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(define-module (vcomponent load)
:export (load-calendars)
:use-module (util)
:use-module (srfi srfi-1)
:use-module (srfi srfi-19)
:use-module (srfi srfi-41)
:use-module (srfi srfi-41 util)
:use-module (parameters)
;; :use-module (vcomponent)
:use-module (vcomponent base)
:use-module ((vcomponent parse) :select (parse-cal-path))
:use-module ((vcomponent recurrence) :select (generate-recurrence-set repeating?))
:use-module ((vcomponent datetime) :select (ev-time<?)))
;; 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* (load-calendars #:key (calendar-files (calendar-files)))
(define calendars (map parse-cal-path calendar-files))
(define events (concatenate
;; TODO does this drop events?
(map (lambda (cal) (filter (lambda (o) (eq? 'VEVENT (type o)))
(children cal)))
calendars)))
(let* ((repeating regular (partition repeating? events)))
(set! repeating (sort*! repeating time<? (extract 'DTSTART))
regular (sort*! regular time<? (extract 'DTSTART)))
(values
calendars
(interleave-streams
ev-time<?
(cons (list->stream regular)
(map generate-recurrence-set repeating))))))
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