# frozen_string_literal: true

module Diffs
  class OverflowWarningComponent < BaseComponent
    # Skipping coverage because of https://gitlab.com/gitlab-org/gitlab/-/issues/357381
    #
    # This is fully tested by the output in the view part of this component,
    # but undercoverage doesn't understand the relationship between the two parts.
    #
    # :nocov:
    def initialize(diffs:, diff_files:, project:, commit: nil, merge_request: nil)
      @diffs = diffs
      @diff_files = diff_files
      @project = project
      @commit = commit
      @merge_request = merge_request
    end

    def message
      html_escape(message_text) % {
        display_size: @diff_files.size,
        real_size: @diffs.real_size,
        strong_open: '<strong>'.html_safe,
        strong_close: '</strong>'.html_safe
      }
    end

    def diff_link
      text = _("Plain diff")

      if commit?
        link_to text, project_commit_path(@project, @commit, format: :diff), class: button_classes
      elsif merge_request?
        link_to text, merge_request_path(@merge_request, format: :diff), class: button_classes
      end
    end

    def patch_link
      text = _("Email patch")

      if commit?
        link_to text, project_commit_path(@project, @commit, format: :patch), class: button_classes
      elsif merge_request?
        link_to text, merge_request_path(@merge_request, format: :patch), class: button_classes
      end
    end

    private

    def commit?
      current_controller?(:commit) &&
        @commit.present?
    end

    def merge_request?
      current_controller?("projects/merge_requests/diffs") &&
        @merge_request.present? &&
        @merge_request.persisted?
    end

    def message_text
      _(
        "To preserve performance only %{strong_open}%{display_size} " \
        "of %{real_size}%{strong_close} files are displayed."
      )
    end

    def button_classes
      "btn gl-alert-action btn-default gl-button btn-default-secondary"
    end
    # :nocov:
  end
end