angular.module('kibana.map2', [])
.controller('map2', function($scope, eventBus) {

  // Set and populate defaults
  var _d = {
    query   : "*",
    map     : "world",
    colors  : ['#C8EEFF', '#0071A4'],
    size    : 1000,
    exclude : [],
    spyable : true,
    group   : "default",
    index_limit : 0
  }

  _.defaults($scope.panel,_d)

        console.log("$scope.panel", $scope.panel);
        console.log("_d", _d);
  $scope.init = function() {
      console.log("init");
    eventBus.register($scope,'time', function(event,time){set_time(time)});
    eventBus.register($scope,'query', function(event, query) {
      $scope.panel.query = _.isArray(query) ? query[0] : query;
      $scope.get_data();
    });
    // Now that we're all setup, request the time from our group
    eventBus.broadcast($scope.$id,$scope.panel.group,'get_time')
  }

        $scope.isNumber = function(n) {
            return !isNaN(parseFloat(n)) && isFinite(n);
        }

  $scope.get_data = function() {

      console.log("get_data");
    // Make sure we have everything for the request to complete
    if(_.isUndefined($scope.panel.index) || _.isUndefined($scope.time))
      return


    $scope.panel.loading = true;
    var request = $scope.ejs.Request().indices($scope.panel.index);


      var facet = $scope.ejs.TermsFacet('map')
          .field($scope.panel.field)
          .size(1000)
          .exclude($scope.panel.exclude)
          .facetFilter(ejs.QueryFilter(
              ejs.FilteredQuery(
                  ejs.QueryStringQuery($scope.panel.query || '*'),
                  ejs.RangeFilter($scope.time.field)
                      .from($scope.time.from)
                      .to($scope.time.to)
              )));






    // Then the insert into facet and make the request
    var request = request.facet(facet).size(0);

    $scope.populate_modal(request);

    var results = request.doSearch();

    // Populate scope when we have results
    results.then(function(results) {
      $scope.panel.loading = false;
      $scope.hits = results.hits.total;
      $scope.data = {};
        console.log("results",results);
      _.each(results.facets.map.terms, function(v) {

          //FIX THIS
          if (!$scope.isNumber(v.term)) {
              $scope.data[v.term.toUpperCase()] = v.count;
          } else {
              $scope.data[v.term] = v.count;
          }

      });

        console.log("emit render");
      $scope.$emit('render')
    });

  }

  // I really don't like this function, too much dom manip. Break out into directive?
  $scope.populate_modal = function(request) {
    $scope.modal = {
      title: "Inspector",
      body : "<h5>Last Elasticsearch Query</h5><pre>"+
          'curl -XGET '+config.elasticsearch+'/'+$scope.panel.index+"/_search?pretty -d'\n"+
          angular.toJson(JSON.parse(request.toString()),true)+
        "'</pre>", 
    } 
  }

  function set_time(time) {
    $scope.time = time;
    $scope.panel.index = _.isUndefined(time.index) ? $scope.panel.index : time.index
    $scope.get_data();
  }

  $scope.build_search = function(field,value) {
    $scope.panel.query = add_to_query($scope.panel.query,field,value,false)
    $scope.get_data();
    eventBus.broadcast($scope.$id,$scope.panel.group,'query',$scope.panel.query);
  }

})
.directive('map2', function() {
  return {
    restrict: 'A',
    link: function(scope, elem, attrs) {

      elem.html('<center><img src="common/img/load_big.gif"></center>')

      // Receive render events
      scope.$on('render',function(){
          console.log("render");
        render_panel();
      });

      // Or if the window is resized
      angular.element(window).bind('resize', function(){
          console.log("resize");
        render_panel();
      });

      function render_panel() {

            console.log("render_panel");
            console.log(scope.panel);
            console.log(elem);


        // Using LABjs, wait until all scripts are loaded before rendering panel
        var scripts = $LAB.script("panels/map2/lib/d3.v3.min.js")
            .script("panels/map2/lib/topojson.v0.min.js")
            .script("panels/map2/lib/node-geohash.js")
            .script("panels/map2/lib/d3.hexbin.v0.min.js");
                    
        // Populate element. Note that jvectormap appends, does not replace.
        scripts.wait(function(){
          elem.text('');



            //Better way to get these values?  Seems kludgy to use jQuery on the div...
            var width = $(elem[0]).width(),
                height = $(elem[0]).height();

            console.log("draw map", width, height);

            //Scale the map by whichever dimension is the smallest, helps to make sure the whole map is shown
            var scale = (width > height) ? (height / 2 / Math.PI) : (width / 2 / Math.PI);


            var projection = d3.geo.mercator()
                .translate([0, 0])
                .scale(scale);

            var zoom = d3.behavior.zoom()
                .scaleExtent([1, 8])
                .on("zoom", move);

            var path = d3.geo.path()
                .projection(projection);


            var svg = d3.select(elem[0]).append("svg")
                .attr("width", width)
                .attr("height", height)
                .append("g")
                .attr("transform", "translate(" + width / 2 + "," + height / 2 + ")")
                .call(zoom);

            var g = svg.append("g");

            svg.append("rect")
                .attr("class", "overlay")
                .attr("x", -width / 2)
                .attr("y", -height / 2)
                .attr("width", width)
                .attr("height", height);

            d3.json("panels/map2/lib/world-50m.json", function(error, world) {
                g.append("path")
                    .datum(topojson.object(world, world.objects.countries))
                    .attr("class", "land")
                    .attr("d", path);

                g.append("path")
                    .datum(topojson.mesh(world, world.objects.countries, function(a, b) { return a !== b; }))
                    .attr("class", "boundary")
                    .attr("d", path);








                var points = _.map(scope.data, function (k,v) {
                    var decoded = geohash.decode(v);
                    return projection([decoded.longitude, decoded.latitude]);
                })

                var color = d3.scale.linear()
                    .domain([0, 20])
                    .range(["white", "steelblue"])
                    .interpolate(d3.interpolateLab);

                var hexbin = d3.hexbin()
                    .size([width, height])
                    .radius(10);




                g.selectAll(".hexagon")
                    .data(hexbin(points))
                    .enter().append("path")
                    .attr("d", function(d) { return hexbin.hexagon(); })
                    .attr("class", "hexagon")
                    .attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; })
                    .style("fill", function(d) { console.log(d); return color(d.length); })
                    .attr("opacity", 1);




                /*

                 raw, ugly points
                 */

                var points = _.map(scope.data, function (k,v) {
                    var decoded = geohash.decode(v);
                    return {lat: decoded.latitude, lon: decoded.longitude};
                })

                g.selectAll("circles.points")
                    .data(points)
                    .enter()
                    .append("circle")
                    .attr("r",1)
                    .attr("transform", function(d) {return "translate(" + projection([d.lon,d.lat]) + ")";});






            });





            function move() {
                var t = d3.event.translate,
                    s = d3.event.scale;
                t[0] = Math.min(width / 2 * (s - 1), Math.max(width / 2 * (1 - s), t[0]));
                t[1] = Math.min(height / 2 * (s - 1) + 230 * s, Math.max(height / 2 * (1 - s) - 230 * s, t[1]));
                zoom.translate(t);
                g.style("stroke-width", 1 / s).attr("transform", "translate(" + t + ")scale(" + s + ")");
            }






        })
      }
    }
  };
});