#!/usr/bin/env node

var level = require('level');
var sublevel = require('subleveldown');

var rawdb = level('/tmp/raw');
var db = sublevel(rawdb, 'd', {valueEncoding: 'json'});
var idb = sublevel(rawdb, 'i');
var treeIndexer = require('../index.js');

var tree = treeIndexer(db, idb);

function fail(err) {
  console.error(err);
  process.exit(0);
}

/*
 
Builds the structure:

foo
--bar
----baz
--cat

and then gets a stream of the child-paths of foo

*/

db.put('1', {name: "foo"}, function(err) {
  if(err) fail(err);

  db.put('2', {parentKey: '1', name: "bar"}, function(err) {
    if(err) fail(err);

    db.put('3', {parentKey: '2', name: "baz"}, function(err) {
      if(err) fail(err);

      db.put('4', {parentKey: '1', name: "cat"}, function(err) {
        if(err) fail(err);
        
        console.log("added data");
        
        // wait for index to finish building
        setTimeout(function() {

          // get children of foo
          tree.children('foo', function(err, children) {
            if(err) fail(err);
            
            console.log('children:', children)
          });
        }, 500);
        
      });
    });
  });
})