--- /dev/null
+;;; timeclock.el --- mode for keeping track of how much you work
+
+;; Copyright (C) 1999, 2000 Free Software Foundation, Inc.
+
+;; Author: John Wiegley <johnw@gnu.org>
+;; Created: 25 Mar 1999
+;; Version: 2.2
+;; Keywords: calendar data
+;; X-URL: http://www.emacs.org/~johnw/emacs.html
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs 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 2, or (at your option)
+;; any later version.
+
+;; GNU Emacs 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 GNU Emacs; see the file COPYING. If not, write to the
+;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
+
+;;; Commentary:
+
+;; This mode is for keeping track of time intervals. You can use it
+;; for whatever purpose you like, but the typical scenario is to keep
+;; track of how much time you spend working on certain projects.
+;;
+;; Use `timeclock-in' when you start on a project, and `timeclock-out'
+;; when you're done. Once you've collected some data, you can use
+;; `timeclock-workday-remaining' to see how much time is left to be
+;; worked today (assuming a typical average of 8 hours a day), and
+;; `timeclock-when-to-leave' which will calculate when you're free.
+
+;; You'll probably want to bind the timeclock commands to some handy
+;; keystrokes. At the moment, C-x t is unused in Emacs 20:
+;;
+;; (require 'timeclock)
+;;
+;; (define-key ctl-x-map "ti" 'timeclock-in)
+;; (define-key ctl-x-map "to" 'timeclock-out)
+;; (define-key ctl-x-map "tc" 'timeclock-change)
+;; (define-key ctl-x-map "tr" 'timeclock-reread-log)
+;; (define-key ctl-x-map "tu" 'timeclock-update-modeline)
+;; (define-key ctl-x-map "tw" 'timeclock-when-to-leave-string)
+
+;; If you want Emacs to display the amount of time "left" to your
+;; workday in the modeline, you can either set the value of
+;; `timeclock-modeline-display' to t using M-x customize, or you
+;; can add this code to your .emacs file:
+;;
+;; (require 'timeclock)
+;; (timeclock-modeline-display)
+;;
+;; To cancel this modeline display at any time, just call
+;; `timeclock-modeline-display' again.
+
+;; You may also want Emacs to ask you before exiting, if you are
+;; current working on a project. This can be done either by setting
+;; `timeclock-ask-before-exiting' to t using M-x customize (this is
+;; the default), or by adding the following to your .emacs file:
+;;
+;; (add-hook 'kill-emacs-hook 'timeclock-query-out)
+
+;; NOTE: If you change your .timelog file without using timeclock's
+;; functions, or if you change the value of any of timeclock's
+;; customizable variables, you should run the command
+;; `timeclock-reread-log'. This will recompute any discrepancies in
+;; your average working time, and will make sure that the various
+;; display functions return the correct value.
+
+;;; History:
+
+;;; Code:
+
+(defgroup timeclock nil
+ "Keeping track time of the time that gets spent."
+ :group 'data)
+
+;;; User Variables:
+
+(defcustom timeclock-file "~/.timelog"
+ "*The file used to store timeclock data in."
+ :type 'file
+ :group 'timeclock)
+
+(defcustom timeclock-workday (* 8 60 60)
+ "*The length of a work period."
+ :type 'integer
+ :group 'timeclock)
+
+(defcustom timeclock-relative t
+ "*When reporting time, make it relative to `timeclock-workday'?
+For example, if the length of a normal workday is eight hours, and you
+work four hours on Monday, then the amount of time \"remaining\" on
+Tuesday is twelve hours -- relative to an averaged work period of
+eight hours -- or eight hours, non-relative. So relative time takes
+into account any discrepancy of time under-worked or overworked on
+previous days."
+ :type 'boolean
+ :group 'timeclock)
+
+(defcustom timeclock-get-project-function 'timeclock-ask-for-project
+ "*The function used to determine the name of the current project.
+When clocking in, and no project is specified, this function will be
+called to determine what the current project to be worked on is.
+If this variable is nil, no questions will be asked."
+ :type 'function
+ :group 'timeclock)
+
+(defcustom timeclock-get-reason-function 'timeclock-ask-for-reason
+ "*A function used to determine the reason for clocking out.
+When clocking out, and no reason is specified, this function will be
+called to determine what the reason is.
+If this variable is nil, no questions will be asked."
