require "test_helper"
require "api_controller"

class ApiControllerTest < ActionController::TestCase
  api_fixtures

  def setup
    super
    @badbigbbox = %w(-0.1,-0.1,1.1,1.1  10,10,11,11)
    @badmalformedbbox = %w(-0.1  hello
                           10N2W10.1N2.1W)
    @badlatmixedbbox = %w(0,0.1,0.1,0  -0.1,80,0.1,70  0.24,54.34,0.25,54.33)
    @badlonmixedbbox = %w(80,-0.1,70,0.1  54.34,0.24,54.33,0.25)
    # @badlatlonoutboundsbbox = %w{ 191,-0.1,193,0.1  -190.1,89.9,-190,90 }
    @goodbbox = %w(-0.1,-0.1,0.1,0.1  51.1,-0.1,51.2,0
                   -0.1,%20-0.1,%200.1,%200.1  -0.1edcd,-0.1d,0.1,0.1  -0.1E,-0.1E,0.1S,0.1N S0.1,W0.1,N0.1,E0.1)
    # That last item in the goodbbox really shouldn't be there, as the API should
    # reall reject it, however this is to test to see if the api changes.
  end

  ##
  # test all routes which lead to this controller
  def test_routes
    assert_routing(
      { :path => "/api/capabilities", :method => :get },
      { :controller => "api", :action => "capabilities" }
    )
    assert_recognizes(
      { :controller => "api", :action => "capabilities" },
      { :path => "/api/0.6/capabilities", :method => :get }
    )
    assert_routing(
      { :path => "/api/0.6/permissions", :method => :get },
      { :controller => "api", :action => "permissions" }
    )
    assert_routing(
      { :path => "/api/0.6/map", :method => :get },
      { :controller => "api", :action => "map" }
    )
    assert_routing(
      { :path => "/api/0.6/trackpoints", :method => :get },
      { :controller => "api", :action => "trackpoints" }
    )
    assert_routing(
      { :path => "/api/0.6/changes", :method => :get },
      { :controller => "api", :action => "changes" }
    )
  end

  # -------------------------------------
  # Test reading a bounding box.
  # -------------------------------------

  def test_map
    node = current_nodes(:used_node_1)
    # Need to split the min/max lat/lon out into their own variables here
    # so that we can test they are returned later.
    minlon = node.lon - 0.1
    minlat = node.lat - 0.1
    maxlon = node.lon + 0.1
    maxlat = node.lat + 0.1
    bbox = "#{minlon},#{minlat},#{maxlon},#{maxlat}"
    get :map, :bbox => bbox
    if $VERBOSE
      print @request.to_yaml
      print @response.body
    end
    assert_response :success, "Expected scucess with the map call"
    assert_select "osm[version='#{API_VERSION}'][generator='#{GENERATOR}']", :count => 1 do
      assert_select "bounds[minlon='#{minlon}'][minlat='#{minlat}'][maxlon='#{maxlon}'][maxlat='#{maxlat}']", :count => 1
      assert_select "node[id='#{node.id}'][lat='#{node.lat}'][lon='#{node.lon}'][version='#{node.version}'][changeset='#{node.changeset_id}'][visible='#{node.visible}'][timestamp='#{node.timestamp.xmlschema}']", :count => 1 do
        # This should really be more generic
        assert_select "tag[k='test'][v='yes']"
      end
      # Should also test for the ways and relation
    end
  end

  # This differs from the above test in that we are making the bbox exactly
  # the same as the node we are looking at
  def test_map_inclusive
    node = current_nodes(:used_node_1)
    bbox = "#{node.lon},#{node.lat},#{node.lon},#{node.lat}"
    get :map, :bbox => bbox
    assert_response :success, "The map call should have succeeded"
    assert_select "osm[version='#{API_VERSION}'][generator='#{GENERATOR}']", :count => 1 do
      assert_select "bounds[minlon='#{node.lon}'][minlat='#{node.lat}'][maxlon='#{node.lon}'][maxlat='#{node.lat}']", :count => 1
      assert_select "node[id='#{node.id}'][lat='#{node.lat}'][lon='#{node.lon}'][version='#{node.version}'][changeset='#{node.changeset_id}'][visible='#{node.visible}'][timestamp='#{node.timestamp.xmlschema}']", :count => 1 do
        # This should really be more generic
        assert_select "tag[k='test'][v='yes']"
      end
      # Should also test for the ways and relation
    end
  end

