# frozen_string_literal: true

require 'spec_helper'

RSpec.describe 'Migrations Validation', feature_category: :database do
  using RSpec::Parameterized::TableSyntax

  # The range describes the timestamps that given migration helper can be used
  let(:all_migration_classes) do
    {
      2025_04_18_17_31_00.. => Gitlab::Database::Migration[2.3],
      2023_10_10_02_15_00..2025_04_27_00_00_00 => Gitlab::Database::Migration[2.2],
      2022_12_01_02_15_00..2023_11_01_02_15_00 => Gitlab::Database::Migration[2.1],
      2022_01_26_21_06_58..2023_01_11_12_45_12 => Gitlab::Database::Migration[2.0],
      2021_09_01_15_33_24..2022_04_25_12_06_03 => Gitlab::Database::Migration[1.0],
      2021_05_31_05_39_16..2021_09_01_15_33_24 => ActiveRecord::Migration[6.1],
      ..2021_05_31_05_39_16 => ActiveRecord::Migration[6.0]
    }
  end

  where(:migration) do
    Gitlab::Database.database_base_models.flat_map do |_, model|
      if ::Gitlab.next_rails?
        model.connection_pool.migration_context.migrations
      else
        model.connection.migration_context.migrations
      end
    end.uniq
  end

  with_them do
    let(:migration_instance) { migration.send(:migration) }
    let(:migration_version_timestamp) do
      migration.version.is_a?(Integer) ? migration.version : migration.version.timestamp
    end

    let(:allowed_migration_classes) do
      all_migration_classes.select { |r, _| r.include?(migration_version_timestamp) }.values
    end

    it 'uses one of the allowed migration classes' do
      expect(allowed_migration_classes).to include(be > migration_instance.class)
    end
  end
end
