feat(API): cast type de champ EJ in a dedicated graphql type

app/graphql/api/v2/schema.rb

@@ -74,6 +74,7 @@ class API::V2::Schema < GraphQL::Schema
     Types::Champs::SiretChampType,
     Types::Champs::TextChampType,
     Types::Champs::TitreIdentiteChampType,
+    Types::Champs::EngagementJuridiqueChampType,
     Types::GeoAreas::ParcelleCadastraleType,
     Types::GeoAreas::SelectionUtilisateurType,
     Types::PersonneMoraleType,
@@ -118,7 +119,7 @@ class API::V2::Schema < GraphQL::Schema
     Types::Champs::Descriptor::TitreIdentiteChampDescriptorType,
     Types::Champs::Descriptor::YesNoChampDescriptorType,
     Types::Champs::Descriptor::ExpressionReguliereChampDescriptorType,
-Types::Champs::Descriptor::EngagementJuridiqueChampDescriptorType
+    Types::Champs::Descriptor::EngagementJuridiqueChampDescriptorType
 
   def self.unauthorized_object(error)
     # Add a top-level error to the response instead of returning nil:

app/graphql/api/v2/stored_query.rb

@@ -574,6 +574,11 @@ class API::V2::StoredQuery
         ...RNFFragment
       }
     }
+    ... on EngagementJuridiqueChamp {
+      engagementJuridique {
+        ...EngagementJuridiqueFragment
+      }
+    }
   }
 
   fragment PersonneMoraleFragment on PersonneMorale {
@@ -684,6 +689,11 @@ class API::V2::StoredQuery
     }
   }
 
+  fragment EngagementJuridiqueFragment on EngagementJuridique {
+    montantEngage
+    montantPaye
+  }
+
   fragment PageInfoFragment on PageInfo {
     hasPreviousPage
     hasNextPage

app/graphql/schema.graphql

@@ -2203,6 +2203,35 @@ type EmailChampDescriptor implements ChampDescriptor {
   type: TypeDeChamp! @deprecated(reason: "Utilisez le champ `__typename` à la place.")
 }
 
+type EngagementJuridique {
+  montantEngage: String
+  montantPaye: String
+}
+
+type EngagementJuridiqueChamp implements Champ {
+  """
+  Montant engagé et payé de l'EJ.
+  """
+  engagementJuridique: EngagementJuridique
+  id: ID!
+
+  """
+  Libellé du champ.
+  """
+  label: String!
+  prefilled: Boolean!
+
+  """
+  La valeur du champ sous forme texte.
+  """
+  stringValue: String
+
+  """
+  Date de dernière modification du champ.
+  """
+  updatedAt: ISO8601DateTime!
+}
+
 type EngagementJuridiqueChampDescriptor implements ChampDescriptor {
   """
   Description des champs d’un bloc répétable.

app/graphql/types/champ_type.rb

@@ -77,6 +77,8 @@ module Types
           Types::Champs::EpciChampType
         when ::Champs::RNFChamp
           Types::Champs::RNFChampType
+        when ::Champs::EngagementJuridiqueChamp
+          Types::Champs::EngagementJuridiqueChampType
         else
           Types::Champs::TextChampType
         end

app/graphql/types/champs/engagement_juridique_champ_type.rb

@@ -0,0 +1,28 @@
+module Types::Champs
+  class EngagementJuridiqueChampType < Types::BaseObject
+    implements Types::ChampType
+
+    class EngagementJuridiqueType < Types::BaseObject
+      field :montant_engage, String, null: true
+      field :montant_paye, String, null: true
+
+      def numero
+        object.value
+      end
+
+      def montant_engage
+        "NotYetImplemented"
+      end
+
+      def montant_paye
+        "NotYetImplemented"
+      end
+    end
+
+    field :engagement_juridique, EngagementJuridiqueType, "Montant engagé et payé de l'EJ.", null: true
+
+    def engagement_juridique
+      object if object.value.present?
+    end
+  end
+end

spec/graphql/dossier_spec.rb

@@ -75,6 +75,17 @@ RSpec.describe Types::DossierType, type: :graphql do
     end
   end
 
+  describe 'dossier with annotations' do
+    let(:procedure) { create(:procedure, :published, types_de_champ_private: [{ type: :engagement_juridique }]) }
+    let(:dossier) { create(:dossier, :accepte, :with_populated_champs, procedure: procedure) }
+    let(:query) { DOSSIER_WITH_ANNOTATIONS_QUERY }
+    let(:variables) { { number: dossier.id } }
+
+    it do
+      expect(data[:dossier][:annotations][0][:__typename]).to eq "EngagementJuridiqueChamp"
+    end
+  end
+
   describe 'dossier with selected champ' do
     let(:procedure) { create(:procedure, types_de_champ_public: [{ libelle: 'yolo' }, { libelle: 'toto' }]) }
     let(:dossier) { create(:dossier, :en_construction, :with_populated_champs, procedure:) }
@@ -324,7 +335,35 @@ RSpec.describe Types::DossierType, type: :graphql do
     }
   }
   GRAPHQL
+  DOSSIER_WITH_ANNOTATIONS_QUERY = <<-GRAPHQL
+  query($number: Int!) {
+    dossier(number: $number) {
+      id
+      number
+      revision {
+        champDescriptors {
+          id
+          label
+        }
+      }
+      annotations {
+        id
+        label
+        __typename
+        ... on EngagementJuridiqueChamp {
+          engagementJuridique {
+            ...EngagementJuridiqueFragment
+          }
+        }
+      }
+    }
+  }
+  fragment EngagementJuridiqueFragment on EngagementJuridique {
+    montantEngage
+    montantPaye
+  }
 
+  GRAPHQL
   DOSSIER_WITH_CHAMPS_QUERY = <<-GRAPHQL
   query($number: Int!) {
     dossier(number: $number) {