From 3e66795ef1ff1228906239763910b051d8afcc37 Mon Sep 17 00:00:00 2001
From: Felipe Artur <fcardozo@gitlab.com>
Date: Thu, 21 Jun 2018 12:22:40 +0000
Subject: Changes tab VUE refactoring

---
 app/serializers/diff_file_entity.rb | 123 ++++++++++++++++++++++++++++++++++--
 1 file changed, 117 insertions(+), 6 deletions(-)

(limited to 'app/serializers/diff_file_entity.rb')

diff --git a/app/serializers/diff_file_entity.rb b/app/serializers/diff_file_entity.rb
index 6e68d275047..aa289a96975 100644
--- a/app/serializers/diff_file_entity.rb
+++ b/app/serializers/diff_file_entity.rb
@@ -1,25 +1,46 @@
 class DiffFileEntity < Grape::Entity
+  include RequestAwareEntity
+  include BlobHelper
+  include CommitsHelper
   include DiffHelper
   include SubmoduleHelper
   include BlobHelper
   include IconsHelper
-  include ActionView::Helpers::TagHelper
+  include TreeHelper
+  include ChecksCollaboration
+  include Gitlab::Utils::StrongMemoize
 
   expose :submodule?, as: :submodule
 
   expose :submodule_link do |diff_file|
-    submodule_links(diff_file.blob, diff_file.content_sha, diff_file.repository).first
+    memoized_submodule_links(diff_file).first
+  end
+
+  expose :submodule_tree_url do |diff_file|
+    memoized_submodule_links(diff_file).last
   end
 
-  expose :blob_path do |diff_file|
-    diff_file.blob.path
+  expose :blob, using: BlobEntity
+
+  expose :can_modify_blob do |diff_file|
+    merge_request = options[:merge_request]
+
+    if merge_request&.source_project && current_user
+      can_modify_blob?(diff_file.blob, merge_request.source_project, merge_request.source_branch)
+    else
+      false
+    end
   end
 
-  expose :blob_icon do |diff_file|
-    blob_icon(diff_file.b_mode, diff_file.file_path)
+  expose :file_hash do |diff_file|
+    Digest::SHA1.hexdigest(diff_file.file_path)
   end
 
   expose :file_path
+  expose :too_large?, as: :too_large
+  expose :collapsed?, as: :collapsed
+  expose :new_file?, as: :new_file
+
   expose :deleted_file?, as: :deleted_file
   expose :renamed_file?, as: :renamed_file
   expose :old_path
@@ -28,6 +49,36 @@ class DiffFileEntity < Grape::Entity
   expose :a_mode
   expose :b_mode
   expose :text?, as: :text
+  expose :added_lines
+  expose :removed_lines
+  expose :diff_refs
+  expose :content_sha
+  expose :stored_externally?, as: :stored_externally
+  expose :external_storage
+
+  expose :load_collapsed_diff_url, if: -> (diff_file, options) { diff_file.text? && options[:merge_request] } do |diff_file|
+    merge_request = options[:merge_request]
+    project = merge_request.target_project
+
+    next unless project
+
+    diff_for_path_namespace_project_merge_request_path(
+      namespace_id: project.namespace.to_param,
+      project_id: project.to_param,
+      id: merge_request.iid,
+      old_path: diff_file.old_path,
+      new_path: diff_file.new_path,
+      file_identifier: diff_file.file_identifier
+    )
+  end
+
+  expose :formatted_external_url, if: -> (_, options) { options[:environment] } do |diff_file|
+    options[:environment].formatted_external_url
+  end
+
+  expose :external_url, if: -> (_, options) { options[:environment] } do |diff_file|
+    options[:environment].external_url_for(diff_file.new_path, diff_file.content_sha)
+  end
 
   expose :old_path_html do |diff_file|
     old_path = mark_inline_diffs(diff_file.old_path, diff_file.new_path)
@@ -38,4 +89,64 @@ class DiffFileEntity < Grape::Entity
     _, new_path = mark_inline_diffs(diff_file.old_path, diff_file.new_path)
     new_path
   end
+
+  expose :edit_path, if: -> (_, options) { options[:merge_request] } do |diff_file|
+    merge_request = options[:merge_request]
+
+    options = merge_request.persisted? ? { from_merge_request_iid: merge_request.iid } : {}
+
+    next unless merge_request.source_project
+
+    project_edit_blob_path(merge_request.source_project,
+      tree_join(merge_request.source_branch, diff_file.new_path),
+      options)
+  end
+
+  expose :view_path, if: -> (_, options) { options[:merge_request] } do |diff_file|
+    merge_request = options[:merge_request]
+
+    project = merge_request.target_project
+
+    next unless project
+
+    project_blob_path(project, tree_join(diff_file.content_sha, diff_file.new_path))
+  end
+
+  expose :replaced_view_path, if: -> (_, options) { options[:merge_request] } do |diff_file|
+    image_diff = diff_file.rich_viewer && diff_file.rich_viewer.partial_name == 'image'
+    image_replaced = diff_file.old_content_sha && diff_file.old_content_sha != diff_file.content_sha
+
+    merge_request = options[:merge_request]
+    project = merge_request.target_project
+
+    next unless project
+
+    project_blob_path(project, tree_join(diff_file.old_content_sha, diff_file.old_path)) if image_diff && image_replaced
+  end
+
+  expose :context_lines_path, if: -> (diff_file, _) { diff_file.text? } do |diff_file|
+    project_blob_diff_path(diff_file.repository.project, tree_join(diff_file.content_sha, diff_file.file_path))
+  end
+
+  # Used for inline diffs
+  expose :highlighted_diff_lines, if: -> (diff_file, _) { diff_file.text? } do |diff_file|
+    diff_file.diff_lines_for_serializer
+  end
+
+  # Used for parallel diffs
+  expose :parallel_diff_lines, if: -> (diff_file, _) { diff_file.text? }
+
+  def current_user
+    request.current_user
+  end
+
+  def memoized_submodule_links(diff_file)
+    strong_memoize(:submodule_links) do
+      if diff_file.submodule?
+        submodule_links(diff_file.blob, diff_file.content_sha, diff_file.repository)
+      else
+        []
+      end
+    end
+  end
 end
-- 
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