+ :type 'function
+ :group 'timeclock)
+
+(defcustom timeclock-get-workday-function nil
+ "*A function used to determine the length of today's workday.
+The first time that a user clocks in each day, this function will be
+called to determine what the length of the current workday is. If
+nil, or equal to `timeclock-workday', nothing special will be done.
+If it is a quantity different from `timeclock-workday', however, a
+record will be output to the timelog file to note the fact that that
+day has a different length from the norm."
+ :type 'function
+ :group 'timeclock)
+
+(defcustom timeclock-ask-before-exiting t
+ "*If non-nil, ask if the user wants to clock out before exiting Emacs."
+ :set (lambda (symbol value)
+ (if value
+ (add-hook 'kill-emacs-hook 'timeclock-query-out)
+ (remove-hook 'kill-emacs-hook 'timeclock-query-out))
+ (setq timeclock-ask-before-exiting value))
+ :type 'boolean
+ :group 'timeclock)
+
+(defvar timeclock-update-timer nil
+ "The timer used to update `timeclock-mode-string'.")
+
+(defcustom timeclock-use-display-time t
+ "*If non-nil, use `display-time-hook' for doing modeline updates.
+The advantage to this is that it means one less timer has to be set
+running amok in Emacs' process space. The disadvantage is that it
+requires you to have `display-time' running. If you don't want to use
+`display-time', but still want the modeline to show how much time is
+left, set this variable to nil. You will need to restart Emacs (or
+toggle the value of `timeclock-modeline-display') for the change to
+take effect."
+ :set (lambda (symbol value)
+ (let ((currently-displaying
+ (and (boundp 'timeclock-modeline-display)
+ timeclock-modeline-display)))
+ ;; if we're changing to the state that
+ ;; `timeclock-modeline-display' is already using, don't
+ ;; bother toggling it. This happens on the initial loading
+ ;; of timeclock.el.
+ (if (and currently-displaying
+ (or (and value
+ (boundp 'display-time-hook)
+ (memq 'timeclock-update-modeline
+ display-time-hook))
+ (and (not value)
+ timeclock-update-timer)))
+ (setq currently-displaying nil))
+ (and currently-displaying
+ (set-variable timeclock-modeline-display nil))
+ (setq timeclock-use-display-time value)
+ (and currently-displaying
+ (set-variable timeclock-modeline-display t))
+ timeclock-use-display-time))
+ :type 'boolean
+ :group 'timeclock
+ :require 'time)
+
+(defcustom timeclock-first-in-hook nil
+ "*A hook run for the first \"in\" event each day.
+Note that this hook is run before recording any events. Thus the
+value of `timeclock-hours-today', `timeclock-last-event' and the
+return value of function `timeclock-last-period' are relative previous
+to today."
+ :type 'hook
+ :group 'timeclock)
+
+(defcustom timeclock-load-hook nil
+ "*Hook that gets run after timeclock has been loaded."
+ :type 'hook
+ :group 'timeclock)
+
+(defcustom timeclock-in-hook nil
+ "*A hook run every time an \"in\" event is recorded."
+ :type 'hook
+ :group 'timeclock)
+
+(defcustom timeclock-day-over-hook nil
+ "*A hook that is run when the workday has been completed.
+This hook is only run if the current time remaining is being display
+in the modeline. See the variable `timeclock-modeline-display'."
+ :type 'hook
+ :group 'timeclock)
+
+(defcustom timeclock-out-hook nil
+ "*A hook run every time an \"out\" event is recorded."
+ :type 'hook
+ :group 'timeclock)
+
+(defcustom timeclock-done-hook nil
+ "*A hook run every time a project is marked as completed."
+ :type 'hook
+ :group 'timeclock)
+
+(defcustom timeclock-event-hook nil
+ "*A hook run every time any event is recorded."
+ :type 'hook
+ :group 'timeclock)
+
+(defvar timeclock-last-event nil
+ "A list containing the last event that was recorded.
+The format of this list is (CODE TIME PROJECT). PROJECT will be
+non-nil only if CODE is \"o\" or \"O\".")
+
+(defvar timeclock-last-event-workday nil
+ "The number of seconds in the workday of `timeclock-last-event'.")
+
+;;; Internal Variables:
+
+(defvar timeclock-discrepancy nil
+ "A variable containing the time discrepancy before the last event.
