Bump version to 1.19-dev.

CHANGELOG.md

@@ -1,6 +1,14 @@
 ChangeLog
 =========
 
+1.18 - released 2025-01-06
+--------------------------
+
+* fix typo in members-print
+* create LaTeX source of general meeting attendance sheet
+* add expected income, cash flow and average age to stats
+* add QR code payment in CZK on members' payments pages'
+
 1.17 - released 2024-10-01
 --------------------------
 

doc/hackerbase.1

@@ -273,10 +273,6 @@ Specify member by nickname.
 .B \-destroyed
 Show destroyed members in \fB-fees\fR action as well.
 
-.TP
-.B \-ml-all
-Load all mailman list memberships to show them in members info.
-
 .SH "FILES"
 
 All the information about members is stored in in members file in the

src/Makefile

@@ -42,7 +42,9 @@ HACKERBASE-DEPS=hackerbase.scm cal-month.import.scm			\
 	tests.import.scm notifications.import.scm logging.import.scm	\
 	progress.import.scm cal-period.import.scm			\
 	util-stdout.import.scm export-web-static.import.scm		\
-	dokuwiki.import.scm mailinglist.import.scm
+	dokuwiki.import.scm mailinglist.import.scm			\
+	export-sheet.import.scm mbase-query.import.scm			\
+	qr-payment.import.scm
 
 HACKERBASE-OBJS=hackerbase.o testing.o listing.o cal-month.o		\
 	 cal-period.o ansi.o util-bst-ldict.o command-line.o mbase.o	\
@@ -58,9 +60,9 @@ HACKERBASE-OBJS=hackerbase.o testing.o listing.o cal-month.o		\
 	 table-style.o sgr-state.o util-utf8.o sgr-cell.o		\
 	 template-list-expander.o box-drawing.o export-web-static.o	\
 	 util-dir.o dokuwiki.o racket-kwargs.o duck.o util-bst.o	\
-	 util-bst-bdict.o util-bst-ldict.o util-bst-lset.o mailman2.o	\
+	 util-bst-bdict.o util-bst-ldict.o util-bst-lset.o		\
 	 mailman-common.o mailman3.o mailman3-sql.o tiocgwinsz.o	\
-	 mailinglist.o
+	 mailinglist.o export-sheet.o mbase-query.o qr-payment.o
 
 GENDOC-SOURCES=gendoc.scm duck-extract.import.scm			\
 	util-time.import.scm util-csv.import.scm util-git.import.scm	\
@@ -258,13 +260,6 @@ ENVIRONMENT-SOURCES=environment.scm ansi.import.scm
 environment.o: environment.import.scm
 environment.import.scm: $(ENVIRONMENT-SOURCES)
 
-MAILMAN2-SOURCES=mailman2.scm util-bst-lset.import.scm	\
-	util-io.import.scm mailman-common.import.scm	\
-	configuration.import.scm
-
-mailman2.o: mailman2.import.scm
-mailman2.import.scm: $(MAILMAN2-SOURCES)
-
 UTIL-TIME-SOURCES=util-time.scm duck.import.scm
 
 util-time.o: util-time.import.scm
@@ -473,7 +468,8 @@ box-drawing.import.scm: $(BOX-DRAWING-SOURCES)
 EXPORT-WEB-STATIC-SOURCES=export-web-static.scm brmember.import.scm	\
 	util-dir.import.scm mbase.import.scm				\
 	members-payments.import.scm cal-day.import.scm			\
-	util-git.import.scm configuration.import.scm texts.import.scm
+	util-git.import.scm configuration.import.scm texts.import.scm	\
+	members-fees.import.scm qr-payment.import.scm
 
 export-web-static.o: export-web-static.import.scm
 export-web-static.import.scm: $(EXPORT-WEB-STATIC-SOURCES)
@@ -524,10 +520,9 @@ UTIL-BST-LSET-SOURCES=util-bst-lset.scm util-bst.import.scm	\
 util-bst-lset.o: util-bst-lset.import.scm
 util-bst-lset.import.scm: $(UTIL-BST-LSET-SOURCES)
 
