/* global _ */

/*
 * Complex scripted dashboard
 * This script generates a dashboard object that Grafana can load. It also takes a number of user
 * supplied URL parameters (int ARGS variable)
 *
 */

'use strict';

// Setup some variables
var dashboard, _d_timespan;

// All url parameters are available via the ARGS object
var ARGS;

// Set a default timespan if one isn't specified
_d_timespan = '1d';

// Intialize a skeleton with nothing but a rows array and service object
dashboard = {
  rows : [],
  services : {}
};

// Set a title
dashboard.title = 'Scripted dash';
dashboard.services.filter = {
  time: {
    from: "now-"+(ARGS.from || _d_timespan),
    to: "now"
  }
};

var rows = 1;
var seriesName = 'argName';

if(!_.isUndefined(ARGS.rows)) {
  rows = parseInt(ARGS.rows, 10);
}

if(!_.isUndefined(ARGS.name)) {
  seriesName = ARGS.name;
}

for (var i = 0; i < rows; i++) {

  dashboard.rows.push({
    title: 'Chart',
    height: '300px',
    panels: [
      {
        title: 'Events',
        type: 'graphite',
        span: 12,
        fill: 1,
        linewidth: 2,
        targets: [
          {
            'target': "randomWalk('" + seriesName + "')"
          },
          {
            'target': "randomWalk('random walk2')"
          }
        ],
      }
    ]
  });

}

// Now return the object and we're good!
return dashboard;