+Normally, timeclock assumes that you intend to work for
+`timeclock-workday' seconds every day. Any days in which you work
+more or less than this amount is considered either a positive or
+negative discrepancy. If you work in such a manner that the
+discrepancy is always brought back to zero, then you will by
+definition have worked an average amount equal to `timeclock-workday'
+each day.")
+
+(defvar timeclock-elapsed nil
+ "A variable containing the time elapsed for complete periods today.
+This value is not accurate enough to be useful by itself. Rather,
+call `timeclock-workday-elapsed', to determine how much time has been
+worked so far today. Also, if `timeclock-relative' is nil, this value
+will be the same as `timeclock-discrepancy'.")
+
+(defvar timeclock-last-period nil
+ "Integer representing the number of seconds in the last period.
+Note that you shouldn't access this value, but should use the function
+`timeclock-last-period' instead.")
+
+(defvar timeclock-mode-string nil
+ "The timeclock string (optionally) displayed in the modeline.")
+
+(defvar timeclock-day-over nil
+ "The date of the last day when notified \"day over\" for.")
+
+;;; User Functions:
+
+;;;###autoload
+(defun timeclock-modeline-display (&optional arg)
+ "Toggle display of the amount of time left today in the modeline.
+If `timeclock-use-display-time' is non-nil, the modeline will be
+updated whenever the time display is updated. Otherwise, the
+timeclock will use its own sixty second timer to do its updating.
+With prefix ARG, turn modeline display on if and only if ARG is
+positive. Returns the new status of timeclock modeline display
+\(non-nil means on)."
+ (interactive "P")
+ (let ((on-p (if arg
+ (> (prefix-numeric-value arg) 0)
+ (not timeclock-modeline-display))))
+ (if on-p
+ (let ((list-entry (memq 'global-mode-string
+ mode-line-format)))
+ (unless (memq 'timeclock-mode-string mode-line-format)
+ (setcdr list-entry
+ (cons 'timeclock-mode-string
+ (cdr list-entry))))
+ (unless (memq 'timeclock-update-modeline timeclock-event-hook)
+ (add-hook 'timeclock-event-hook 'timeclock-update-modeline))
+ (when timeclock-update-timer
+ (cancel-timer timeclock-update-timer)
+ (setq timeclock-update-timer nil))
+ (if (boundp 'display-time-hook)
+ (remove-hook 'display-time-hook 'timeclock-update-modeline))
+ (if timeclock-use-display-time
+ (add-hook 'display-time-hook 'timeclock-update-modeline)
+ (setq timeclock-update-timer
+ (run-at-time nil 60 'timeclock-update-modeline))))
+ (setq mode-line-format
+ (delq 'timeclock-mode-string mode-line-format))
+ (remove-hook 'timeclock-event-hook 'timeclock-update-modeline)
+ (if (boundp 'display-time-hook)
+ (remove-hook 'display-time-hook
+ 'timeclock-update-modeline))
+ (when timeclock-update-timer
+ (cancel-timer timeclock-update-timer)
+ (setq timeclock-update-timer nil)))
+ (force-mode-line-update)
+ on-p))
+
+;; This has to be here so that the function definition of
+;; `timeclock-modeline-display' is known to the "set" function.
+(defcustom timeclock-modeline-display nil
+ "Toggle modeline display of time remaining.
+You must modify via \\[customize] for this variable to have an effect."
+ :set (lambda (symbol value)
+ (setq timeclock-modeline-display
+ (timeclock-modeline-display (or value 0))))
+ :type 'boolean
+ :group 'timeclock
+ :require 'timeclock)
+
+;;;###autoload
+(defun timeclock-in (&optional arg project find-project)
+ "Clock in, recording the current time moment in the timelog.
+With a numeric prefix ARG, record the fact that today has only that
+many hours in it to be worked. If arg is a non-numeric prefix arg
+\(non-nil, but not a number), 0 is assumed (working on a holiday or
+weekend). *If not called interactively, ARG should be the number of
+_seconds_ worked today*. This feature only has effect the first time
+this function is called within a day.
+
+PROJECT as the project being clocked into. If PROJECT is nil, and
+FIND-PROJECT is non-nil -- or the user calls `timeclock-in'
+interactively -- call the function `timeclock-get-project-function' to
+discover the name of the project."
