/**
 * Uint8Array 转 Base64
 */
export function uint8ArrayToBase64(bytes: Uint8Array): string {
    let binary = '';
    for (let i = 0; i < bytes.length; i++) {
        binary += String.fromCharCode(bytes[i]);
    }
    return btoa(binary);
}

/**
 * Base64 转 Uint8Array
 */
export function base64ToUint8Array(base64: string): Uint8Array {
    const binary = atob(base64);
    const bytes = new Uint8Array(binary.length);
    for (let i = 0; i < binary.length; i++) {
        bytes[i] = binary.charCodeAt(i);
    }
    return bytes;
}

/**
 * 字符串转 Uint8Array
 */
export function stringToUint8Array(str: string): Uint8Array {
    const encoder = new TextEncoder();
    return encoder.encode(str);
}

/**
 * Uint8Array 转字符串
 */
export function uint8ArrayToString(bytes: Uint8Array): string {
    const decoder = new TextDecoder();
    return decoder.decode(bytes);
}