class Import::BitbucketController < Import::BaseController
  before_filter :verify_bitbucket_import_enabled
  before_filter :bitbucket_auth, except: :callback

  rescue_from OAuth::Error, with: :bitbucket_unauthorized

  def callback
    request_token = session.delete(:oauth_request_token) 
    raise "Session expired!" if request_token.nil?

    request_token.symbolize_keys!
    
    access_token = client.get_token(request_token, params[:oauth_verifier], callback_import_bitbucket_url)

    current_user.bitbucket_access_token = access_token.token
    current_user.bitbucket_access_token_secret = access_token.secret

    current_user.save
    redirect_to status_import_bitbucket_url
  end

  def status
    @repos = client.projects
    
    @already_added_projects = current_user.created_projects.where(import_type: "bitbucket")
    already_added_projects_names = @already_added_projects.pluck(:import_source)

    @repos.to_a.reject!{ |repo| already_added_projects_names.include? "#{repo["owner"]}/#{repo["slug"]}" }
  end

  def jobs
    jobs = current_user.created_projects.where(import_type: "bitbucket").to_json(only: [:id, :import_status])
    render json: jobs
  end

  def create
    @repo_id = params[:repo_id] || ""
    repo = client.project(@repo_id.gsub("___", "/"))
    @project_name = repo["slug"]

    repo_owner = repo["owner"]
    repo_owner = current_user.username if repo_owner == client.user["user"]["username"]
    @target_namespace = params[:new_namespace].presence || repo_owner
    
    namespace = get_or_create_namespace || (render and return)

    unless Gitlab::BitbucketImport::KeyAdder.new(repo, current_user).execute
      @access_denied = true
      render
      return
    end

    @project = Gitlab::BitbucketImport::ProjectCreator.new(repo, namespace, current_user).execute
  end

  private

  def client
    @client ||= Gitlab::BitbucketImport::Client.new(current_user.bitbucket_access_token, current_user.bitbucket_access_token_secret)
  end

  def verify_bitbucket_import_enabled
    not_found! unless bitbucket_import_enabled?
  end

  def bitbucket_auth
    if current_user.bitbucket_access_token.blank?
      go_to_bitbucket_for_permissions
    end
  end

  def go_to_bitbucket_for_permissions
    request_token = client.request_token(callback_import_bitbucket_url)
    session[:oauth_request_token] = request_token

    redirect_to client.authorize_url(request_token, callback_import_bitbucket_url)
  end

  def bitbucket_unauthorized
    go_to_bitbucket_for_permissions
  end
end
