1 files changed, 56 insertions, 0 deletions
diff --git a/app/models/packages/debian/file_metadatum.rb b/app/models/packages/debian/file_metadatum.rb
new file mode 100644
index 00000000000..7c9f4f5f3f1
--- /dev/null
+++ b/app/models/packages/debian/file_metadatum.rb
@@ -0,0 +1,56 @@
+# frozen_string_literal: true
+
+class Packages::Debian::FileMetadatum < ApplicationRecord
+  belongs_to :package_file, inverse_of: :debian_file_metadatum
+
+  validates :package_file, presence: true
+  validate :valid_debian_package_type
+
+  enum file_type: {
+    unknown: 1, source: 2, dsc: 3, deb: 4, udeb: 5, buildinfo: 6, changes: 7
+  }
+
+  validates :file_type, presence: true
+  validates :file_type, inclusion: { in: %w[unknown] }, if: -> { package_file&.package&.debian_incoming? }
+  validates :file_type,
+    inclusion: { in: %w[source dsc deb udeb buildinfo changes] },
+    if: -> { package_file&.package&.debian_package? }
+
+  validates :component,
+    presence: true,
+    format: { with: Gitlab::Regex.debian_component_regex },
+    if: :requires_component?
+  validates :component, absence: true, unless: :requires_component?
+
+  validates :architecture,
+    presence: true,
+    format: { with: Gitlab::Regex.debian_architecture_regex },
+    if: :requires_architecture?
+  validates :architecture, absence: true, unless: :requires_architecture?
+
+  validates :fields,
+    presence: true,
+    json_schema: { filename: "debian_fields" },
+    if: :requires_fields?
+  validates :fields, absence: true, unless: :requires_fields?
+
+  private
+
+  def valid_debian_package_type
+    return if package_file&.package&.debian?
+
+    errors.add(:package_file, _('Package type must be Debian'))
+  end
+
+  def requires_architecture?
+    deb? || udeb?
+  end
+
+  def requires_component?
+    source? || dsc? || requires_architecture? || buildinfo?
+  end
+
+  def requires_fields?
+    dsc? || requires_architecture? || buildinfo? || changes?
+  end
+end