Enterprises can calculate their distances from a location via geocode lookup

app/assets/javascripts/darkswarm/services/enterprises.js.coffee

@@ -1,4 +1,4 @@
-Darkswarm.factory 'Enterprises', (enterprises, CurrentHub, Taxons, Dereferencer, visibleFilter)->
+Darkswarm.factory 'Enterprises', (enterprises, CurrentHub, Taxons, Dereferencer, visibleFilter, Geo)->
   new class Enterprises
     enterprises_by_id: {}
     constructor: ->
@@ -28,3 +28,24 @@ Darkswarm.factory 'Enterprises', (enterprises, CurrentHub, Taxons, Dereferencer,
         Dereferencer.dereference enterprise.taxons, Taxons.taxons_by_id
         Dereferencer.dereference enterprise.supplied_taxons, Taxons.taxons_by_id
 
+    updateDistance: (query) ->
+      if query.length > 0
+        @calculateDistance(query)
+      else
+        @resetDistance()
+
+    calculateDistance: (query) ->
+      Geo.geocode query, (results, status) =>
+        if status == Geo.OK
+          console.log "Geocoded #{query} -> #{results[0].geometry.location}."
+          @setDistanceFrom results[0].geometry.location
+        else
+          console.log "Geocoding failed for the following reason: #{status}"
+          @resetDistance()
+
+    setDistanceFrom: (location) ->
+      for enterprise in @enterprises
+        enterprise.distance = Geo.distanceBetween enterprise, location
+
+    resetDistance: ->
+      enterprise.distance = null for enterprise in @enterprises

spec/javascripts/unit/darkswarm/services/enterprise_spec.js.coffee

@@ -1,6 +1,18 @@
 describe "Enterprises service", ->
   Enterprises = null
   CurrentHubMock = {}
+  Geo =
+    OK: 'ok'
+    succeed: true
+    geocode: (query, callback) ->
+      if @succeed
+        results = [{geometry: {location: "location"}}]
+        callback(results, @OK)
+      else
+        callback(results, 'Oops')
+    distanceBetween: (locatable, location) ->
+      123
+
   taxons = [
     {id: 1, name: "test"}
   ]
@@ -19,6 +31,7 @@ describe "Enterprises service", ->
     module 'Darkswarm'
     module ($provide)->
       $provide.value "CurrentHub", CurrentHubMock
+      $provide.value "Geo", Geo
       null
     angular.module('Darkswarm').value('enterprises', enterprises)
     angular.module('Darkswarm').value('taxons', taxons)
@@ -73,3 +86,45 @@ describe "Enterprises service", ->
     expect(Enterprises.producers).toContain Enterprises.enterprises[4]
     expect(Enterprises.producers).toContain Enterprises.enterprises[5]
     expect(Enterprises.producers).toContain Enterprises.enterprises[6]
+
+  describe "updating distance of enterprises from a location", ->
+    it "calculates the distance when a query is provided", ->
+      spyOn(Enterprises, "calculateDistance")
+      Enterprises.updateDistance "asdf"
+      expect(Enterprises.calculateDistance).toHaveBeenCalledWith("asdf")
+
+    it "resets the distance when query is blank", ->
+      spyOn(Enterprises, "resetDistance")
+      Enterprises.updateDistance ""
+      expect(Enterprises.resetDistance).toHaveBeenCalled()
+
+  describe "calculating the distance of enterprises from a location", ->
+    beforeEach ->
+      spyOn(Enterprises, "setDistanceFrom")
+
+    it "calculates distance for all enterprises when geocoding succeeds", ->
+      Geo.succeed = true
+      Enterprises.calculateDistance('query')
+      expect(Enterprises.setDistanceFrom).toHaveBeenCalledWith("location")
+
+    it "resets distance when geocoding fails", ->
+      Geo.succeed = false
+      spyOn(Enterprises, "resetDistance")
+      Enterprises.calculateDistance('query')
+      expect(Enterprises.setDistanceFrom).not.toHaveBeenCalled()
+      expect(Enterprises.resetDistance).toHaveBeenCalled()
+
+  describe "setting the distance of each enterprise from a central location", ->
+    it "sets the distances", ->
+      Enterprises.setDistanceFrom 'location'
+      for e in Enterprises.enterprises
+        expect(e.distance).toEqual 123
+
+  describe "resetting the distance measurement of all enterprises", ->
+    beforeEach ->
+      e.distance = 123 for e in Enterprises.enterprises
+
+    it "resets the distance", ->
+      Enterprises.resetDistance()
+      for e in Enterprises.enterprises
+        expect(e.distance).toBeNull()

spec/javascripts/unit/darkswarm/services/groups_spec.js.coffee

@@ -1,7 +1,8 @@
 describe "Groups service", ->
   Groups = null
   Enterprises = null
-  CurrentHubMock = {} 
+  CurrentHubMock = {}
+  Geo = {}
   groups = [{
     id: 1
     name: "Test Group"
@@ -17,17 +18,18 @@ describe "Groups service", ->
 
   beforeEach ->
     module 'Darkswarm'
-    angular.module('Darkswarm').value('groups', groups) 
-    angular.module('Darkswarm').value('enterprises', enterprises) 
+    angular.module('Darkswarm').value('groups', groups)
+    angular.module('Darkswarm').value('enterprises', enterprises)
     module ($provide)->
-      $provide.value "CurrentHub", CurrentHubMock 
+      $provide.value "CurrentHub", CurrentHubMock
+      $provide.value "Geo", Geo
       null
     inject (_Groups_, _Enterprises_)->
-      Groups = _Groups_ 
-      Enterprises = _Enterprises_ 
+      Groups = _Groups_
+      Enterprises = _Enterprises_
 
   it "dereferences group enterprises", ->
     expect(Groups.groups[0].enterprises[0]).toBe enterprises[0]
-  
+
   it "dereferences enterprise groups", ->
     expect(Enterprises.enterprises[0].groups[0]).toBe groups[0]

spec/javascripts/unit/darkswarm/services/map_spec.js.coffee

@@ -1,6 +1,7 @@
 describe "Hubs service", ->
   OfnMap = null
-  CurrentHubMock = {} 
+  CurrentHubMock = {}
+  Geo = {}
   enterprises = [
     {
       id: 2
@@ -13,12 +14,13 @@ describe "Hubs service", ->
 
   beforeEach ->
     module 'Darkswarm'
-    angular.module('Darkswarm').value('enterprises', enterprises) 
+    angular.module('Darkswarm').value('enterprises', enterprises)
     module ($provide)->
-      $provide.value "CurrentHub", CurrentHubMock 
+      $provide.value "CurrentHub", CurrentHubMock
+      $provide.value "Geo", Geo
       null
     inject ($injector)->
-      OfnMap = $injector.get("OfnMap") 
+      OfnMap = $injector.get("OfnMap")
 
   it "builds MapMarkers from enterprises", ->
     expect(OfnMap.enterprises[0].id).toBe enterprises[0].id

spec/javascripts/unit/darkswarm/services/products_spec.js.coffee

@@ -10,6 +10,7 @@ describe 'Products service', ->
   productWithImage = null
   properties = null
   taxons = null
+  Geo = {}
 
   beforeEach ->
     product =
@@ -40,6 +41,7 @@ describe 'Products service', ->
       $provide.value "currentOrder", currentOrder
       $provide.value "taxons", taxons
       $provide.value "properties", properties
+      $provide.value "Geo", Geo
       null
 
     inject ($injector, _$httpBackend_)->