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;;; pdftk <filename.pdf> dump_data_fields to get field names (including checkbox values)
(define-module (calp entry-points tidsrapport)
:export (main)
:use-module (calp util)
:use-module (calp util options)
:use-module (ice-9 getopt-long)
:use-module (datetime)
)
(use-modules (srfi srfi-41)
(srfi srfi-41 util)
(srfi srfi-1)
(vcomponent)
(datetime)
(vcomponent instance)
(vcomponent instance methods)
(calp util)
(ice-9 regex)
(ice-9 popen)
)
(define event-set
(get-event-set global-event-object))
(define (get-worked-hours summary-search month year)
(define instances
(group-by (compose day as-date (extract 'DTSTART))
(stream->list
((@ (vcomponent search) execute-query)
(lambda (e)
(define d (as-datetime (prop e 'DTSTART)))
(define s (date year: year month: month day: 1))
(and (string=? summary-search (prop e 'SUMMARY))
(datetime<=? (datetime date: s) d)
(datetime<=? d (datetime date: (date+ s (date month: 1))))))
event-set
))))
(define by-day (make-vector 31 0))
(define (exactify n)
(if (= n (round n))
(inexact->exact n)
n))
(for-each (lambda (group)
(define day (car group))
(vector-set! by-day day
(exactify
(apply +
(map (lambda (e)
(time->decimal-hour
(as-time
(datetime-difference (prop e 'DTEND)
(prop e 'DTSTART)))))
(cadr group))))))
instances)
(vector->list by-day))
(define (build-alist work-hours fields)
(filter-map
(lambda (f n)
(if (= 0 n)
#f
(list (string->symbol f)
n)))
fields
work-hours))
(define (fill-from-alist template-list data-list)
(filter-map (lambda (pair)
(cond ((assoc-ref data-list (cadr pair))
=> (lambda (it) (cons (car pair) it)))
(else #f)))
template-list))
;;
;; [ 1, 31]
;; Text16 [17, 47] Text48
;; Text49 [50, 80] Text81
;; Text82 [83, 113] Text114
;;
(define (format-field key value)
(format #f "~%<<~%/T (~a)~%/V (~a)~%>>"
key value))
(define prefix-string
"%FDF-1.2
%âãÏÓ
1 0 obj
<<
/FDF
<<
/Fields [")
(define post-string
"]
>>
>>
endobj
trailer
<<
/Root 1 0 R
>>
%%EOF")
(define (generate-fdf report)
(string-append prefix-string
(string-join (map (lambda (pair)
(apply format-field pair))
report))
post-string)
)
(define opt-spec
'((pdf (value #t)
(description "Input pdf fill"))
(output (single-char #\o) (value 'optional)
(description "Output file"))
(data (value optional)
(description "Static data to fill fields with")
)
(template (value optional)
(description "Map between real field names and human readable names." (br)
"If data is given, but not trans, then data is assumed to be in a correct format"))
(search (value #t)
(description
"Search term for dynamic filling. Supports basic globbing"))))
(define (parse-search str)
(cond [(string-match "\\{(.*)\\}" str)
=> (lambda (m)
(map (lambda (option)
(string-replace str option
(match:start m)
(match:end m)))
(string-split (match:substring m 1) #\,)))]
[else (list str)]))
(define (main args)
(define opts (getopt-long args (getopt-opt opt-spec)))
(define input-pdf (option-ref opts 'pdf #f))
(define output-pdf (or (option-ref opts 'output #f)
(and input-pdf
(string-append (dirname input-pdf)
"/" (basename input-pdf ".pdf")
"-output.pdf"))))
(define data (option-ref opts 'data #f))
(define template
(call-with-input-file
(or (option-ref opts 'template #f)
(error "Template required"))
read))
(define prepared-data
(cond ((and template data)
(fill-from-alist template
(call-with-input-file data read)))
(data (call-with-input-file data read))
(template '())
(else '())))
(define search (parse-search (option-ref opts 'search #f)))
;; month year
(define rem (map string->number (option-ref opts '() '())))
;; TODO warn when length(search) > 3 (number of rows in pdf)
(define auto-filled
(concatenate
(map (lambda (group search-term)
(define prefix (->string (car (or (assoc-ref group 'prefix) (list (symbol))))))
(define summary
(string-append prefix (->string (car (assoc-ref group 'summary)))))
(define sum (string-append prefix (->string (car (assoc-ref group 'sum)))))
(define days
(let ((days (assoc-ref group 'days)))
(cond ((not (list? days))
(error "Needs list, not pair"))
((null? days)
(error "Need more days"))
((and (list? (car days)) (eqv? '- (caar days)))
(map (lambda (s) (string-append prefix (->string s)))
(iota (1+ (- (list-ref (car days) 2)
(list-ref (car days) 1)))
(list-ref (car days) 1))))
;; TODO case where cadr is a list, instead of cdr is the list?
(else
(map (lambda (s) (string-append prefix (->string s)))
days)))))
(define work-hours (apply get-worked-hours search-term rem))
`((,summary ,(format #f "~a ~a" (locale-month (car rem)) search-term))
,@(build-alist work-hours days)
(,sum ,(apply + work-hours))))
(or (assoc-ref template 'groups)
(error "Groups required in template"))
search)))
(define report
(append
prepared-data
auto-filled))
(if input-pdf
(let ((port (open-pipe* OPEN_WRITE
"pdftk" input-pdf "fill_form" "-"
"output" output-pdf)))
(set-port-encoding! port "ISO-8859-1")
(display (generate-fdf report) port)
(newline port)
;; (put-bytevector port (generate-fdf report))
(close-pipe port))
(display (generate-fdf report))))
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