@ansvar/singapore-law-mcp/dist/src/tools/build-legal-stance.js

Complete Singapore law database — 523 Acts, 28K+ provisions from Singapore Statutes Online (sso.agc.gov.sg) with full-text search, definitions, and citation support

/**
 * build_legal_stance — Build a comprehensive set of citations for a legal question.
 */
import { buildFtsQueryVariants, sanitizeFtsInput } from '../utils/fts-query.js';
import { generateResponseMetadata } from '../utils/metadata.js';
export async function buildLegalStance(db, input) {
    if (!input.query || input.query.trim().length === 0) {
        return { results: [], _metadata: generateResponseMetadata(db) };
    }
    const limit = Math.min(Math.max(input.limit ?? 5, 1), 20);
    const queryVariants = buildFtsQueryVariants(sanitizeFtsInput(input.query));
    for (const ftsQuery of queryVariants) {
        let sql = `
      SELECT
        lp.document_id,
        ld.title as document_title,
        lp.provision_ref,
        lp.section,
        lp.title,
        snippet(provisions_fts, 0, '>>>', '<<<', '...', 48) as snippet,
        bm25(provisions_fts) as relevance
      FROM provisions_fts
      JOIN legal_provisions lp ON lp.id = provisions_fts.rowid
      JOIN legal_documents ld ON ld.id = lp.document_id
      WHERE provisions_fts MATCH ?
    `;
        const params = [ftsQuery];
        if (input.document_id) {
            sql += ' AND lp.document_id = ?';
            params.push(input.document_id);
        }
        sql += ' ORDER BY relevance LIMIT ?';
        params.push(limit);
        try {
            const rows = db.prepare(sql).all(...params);
            if (rows.length > 0) {
                return { results: rows, _metadata: generateResponseMetadata(db) };
            }
        }
        catch {
            continue;
        }
    }
    return { results: [], _metadata: generateResponseMetadata(db) };
}
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