# frozen_string_literal: true

# Controller for viewing a repository's file structure
class Projects::TreeController < Projects::ApplicationController
  include ExtractsPath
  include CreatesCommit
  include ActionView::Helpers::SanitizeHelper
  include RedirectsForMissingPathOnTree
  include SourcegraphDecorator

  around_action :allow_gitaly_ref_name_caching, only: [:show]

  before_action :require_non_empty_project, except: [:new, :create]
  before_action :assign_ref_vars
  before_action :set_is_ambiguous_ref, only: [:show]
  before_action :assign_dir_vars, only: [:create_dir]
  before_action :authorize_read_code!
  before_action :authorize_edit_tree!, only: [:create_dir]

  before_action do
    push_frontend_feature_flag(:inline_blame, @project)
    push_frontend_feature_flag(:explain_code_chat, current_user)
    push_frontend_feature_flag(:upgrade_pdfjs, current_user)
    push_licensed_feature(:file_locks) if @project.licensed_feature_available?(:file_locks)
  end

  feature_category :source_code_management
  urgency :low, [:show]

  def show
    return render_404 unless @commit

    @ref_type = ref_type

    if tree.entries.empty?
      if @repository.blob_at(@commit.id, @path)
        redirect_to project_blob_path(@project, File.join(@ref, @path), ref_type: @ref_type)
      elsif @path.present?
        redirect_to_tree_root_for_missing_path(@project, @ref, @path)
      end
    end
  end

  def create_dir
    return render_404 unless @commit_params.values.all?

    create_commit(
      Files::CreateDirService,
      success_notice: _("The directory has been successfully created."),
      success_path: project_tree_path(@project, File.join(@branch_name, @dir_name)),
      failure_path: project_tree_path(@project, @ref)
    )
  end

  private

  def tree
    @tree ||= @repo.tree(@commit.id, @path)
  end

  def redirect_renamed_default_branch?
    action_name == 'show'
  end

  def assign_dir_vars
    params.require(create_dir_params_attributes)

    @branch_name = permitted_params[:branch_name]

    @dir_name = File.join(@path, permitted_params[:dir_name])
    @commit_params = {
      file_path: @dir_name,
      commit_message: permitted_params[:commit_message]
    }
  end

  def permitted_params
    params.permit(*create_dir_params_attributes)
  end

  def create_dir_params_attributes
    [:branch_name, :dir_name, :commit_message]
  end
end

Projects::TreeController.prepend_mod