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#!/usr/bin/guile \
-e main -s
!#
(add-to-load-path (dirname (current-filename)))
(use-modules (srfi srfi-1)
(srfi srfi-19)
(srfi srfi-19 util)
(srfi srfi-26)
(srfi srfi-41)
(srfi srfi-41 util)
(ice-9 format)
(ice-9 control) ; call-with-escape-continuation
(texinfo string-utils) ; string->wrapped-lines
(util)
(vcalendar)
(vcalendar recurrence)
(vcalendar datetime)
(vcalendar output)
(terminal escape)
(terminal util)
(html html)
)
(define (ev-time<? a b)
(time<? (attr a 'DTSTART)
(attr b 'DTSTART)))
#; (define pizza-event (search cal "pizza"))
(define (trim-to-width str len)
(let ((trimmed (string-pad-right str len)))
(if (< (string-length trimmed)
(string-length str))
(string-append (string-drop-right trimmed 1)
"…")
trimmed)))
; TODO show truncated string
(define (now)
(date->time-utc (current-date)))
(define (box-top intersection line . lengths)
(reduce (lambda (str done) (string-append done (string intersection) str))
"" (map (cut make-string <> line) lengths)))
(define (displayln a)
(display a) (newline))
(define (summary-filter _ str) str)
(define (main-loop event-stream)
(define time (now))
(define cur-event 0)
(while #t
(let ((events
(stream->list
(filter-sorted-stream
(cut event-in? <> time)
event-stream))))
(cls)
(display-calendar-header! (time-utc->date time))
;; (line)
(displayln (box-top #\┬ #\─ 20 32 10))
(for-each
(lambda (ev i)
(format #t "~a │ ~a~a~a~a │ ~a~a~%"
(time->string (attr ev 'DTSTART) "~1 ~3") ; TODO show truncated string
(if (= i cur-event) "\x1b[7m" "")
(color-escape (attr (parent ev) 'COLOR))
;; Summary filter is a hook for the user
(trim-to-width (summary-filter ev (attr ev 'SUMMARY)) 30)
STR-RESET
(trim-to-width
(or (attr ev 'LOCATION) "\x1b[1;30mINGEN LOKAL") 20)
STR-RESET))
events
(iota (length events)))
(displayln (box-top #\┴ #\─ 20 32 10))
(unless (null? events)
(let ((ev (list-ref events cur-event)))
(format #t "~a~%~a~%~aStart: ~a Slut: ~a~%~%~a~%"
(attr ev 'X-HNH-FILENAME)
(attr ev 'SUMMARY)
(or (and=> (attr ev 'LOCATION) (cut string-append "Plats: " <> "\n")) "")
(time->string (attr ev 'DTSTART) "~1 ~3")
(time->string (attr ev 'DTEND) "~1 ~3")
(string-join ; TODO replace this with a better text flower
(take-to ; This one destroys newlines used for layout
(string->wrapped-lines (or (attr ev 'DESCRIPTION) "")
#:line-width 60
#:collapse-whitespace? #f)
10)
(string #\newline))
)))
(let ((char (read-char)))
;; (format (current-error-port)
;; "c = ~c (~d)~%" char (char->integer char))
(case char
((#\L #\l)
(set! time (add-day time)
cur-event 0))
((#\h #\H)
(set! time (remove-day time)
cur-event 0))
((#\t)
(set! time (now)
cur-event 0))
((#\j #\J) (unless (= cur-event (1- (length events)))
(mod! cur-event 1+)))
((#\k #\K) (unless (= cur-event 0)
(mod! cur-event 1-)))
((#\p) (print-vcomponent (list-ref events cur-event)
(current-error-port)))
((#\g) (set! cur-event 0))
((#\G) (set! cur-event (1- (length events)))))
(when (or (eof-object? char)
(memv char (list #\q (ctrl #\C))))
(break)))
)))
(load "config.scm")
;; Reads all calendar files from disk, and creates a list of "regular" events,
;; and a stream of "repeating" events, which are passed in that order to the
;; given procedure @var{proc}.
;;
;; Given as a sepparate function from main to ease debugging.
(define (init proc)
(define calendars (map make-vcomponent calendar-files))
(define events (concatenate (map (cut children <> 'VEVENT) calendars)))
(let* ((repeating regular (partition repeating? events)))
(set! repeating (sort*! repeating time<? (extract 'DTSTART))
regular (sort*! regular time<? (extract 'DTSTART)))
(proc
calendars
(interleave-streams
ev-time<?
(cons (list->stream regular)
(map generate-recurrence-set repeating))))))
(define (main args)
;; (init (lambda (calendars events)
;; (with-vulgar
;; (lambda () (main-loop events)))))
((@ (sxml simple) sxml->xml) (init html-main))
)
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