数对象
 * @returns 查询参数字符串
 */
export function buildQueryParams(params) {
    const pairs = [];
    for (const [key, value] of Object.entries(params)) {
        if (value !== undefined && value !== null) {
            pairs.push(`${encodeURIComponent(key)}=${encodeURIComponent(value)}`);
        }
    }
    return pairs.length ? `?${pairs.join('&')}` : '';
}
/**
 * 生成OAuth2授权URL
 * @param authorizationEndpoint 授权端点URL
 * @param clientId 客户端ID
 * @param redirectUri 重定向URL
 * @param options 可选参数
 * @returns 授权URL
 */
export function generateAuthorizationUrl(authorizationEndpoint, clientId, redirectUri, options) {
    const { responseType = 'code', scope, state = generateRandomString(32), ...extraParams } = options || {};
    const params = {
        client_id: clientId,
        redirect_uri: redirectUri,
        response_type: responseType,
        state,
        ...(scope ? { scope } : {}),
        ...extraParams
    };
    const queryString = buildQueryParams(params);
    return `${authorizationEndpoint}${queryString}`;
}
/**
 * 检查当前URL是否为授权回调
 * @param url URL字符串，默认为当前URL
 * @returns 是否为授权回调
 */
export function isCallbackUrl(url = window.location.href) {
    const params = parseQueryParams(url);
    return !!params.code || !!params.error;
}
/**
 * 获取当前URL的路径名
 * @param url URL字符串，默认为当前URL
 * @returns 路径名
 */
export function getPathname(url = window.location.href) {
    const urlObj = new URL(url);
    return urlObj.pathname;
}
/**
 * 获取当前URL的主机名
 * @param url URL字符串，默认为当前URL
 * @returns 主机名
 */
export function getHostname(url = window.location.href) {
    const urlObj = new URL(url);
    return urlObj.hostname;
}
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