;; 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)
             (web uri)
             (web request)
             (web response)
             (srfi srfi-19)
             (ice-9 optargs)
             (ice-9 receive))

(with-test-environment
 "cache-valid"
 (lambda ()
   (define response-not-stored
     (build-response #:headers `((cache-control . (no-store)))))
   (define response-not-cached
     (build-response #:headers `((cache-control . (no-cache)))))
   (define response-with-expires
     (build-response #:headers `((expires . ,(time-utc->date (make-time time-utc 0 120))))))
   (define response-with-overriden-expires
     (build-response #:headers `((expires . ,(time-utc->date (make-time time-utc 0 120)))
                                 (cache-control . (private (max-age . 100)))
                                 (date . ,(time-utc->date (make-time time-utc 0 10))))))
   (define response-without-max-age
     (build-response #:headers `((cache-control . (private))
                                 (date . ,(time-utc->date (make-time time-utc 0 10))))))
   (define response-with-heuristic-max-age
     (build-response #:headers `((cache-control . (private))
                                 (last-modified . ,(time-utc->date (make-time time-utc 0 10)))
                                 (date . ,(time-utc->date (make-time time-utc 0 30))))))
   ;; response-not-stored: never valid.
   (when (valid? response-not-stored #:current-time 0)
     (exit 1))
   (when (valid? response-not-stored #:current-time 100)
     (exit 2))
   ;; response-not-cached: never valid.
   (when (valid? response-not-cached #:current-time 0)
     (exit 3))
   (when (valid? response-not-cached #:current-time 100)
     (exit 4))
   ;; response-with-expires: valid at 110, invalid at 130.
   (unless (valid? response-with-expires #:current-time 110)
     (exit 5))
   (when (valid? response-with-expires #:current-time 130)
     (exit 6))
   ;; response-with-overriden-expires: valid at 105, invalid at 115
   (unless (valid? response-with-overriden-expires #:current-time 105)
     (exit 7))
   (when (valid? response-with-overriden-expires #:current-time 115)
     (exit 8))
   ;; response-without-max-age: not valid, cannot get a heuristic
   (when (valid? response-without-max-age #:current-time 10)
     (exit 9))
   ;; response-with-heuristic-max-age: the heuristic max age is 2, so
   ;; it is valid at 31 but not at 33.
   (unless (valid? response-with-heuristic-max-age #:current-time 31)
     (exit 10))
   (when (valid? response-with-heuristic-max-age #:current-time 33)
     (exit 11))))