#!/usr/bin/env node

// Reset redis-stored XML styles so that they are regenerated
// from CartoCSS on next tile request

var redis = require('redis')

var REDIS_PORT = 6379; // TODO: make a parameter

var dbnum = 0;

var client = redis.createClient(REDIS_PORT, 'localhost');
client.on('connect', function() {
  client.select(dbnum);
  client.keys('map_style|*', function(err, matches) {

    processNext = function() {
      if ( ! matches.length ) process.exit(0);
      var k = matches.shift();
      console.log("Resetting XML in key: " + k);
      client.get(k, function(err, val) {
        if ( err ) throw err;
        val = JSON.parse(val);
        delete val.xml;
        client.set(k, JSON.stringify(val), function() {
          console.log("done with style " + k);
          processNext();
        });
      });
    }

    processNext();

  });
});