-MAILMAN-SOURCES=mailman.scm mailman2.import.scm			\
+MAILMAN-SOURCES=mailman.scm mailman-common.import.scm		\
-	mailman-common.import.scm util-bst-lset.import.scm	\
+	util-bst-lset.import.scm configuration.import.scm	\
-	configuration.import.scm mailman3.import.scm		\
+	mailman3.import.scm progress.import.scm
-	progress.import.scm
 
 mailman.o: mailman.import.scm
 mailman.import.scm: $(MAILMAN-SOURCES)
@@ -559,3 +554,25 @@ MAILINGLIST-SOURCES=mailinglist.scm racket-kwargs.import.scm		\
 
 mailinglist.o: mailinglist.import.scm
 mailinglist.import.scm: $(MAILINGLIST-SOURCES)
+
+EXPORT-SHEET-SOURCES=export-sheet.scm mbase.import.scm		\
+	brmember.import.scm brmember-format.import.scm		\
+	util-bst-ldict.import.scm members-payments.import.scm	\
+	util-format.import.scm members-fees.import.scm		\
+	cal-period.import.scm
+
+export-sheet.o: export-sheet.import.scm
+export-sheet.import.scm: $(EXPORT-SHEET-SOURCES)
+
+MBASE-QUERY-SOURCES=mbase-query.scm mbase.import.scm			\
+	brmember.import.scm util-bst-ldict.scm primes.import.scm	\
+	cal-period.import.scm cal-month.import.scm			\
+	members-fees.import.scm members-payments.import.scm
+
+mbase-query.o: mbase-query.import.scm
+mbase-query.import.scm: $(MBASE-QUERY-SOURCES)
+
+QR-PAYMENT-SOURCES=qr-payment.scm util-io.import.scm
+
+qr-payment.o: qr-payment.import.scm
+qr-payment.import.scm: $(QR-PAYMENT-SOURCES)

src/brmember.scm

@@ -87,6 +87,8 @@
 
   brmember-spec-fee
 
+  brmember-age
+
   brmember-tests!
   )
 
@@ -492,6 +494,18 @@
 	       #f))
 	 #f)))
 
+ (define (brmember-age mr)
+   (let ((born (brmember-info mr 'born #f)))
+     (if born
+	 (let ((lst (string-split born "-")))
+	   (if (null? lst)
+	       #f
+	       (let ((y (string->number (car lst))))
+		 (if y		     
+		     (- (current-year) y)
+		     #f))))
+	 #f)))
+
  ;; Self-tests
  (define (brmember-tests!)
    (run-tests

src/cal-period.scm

@@ -28,6 +28,7 @@
 (module
     cal-period
     (
+     current-year
      *current-month*
      *current-day*
 
@@ -85,6 +86,9 @@
   ;; Type tag
   (define TAG-CAL-PERIOD (make-tag CAL-PERIOD))
 
+  (define (current-year)
+    (cal-month-year (*current-month*)))
+
   ;; Current month - if changed, we get the actual state for given month.
   (define *current-month*
     (make-parameter

