Class: Admission::VisualisationApp

Inherits:
Object
  • Object
show all
Defined in:
lib/admission/visualisation_app.rb

Instance Method Summary collapse

Constructor Details

#initialize(**settings) ⇒ VisualisationApp

Returns a new instance of VisualisationApp.



6
7
8
9
10
11
12
13
14
 
# File 'lib/admission/visualisation_app.rb', line 6

def initialize **settings
  order = settings[:order] || (raise 'order not defined, cannot visualise data')
  raise 'order must be a Proc' unless Proc === order

  settings[:js_entry] ||= Pathname.new(__FILE__).join('..', '..', '..',
      'visualisation', 'dist', 'app.js')

  @settings = settings
end

Instance Method Details

#call(env) ⇒ Object 



16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
 
# File 'lib/admission/visualisation_app.rb', line 16

def call env
  case env['PATH_INFO'].to_s
    when %r~^/(\.html)?$~
      [
          200,
          {'Content-Type' => 'text/html; charset=utf-8'},
          [render_page]
      ]

    when %r~/app\.js~
      [
          200,
          {'Content-Type' => 'application/js; charset=utf-8'},
          [File.read(@settings[:js_entry])]
      ]

    when %r~/data\.json~
      [
          200,
          {'Content-Type' => 'application/json; charset=utf-8'},
          [render_data(@settings[:order].call)]
      ]

    else
      default_404_response

  end
end

#default_404_response ⇒ Object 



121
122
123
124
125
126
127
128
129
130
131
132
133
 
# File 'lib/admission/visualisation_app.rb', line 121

def default_404_response
  page = if @settings[:file_404]
    File.read @settings[:file_404]
  else
    'Admission::VisualisationApp : page not found'
  end

  [
      404,
      {'Content-Type' => 'text/html; charset=utf-8'},
      [page]
  ]
end

#render_data(privileges:, rules:, arbitrator: Admission::ResourceArbitration) ⇒ Object 



65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
 
# File 'lib/admission/visualisation_app.rb', line 65

def render_data privileges:, rules:, arbitrator: Admission::ResourceArbitration
  js_data = {}

  top_levels = []
  privileges = privileges.values.inject Array.new do |arr, levels|
    tops, others = levels.to_a.partition{|key, _| key == :'^'}
    tops.first[1].tap{|privilege| top_levels << privilege.text_key}

    others.each do |_, privilege|
      arr << {name: privilege.name, level: privilege.level,
          inherits: privilege.inherited && privilege.inherited.map(&:text_key)}
    end

    arr
  end

  js_data[:privileges] = privileges
  js_data[:top_levels] = top_levels
  js_data[:levels] = privileges.inject Hash.new do |hash, p|
    (hash[p[:name]] ||= []) << p[:level]
    hash
  end

  actions_reduce = -> (index) {
    index.to_a.map do |action, action_index|
      action_index = action_index.to_a.map do |privilege, rule|
        if rule.is_a? Proc
          rule = 'proc'
        end

        [privilege.text_key, rule]
      end

      [action, Hash[action_index]]
    end
  }

  rules = if arbitrator == Admission::Arbitration
    single_scope = actions_reduce[rules]
    [['-non-scoped-', Hash[single_scope]]]

  elsif arbitrator == Admission::ResourceArbitration
    rules.to_a.map do |scope, scope_index|
      scope_index = actions_reduce[scope_index]
      [scope, Hash[scope_index]]
    end

  else
    raise "not implemented for #{arbitrator.name}"

  end
  js_data[:rules] = Hash[rules]

  JSON.generate js_data
end

#render_page ⇒ Object 



45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
 
# File 'lib/admission/visualisation_app.rb', line 45

def render_page
  data_url = "#{@settings[:url_prefix]}/data.json"
  script_url = "#{@settings[:url_prefix]}/app.js"

  <<-HEREDOC
<!DOCTYPE html>
<html>
<head>
<title>Admission</title>
</head>
<body class='flex-column'>

<div data-url="#{data_url}" id="admission-visualisation"></div>
<script src="#{script_url}"></script>

</body>
</html>
  HEREDOC
end