From d00fea566004e67161ee45246b239fff5d416b0e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Hugo=20H=C3=B6rnquist?= <hugo@lysator.liu.se>
Date: Tue, 21 Dec 2021 16:17:28 +0100
Subject: Cleanup modules.

Primarly this moves all vcompenent input and output code to clearly
labeled modules, instead of being spread out. At the same time it also
removes a handfull of unused procedures.
---
 module/vcomponent/group.scm | 71 ---------------------------------------------
 1 file changed, 71 deletions(-)
 delete mode 100644 module/vcomponent/group.scm

(limited to 'module/vcomponent/group.scm')

diff --git a/module/vcomponent/group.scm b/module/vcomponent/group.scm
deleted file mode 100644
index d23787ef..00000000
--- a/module/vcomponent/group.scm
+++ /dev/null
@@ -1,71 +0,0 @@
-(define-module (vcomponent group)
-  #:use-module (vcomponent)
-  #:use-module (vcomponent datetime)
-  #:use-module (datetime)
-  #:use-module (srfi srfi-41)
-  #:use-module (srfi srfi-41 util)
-  #:export (group-stream get-groups-between))
-
-;; TODO templetize this
-(define-stream (group-stream in-stream)
-  (define (ein? day) (lambda (e) (event-contains? e day)))
-
-  (if (stream-null? in-stream)
-      stream-null
-      (let loop ((days (day-stream (as-date (prop (stream-car in-stream) 'DTSTART))))
-                 (stream in-stream))
-        (let* ((day (stream-car days))
-               (tomorow (stream-car (stream-cdr days))))
-
-          (let ((head (stream-take-while (ein? day) stream))
-                (tail
-                 ;; This is a filter, instead of a stream-span together with head,
-                 ;; since events can span multiple days.
-                 ;; This starts with taking everything which end after the beginning
-                 ;; of tommorow, and finishes with the rest when it finds the first
-                 ;; object which begins tomorow (after midnight, exclusize).
-                 (filter-sorted-stream*
-                  (lambda (e) (date/-time<? tomorow
-                                       (or (prop e 'DTEND)
-                                           (if (date? (prop e 'DTSTART))
-                                               (date+ (prop e 'DTSTART) (date day: 1))
-                                               (prop e 'DTSTART)))))
-                  (lambda (e) (date/-time<=? tomorow (prop e 'DTSTART)))
-                  stream)))
-
-
-            (stream-cons (cons day head)
-                         (loop (stream-cdr days)
-                               tail)))))))
-
-(define (get-groups-between groups start-date end-date)
-
-  (define good-part
-    (filter-sorted-stream
-     (compose (in-date-range? start-date end-date)
-              car)
-     groups))
-
-  ;; NOTE slightly ugly hack. The first element in the return of group-stream shares
-  ;; it's date component with the lowest dtstart in the event set. This means that a
-  ;; group set might start after our start- (and end-!) date.
-  ;; To combat this I simple create a bunch of dummy groups below.
-
-  (cond [(stream-null? good-part)
-         (list->stream
-          (map (lambda (d) (cons d stream-null))
-               (date-range start-date end-date)))]
-        [(car (stream-car good-part))
-         (lambda (d) (date< start-date d))
-         => (lambda (d)
-              (stream-append
-               (list->stream
-                (map (lambda (d) (cons d stream-null))
-                     (date-range start-date
-                                 (date- d (date day: 1)))))
-               good-part))]
-        [else good-part]))
-
-
-(define-public (group->event-list group)
-  (stream->list (cdr group)))
-- 
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