src/export-sheet.scm

@@ -0,0 +1,226 @@
+;;
+;; export-sheet.scm
+;;
+;; Export attendance sheet as MarkDown document.
+;;
+;; ISC License
+;;
+;; Copyright 2024 Brmlab, z.s.
+;; Dominik Pantůček <dominik.pantucek@trustica.cz>
+;;
+;; Permission to use, copy, modify, and/or distribute this software
+;; for any purpose with or without fee is hereby granted, provided
+;; that the above copyright notice and this permission notice appear
+;; in all copies.
+;; 
+;; THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+;; WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+;; WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+;; AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
+;; CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+;; OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+;; NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+;; CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+;;
+
+(declare (unit export-sheet))
+
+(module
+ export-sheet
+ (
+  print-attendance-sheet
+  )
+
+ (import scheme
+	 (chicken base)
+	 (chicken string)
+	 (chicken format)
+	 (chicken sort)
+	 srfi-1
+	 mbase
+	 brmember
+	 brmember-format
+	 util-bst-ldict
+	 members-payments
+	 util-format
+	 members-fees
+	 cal-period
+	 cal-day)
+
+ (define (print-attendance-sheet MB number)
+   (print "\\documentclass{article}")
+   (print "\\usepackage{fancyhdr}")
+   (print "\\usepackage{longtable}")
+   (print "\\usepackage{lastpage}")
+   (print "\\usepackage[top=3cm,left=1cm,right=2cm,bottom=3cm]{geometry}")
+   (print "\\lhead{}")
+   (print
+    (format
+     "\\chead{Prezenční listina ~A. Valné Hromady brmlab z.s. konané ~A. ~A. ~A v sídle spolku}"
+     number  
+     (cal-day-day (*current-day*))
+     (cal-day-month (*current-day*))
+     (cal-day-year (*current-day*))
+     ))
+   (print "\\rhead{}")
+   (print "\\renewcommand{\\headrulewidth}{0pt}")
+   (print "\\lfoot{}")
+   (print "\\cfoot{Strana \\thepage{} ze \\pageref*{LastPage}}")
+   (print "\\rfoot{}")   
+   (print "\\pagestyle{fancy}")
+   (print "\\begin{document}")
+   (print "\\begin{center}")
+   (newline)
+   (print "\\vskip1em")
+   (newline)
+   (define colnames
+     '((id) Nick "Jméno" "Příjmení" (Fee) (Bilance)
+       ("\\raisebox{2pt}{\\begin{minipage}{15mm}\\begin{center}Aktivní\\\\Měsíce\\end{center}\\end{minipage}}")
+       ((Hlas?)) Podpis))
+   (print "\\renewcommand\\arraystretch{2.1}")
+   (print
+    (format
+     "\\begin{longtable}{|~A|}"
+     (string-intersperse
+      (map
+       (lambda (x)
+	 (if (list? x)
+	     (if (list? (car x))
+		 "c"
+		 "r")
+	     "l"))
+       colnames)
+      "|")))
+   (print "\\hline")
+   (print
+    (string-intersperse
+     (map
+      (lambda (x)
+	(format
+	 "\\textbf{~A}"
+	 (if (symbol? x)
+	     (symbol->string x)
+	     (if (string? x)
+		 x
+		 (if (string? (car x))
+		     (car x)
+		     (if (list? (car x))
+			 (symbol->string (caar x))
+			 (symbol->string (car x))))))))
+      colnames)
+     "&")
+    "\\\\")
+   (print "\\hline")
+   (print "\\endhead")
+   (define valid-voters 0)
+   (define ok-balances 0)
+   (define ok-actives 0)
+   (let loop ((mrs (sort
+		    (find-members-by-predicate
+		     MB (lambda (mr)
+			  (brmember-active? mr)))
+		    (lambda (a b)
+		      (string<? (brmember-nick a)
+				(brmember-nick b))))))
+     (when (not (null? mrs))
+       (let* ((mr (car mrs))
+	      (info (ldict-ref mr 'info))
+	      (name (ldict-ref info 'name "ERROR"))
+	      (name* (string-translate*
+		      name
+		      '(("_" . " "))))
+	      (namel (string-split name*))
+	      (sname (car (reverse namel)))
+	      (fname
+	       (string-intersperse
+		(reverse
+		 (cdr
+		  (reverse namel)))
+		" "))
+	      (cal (member-calendar mr))
+	      (rcal (reverse cal))
+	      (rcal12
+	       (if (> (length rcal) 12)
+		   (take rcal 12)
+		   rcal))
+	      (acal12 (map cadr rcal12))
+	      (acal12* (map (lambda (f) (if (memq 'active f) 1 0)) acal12))
+	      (numactive (foldl + 0 acal12*))
+	      (spec-fee (brmember-spec-fee mr))
+	      (current-fee (if spec-fee
+			       spec-fee
+			       (member-calendar-entry->fee
+				(list (*current-month*)
+				      (brmember-flags mr)
+				      spec-fee))))
+	      (balance-ok? (>= (member-total-balance mr)
+			      (- current-fee)))
+	      (active-ok? (>= numactive 9))
+	      (vote-ok? (and balance-ok? active-ok?))
+	      )
+	 (when balance-ok?
+	   (set! ok-balances (+ ok-balances 1)))
+	 (when active-ok?
+	   (set! ok-actives (+ ok-actives 1)))
+	 (when vote-ok?
+	   (set! valid-voters (+ valid-voters 1)))
+	 (print
+	  (brmember-id mr)
+	  " & "
+	  (string-translate*
+	   (brmember-nick mr)
+	   '(("_" . "\\_")))
+	  " & \\small "
+	  fname
+	  " & \\small "
+	  sname
+	  " & "
+	  current-fee
+	  " & "
+	  "\\raisebox{2pt}{\\begin{minipage}{15mm}\\begin{flushright}"
+	  (format-amount-tex
+	   (member-total-balance mr))
+	  "\\\\"
+	  (if balance-ok?
+	      "Bez~dluhu"
+	      "---~~~~~~")
+	  "\\end{flushright}\\end{minipage}}"
+	  " & "
+	  ;(if balance-ok?
+	  ;    "Y"
+	  ;    "--")
+	  ;" & "
+	  "\\raisebox{2pt}{\\begin{minipage}{12mm}\\begin{center}"
+	  numactive "/" 12
+	  "\\\\"
+	  (if active-ok?
+	      "Splněno"
+	      "\\phantom{Sp}---\\phantom{Sp}")
+	  "\\end{center}\\end{minipage}}"
+	  " & "
+	  ;(if active-ok?
+	  ;    "Y"
+	  ;    "--")
+	  ;" & "
+	  (if vote-ok?
+	      "Ano"
+	      "--")
+	  " & "
+	  "~\\hskip28mm~"
+	  " \\\\")
+	 (print "\\hline")
+	 (loop (cdr mrs)))))
+   (print "\\end{longtable}")
+   (print "\\end{center}")
+   (print "\\end{document}")
+   (print "% valid-voters = " valid-voters)
+   (print "% valid-balances = " ok-balances)
+   (print "% valid-actives = " ok-actives)
+   )
+
+ (define (format-amount-tex amt)
+   (string-translate*
+    (format-amount amt)
+    '(("--" . "--{}--"))))
+
+ )

