;; webid-oidc, implementation of the Solid specification
;; Copyright (C) 2020, 2021  Vivien Kraus

;; This program is free software: you can redistribute it and/or modify
;; it under the terms of the GNU Affero General Public License as
;; published by the Free Software Foundation, either version 3 of the
;; License, or (at your option) any later version.

;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU Affero General Public License for more details.

;; You should have received a copy of the GNU Affero General Public License
;; along with this program.  If not, see <https://www.gnu.org/licenses/>.

(use-modules (webid-oidc cache)
             (webid-oidc testing)
             ((webid-oidc parameters) #:prefix p:)
             (web uri)
             (web request)
             (web response)
             (srfi srfi-19)
             (ice-9 optargs)
             (ice-9 receive))

(with-test-environment
 "cache-revalidate"
 (lambda ()
   (define original-response
     (build-response #:headers `((etag . ("xxx" . #t))
                                 (content-type text/plain)
                                 (date . ,(time-utc->date (make-time time-utc 0 0))))))
   (define* (backend uri #:key (headers '()))
     (unless (equal? uri (string->uri "https://example.com"))
       (exit 1))
     (unless (equal? (assq-ref headers 'if-none-match)
                     '(("xxx" . #t)))
       (exit 2))
     (unless (equal? (assq-ref headers 'user-agent) "Testbed")
       (exit 3))
     (unless (eqv? (length headers) 2)
       (exit 4))
     (values
      (build-response #:code 304 #:reason-phrase "Not Modified"
                      #:headers `((date . ,(time-utc->date (make-time time-utc 0 10)))))
      #f))
   (parameterize ((p:anonymous-http-request backend))
     (receive (response response-body)
         (revalidate (string->uri "https://example.com") original-response "hello"
                     #:headers `((if-none-match . ("yyy" . #t))
                                 (if-unmodified-since . ,(time-utc->date (make-time time-utc 0 42)))
                                 (user-agent . "Testbed")))
       (unless (eqv? (response-code response) 200)
         (exit 5))
       (unless (equal? (response-headers response)
                       `((date . ,(time-utc->date (make-time time-utc 0 10)))
                         (content-type text/plain)))
         (exit 6))))))