1require 'csv'
  
2
  
3class Archived::PetitionsController < ApplicationController
  
4  before_action :redirect_to_valid_state, only: [:index]
  
5  before_action :fetch_parliament, only: [:index]
  
6  before_action :fetch_petitions, only: [:index]
  
7  before_action :fetch_petition, only: [:show]
  
8
  
 9  before_action :set_cors_headers, only: [:index, :show], if: :json_request?
  
10  after_action :set_content_disposition, if: :csv_request?, only: [:index]
  
11
  
12  helper_method :archived_petition_facets
  
13
  
14  def index
  
15    respond_to do |format|
  
16      format.html
  
17      format.json
  
18      format.csv
  
19    end
  
20  end
  
21
  
22  def show
  
23    respond_to do |format|
  
24      format.html
  
25      format.json
  
26    end
  
27  end
  
28
  
29  private
  
30
  
31  def parliament_id
  
32    params[:parliament].to_i
  
33  end
  
34
  
35  def petition_id
  
36    params[:id].to_i
  
37  end
  
38
  
39  def fetch_parliament
  
40    if params.key?(:parliament)
  
41      @parliament = Parliament.archived.find(parliament_id)
  
42    else
  
43      @parliament = Parliament.archived.first
  
44    end
  
45  end
  
46
  
47  def fetch_petitions
  
48    @petitions = @parliament.petitions.search(params)
  
49  end
  
50
  
51  def fetch_petition
  
52    @petition = Archived::Petition.visible.find(petition_id)
  
53    @parliament = @petition.parliament
  
54
  
55    unless @parliament.archived?
  
56      redirect_to petition_url(petition_id)
  
57    end
  
58  end
  
59
  
60  def csv_filename
  
61    "#{@petitions.scope}-petitions-#{@parliament.period}.csv"
  
62  end
  
63
  
64  def redirect_to_valid_state
  
65    if state_present? && !valid_state?
  
66      redirect_to archived_petitions_url(search_params(state: :all))
  
67    end
  
68  end
  
69
  
70  def state_present?
  
71    params[:state].present?
  
72  end
  
73
  
74  def valid_state?
  
75    archived_petition_facets.include?(params[:state].to_sym)
  
76  end
  
77
  
78  def search_params(overrides = {})
  
79    params.permit(:page, :parliament, :q, :state).merge(overrides)
  
80  end
  
81
  
82  def archived_petition_facets
  
83    I18n.t :archived, scope: :"petitions.facets", default: []
  
84  end
  
85
  
86  def set_content_disposition
  
87    response.headers['Content-Disposition'] = "attachment; filename=#{csv_filename}"
  
88  end
  
89end