/**
 * Helper: Find document by path (including unpublished), following redirects
 * Returns the document along with whether the access was via redirect
 */
async function findDocumentByPath(client, path, options) {
    // First find the route
    const routeResult = await client.query(`SELECT id, path, document_id FROM routes WHERE path = $1`, [path]);
    if (routeResult.rows.length === 0) {
        return null;
    }
    const route = routeResult.rows[0];
    // Build WHERE clause with optional published filter
    const whereConditions = ['d.id = r1.document_id'];
    if (options?.published !== undefined) {
        whereConditions.push(`d.published = ${options.published}`);
    }
    // Then find the document via the route's document_id
    const result = await client.query(`SELECT d.*, 
            row_to_json(r2.*) as route,
            (r1.id != d.path_id) as redirect
     FROM documents d
     JOIN routes r1 ON r1.id = $1
     JOIN routes r2 ON d.path_id = r2.id
     WHERE ${whereConditions.join(' AND ')}`, [route.id]);
    return result.rows[0] || null;
}
/**
 * Helper: Find document by id or path, following redirects
 * Returns document with redirect flag when accessed via non-canonical path
 */
export const findDocument = async (client, query, options) => {
    if (query.id !== undefined) {
        // Build WHERE clause with optional published filter
        const whereConditions = ['d.id = $1'];
        if (options?.published !== undefined) {
            whereConditions.push(`d.published = ${options.published}`);
        }
        // Find by ID
        const result = await client.query(`SELECT d.*, 
              row_to_json(r.*) as route,
              false as redirect
       FROM documents d
       JOIN routes r ON d.path_id = r.id
       WHERE ${whereConditions.join(' AND ')}`, [query.id]);
        return result.rows[0] || null;
    }
    else if (query.path !== undefined) {
        // Find by path (follows redirects)
        return await findDocumentByPath(client, query.path, options);
    }
    return null;
};
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