export function getSha256Field(value = {}, { lowercase = false } = {}) {
    const hashes = value.hashes && typeof value.hashes === 'object'
        ? value.hashes
        : {};
    const result = String(
        value.sha256 || value.hash || hashes.SHA256 || hashes.sha256 || ''
    ).trim();
    return lowercase ? result.toLowerCase() : result;
}

export function normalizeSha256(value = '') {
    let text = String(value || '').trim();
    text = text.replace(/^sha256[:=]/i, '').trim().toLowerCase();
    return /^[a-f0-9]{64}$/.test(text) ? text : '';
}