#!/bin/sh
exec guile -e main -s $0 $@
!#

;; Copyright (C) 2012-2013 Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
;;
;; This program is free software; you can redistribute it and/or modify it
;; under the terms of the GNU General Public License as published by the
;; Free Software Foundation; either version 3, 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 General Public License for more details.
;;

;; You should have received a copy of the GNU General Public License
;; along with this program; if not, write to the Free Software Foundation,
;; Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
(setlocale LC_ALL "")

(use-modules (srfi srfi-1))
(use-modules (ice-9 getopt-long) (ice-9 optargs) (ice-9 popen) (ice-9 format))
(use-modules (mu) (mu stats))

(define (n-results-or-exit query n)
  "Run QUERY, and exit 1 if the number of results != N."
  (let ((lst (mu:message-list query)))
    (if (not (= (length lst) n))
      (begin
	(simple-format (current-error-port) "Query: \"~A\"; expected ~A, got ~A\n"
	  query n (length lst))
	(exit 1)))))

(define (test-queries)
  "Test a bunch of queries (or die trying)."
  (n-results-or-exit "hello" 1)
  (n-results-or-exit "f:john fruit" 1)
  (n-results-or-exit "f:soc@example.com" 1)
  (n-results-or-exit "t:alki@example.com" 1)
  (n-results-or-exit "t:alcibiades" 1)
  (n-results-or-exit "f:soc@example.com OR f:john" 2)
  (n-results-or-exit "f:soc@example.com OR f:john OR t:edmond" 3)
  (n-results-or-exit "t:julius" 1)
  (n-results-or-exit "s:dude" 1)
  (n-results-or-exit "t:dantès" 1)
  (n-results-or-exit "file:sittingbull.jpg" 1)
  (n-results-or-exit "file:custer.jpg" 1)
  (n-results-or-exit "file:custer.*" 1)
  (n-results-or-exit "j:sit*" 1)
  (n-results-or-exit "mime:image/jpeg" 1)
  (n-results-or-exit "mime:text/plain" 14)
  (n-results-or-exit "y:text*" 14)
  (n-results-or-exit "y:image*" 1)
  (n-results-or-exit "mime:message/rfc822" 2))

(define (error-exit msg . args)
  "Print error and exit."
  (let ((msg (apply format #f msg args)))
    (simple-format (current-error-port) "*ERROR*: ~A\n" msg)
    (exit 1)))

(define (str-equal-or-exit got exp)
  "S1 == S2 or exit 1."
  ;; (format #t "'~A' <=> '~A'\n" s1 s2)
  (if (not (string= exp got))
    (error-exit "Expected \"~A\", got \"~A\"\n" exp got)))

(define (test-message)
  "Test functions for a particular message."

  (let ((msg (car (mu:message-list "hello"))))
    (str-equal-or-exit (mu:subject msg) "Fwd: rfc822")
    (str-equal-or-exit (mu:to msg) "martin")
    (str-equal-or-exit (mu:from msg) "foobar <foo@example.com>")
    (str-equal-or-exit (mu:header msg "X-Mailer") "Ximian Evolution 1.4.5")

    (if (not (equal? (mu:priority msg) mu:prio:normal))
      (error-exit "Expected ~A, got ~A"  (mu:priority msg) mu:prio:normal)))

  (let ((msg (car (mu:message-list "atoms"))))
    (str-equal-or-exit (mu:subject msg) "atoms")
    (str-equal-or-exit (mu:to      msg) "Democritus <demo@example.com>")
    (str-equal-or-exit (mu:from    msg) "Richard P. Feynman <rpf@example.com>")
    ;;(str-equal-or-exit (mu:header msg "Content-transfer-encoding") "7BIT")

    (if (not (equal? (mu:priority msg) mu:prio:high))
      (error-exit "Expected ~a, got ~a"  (mu:priority msg) mu:prio:high))))

(define (num-equal-or-exit got exp)
  "S1 == S2 or exit 1."
  ;; (format #t "'~A' <=> '~A'\n" s1 s2)
  (if (not (= exp got))
    (error-exit "Expected \"~S\", got \"~S\"\n" exp got)))

(define (test-stats)
  "Test statistical functions."
  ;; average
  (num-equal-or-exit (mu:average mu:size) 82601/14)
  (num-equal-or-exit (floor (mu:stddev mu:size)) 12637.0)
  (num-equal-or-exit (mu:max mu:size) 46308)
  (num-equal-or-exit (mu:min mu:size) 111))

(define (main args)
  (let* ((optionspec  '((muhome  (value #t))
			 (test (value #t))))
	  (options (getopt-long args optionspec))
	  (muhome (option-ref options 'muhome #f))
	  (test   (option-ref options 'test #f)))

    (mu:initialize muhome)

    (if test
      (cond
	((string= test "queries") (test-queries))
	((string= test "message") (test-message))
	((string= test "stats")   (test-stats))
	(#t (exit 1))))))


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