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soccer-time.el
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soccer-time.el
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;;; soccer-time.el --- Part of soccer.el, utilities for time conversion -*- lexical-binding: t; -*-
;; Copyright (C) 2021 Md Arif Shaikh
;; Author: Md Arif Shaikh <[email protected]>
;; Homepage: https://github.com/md-arif-shaikh/soccer
;; Package-Requires: ((emacs "24.4"))
;; Keywords: games, calendar
;; Version: 1.0.0
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <https://www.gnu.org/licenses/>.
;; Local variables:
;; package-lint-main-file: "soccer.el"
;; end:
;;; Commentary:
;; Utilities for conversion of time to local time and other nice stuffs
;;
;;; Code:
(require 'org)
(defcustom soccer-time-local-time-utc-offset "+0530"
"UTC offfset for local time zone."
:type 'string
:group 'soccer)
(defun soccer-time--get-day-name (day month year)
"Get the day name from DAY MONTH and YEAR."
(aref calendar-day-abbrev-array (nth 6 (decode-time (encode-time (list 0 0 0 day month year nil nil nil))))))
(defun soccer-time--get-day-month-year-number-from-date (date separator day-position month-position year-position)
"Get day, month and year numbers from a DATE with SEPARATOR. DAY-POSITION, MONTH-POSITION and YEAR-POSITION helps to recognize the format of date."
(let* ((splitted-strings (split-string date separator))
(day (string-to-number (nth day-position splitted-strings)))
(month (string-to-number (nth month-position splitted-strings)))
(year (string-to-number (nth year-position splitted-strings))))
(when (< year 100)
(setq year (+ year 2000)))
(list day month year)))
(defun soccer-time--get-day-name-from-date (date separator day-position month-position year-position)
"Get day name from a DATE with SEPARATOR. DAY-POSITION, MONTH-POSITION and YEAR-POSITION helps to recognize the format of date."
(let* ((splitted-strings (split-string date separator))
(day (string-to-number (nth day-position splitted-strings)))
(month (string-to-number (nth month-position splitted-strings)))
(year (string-to-number (nth year-position splitted-strings))))
(soccer-time--get-day-name day month year)))
(defun soccer-time--get-month-name-from-date (date separator month-position)
"Get month name from a DATE with SEPARATOR. MONTH-POSITION is the position of month number in the date."
(let* ((splitted-strings (split-string date separator))
(month (string-to-number (nth month-position splitted-strings))))
(aref calendar-month-abbrev-array (1- month))))
(defun soccer-time--get-year-from-date (date separator year-position)
"Get year from a DATE with SEPARATOR. YEAR-POSITION is the position of month number in the date."
(let* ((splitted-strings (split-string date separator)))
(string-to-number (nth year-position splitted-strings))))
(defun soccer-time--get-day-from-date (date separator day-position)
"Get day number from a DATE with SEPARATOR. DAY-POSITION is the position of month number in the date."
(let* ((splitted-strings (split-string date separator)))
(string-to-number (nth day-position splitted-strings))))
(defun soccer-time--get-next-or-previous-date (date separator day-position month-position year-position delta)
"Get the next or previous date with DELTA time difference for a DATE with SEPARATOR. DAY-POSITION, MONTH-POSITION and YEAR-POSITION helps to recognize the format of date."
(let* ((day-month-year (soccer-time--get-day-month-year-number-from-date date separator day-position month-position year-position))
(day (nth 0 day-month-year))
(month (nth 1 day-month-year))
(year (nth 2 day-month-year))
(org-date-string (org-read-date nil nil delta nil (encode-time (list 0 0 0 day month year nil nil nil))))
(org-date-strings-list (split-string org-date-string "-"))
(org-year (nth 0 org-date-strings-list))
(org-month (nth 1 org-date-strings-list))
(org-day (nth 2 org-date-strings-list))
(next-date-string-list '(0 0 0)))
(setf (nth day-position next-date-string-list) org-day)
(setf (nth month-position next-date-string-list) org-month)
(setf (nth year-position next-date-string-list) org-year)
(string-join next-date-string-list (if (string-equal separator "\\.") "." separator))))
(defun soccer-time--get-local-time-list (time date separator day-position month-position year-position source-utc-offset local-utc-offset)
"Get local time in form of list of mins, hours, AM/PM, dayname, daynumber, monthname year for given TIME, DATE, SOURCE-UTC-OFFSET and LOCAL-UTC-OFFSET. SEPARATOR is the separator in the DATE and DAY-POSITION, MONTH-POSITION and YEAR-POSITION are positions of day, month and year in the date."
