feat(demarche): describe procedure prefilling (#8187)

* feat(demarche): description

Show the description of an opendata procedure (published or draft),
with help about how to prefill a dossier for this procedure.

Co-authored-by: Damien Le Thiec <damien.lethiec@gmail.com>

app/models/champ.rb

@@ -66,6 +66,7 @@ class Champ < ApplicationRecord
     :carte?,
     :stable_id,
     :mandatory?,
+    :prefillable?,
     to: :type_de_champ
 
   scope :updated_since?, -> (date) { where('champs.updated_at > ?', date) }

app/models/prefill_description.rb

@@ -0,0 +1,46 @@
+class PrefillDescription < SimpleDelegator
+  include Rails.application.routes.url_helpers
+
+  MAX_PREFILL_LINK_LENGTH = 2000
+
+  attr_reader :selected_type_de_champ_ids
+
+  def initialize(procedure)
+    super(procedure)
+    @selected_type_de_champ_ids = []
+  end
+
+  def update(attributes)
+    @selected_type_de_champ_ids = attributes[:selected_type_de_champ_ids].presence || []
+  end
+
+  def types_de_champ
+    active_revision.types_de_champ_public
+  end
+
+  def include?(type_de_champ_id)
+    selected_type_de_champ_ids.include?(type_de_champ_id.to_s)
+  end
+
+  def link_too_long?
+    prefill_link.length > MAX_PREFILL_LINK_LENGTH
+  end
+
+  def prefill_link
+    @prefill_link ||= commencer_url({ path: path }.merge(prefilled_champs_for_link))
+  end
+
+  def prefilled_champs
+    @prefilled_champs ||= types_de_champ.where(id: selected_type_de_champ_ids)
+  end
+
+  private
+
+  def prefilled_champs_for_link
+    prefilled_champs.map { |type_de_champ| ["champ_#{type_de_champ.to_typed_id}", type_de_champ.libelle] }.to_h
+  end
+
+  def prefilled_champs_for_query
+    prefilled_champs.map { |type_de_champ| "\"champ_#{type_de_champ.to_typed_id}\": \"#{type_de_champ.libelle}\"" } .join(', ')
+  end
+end

app/models/prefill_params.rb

@@ -31,16 +31,6 @@ class PrefillParams
   end
 
   class PrefillValue
-    AUTHORIZED_TYPES_DE_CHAMPS = [
-      TypeDeChamp.type_champs.fetch(:text),
-      TypeDeChamp.type_champs.fetch(:textarea),
-      TypeDeChamp.type_champs.fetch(:decimal_number),
-      TypeDeChamp.type_champs.fetch(:integer_number),
-      TypeDeChamp.type_champs.fetch(:email),
-      TypeDeChamp.type_champs.fetch(:phone),
-      TypeDeChamp.type_champs.fetch(:iban)
-    ]
-
     NEED_VALIDATION_TYPES_DE_CHAMPS = [
       TypeDeChamp.type_champs.fetch(:decimal_number),
       TypeDeChamp.type_champs.fetch(:integer_number)
@@ -54,7 +44,7 @@ class PrefillParams
     end
 
     def prefillable?
-      authorized? && valid?
+      champ.prefillable? && valid?
     end
 
     def to_h
@@ -66,10 +56,6 @@ class PrefillParams
 
     private
 
-    def authorized?
-      AUTHORIZED_TYPES_DE_CHAMPS.include?(champ.type_champ)
-    end
-
     def valid?
       return true unless NEED_VALIDATION_TYPES_DE_CHAMPS.include?(champ.type_champ)
 

app/models/procedure.rb

@@ -204,15 +204,16 @@ class Procedure < ApplicationRecord
   has_one_attached :notice
   has_one_attached :deliberation
 
-  scope :brouillons,            -> { where(aasm_state: :brouillon) }
-  scope :publiees,              -> { where(aasm_state: :publiee) }
-  scope :closes,                -> { where(aasm_state: [:close, :depubliee]) }
-  scope :opendata,              -> { where(opendata: true) }
-  scope :publiees_ou_closes,    -> { where(aasm_state: [:publiee, :close, :depubliee]) }
-  scope :by_libelle,            -> { order(libelle: :asc) }
-  scope :created_during,        -> (range) { where(created_at: range) }
-  scope :cloned_from_library,   -> { where(cloned_from_library: true) }
-  scope :declarative,           -> { where.not(declarative_with_state: nil) }
+  scope :brouillons,             -> { where(aasm_state: :brouillon) }
+  scope :publiees,               -> { where(aasm_state: :publiee) }
+  scope :publiees_ou_brouillons, -> { publiees.or(brouillons) }
+  scope :closes,                 -> { where(aasm_state: [:close, :depubliee]) }
+  scope :opendata,               -> { where(opendata: true) }
+  scope :publiees_ou_closes,     -> { where(aasm_state: [:publiee, :close, :depubliee]) }
+  scope :by_libelle,             -> { order(libelle: :asc) }
+  scope :created_during,         -> (range) { where(created_at: range) }
+  scope :cloned_from_library,    -> { where(cloned_from_library: true) }
+  scope :declarative,            -> { where.not(declarative_with_state: nil) }
 
   scope :discarded_expired, -> do
     with_discarded

app/models/type_de_champ.rb

@@ -251,6 +251,18 @@ class TypeDeChamp < ApplicationRecord
     collapsible_explanation_enabled == "1"
   end
 
+  def prefillable?
+    type_champ.in?([
+      TypeDeChamp.type_champs.fetch(:text),
+      TypeDeChamp.type_champs.fetch(:textarea),
+      TypeDeChamp.type_champs.fetch(:decimal_number),
+      TypeDeChamp.type_champs.fetch(:integer_number),
+      TypeDeChamp.type_champs.fetch(:email),
+      TypeDeChamp.type_champs.fetch(:phone),
+      TypeDeChamp.type_champs.fetch(:iban)
+    ])
+  end
+
   def fillable?
     !non_fillable?
   end