+ (interactive
+ (list (and current-prefix-arg
+ (if (numberp current-prefix-arg)
+ (* current-prefix-arg 60 60)
+ 0))))
+ (if (equal (car timeclock-last-event) "i")
+ (error "You've already clocked in!")
+ (unless timeclock-last-event
+ (timeclock-reread-log))
+ (unless (equal (timeclock-time-to-date
+ (cadr timeclock-last-event))
+ (timeclock-time-to-date (current-time)))
+ (let ((workday (or (and (numberp arg) arg)
+ (and arg 0)
+ (and timeclock-get-workday-function
+ (funcall timeclock-get-workday-function))
+ timeclock-workday)))
+ (run-hooks 'timeclock-first-in-hook)
+ ;; settle the discrepancy for the new day
+ (setq timeclock-discrepancy
+ (- timeclock-discrepancy workday))
+ (if (not (= workday timeclock-workday))
+ (timeclock-log "h" (and (numberp arg)
+ (number-to-string arg))))))
+ (timeclock-log "i" (or project
+ (and timeclock-get-project-function
+ (or find-project (interactive-p))
+ (funcall timeclock-get-project-function))))
+ (run-hooks 'timeclock-in-hook)))
+
+;;;###autoload
+(defun timeclock-out (&optional arg reason find-reason)
+ "Clock out, recording the current time moment in the timelog.
+If a prefix ARG is given, the user has completed the project that was
+begun during the last time segment.
+
+REASON is the user's reason for clocking out. If REASON is nil, and
+FIND-REASON is non-nil -- or the user calls `timeclock-out'
+interactively -- call the function `timeclock-get-reason-function' to
+discover the reason."
+ (interactive "P")
+ (if (equal (downcase (car timeclock-last-event)) "o")
+ (error "You've already clocked out!")
+ (timeclock-log
+ (if arg "O" "o")
+ (or reason
+ (and timeclock-get-reason-function
+ (or find-reason (interactive-p))
+ (funcall timeclock-get-reason-function))))
+ (run-hooks 'timeclock-out-hook)
+ (if arg
+ (run-hooks 'timeclock-done-hook))))
+
+;;;###autoload
+(defun timeclock-status-string (&optional show-seconds today-only)
+ "Report the overall timeclock status at the present moment."
+ (interactive "P")
+ (let* ((remainder (timeclock-workday-remaining))
+ (last-in (equal (car timeclock-last-event) "i"))
+ status)
+ (setq status
+ (format "Currently %s since %s (%s), %s %s, leave at %s"
+ (if last-in "IN" "OUT")
+ (if show-seconds
+ (format-time-string "%-I:%M:%S %p"
+ (nth 1 timeclock-last-event))
+ (format-time-string "%-I:%M %p"
+ (nth 1 timeclock-last-event)))
+ (or (nth 2 timeclock-last-event)
+ (if last-in "**UNKNOWN**" "workday over"))
+ (timeclock-seconds-to-string remainder show-seconds t)
+ (if (> remainder 0)
+ "remaining" "over")
+ (timeclock-when-to-leave-string show-seconds today-only)))
+ (if (interactive-p)
+ (message status)
+ status)))
+
+;;;###autoload
+(defun timeclock-change (&optional arg project)
+ "Change to working on a different project, by clocking in then out.
+With a prefix ARG, consider the previous project as having been
+finished at the time of changeover. PROJECT is the name of the last
+project you were working on."
+ (interactive "P")
+ (timeclock-out arg)
+ (timeclock-in nil project (interactive-p)))
+
+;;;###autoload
+(defun timeclock-query-out ()
+ "Ask the user before clocking out.
+This is a useful function for adding to `kill-emacs-hook'."
+ (if (and (equal (car timeclock-last-event) "i")
+ (y-or-n-p "You're currently clocking time, clock out? "))
+ (timeclock-out)))
+
+;;;###autoload
+(defun timeclock-reread-log ()
+ "Re-read the timeclock, to account for external changes.
+Returns the new value of `timeclock-discrepancy'."
+ (interactive)
+ (setq timeclock-discrepancy nil)
+ (timeclock-find-discrep)
+ (if timeclock-modeline-display
+ (timeclock-update-modeline))
+ timeclock-discrepancy)
+
+(defun timeclock-seconds-to-string (seconds &optional show-seconds
+ reverse-leader)
+ "Convert SECONDS into a compact time string.
