class LettingsLogsController < LogsController
  rescue_from ActiveRecord::RecordNotFound, with: :render_not_found

  before_action :find_resource, only: %i[update show]

  before_action :session_filters, if: :current_user, only: %i[index email_csv download_csv]
  before_action :set_session_filters, if: :current_user, only: %i[index email_csv download_csv]
  before_action :log_filter_manager, if: :current_user, only: %i[index email_csv download_csv]
  before_action :authenticate_scope!, only: %i[download_csv email_csv]

  before_action :extract_bulk_upload_from_session_filters, only: [:index]
  before_action :redirect_if_bulk_upload_resolved, only: [:index]

  def index
    respond_to do |format|
      format.html do
        all_logs = current_user.lettings_logs.visible
        unpaginated_filtered_logs = filtered_logs(all_logs, search_term, @log_filter_manager.applied_filters)

        @search_term = search_term
        @pagy, @logs = pagy(unpaginated_filtered_logs)
        @searched = search_term.presence
        @total_count = all_logs.size
        @unresolved_count = all_logs.unresolved.created_by(current_user).count
        render "logs/index"
      end
    end
  end

  def create
    super { LettingsLog.new(log_params) }
  end

  def update
    if @log
      if @log.update(api_log_params)
        render json: @log, status: :ok
      else
        render json: { errors: @log.errors.messages }, status: :unprocessable_entity
      end
    else
      render_not_found_json("Log", params[:id])
    end
  end

  def show
    respond_to do |format|
      # We don't have a dedicated non-editable show view
      resolve_logs!
      format.html { edit }
      format.json do
        if @log
          render json: @log, status: :ok
        else
          render_not_found_json("Log", params[:id])
        end
      end
    end
  end

  def edit
    @log = current_user.lettings_logs.find(params[:id])

    if @log.unresolved
      redirect_to(send(@log.form.unresolved_log_path, @log))
    else
      render("logs/edit", locals: { current_user: })
    end
  end

  def destroy
    @log = LettingsLog.visible.find(params[:id])

    authorize @log

    @log.discard!

    redirect_to lettings_logs_path, notice: "Log #{@log.id} has been deleted"
  end

  def delete_confirmation
    @log = LettingsLog.visible.find(params[:lettings_log_id])

    authorize @log, :destroy?

    render "logs/delete_confirmation"
  end

  def download_csv
    unpaginated_filtered_logs = filtered_logs(current_user.lettings_logs, search_term, @log_filter_manager.applied_filters)

    render "download_csv", locals: { search_term:, count: unpaginated_filtered_logs.size, post_path: email_csv_lettings_logs_path, codes_only: codes_only_export? }
  end

  def email_csv
    all_orgs = params["organisation_select"] == "all"
    EmailCsvJob.perform_later(current_user, search_term, @log_filter_manager.applied_filters, all_orgs, nil, codes_only_export?)
    redirect_to csv_confirmation_lettings_logs_path
  end

  def csv_confirmation; end

  def update_logs
    respond_to do |format|
      format.html do
        impacted_logs = current_user.lettings_logs.unresolved.created_by(current_user)

        @pagy, @logs = pagy(impacted_logs)
        @total_count = impacted_logs.size
        render "logs/update_logs"
      end
    end
  end

private

  def log_filter_manager
    @log_filter_manager = LogsFilterManager.new(@session_filters, current_user)
  end

  def org_params
    super.merge(
      { "managing_organisation_id" => current_user.organisation.id },
    )
  end

  def authenticate_scope!
    head :unauthorized and return if codes_only_export? && !current_user.support?
  end

  def redirect_if_bulk_upload_resolved
    if @bulk_upload&.lettings? && @bulk_upload.lettings_logs.in_progress.count.zero?
      redirect_to resume_bulk_upload_lettings_result_path(@bulk_upload)
    end
  end

  def extract_bulk_upload_from_session_filters
    filter_service = FilterService.new(current_user:, session:)
    @bulk_upload = filter_service.bulk_upload
  end

  def permitted_log_params
    params.require(:lettings_log).permit(LettingsLog.editable_fields)
  end

  def find_resource
    @log = LettingsLog.visible.find_by(id: params[:id])
  end

  def post_create_redirect_url(log)
    lettings_log_url(log)
  end

  def resolve_logs!
    if @log&.unresolved && @log.location.present? && @log.scheme.present? && @log&.resolve!
      unresolved_logs_count_for_user = current_user.lettings_logs.unresolved.created_by(current_user).count
      flash.now[:notice] = helpers.flash_notice_for_resolved_logs(unresolved_logs_count_for_user)
    end
  end
end