#!/usr/bin/env node

// Parse arguments
var args = process.argv.slice(2);
if (args.length > 1) {
  console.error('usage: json-to-sparql query.json');
  return process.exit(1);
}

var fs = require('fs'),
    SparqlGenerator = require('../sparql').Generator;

// Parse JSON and output stringified query
var query = '', source = args[0] ? fs.createReadStream(args[0]) : process.stdin;
source.setEncoding('utf8');
source.on('data', function (data) { query += data; });
source.on('end', function () {
  var sparqlText = new SparqlGenerator().stringify(JSON.parse(query));
  process.stdout.write(sparqlText + '\n');
});