src/export-web-static.scm

@@ -45,7 +45,9 @@
 	 util-git
 	 configuration
 	 texts
-	 logging)
+	 logging
+	 qr-payment
+	 members-fees)
 
  ;; HTML entities
  (define (sanitize-html str)
@@ -88,6 +90,8 @@
      (print "dd+dt,dd+dt+dd{border-top:1px solid #8cacbb}")
      (print "dd{grid-column:2/3;font-weight:bold;margin:0px;padding-left:16px}")
      (print "footer{background:#dee7ec;border-top:1px solid #8cacbb;padding:16px}")
+     (print ".qr svg{width:100%;height:auto;max-width:10cm}")
+     (print ".qr{text-align: center}")
      (print "</style>")
      (print "</head>")
      (print "<body>")
@@ -109,6 +113,13 @@
      (print "<dt>Account for Payments<br>(Účet pro platbu příspěvků)</dt><dd>CZK: 2500079551/2010<br>EUR:  CZ93 2010 0000 0021 0007 9552</dd>")
      (print "</dl>")
      (print "</div>")
+     (print "<div class=\"bi qr\">")
+     (let ((fee (member-calendar-entry->fee
+		 (make-member-calendar-entry mr))))
+       (print "<h2>Payment of membership fee " fee " CZK<br/>(Platba členského příspěvku)</h2>")
+       (print (make-brmlab-qrp-svg-string
+	       fee "CZK" (brmember-id mr))))
+     (print "</div>")
      (print "<div class=\"bi\">")
      (print "<h2>Payments History</h2>")
      (print "<table>")

src/hackerbase.scm

@@ -51,7 +51,9 @@
 	dokuwiki
 	racket-kwargs
 	util-string
-	mailinglist)
+	mailinglist
+	export-sheet
+	mbase-query)
 
 ;; Command-line options and configurable parameters
 (define -needs-bank- (make-parameter #f))
@@ -66,6 +68,7 @@
 (define -show-only-active- (make-parameter #f))
 (define -notify-months- (make-parameter 1))
 (define -send-emails- (make-parameter #f))
+(define -number- (make-parameter #f))
 