+If SHOW-SECONDS is non-nil, make the resolution of the return string
+include the second count. If REVERSE-LEADER is non-nil, it means to
+output a \"+\" if the time value is negative, rather than a \"-\".
+This is used when negative time values have an inverted meaning (such
+as with time remaining, where negative time really means overtime)."
+ (if show-seconds
+ (format "%s%d:%02d:%02d"
+ (if (< seconds 0) (if reverse-leader "+" "-") "")
+ (truncate (/ (abs seconds) 60 60))
+ (% (truncate (/ (abs seconds) 60)) 60)
+ (% (truncate (abs seconds)) 60))
+ (format "%s%d:%02d"
+ (if (< seconds 0) (if reverse-leader "+" "-") "")
+ (truncate (/ (abs seconds) 60 60))
+ (% (truncate (/ (abs seconds) 60)) 60))))
+
+(defun timeclock-workday-remaining (&optional today-only)
+ "Return a the number of seconds until the workday is complete.
+The amount returned is relative to the value of `timeclock-workday'.
+If TODAY-ONLY is non-nil, the value returned will be relative only to
+the time worked today, and not to past time. This argument only makes
+a difference if `timeclock-relative' is non-nil."
+ (- (timeclock-find-discrep today-only)))
+
+(defun timeclock-currently-in-p ()
+ "Return non-nil if the user is currently clocked in."
+ (equal (car timeclock-last-event) "i"))
+
+;;;###autoload
+(defun timeclock-workday-remaining-string (&optional show-seconds
+ today-only)
+ "Return a string representing the amount of time left today.
+Display second resolution if SHOW-SECONDS is non-nil. If TODAY-ONLY
+is non-nil, the display will be relative only to time worked today.
+See `timeclock-relative' for more information about the meaning of
+\"relative to today\"."
+ (interactive)
+ (let ((string (timeclock-seconds-to-string
+ (timeclock-workday-remaining today-only)
+ show-seconds t)))
+ (if (interactive-p)
+ (message string)
+ string)))
+
+(defun timeclock-workday-elapsed (&optional relative)
+ "Return a the number of seconds worked so far today.
+If RELATIVE is non-nil, the amount returned will be relative to past
+time worked. The default is to return only the time that has elapsed
+so far today."
+ (+ timeclock-workday
+ (timeclock-find-discrep (not relative))))
+
+;;;###autoload
+(defun timeclock-workday-elapsed-string (&optional show-seconds
+ relative)
+ "Return a string representing the amount of time worked today.
+Display seconds resolution if SHOW-SECONDS is non-nil. If RELATIVE is
+non-nil, the amount returned will be relative to past time worked."
+ (interactive)
+ (let ((string (timeclock-seconds-to-string
+ (timeclock-workday-elapsed relative)
+ show-seconds)))
+ (if (interactive-p)
+ (message string)
+ string)))
+
+(defun timeclock-when-to-leave (&optional today-only)
+ "Return a time value representing at when the workday ends today.
+If TODAY-ONLY is non-nil, the value returned will be relative only to
+the time worked today, and not to past time. This argument only makes
+a difference if `timeclock-relative' is non-nil."
+ (timeclock-seconds-to-time
+ (- (timeclock-time-to-seconds (current-time))
+ (timeclock-find-discrep today-only))))
+
+;;;###autoload
+(defun timeclock-when-to-leave-string (&optional show-seconds
+ today-only)
+ "Return a string representing at what time the workday ends today.
+This string is relative to the value of `timeclock-workday'. If
+NO-MESSAGE is non-nil, no messages will be displayed in the
+minibuffer. If SHOW-SECONDS is non-nil, the value printed/returned
+will include seconds. If TODAY-ONLY is non-nil, the value returned
+will be relative only to the time worked today, and not to past time.
+This argument only makes a difference if `timeclock-relative' is
+non-nil."
+ (interactive)
+ (let* ((then (timeclock-when-to-leave today-only))
+ (string
+ (if show-seconds
+ (format-time-string "%-I:%M:%S %p" then)
+ (format-time-string "%-I:%M %p" then))))
+ (if (interactive-p)
+ (message string)
+ string)))
+
+;;; Internal Functions:
+
+(defvar timeclock-project-list nil)
+(defvar timeclock-last-project nil)
+
+(defun timeclock-ask-for-project ()
+ "Ask the user for the project they are clocking into."
