wip exercise to task implementation

app/services/proforma_service/convert_exercise_to_task.rb

@@ -0,0 +1,129 @@
+# frozen_string_literal: true
+
+require 'mimemagic'
+
+module ProformaService
+  class ConvertExerciseToTask < ServiceBase
+    def initialize(exercise: nil)
+      @exercise = exercise
+    end
+
+    def execute
+      create_task
+    end
+
+    private
+
+    def create_task
+      Proforma::Task.new(
+        {
+          title: @exercise.title,
+          description: @exercise.description,
+          internal_description: @exercise.instructions,
+
+          # proglang: proglang,
+          files: task_files,
+          # tests: tests,
+          # uuid: @exercise.uuid,
+          # parent_uuid: parent_uuid,
+          # language: primary_description.language,
+          # model_solutions: model_solutions
+        }.compact
+      )
+    end
+
+    def parent_uuid
+      @exercise.clone_relations.first&.origin&.uuid
+    end
+
+    def primary_description
+      @exercise.descriptions.select(&:primary?).first
+    end
+
+    def proglang
+      {name: @exercise.execution_environment.language, version: @exercise.execution_environment.version}
+    end
+
+    def model_solutions
+      @exercise.exercise_files.filter { |file| file.role == 'Reference Implementation' }.map do |file|
+        Proforma::ModelSolution.new(
+          id: "ms-#{file.id}",
+          files: [
+            Proforma::TaskFile.new(
+              id: file.id,
+              content: file.content,
+              filename: file.full_file_name,
+              used_by_grader: false,
+              usage_by_lms: 'display',
+              visible: 'delayed',
+              binary: false,
+              internal_description: file.role
+            )
+          ]
+        )
+      end
+    end
+
+    def tests
+      @exercise.tests.map do |test|
+        Proforma::Test.new(
+          id: test.id,
+          title: test.exercise_file.name,
+          files: test_file(test.exercise_file),
+          meta_data: {
+            'feedback-message' => test.feedback_message,
+            'testing-framework' => test.testing_framework&.name,
+            'testing-framework-version' => test.testing_framework&.version
+          }.compact
+        )
+      end
+    end
+
+    def test_file(file)
+      [Proforma::TaskFile.new(
+        id: file.id,
+        content: file.content,
+        filename: file.full_file_name,
+        used_by_grader: true,
+        visible: file.hidden ? 'no' : 'yes',
+        binary: false,
+        internal_description: file.role || 'Teacher-defined Test'
+      )]
+    end
+
+    def task_files
+      @exercise.files
+               .filter { |file| !file.role.in? %w[reference_implementation teacher_defined_test] }.map do |file|
+        task_file(file)
+      end
+    end
+
+    def task_file(file)
+      Proforma::TaskFile.new(
+        {
+          id: file.id,
+          filename: file.path.present? && file.path != '.' ? ::File.join(file.path, file.name_with_extension) : file.name_with_extension,
+          usage_by_lms: file.read_only ? 'display' : 'edit',
+          visible: file.hidden ? 'no' : 'yes',
+          internal_description: file.role || 'regular_file'
+        }.tap do |params|
+          if file.native_file.present?
+            file = ::File.new(file.native_file.file.path, 'r')
+            params[:content] = file.read
+            params[:used_by_grader] = false
+            params[:binary] = true
+            params[:mimetype] = MimeMagic.by_magic(file).type
+          else
+            params[:content] = file.content
+            params[:used_by_grader] = true
+            params[:binary] = false
+          end
+        end
+      )
+    end
+
+    def attachment_content(file)
+      Paperclip.io_adapters.for(file.attachment).read
+    end
+  end
+end

app/services/proforma_service/convert_task_to_exercise.rb

@@ -53,7 +53,7 @@ module ProformaService
         hidden: file.visible == 'no',
         name: File.basename(file.filename, '.*'),
         read_only: file.usage_by_lms != 'edit',
-        role: file.internal_description.underscore.gsub(' ', '_'),
+        role: file.internal_description,
         path: File.dirname(file.filename)
       }.tap do |params|
         if file.binary

app/services/proforma_service/export_task.rb

@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+module ProformaService
+  class ExportTask < ServiceBase
+    def initialize(exercise: nil)
+      @exercise = exercise
+    end
+
+    def execute
+      @task = ConvertExerciseToTask.call(exercise: @exercise)
+      exporter = Proforma::Exporter.new(@task)
+      exporter.perform
+    end
+  end
+end