 ;; Arguments parsing
 (command-line
@@ -181,7 +184,14 @@
 	  (-action- 'genweb))
  (-stats (file:gnuplot-data) "Get stats for all months"
 	 (-action- 'print-stats)
+	 (-needs-bank- #t)
 	 (-fname- file:gnuplot-data))
+ (-sheet (filename gmnum) "Generate attendance sheet for given GM number"
+	 (-needs-bank- #t)
+	 (-fname- filename)
+	 (-number- gmnum)
+	 (-action- 'gen-sheet))
+	 
  ""
  "Mailman Actions:"
  (-mlsync () "Synchronize internal ML"
@@ -354,6 +364,10 @@
   ((genweb)
    (log-info "Generating static web files")
    (gen-html-members MB (-web-dir-)))
+  ((gen-sheet)
+   (log-info "Generating attendance sheet")
+   (parameterize ((current-output-port (open-output-file (-fname-))))
+     (print-attendance-sheet MB (-number-))))
   ((edit)
    (if mr
        (let ()

src/mailman.scm

@@ -49,7 +49,6 @@
  (import scheme
 	 (chicken base)
 	 (chicken module)
-	 mailman2
 	 mailman-common
 	 util-bst-lset
 	 configuration
@@ -59,24 +58,17 @@
  ;; Syntax for simplifying export of case-version procedures
  (define-syntax define-mailman-proc
    (syntax-rules ()
-     ((_ name proc2)
+     ((_ name proc3)
       (begin
 	(export name)
 	(define (name . args)
 	  (case (*mailman-version*)
-	    ((2) (apply proc2 args))))))
-     ((_ name proc2 proc3)
-      (begin
-	(export name)
-	(define (name . args)
-	  (case (*mailman-version*)
-	    ((2) (apply proc2 args))
 	    ((3) (apply proc3 args))))))))
 
  (define-mailman-proc list-mailman-lists
-   list-mailman2-lists list-mailman3-lists)
+   list-mailman3-lists)
  (define-mailman-proc list-mailman-list-members
-   list-mailman2-list-members list-mailman3-list-members)
+   list-mailman3-list-members)
 
   ;; Loads a single mailman list as mailman structure, if
  ;; unsuccessfull, returns only a list with ML name and no member
@@ -112,9 +104,9 @@
    (assoc name lsts))
 
  (define-mailman-proc add-email-to-mailman-list
-   add-email-to-mailman2-list add-email-to-mailman3-list)
+   add-email-to-mailman3-list)
  (define-mailman-proc remove-email-from-mailman-list
-   remove-email-from-mailman2-list remove-email-from-mailman3-list)
+   remove-email-from-mailman3-list)
 
  ;; Ensures given email is in given ML
  (define (mailman-ensure-member ml email)

src/mailman2.scm

@@ -1,104 +0,0 @@
-;;
-;; mailman2.scm
-;;
-;; Mailman management interface - Mailman version 2.x support
-;;
-;; ISC License
-;;
-;; Copyright 2023 Brmlab, z.s.
-;; Dominik Pantůček <dominik.pantucek@trustica.cz>
-;;
-;; Permission to use, copy, modify, and/or distribute this software
-;; for any purpose with or without fee is hereby granted, provided
-;; that the above copyright notice and this permission notice appear
-;; in all copies.
-;; 
-;; THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
-;; WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
-;; WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
-;; AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
-;; CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
-;; OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
-;; NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
-;; CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-;;
-
-(declare (unit mailman2))
-
-(module
- mailman2
- (
-  list-mailman2-lists
-  list-mailman2-list-members
-  
-  add-email-to-mailman2-list
-  remove-email-from-mailman2-list
-  )
-
- (import scheme
-	 (chicken base)
-	 (chicken pathname)
-	 (chicken string)
-	 (chicken sort)
-	 (chicken format)
-	 srfi-1
-	 util-bst-lset
-	 util-io
-	 mailman-common
-	 configuration)
-
- ;; Returns full path to given mailman binary
- (define (mailman-bin bin)
-   (make-pathname (*mailman2-bin*) bin))
-
- ;; Mailman-specific process output lines capture
- (define (get-mailman-output-lines bin . args)
-   (apply
-    get-process-output-lines
-    (mailman-bin bin)
-    args))
-
- ;; Sends all lines to the process
- (define (mailman-send/recv bin args . lines)
-   (apply
-    process-send/recv
-    (mailman-bin bin)
-    args
-    lines))
-    
- ;; Returns the list of available lists
- (define (list-mailman2-lists)
-   (get-mailman-output-lines "list_lists" "-b"))
-
- ;; Returns the list of members of given list
- (define (list-mailman2-list-members lst)
-   (sort
-    (get-mailman-output-lines "list_members" lst)
-    string-ci<?))
-
- ;; Adds given email to given listname
- (define (add-email-to-mailman2-list listname email)
-   (print "Add " email " to " listname ".")
-   (let ((result
-	  (mailman-send/recv
-	   "add_members"
-	   (list "-r" "-" listname)
-	   email)))
-     (let loop ((lines result))
-       (when (not (null? lines))
-	 (print " | " (car lines))
-	 (loop (cdr lines))))))
-
- ;; Removes given email from given listname
- (define (remove-email-from-mailman2-list listname email)
-   (print "Remove " email " from " listname ".")
-   (let ((result
-	  (get-mailman-output-lines
-	   "remove_members" listname
-	   (sprintf "~A" email))))
-     (let loop ((lines result))
-       (when (not (null? lines))
-	 (print " | " (car lines))
-	 (loop (cdr lines))))))
-
- )