(let* ((source-time-list (parse-time-string (format "%s %s" time source-utc-offset)))
(source-min (nth 1 source-time-list))
(source-hour (nth 2 source-time-list))
(source-offset (nth 8 source-time-list))
(local-offset (nth 8 (parse-time-string (format "%s %s" time local-utc-offset))))
(seconds-shift (- local-offset source-offset))
(hour-shift (/ seconds-shift 3600))
(min-shift (/ (% seconds-shift 3600) 60))
(local-min (+ source-min min-shift))
(local-hour (+ source-hour hour-shift))
(day-offset "++0")
AM/PM
local-date
local-dayname
local-daynumber
local-monthname
local-year)
(cond ((< local-min 0) (progn
(setq local-min (+ local-min 60))
(setq local-hour (1- local-hour))))
((>= local-min 60) (progn
(setq local-min (- local-min 60))
(setq local-hour (1+ local-hour)))))
(cond ((< local-hour 0) (progn
(setq local-hour (+ local-hour 24))
(setq day-offset "--1")))
((>= local-hour 24) (progn
(setq local-hour (- local-hour 24))
(setq day-offset "++1"))))
(if (>= local-hour 12)
(progn
(setq local-hour (- local-hour 12))
(setq AM/PM "PM"))
(setq AM/PM "AM"))
(setq local-date (soccer-time--get-next-or-previous-date date separator day-position month-position year-position day-offset))
(setq local-dayname (soccer-time--get-day-name-from-date local-date separator day-position month-position year-position))
(setq local-daynumber (soccer-time--get-day-from-date local-date separator day-position))
(setq local-monthname (soccer-time--get-month-name-from-date local-date separator month-position))
(setq local-year (soccer-time--get-year-from-date local-date separator year-position))
(list local-min local-hour AM/PM local-dayname local-daynumber local-monthname local-year)))
(defun soccer-time--get-time-till-kick-off (time date separator day-position month-position year-position source-utc-offset local-utc-offset)
"Get get day hour mins till kick-off from given TIME, DATE, SOURCE-UTC-OFFSET and LOCAL-UTC-OFFSET. SEPARATOR is the separator in the DATE and DAY-POSITION, MONTH-POSITION and YEAR-POSITION are positions of day, month and year in the date."
(let* ((local-time-list (soccer-time--get-local-time-list time date separator day-position month-position year-position source-utc-offset local-utc-offset))
(local-min (nth 0 local-time-list))
(local-hour (nth 1 local-time-list))
(A/P (nth 2 local-time-list))
(local-daynumber (nth 4 local-time-list))
(local-monthname (nth 5 local-time-list))
(local-year (nth 6 local-time-list))
local-time-string
time-delta-seconds
days-remain
hours-remain
mins-remain)
(when (string-equal A/P "PM")
(setq local-hour (+ 12 local-hour)))
(setq local-time-string (format "%s %s, %s %s:%s %s" local-monthname local-daynumber local-year local-hour (if (< local-min 10) (concat "0" (format "%s" local-min)) local-min) local-utc-offset))
(setq time-delta-seconds (time-subtract (date-to-time local-time-string)
(date-to-time (current-time-string))))
(setq days-remain (/ time-delta-seconds (* 24 60 60)))
(setq hours-remain (/ (% time-delta-seconds (* 24 60 60)) (* 60 60)))
(setq mins-remain (/ (% (% time-delta-seconds (* 24 60 60)) (* 60 60)) 60))
(list days-remain hours-remain mins-remain)))
(provide 'soccer-time)
;;; soccer-time.el ends here