#!/usr/bin/env node

const elasticlunr = require( './elasticlunr.min' );
const fs = require( 'fs' );
const JSONStream = require( 'JSONStream' );
const es = require( 'event-stream' );

console.log( 'Creating ElasticLunr index..' );

const index = new elasticlunr.Index( );
index.addField( 'title' );
index.addField( 'content' );
index.setRef( 'uri' );
index.saveDocument( true );

var stream = fs.createReadStream( './posts.json' );

stream.pipe( JSONStream.parse( '*') )
	.pipe( es.mapSync( function( data ) {
		index.addDoc( data );
		return data;
	} )
	.on( 'end', function( ) {
		fs.writeFile( './posts.index', JSON.stringify( index ),
			function( err ) {
				if( err ) throw err;
			console.log( 'Finished creating index..' );
			}
		); 
	} )
)