  def test_tracepoints
    point = gpx_files(:public_trace_file)
    minlon = point.longitude - 0.001
    minlat = point.latitude - 0.001
    maxlon = point.longitude + 0.001
    maxlat = point.latitude + 0.001
    bbox = "#{minlon},#{minlat},#{maxlon},#{maxlat}"
    get :trackpoints, :bbox => bbox
    assert_response :success
    assert_select "gpx[version='1.0'][creator='OpenStreetMap.org']", :count => 1 do
      assert_select "trk" do
        assert_select "trkseg"
      end
    end
  end

  def test_tracepoints_trackable
    point = gpx_files(:trackable_trace_file)
    minlon = point.longitude - 0.002
    minlat = point.latitude - 0.002
    maxlon = point.longitude + 0.002
    maxlat = point.latitude + 0.002
    bbox = "#{minlon},#{minlat},#{maxlon},#{maxlat}"
    get :trackpoints, :bbox => bbox
    assert_response :success
    assert_select "gpx[version='1.0'][creator='OpenStreetMap.org']", :count => 1 do
      assert_select "trk", :count => 1 do
        assert_select "trk > trkseg", :count => 2 do |trksegs|
          trksegs.each do |trkseg|
            assert_select trkseg, "trkpt", :count => 1 do |trkpt|
              assert_select trkpt[0], "time", :count => 1
            end
          end
        end
      end
    end
  end

  def test_tracepoints_identifiable
    point = gpx_files(:identifiable_trace_file)
    minlon = point.longitude - 0.002
    minlat = point.latitude - 0.002
    maxlon = point.longitude + 0.002
    maxlat = point.latitude + 0.002
    bbox = "#{minlon},#{minlat},#{maxlon},#{maxlat}"
    get :trackpoints, :bbox => bbox
    assert_response :success
    assert_select "gpx[version='1.0'][creator='OpenStreetMap.org']", :count => 1 do
      assert_select "trk", :count => 1 do
        assert_select "trk>name", :count => 1
        assert_select "trk>desc", :count => 1
        assert_select "trk>url", :count => 1
        assert_select "trkseg", :count => 1 do
          assert_select "trkpt", :count => 1 do
            assert_select "time", :count => 1
          end
        end
      end
    end
  end

  def test_map_without_bbox
    %w(trackpoints map).each do |tq|
      get tq
      assert_response :bad_request
      assert_equal "The parameter bbox is required, and must be of the form min_lon,min_lat,max_lon,max_lat", @response.body, "A bbox param was expected"
    end
  end

  def test_traces_page_less_than_0
    -10.upto(-1) do |i|
      get :trackpoints, :page => i, :bbox => "-0.1,-0.1,0.1,0.1"
      assert_response :bad_request
      assert_equal "Page number must be greater than or equal to 0", @response.body, "The page number was #{i}"
    end
    0.upto(10) do |i|
      get :trackpoints, :page => i, :bbox => "-0.1,-0.1,0.1,0.1"
      assert_response :success, "The page number was #{i} and should have been accepted"
    end
  end

  def test_bbox_too_big
    @badbigbbox.each do |bbox|
      %w(trackpoints map).each do |tq|
        get tq, :bbox => bbox
        assert_response :bad_request, "The bbox:#{bbox} was expected to be too big"
        assert_equal "The maximum bbox size is #{MAX_REQUEST_AREA}, and your request was too large. Either request a smaller area, or use planet.osm", @response.body, "bbox: #{bbox}"
      end
    end
  end

  def test_bbox_malformed
    @badmalformedbbox.each do |bbox|
      %w(trackpoints map).each do |tq|
        get tq, :bbox => bbox
        assert_response :bad_request, "The bbox:#{bbox} was expected to be malformed"
        assert_equal "The parameter bbox is required, and must be of the form min_lon,min_lat,max_lon,max_lat", @response.body, "bbox: #{bbox}"
      end
    end
  end

  def test_bbox_lon_mixedup
    @badlonmixedbbox.each do |bbox|
      %w(trackpoints map).each do |tq|
        get tq, :bbox => bbox
        assert_response :bad_request, "The bbox:#{bbox} was expected to have the longitude mixed up"
        assert_equal "The minimum longitude must be less than the maximum longitude, but it wasn't", @response.body, "bbox: #{bbox}"
      end
    end
  end

  def test_bbox_lat_mixedup
    @badlatmixedbbox.each do |bbox|
      %w(trackpoints map).each do |tq|
        get tq, :bbox => bbox
        assert_response :bad_request, "The bbox:#{bbox} was expected to have the latitude mixed up"
        assert_equal "The minimum latitude must be less than the maximum latitude, but it wasn't", @response.body, "bbox: #{bbox}"
      end
    end
  end