+ (completing-read (format "Clock into which project (default \"%s\"): "
+ (or timeclock-last-project
+ (car timeclock-project-list)))
+ (mapcar 'list timeclock-project-list)
+ nil nil nil nil (or timeclock-last-project
+ (car timeclock-project-list))))
+
+(defvar timeclock-reason-list nil)
+
+(defun timeclock-ask-for-reason ()
+ "Ask the user for the reason they are clocking out."
+ (completing-read "Reason for clocking out: "
+ (mapcar 'list timeclock-reason-list)))
+
+(defun timeclock-update-modeline ()
+ "Update the `timeclock-mode-string' displayed in the modeline."
+ (interactive)
+ (let* ((remainder (timeclock-workday-remaining))
+ (last-in (equal (car timeclock-last-event) "i")))
+ (when (and (< remainder 0)
+ (not (and timeclock-day-over
+ (equal timeclock-day-over
+ (timeclock-time-to-date
+ (current-time))))))
+ (setq timeclock-day-over
+ (timeclock-time-to-date (current-time)))
+ (run-hooks 'timeclock-day-over-hook))
+ (setq timeclock-mode-string
+ (format " %c%s%c"
+ (if last-in ?< ?[)
+ (timeclock-seconds-to-string remainder nil t)
+ (if last-in ?> ?])))))
+
+(defun timeclock-log (code &optional project)
+ "Log the event CODE to the timeclock log, at the time of call.
+If PROJECT is a string, it represents the project which the event is
+being logged for. Normally only \"out\" events specify a project."
+ (save-excursion
+ (set-buffer (find-file-noselect timeclock-file))
+ (goto-char (point-max))
+ (if (not (bolp))
+ (insert "\n"))
+ (let ((now (current-time)))
+ (insert code " "
+ (format-time-string "%Y/%m/%d %H:%M:%S" now)
+ (or (and project
+ (stringp project)
+ (> (length project) 0)
+ (concat " " project))
+ "")
+ "\n")
+ (if (equal (downcase code) "o")
+ (setq timeclock-last-period
+ (- (timeclock-time-to-seconds now)
+ (timeclock-time-to-seconds
+ (cadr timeclock-last-event)))
+ timeclock-discrepancy
+ (+ timeclock-discrepancy
+ timeclock-last-period)))
+ (setq timeclock-last-event (list code now project)))
+ (save-buffer)
+ (run-hooks 'timeclock-event-hook)))
+
+(defun timeclock-read-moment ()
+ "Read the moment under point from the timelog."
+ (save-excursion
+ (beginning-of-line)
+ (let ((eol (save-excursion (end-of-line) (point))))
+ (if (re-search-forward
+ (concat "^\\(.\\)\\s-+"
+ "\\([0-9]+\\)/\\([0-9]+\\)/\\([0-9]+\\)\\s-+"
+ "\\([0-9]+\\):\\([0-9]+\\):\\([0-9]+\\)\\s-*"
+ "\\(.*\\)") eol t)
+ (let ((code (match-string 1))
+ (year (string-to-number (match-string 2)))
+ (mon (string-to-number (match-string 3)))
+ (mday (string-to-number (match-string 4)))
+ (hour (string-to-number (match-string 5)))
+ (min (string-to-number (match-string 6)))
+ (sec (string-to-number (match-string 7)))
+ (project (match-string 8)))
+ (list code (encode-time sec min hour mday mon year)
+ project))))))
+
+(defun timeclock-time-to-seconds (time)
+ "Convert TIME to a floating point number."
+ (+ (* (car time) 65536.0)
+ (cadr time)
+ (/ (or (car (cdr (cdr time))) 0) 1000000.0)))
+
+(defun timeclock-seconds-to-time (seconds)
+ "Convert SECONDS (a floating point number) to an Emacs time structure."
+ (list (floor seconds 65536)
+ (floor (mod seconds 65536))
+ (floor (* (- seconds (ffloor seconds)) 1000000))))
+
+(defun timeclock-time-to-date (time)
+ "Convert the TIME value to a textual date string."
+ (format-time-string "%Y/%m/%d" time))
+
+(defun timeclock-last-period (&optional moment)
+ "Return the value of the last event period.
+If the last event was a clock-in, the period will be open ended, and
+growing every second. Otherwise, it is a fixed amount which has been
+recorded to disk. If MOMENT is non-nil, use that as the current time.
