- @no_breadcrumb_border = true
- can_update_merge_request = can?(current_user, :update_merge_request, @merge_request)
- can_reopen_merge_request = can?(current_user, :reopen_merge_request, @merge_request)
- are_close_and_open_buttons_hidden = merge_request_button_hidden?(@merge_request, true) && merge_request_button_hidden?(@merge_request, false)
- updated_mr_header_enabled = Feature.enabled?(:updated_mr_header, @project)
- cache_key = [@project, @merge_request, can_update_merge_request, can_reopen_merge_request, are_close_and_open_buttons_hidden, current_user&.preferred_language, updated_mr_header_enabled]

= cache(cache_key, expires_in: 1.day) do
  - if @merge_request.closed_or_merged_without_fork?
    = render Pajamas::AlertComponent.new(alert_class: 'gl-mb-5',
      variant: :danger,
      dismissible: false) do |c|
      = c.body do
        = _('The source project of this merge request has been removed.')

  .detail-page-header.border-bottom-0.pt-0.pb-0{ class: "#{'gl-display-block gl-md-display-flex!' if updated_mr_header_enabled}" }
    .detail-page-header-body
      - unless updated_mr_header_enabled
        = render "shared/issuable/status_box", issuable: @merge_request
      .issuable-meta{ class: "#{'gl-display-flex' if updated_mr_header_enabled}" }
        - if updated_mr_header_enabled
          #js-issuable-header-warnings
          %h2.title.gl-my-0.gl-display-inline-block{ data: { qa_selector: 'title_content' } }
            = markdown_field(@merge_request, :title)
        - else
          #js-issuable-header-warnings
          = issuable_meta(@merge_request, @project)

      %div
        %button.gl-button.btn.btn-default.btn-icon.float-right.gl-display-block.gutter-toggle.issuable-gutter-toggle.js-sidebar-toggle{ type: 'button', class: "#{'gl-md-display-none!' if moved_mr_sidebar_enabled? } #{'gl-sm-display-none!' unless moved_mr_sidebar_enabled?}" }
          = sprite_icon('chevron-double-lg-left')

    .detail-page-header-actions.js-issuable-actions{ class: "#{'gl-align-self-start is-merge-request' if updated_mr_header_enabled}" }
      - if can_update_merge_request
        = link_to _('Edit'), edit_project_merge_request_path(@project, @merge_request), class: "gl-display-none gl-md-display-block btn gl-button btn-default btn-grouped js-issuable-edit", data: { qa_selector: "edit_button" }

      - if @merge_request.source_project
        = render 'projects/merge_requests/code_dropdown'

      - if current_user
        = render 'projects/merge_requests/close_reopen_draft_report_toggle'