/**
 * joinColumn relations (e.g. i18n `localizations`) store `document_id` on the
 * inverse side. Export emits that value as a string ref; restore must not run it
 * through the numeric id mapper.
 */ const isDocumentIdJoinColumnTarget = (strapi, link, side)=>{
    if (side !== 'right') {
        return false;
    }
    const metadata = strapi.db?.metadata?.get(link.left.type);
    const attribute = metadata?.attributes?.[link.left.field];
    if (!attribute || attribute.type !== 'relation') {
        return false;
    }
    if (!('joinColumn' in attribute) || !attribute.joinColumn) {
        return false;
    }
    return attribute.joinColumn.referencedColumn === 'document_id';
};
const resolveLinkRef = (strapi, link, side, mapID)=>{
    const { type, ref } = side === 'left' ? link.left : link.right;
    if (isDocumentIdJoinColumnTarget(strapi, link, side)) {
        return ref;
    }
    const numericRef = typeof ref === 'number' ? ref : Number(ref);
    if (!Number.isFinite(numericRef)) {
        return undefined;
    }
    return mapID(type, numericRef);
};

export { isDocumentIdJoinColumnTarget, resolveLinkRef };
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