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path: root/app/controllers/repositories/lfs_locks_api_controller.rb
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# frozen_string_literal: true

module Repositories
  class LfsLocksApiController < Repositories::GitHttpClientController
    include LfsRequest

    # added here as a part of the refactor, will be removed
    # https://gitlab.com/gitlab-org/gitlab/-/issues/328692
    delegate :deploy_token, :user, to: :authentication_result, allow_nil: true

    def create
      @result = Lfs::LockFileService.new(project, user, lfs_params).execute

      render_json(@result[:lock])
    end

    def unlock
      @result = Lfs::UnlockFileService.new(project, user, lfs_params).execute

      render_json(@result[:lock])
    end

    def index
      @result = Lfs::LocksFinderService.new(project, user, lfs_params).execute

      render_json(@result[:locks])
    end

    def verify
      @result = Lfs::LocksFinderService.new(project, user, {}).execute

      ours, theirs = split_by_owner(@result[:locks])

      render_json({ ours: ours, theirs: theirs }, false)
    end

    private

    def render_json(data, process = true)
      render json: build_payload(data, process),
            content_type: LfsRequest::CONTENT_TYPE,
            status: @result[:http_status]
    end

    def build_payload(data, process)
      data = LfsFileLockSerializer.new.represent(data) if process

      return data if @result[:status] == :success

      # When the locking failed due to an existent Lock, the existent record
      # is returned in `@result[:lock]`
      error_payload(@result[:message], @result[:lock] ? data : {})
    end

    def error_payload(message, custom_attrs = {})
      custom_attrs.merge({
        message: message,
        documentation_url: help_url
      })
    end

    def split_by_owner(locks)
      groups = locks.partition { |lock| lock.user_id == user.id }

      groups.map! do |records|
        LfsFileLockSerializer.new.represent(records, root: false)
      end
    end

    def download_request?
      params[:action] == 'index'
    end

    def upload_request?
      %w(create unlock verify).include?(params[:action])
    end

    def lfs_params
      params.permit(:id, :path, :force)
    end
  end
end