Bankruptcy 9

1 files changed, 0 insertions, 74 deletions

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-;;; dawn.el --- Do things at dawn (and dusk) -*- lexical-binding: t; -*-
-
-;;; Commentary:
-
-;; There is also circadian.el, but it doesn't quite work for me.
-;; This code comes mostly from https://gnu.xyz/auto_theme.html, but also
-;; somewhere else (which I've forgotten) and my own brain :)
-
-;;; Code:
-
-(require 'calendar)
-(require 'cl-lib)
-(require 'solar)
-
-(defvar dawn--dawn-timer nil
-  "Timer for dawn-command.")
-
-(defvar dawn--dusk-timer nil
-  "Timer for dusk-command.")
-
-(defvar dawn--reset-timer nil
-  "Timer to reset dawn at midnight.")
-
-(defun dawn-encode-time (f)
-  "Encode fractional time F."
-  (let ((hhmm (cl-floor f))
-        (date (cdddr (decode-time))))
-    (encode-time
-     (append (list 0
-                   (round (* 60 (cadr hhmm)))
-                   (car hhmm)
-                   )
-             date))))
-
-(defun dawn-midnight ()
-  "Return the time of the /next/ midnight."
-  (let ((date (cdddr (decode-time))))
-    (encode-time
-     (append (list 0 0 0 (1+ (car date))) (cdr date)))))
-
-(defun dawn-sunrise ()
-  "Return the time of today's sunrise."
-  (dawn-encode-time (caar (solar-sunrise-sunset (calendar-current-date)))))
-
-(defun dawn-sunset ()
-  "Return the time of today's sunset."
-  (dawn-encode-time (caadr (solar-sunrise-sunset (calendar-current-date)))))
-
-(defun dawn-schedule (dawn-command dusk-command)
-  "Run DAWN-COMMAND at sunrise, and DUSK-COMMAND at dusk.
-RESET is an argument for internal use."
-  (let ((dawn (dawn-sunrise))
-        (dusk (dawn-sunset)))
-    (cond
-     ((time-less-p nil dawn)
-      ;; If it isn't dawn yet, it's still dark.  Run DUSK-COMMAND and schedule
-      ;; DAWN-COMMAND and DUSK-COMMAND for later.
-      (funcall dusk-command)
-      (run-at-time dawn nil dawn-command)
-      (run-at-time dusk nil dusk-command))
-     ((time-less-p nil dusk)
-      ;; If it isn't dusk yet, it's still light.  Run DAWN-COMMAND and schedule
-      ;; DUSK-COMMAND.
-      (funcall dawn-command)
-      (run-at-time dusk nil dusk-command))
-     (t ;; Otherwise, it's past dusk, so run DUSK-COMMAND.
-      (funcall dusk-command)))
-    ;; Schedule a reset at midnight, to re-calculate dawn/dusk times.
-    ;(unless reset)
-    (run-at-time (dawn-midnight) nil
-                 #'dawn-schedule dawn-command dusk-command)))
-
-(provide 'dawn)
-;;; dawn.el ends here