+This is only provided for coherency when used by
+`timeclock-discrepancy'."
+ (if (equal (car timeclock-last-event) "i")
+ (- (timeclock-time-to-seconds (or moment (current-time)))
+ (timeclock-time-to-seconds
+ (cadr timeclock-last-event)))
+ timeclock-last-period))
+
+(defun timeclock-find-discrep (&optional today-only)
+ "Find overall discrepancy from `timeclock-workday' (in seconds).
+If TODAY-ONLY is non-nil, the discrepancy will be not be relative, and
+will correspond only to the amount of time elapsed today. This is
+identical to what would be return if `timeclock-relative' were nil."
+ (let* ((now (current-time)) (first t)
+ (todays-date (timeclock-time-to-date now))
+ accum event beg last-date
+ last-date-limited last-date-seconds avg)
+ (unless timeclock-discrepancy
+ (setq timeclock-project-list nil
+ timeclock-last-project nil
+ timeclock-reason-list nil)
+ (save-excursion
+ (set-buffer (find-file-noselect timeclock-file))
+ (goto-char (point-min))
+ (setq accum 0)
+ (setq timeclock-elapsed 0)
+ (while (setq event (timeclock-read-moment))
+ (cond ((equal (car event) "h")
+ (setq last-date-limited
+ (timeclock-time-to-date (cadr event))
+ last-date-seconds
+ (string-to-number (nth 2 event))))
+ ((equal (car event) "i")
+ (when (and (nth 2 event)
+ (> (length (nth 2 event)) 0))
+ (add-to-list 'timeclock-project-list (nth 2 event))
+ (setq timeclock-last-project (nth 2 event)))
+ (let ((date (timeclock-time-to-date (cadr event))))
+ (if (and last-date
+ timeclock-relative
+ (not (equal date last-date)))
+ (setq accum (- accum
+ (if last-date-limited
+ last-date-seconds
+ timeclock-workday)))
+ (unless (or last-date (not first))
+ (setq first nil
+ accum (- accum
+ (if last-date-limited
+ last-date-seconds
+ timeclock-workday)))))
+ (setq last-date date
+ last-date-limited nil)
+ (if beg
+ (error "Error in format of timelog file!")
+ (setq beg (timeclock-time-to-seconds (cadr event))))))
+ ((equal (downcase (car event)) "o")
+ (if (and (nth 2 event)
+ (> (length (nth 2 event)) 0))
+ (add-to-list 'timeclock-reason-list (nth 2 event)))
+ (if (or timeclock-relative
+ (equal last-date todays-date))
+ (if (not beg)
+ (error "Error in format of timelog file!")
+ (setq timeclock-last-period
+ (- (timeclock-time-to-seconds (cadr event))
+ beg)
+ accum (+ timeclock-last-period accum)
+ beg nil)))
+ (if (equal last-date todays-date)
+ (setq timeclock-elapsed
+ (+ timeclock-last-period timeclock-elapsed)))))
+ (setq timeclock-last-event event
+ timeclock-last-event-workday
+ (if (equal (timeclock-time-to-date now)
+ last-date-limited)
+ last-date-seconds
+ timeclock-workday))
+ (forward-line))
+ (setq timeclock-discrepancy accum)))
+ (setq accum (if today-only
+ timeclock-elapsed
+ timeclock-discrepancy))
+ (if timeclock-last-event
+ (if (equal (car timeclock-last-event) "i")
+ (setq accum (+ accum (timeclock-last-period now)))
+ (if (not (equal (timeclock-time-to-date
+ (cadr timeclock-last-event))
+ (timeclock-time-to-date now)))
+ (setq accum (- accum timeclock-last-event-workday)))))
+ (setq accum
+ (- accum
+ (if (and timeclock-last-event
+ (equal (timeclock-time-to-date
+ (cadr timeclock-last-event))
+ (timeclock-time-to-date now)))
+ timeclock-last-event-workday
+ timeclock-workday)))))
+
+(provide 'timeclock)
+
+(run-hooks 'timeclock-load-hook)
+
+;; make sure we know the list of reasons, projects, and have computed
+;; the last event and current discrepancy.
+(if (file-readable-p timeclock-file)
+ (timeclock-reread-log))
+
+;;; timeclock.el ends here