src/mbase-query.scm

@@ -0,0 +1,123 @@
+;;
+;; mbase-query.scm
+;;
+;; Queries of various mbase derived attributes.
+;;
+;; ISC License
+;;
+;; Copyright 2023-2025 Brmlab, z.s.
+;; Dominik Pantůček <dominik.pantucek@trustica.cz>
+;;
+;; Permission to use, copy, modify, and/or distribute this software
+;; for any purpose with or without fee is hereby granted, provided
+;; that the above copyright notice and this permission notice appear
+;; in all copies.
+;; 
+;; THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+;; WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+;; WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+;; AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
+;; CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+;; OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+;; NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+;; CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+;;
+
+(declare (unit mbase-query))
+
+(module
+    mbase-query
+    (
+     mbase-info
+     mbase-stats
+     )
+
+  (import scheme
+	  (chicken base)
+	  srfi-1
+	  mbase
+	  brmember
+	  util-bst-ldict
+	  primes
+	  cal-period
+	  cal-month
+	  members-fees
+	  members-payments)
+
+  (define (members-base-oldest-month mb)
+    (make-cal-month 2015 1))
+
+  (define (members-average-age mrs)
+    (let* ((ages (map brmember-age mrs))
+	   (valid (filter (lambda (x) x) ages))
+	   (num (length valid))
+	   (sum (foldl + 0 valid)))
+      (exact->inexact (/ sum num))))
+
+  ;; Returns dictionary with statistics about the members base.
+  (define (mbase-info mb-arg)
+    (let* ((members (find-members-by-predicate mb-arg brmember-usable?))
+	   (di0 (make-ldict))
+	   (di1 (ldict-set di0 'invalid
+			   (filter (compose not is-4digit-prime? brmember-id) members)))
+	   (active-members (filter brmember-active? members))
+	   (di2 (ldict-set di1 'active
+			   active-members))
+	   (di3 (ldict-set di2 'suspended
+			   (filter brmember-suspended? members)))
+	   (di4 (ldict-set di3 'students
+			   (filter brmember-student? members)))
+	   (di5 (ldict-set di4 'destroyed
+			   (filter brmember-destroyed? members)))
+	   (di6 (ldict-set di5 'month (*current-month*)))
+	   (di7 (ldict-set di6 'total members))
+	   (di8 (ldict-set di7 'problems
+			   (find-members-by-predicate mb-arg brmember-has-problems?)))
+	   (di9 (ldict-set di8 'expected
+			   (get-expected-income mb-arg)))
+	   (mbals (map member-total-balance active-members))
+	   (di10 (ldict-set di9 'balance
+			    (foldl + 0 mbals)))
+	   (di11 (ldict-set di10 'advance
+			    (foldl + 0
+				   (map (lambda (v)
+					  (max 0 v))
+					mbals))))
+	   (di12 (ldict-set di11 'debt
+			    (foldl + 0
+				   (map (lambda (v)
+					  (min 0 v))
+					mbals))))
+	   (di13 (ldict-set di12 'age
+			    (members-average-age active-members)))
+	   )
+      di13))
+
+  ;; Returns a list two lists: keys, data.
+  ;; Each data record contains values for all keys.
+  (define (mbase-stats mb)
+    (let ((keys
+	   '(month
+	     total active suspended students destroyed invalid
+	     expected balance advance debt
+	     age
+	     )))
+      (let mloop ((data '())
+		  (month (members-base-oldest-month mb)))
+	(if (cal-month<=? month (*current-month*))
+	    (let ((bi (with-current-month month
+					  (mbase-info mb))))
+	      (let kloop ((row (list (ldict-ref bi 'month)))
+			  (keys (cdr keys)))
+		(if (null? keys)
+		    (mloop (cons (reverse row) data)
+			   (cal-month-add month 1))
+		    (kloop (cons (let ((val (ldict-ref bi (car keys))))
+				   (if (list? val)
+				       (length val)
+				       val))
+				 row)
+			   (cdr keys)))))
+	    (list keys (reverse data))))))
+
+  )