  # We can't actually get an out of bounds error, as the bbox is sanitised.
  # def test_latlon_outofbounds
  #  @badlatlonoutboundsbbox.each do |bbox|
  #    [ "trackpoints", "map" ].each do |tq|
  #      get tq, :bbox => bbox
  #      #print @request.to_yaml
  #      assert_response :bad_request, "The bbox #{bbox} was expected to be out of range"
  #      assert_equal "The latitudes must be between -90 an 90, and longitudes between -180 and 180", @response.body, "bbox: #{bbox}"
  #    end
  #  end
  # end

  # MySQL and Postgres require that the C based functions are installed for
  # this test to work. More information is available from:
  # http://wiki.openstreetmap.org/wiki/Rails#Installing_the_quadtile_functions
  # or by looking at the readme in db/README
  def test_changes_simple
    Timecop.freeze(Time.parse("2010-04-03 10:55:00"))
    get :changes
    assert_response :success
    # print @response.body
    # As we have loaded the fixtures, we can assume that there are no
    # changes at the time we have frozen at
    now = Time.now.getutc
    hourago = now - 1.hour
    assert_select "osm[version='#{API_VERSION}'][generator='#{GENERATOR}']", :count => 1 do
      assert_select "changes[starttime='#{hourago.xmlschema}'][endtime='#{now.xmlschema}']", :count => 1
    end
    Timecop.return
  end

  def test_changes_zoom_invalid
    zoom_to_test = %w(p -1 0 17 one two)
    zoom_to_test.each do |zoom|
      get :changes, :zoom => zoom
      assert_response :bad_request
      assert_equal @response.body, "Requested zoom is invalid, or the supplied start is after the end time, or the start duration is more than 24 hours"
    end
  end

  def test_changes_zoom_valid
    1.upto(16) do |zoom|
      get :changes, :zoom => zoom
      assert_response :success
      # NOTE: there was a test here for the timing, but it was too sensitive to be a good test
      # and it was annoying.
      assert_select "osm[version='#{API_VERSION}'][generator='#{GENERATOR}']", :count => 1 do
        assert_select "changes", :count => 1
      end
    end
  end

  def test_hours_invalid
    invalid = %w(-21 335 -1 0 25 26 100 one two three ping pong :)
    invalid.each do |hour|
      get :changes, :hours => hour
      assert_response :bad_request, "Problem with the hour: #{hour}"
      assert_equal @response.body, "Requested zoom is invalid, or the supplied start is after the end time, or the start duration is more than 24 hours", "Problem with the hour: #{hour}."
    end
  end

  def test_hours_valid
    1.upto(24) do |hour|
      get :changes, :hours => hour
      assert_response :success
    end
  end

  def test_capabilities
    get :capabilities
    assert_response :success
    assert_select "osm[version='#{API_VERSION}'][generator='#{GENERATOR}']", :count => 1 do
      assert_select "api", :count => 1 do
        assert_select "version[minimum='#{API_VERSION}'][maximum='#{API_VERSION}']", :count => 1
        assert_select "area[maximum='#{MAX_REQUEST_AREA}']", :count => 1
        assert_select "tracepoints[per_page='#{TRACEPOINTS_PER_PAGE}']", :count => 1
        assert_select "changesets[maximum_elements='#{Changeset::MAX_ELEMENTS}']", :count => 1
        assert_select "status[database='online']", :count => 1
        assert_select "status[api='online']", :count => 1
        assert_select "status[gpx='online']", :count => 1
      end
    end
  end

  def test_permissions_anonymous
    get :permissions
    assert_response :success
    assert_select "osm > permissions", :count => 1 do
      assert_select "permission", :count => 0
    end
  end

  def test_permissions_basic_auth
    basic_authorization(users(:normal_user).email, "test")
    get :permissions
    assert_response :success
    assert_select "osm > permissions", :count => 1 do
      assert_select "permission", :count => ClientApplication.all_permissions.size
      ClientApplication.all_permissions.each do |p|
        assert_select "permission[name='#{p}']", :count => 1
      end
    end
  end

  def test_permissions_oauth
    @request.env["oauth.token"] =  AccessToken.new do |token|
      # Just to test a few
      token.allow_read_prefs = true
      token.allow_write_api = true
      token.allow_read_gpx = false
    end
    get :permissions
    assert_response :success
    assert_select "osm > permissions", :count => 1 do
      assert_select "permission", :count => 2
      assert_select "permission[name='allow_read_prefs']", :count => 1
      assert_select "permission[name='allow_write_api']", :count => 1
      assert_select "permission[name='allow_read_gpx']", :count => 0
    end
  end
end