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var clutch = require('clutch');
var pg = require('pg')
var builder = require('xmlbuilder')
var connectionString = "pg://user:password@host/database";
function createNodeBboxQuery(key, value, left, bottom, right, top) {
/*
* return "SELECT * from nodes WHERE (tags @> '\"" + key
+ "\"=>\"" + value + "\"'" +
" AND POINT(geom) @ polygon(box('(" + left
+ "," + bottom +")'::point,'(" +
+ right + "," + top + ")'::point)));";
*/
return "SELECT id,tstamp,version,changeset_id, X(geom) as lat, Y(geom) as lon FROM nodes WHERE (tags @> hstore('" + key + "','" + value + "') AND geom && st_setsrid(st_makebox2d(st_setsrid(st_makepoint(" +
left + "," + bottom + "),4326), st_setsrid(st_makepoint(" + right + "," + top + "),4326)),4326));";
}
function nodeWorldHandler(req, res, key, value) {
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end(' key:' +key +' value:'+value+'\n');
}
function nodeBboxHandler(req, res, key, value, left, bottom, right, top) {
pg.connect(connectionString, function(err,client) {
if (err) {
console.log(err);
res.writeHead(404,{});
res.end('\n');
}
else {
console.log(createNodeBboxQuery(key, value, left, bottom, right, top));
client.query(createNodeBboxQuery(key, value, left, bottom, right, top), function(err,result) {
if (err) {
console.log(err);
res.writeHead(404,{});
res.end('\n');
}
else {
console.log(result.rows);
res.writeHead(200, {'Content-Type': 'text/plain'});
//res.write("lala");
res.write("<xml>");
for(var i=0; i<result.rows.length;i++) {
/*//res.write(result.rows[i].id);
res.write("<node id='" + result.rows[i].id + "'" +
" timestamp='" + result.rows[i].tstamp + "'" +
+ " version='" + result.rows[i].version + "'" +
//+ " changeset='" + result.rows[i].changeset_id + "'" +
">");
res.write("</node>");
//console.log(result.rows[i].id);
*/
var node = builder.begin('node')
.att('id', result.rows[i].id)
.att('timetamp', result.rows[i].tstamp)
.att('version', result.rows[i].version)
.att('changeset', result.rows[i].changeset_id)
.att('lat', result.rows[i].lat)
.att('lon', result.rows[i].lon);
res.write(builder.toString());
}
res.write("</xml>");
res.end();
}
});
}
});
//console.log(createNodeBboxQuery(key, value, left, bottom, right, top));
//res.writeHead(200, {'Content-Type': 'text/plain'});
//res.end( 'bbox: '+ left + bottom + right + top + ' key:' +key +' value:'+value+'!\n');
}
function wayWorldHandler(req, res, key, value) {
res.writeHead(200, {'Content-Type': 'text/plain'});
}
function wayBboxHandler(req, res, key, value, bbox, left, bottom, right, top) {
}
function relationWorldHandler(req, res, key, value) {
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end(' key:' +key +' value:'+value+'!\n');
}
function relationBboxHandler(req, res, key, value, left, bottom, right, top) {
}
myRoutes = clutch.route404([
//['GET /api/(\\w+)(\\[bbox=(\\d,\\d,\\d,\\d)\\])*\\[(\\w+)=(\\w+)\\]$', helloSomeone],
['GET /api/node\\[(\\w+)=(\\w+)\\]$',nodeWorldHandler],
//['GET /api/node\\[(\\w+)=(\\w+)\\]\\[bbox=(\\d+(\\.\\d+)?),(\\d+),(\\d+),(\\d+)\\]$',nodeBboxHandler],
['GET /api/node\\[(\\w+)=(\\w+)\\]\\[bbox=(\\d+(?:\\.\\d+)?),(\\d+(?:\\.\\d+)?),(\\d+(?:\\.\\d+)?),(\\d+(?:\\.\\d+)?)\\]$',nodeBboxHandler],
//['GET /api/node\\[(\\w+)=(\\w+)\\]\\[bbox=(\\d+\\.\\d+),(\\d+),(\\d+),(\\d+)\\]$',nodeBboxHandler],
['GET /api/way\\[(\\w+)=(\\w+)\\]$',wayWorldHandler],
['GET /api/way\\[(\\w+)=(\\w+)\\]\\[bbox=(\\d),(\\d),(\\d),(\\d)\\]$',wayBboxHandler],
['GET /api/relation\\[(\\w+)=(\\w+)\\]$',relationWorldHandler],
['GET /api/relation\\[(\\w+)=(\\w+)\\](\\[bbox=(\\d),(\\d),(\\d),(\\d)\\])$',relationBboxHandler],
]);
var http = require('http');
http.createServer(myRoutes).listen(8080, 'localhost');
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