src/mbase.scm

@@ -50,8 +50,6 @@
   mbase-update-by-id
   mbase-update
 
-  mbase-stats
-
   mbase-add-unpaired
   mbase-unpaired
 
@@ -207,47 +205,6 @@
 				    (proc mr)
 				    mr)))))
 
- ;; Returns dictionary with statistics about the members base.
- (define (mbase-info mb-arg)
-   (let* ((members (find-members-by-predicate mb-arg brmember-usable?))
-	  (di0 (make-ldict))
-	  (di1 (ldict-set di0 'invalid
-			  (filter (compose not is-4digit-prime? brmember-id) members)))
-	  (di2 (ldict-set di1 'active
-			  (filter brmember-active? members)))
-	  (di3 (ldict-set di2 'suspended
-			  (filter brmember-suspended? members)))
-	  (di4 (ldict-set di3 'students
-			  (filter brmember-student? members)))
-	  (di5 (ldict-set di4 'destroyed
-			  (filter brmember-destroyed? members)))
-	  (di6 (ldict-set di5 'month (*current-month*)))
-	  (di7 (ldict-set di6 'total members))
-	  (di8 (ldict-set di7 'problems
-			  (find-members-by-predicate mb-arg brmember-has-problems?))))
-     di8))
-
- (define (members-base-oldest-month mb)
-   (make-cal-month 2015 1))
-
- ;; Returns a list two lists: keys, data.
- ;; Each data record contains values for all keys.
- (define (mbase-stats mb)
-   (let ((keys '(month total active suspended students destroyed invalid)))
-     (let mloop ((data '())
-		 (month (members-base-oldest-month mb)))
-       (if (cal-month<=? month (*current-month*))
-	   (let ((bi (with-current-month month
-					 (mbase-info mb))))
-	     (let kloop ((row (list (ldict-ref bi 'month)))
-			 (keys (cdr keys)))
-	       (if (null? keys)
-		   (mloop (cons (reverse row) data)
-			  (cal-month-add month 1))
-		   (kloop (cons (length (ldict-ref bi (car keys))) row)
-			  (cdr keys)))))
-	   (list keys (reverse data))))))
-
  ;; Adds unpaired transaction to given members-base
  (define (mbase-add-unpaired mb tr)
    (ldict-set mb 'unpaired

src/members-fees.scm

@@ -41,6 +41,7 @@
   member-calendar->table
   members-summary
   member-calendar-entry->fee
+  get-expected-income
   get-expected-income-string
   )
 
@@ -208,6 +209,19 @@
 	    (cons 0 0)
 	    members)))
 
+ (define (get-expected-income mb)
+   (let* ((flst
+	   (map (compose member-calendar-entry->fee make-member-calendar-entry)
+		(find-members-by-predicate mb brmember-active?)))
+	  (amts (sort (delete-duplicates flst) <))
+	  (sums
+	   (map
+	    (lambda (amt)
+	      (cons amt
+		    (length (filter (lambda (v) (= v amt)) flst))))
+	    amts)))
+     (foldl + 0 (map (lambda (p) (* (car p) (cdr p))) sums))))
+
  (define (get-expected-income-string mb)
    (let* ((flst
 	   (map (compose member-calendar-entry->fee make-member-calendar-entry)

