import { NextRequest, NextResponse } from 'next/server';
import { getSQLiteClient } from '@/services/database/sqlite-client';

export const runtime = 'nodejs';

export async function GET(request: NextRequest) {
  try {
    const searchParams = request.nextUrl.searchParams;
    const query = searchParams.get('q') || '';
    
    if (!query.trim()) {
      return NextResponse.json({
        success: false,
        error: 'Search query is required'
      }, { status: 400 });
    }

    return searchDimensionsSQLite(query);
  } catch (error) {
    console.error('Error searching dimensions:', error);
    
    return NextResponse.json({
      success: false,
      error: error instanceof Error ? error.message : 'Failed to search dimensions'
    }, { status: 500 });
  }
}

// PostgreSQL path removed in SQLite-only consolidation

async function searchDimensionsSQLite(query: string) {
  const sqlite = getSQLiteClient();
  
  const result = sqlite.query(`
    SELECT nd.dimension, COUNT(*) AS count
    FROM node_dimensions nd
    WHERE LOWER(nd.dimension) LIKE LOWER(?)
    GROUP BY nd.dimension
    ORDER BY count DESC, nd.dimension ASC
    LIMIT 20
  `, [`%${query}%`]);

  return NextResponse.json({
    success: true,
    // eslint-disable-next-line @typescript-eslint/no-explicit-any
    data: result.rows.map((row: any) => ({
      dimension: row.dimension,
      count: Number(row.count)
    }))
  });
}