src/members-print.scm

@@ -380,7 +380,7 @@
 		    (members-table-row (ansi #:magenta #:bold) "Expire Soon:"
 				       soon-expire-mrs "~N (~S)"))
 		(members-pred-table-row mb
-					(ansi-string #:red #:bold "Prolems:")
+					(ansi-string #:red #:bold "Problems:")
 					brmember-has-problems?
 					"~N~E ~A")
 		(if (null? debtor-mrs)

src/qr-payment.scm

@@ -0,0 +1,104 @@
+;;
+;; qr-payment.scm
+;;
+;; QR payment generator.
+;;
+;; ISC License
+;;
+;; Copyright 2023-2025 Brmlab, z.s.
+;; Dominik Pantůček <dominik.pantucek@trustica.cz>
+;;
+;; Permission to use, copy, modify, and/or distribute this software
+;; for any purpose with or without fee is hereby granted, provided
+;; that the above copyright notice and this permission notice appear
+;; in all copies.
+;; 
+;; THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+;; WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+;; WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+;; AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
+;; CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+;; OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+;; NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+;; CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+;;
+
+(declare (unit qr-payment))
+
+(module
+    qr-payment
+    (
+     make-qrp
+     make-brmlab-qrp
+     make-brmlab-qrp-svg-string
+     )
+
+  (import scheme
+	  (chicken format)
+	  (chicken string)
+	  (chicken base)
+	  util-io)
+
+  (define (make-empty-qrp . vs)
+    (let ((v (if (null? vs) "1.0" (car vs))))
+      (list v "SPD")))
+
+  (define (add-field-to-qrp qrp key value)
+    (cons (format "~A:~A" key value)
+	  qrp))
+
+  (define (serialize-qrp qrp)
+    (string-intersperse (reverse qrp) "*"))
+
+  (define (ensure-amount-format amt)
+    (let* ((n (if (string? amt)
+		  (string->number amt)
+		  amt))
+	   (s (number->string n))
+	   (f (string-split s "."))
+	   (i? (null? (cdr f))))
+      (format "~A.~A"
+	      (car f)
+	      (if i?
+		  "00"
+		  (substring
+		   (string-append (cadr f) "0")
+		   0 2)))))
+
+  (define (make-qrp iban amt cc vs msg)
+    (let loop ((keys '(ACC AM CC MSG X-VS))
+	       (vals (list iban (ensure-amount-format amt) cc msg vs))
+	       (qrp (make-empty-qrp)))
+      (if (null? keys)
+	  (serialize-qrp qrp)
+	  (loop (cdr keys)
+		(cdr vals)
+		(add-field-to-qrp qrp (car keys) (car vals))))))
+
+  (define (make-brmlab-qrp amt cc vs)
+    (let ((iban (if (equal? cc "CZK")
+		    "CZ0520100000002500079551"
+		    (if (equal? cc "EUR")
+			"CZ9320100000002100079552"
+			(error "Invalid currency!")))))
+      (make-qrp iban amt cc vs "Brmlab")))
+
+  (define (qrp-create-svg-string qrps)
+    (let-values
+	(((ec ol)
+	  (get-process-exit+output-lines
+	   "qrencode"
+	   "-t" "svg"
+	   "--inline"
+	   "-o" "-"
+	   "-l" "M"
+	   qrps)))
+      (if (eq? ec 0)
+	  (string-intersperse ol "\n")
+	  #f)))
+
+  (define (make-brmlab-qrp-svg-string amt cc vs)
+    (qrp-create-svg-string
+     (make-brmlab-qrp amt cc vs)))
+
+  )

src/texts.scm

@@ -5,7 +5,7 @@
 ;;
 ;; ISC License
 ;;
-;; Copyright 2023 Brmlab, z.s.
+;; Copyright 2023-2025 Brmlab, z.s.
 ;; Dominik Pantůček <dominik.pantucek@trustica.cz>
 ;;
 ;; Permission to use, copy, modify, and/or distribute this software
@@ -39,7 +39,7 @@
 	 (chicken format))
 
  ;; Short banner
- (define banner-line "HackerBase 1.17 (c) 2023-2024 Brmlab, z.s.")
+ (define banner-line "HackerBase 1.19-dev (c) 2023-2025 Brmlab, z.s.")
 
  ;; Banner source with numbers for ANSI CSI SGR
  (define banner-source "