;;; view-conf.el --- My configurations to view things -*- lexical-binding: t; -*-

;;;###autoload
(defun durand-view-timers-or-temps (&optional arg)
  "View the list of timers or view the CPU temperature info.
If ARG is nil, view the list of timers.
If ARG is '(4), view the information about CPU temperature and
fans speed and some others.
If ARG is '(16), view the battery information."
  (interactive "P")
  (cond
   ((null arg)
    (let (fan-speed
          cpu-die-temperature
          remain
          full-capacity
          fullp
          charging
          cycle
          condition
          connected
          battery-temp)
      (with-temp-buffer
;;; NOTE: First fans information
        (insert (funcall
                 (plist-get (car (auth-source-search :host "local-computer"))
                            :secret)))
        (call-process-region
         nil nil "sudo"
         nil t nil "-S" "powermetrics"
         "-i1" "-n1" "-ssmc")
        (goto-char (point-min))
        (search-forward "Fan" nil t)
        (setf fan-speed
              (progn (re-search-forward "[[:digit:]]+" (line-end-position) t)
                     (string-to-number (match-string 0)))
              cpu-die-temperature
              (progn (re-search-forward "temperature: \\([[:digit:]]+\\.[[:digit:]]+\\)" nil t)
                     (string-to-number (match-string 1))))
;;; NOTE: Now battery charge information
        (erase-buffer)
        (call-process "system_profiler" nil t nil
                      "SPPowerDataType")
        (goto-char (point-min))
        (re-search-forward "Fully Charged: \\(.+\\)$" nil t)
        (setf fullp (match-string-no-properties 1))
        (re-search-forward "Charging: \\(.+\\)$" nil t)
        (setf charging (match-string-no-properties 1))
        (re-search-forward "Full Charge Capacity (mAh): \\([[:digit:]]+\\)$" nil t)
        (setf full-capacity (string-to-number (match-string-no-properties 1)))
        (re-search-forward "State of Charge (%): \\([[:digit:]]+\\)" nil t)
        (setf remain (string-to-number (match-string-no-properties 1)))
        (re-search-forward "Cycle Count: \\(.+\\)$" nil t)
        (setf cycle (string-to-number (match-string-no-properties 1)))
        (re-search-forward "Condition: \\(.+\\)$" nil t)
        (setf condition (match-string-no-properties 1))
        (re-search-forward "Connected: \\(.+\\)$" nil t)
        (setf connected (match-string-no-properties 1))
;;; NOTE: Now battery temperature
        (erase-buffer)
        (call-process "ioreg" nil t nil "-n" "AppleSmartBattery" "-r")
        (goto-char (point-min))
        (re-search-forward "Temperature..=." nil t)
        (re-search-forward "[[:digit:]]+" nil t)
        (setf battery-temp
              (/ (string-to-number (match-string-no-properties 0))
                 100.0)))
      (message
       (concat
        (format "fan: %d, temp: %s, battery temp: %.2f"
                fan-speed cpu-die-temperature battery-temp)
        "\n"
        (format "Full: %d, remaining: %d%s, fullp: %s, charging: %s, connected: %s, cycles: %d, condition: %s"
                full-capacity remain "%%" fullp charging connected cycle condition)))))
   ((equal arg (list 4)) (list-timers))
   (t
    (user-error "Unsupported ARG: %S" arg))))

(define-obsolete-function-alias 'durand-view-timers 'durand-view-timers-or-temps
  "2020-09-02" "View the list of timers.")

;;;###autoload
(defun durand-view-process (&optional arg)
  "View the list of processes"
  (interactive "P")
  (if arg
      (proced)
    (message "%s" (process-list))))

;;; My map for viewing

;;;###autoload
(defvar durand-view-map
  ;; Against every good principle I guess...
  (let ((map (list 'keymap "View")))
    (define-key map (vector ?v) #'view-mode)
    (define-key map (vector ?P) #'durand-view-process)
    (define-key map (vector ?t) #'durand-view-timers-or-temps)
    (define-key map (vector ?e) #'eshell)
    (define-key map (vector ?p) #'durand-chercher-pdf)
    map)
  "The keymap that is related to my custom functions about viewing.")

;;; About view-mode

(require 'view)

(define-key view-mode-map (vector 108) #'recenter-top-bottom)

(define-key view-mode-map (vector ?j) #'View-scroll-line-forward)
(define-key view-mode-map (vector ?k) #'View-scroll-line-backward)
(define-key global-map (vector 3 118) durand-view-map)

;;; Open things

;;;###autoload
(defvar durand-open-targets
  (list (list "Safari" "open" "-a" "Safari" (list "https://www.youtube.com"
                                                  "https://www.gmail.com"
                                                  "https://www.facebook.com"
                                                  "https://protesilaos.com"))
        (list "Terminal" "open" "-a" "Terminal" -1))
  "Targets to open by `durand-open-object'.

This is an association list whose elements have `car' equal to
the choice presented to the user, and have `cdr' a list that will
be passed to `make-process'.

See the documentation for `durand-open-object' for the formats of
targets.")

;;;###autoload
(defun durand-target-extra-arg (target)
  "Determine if TARGET has room for extra arguments.

This returns the list of extra argument slots, or nil if there is
none."
  (let (temp result)
    (while (consp target)
      (setq temp (car target))
      (setq target (cdr target))
      (cond
       ((eq temp -1)
        (setq result (cons -1 result)))
       ((consp temp)
        (setq result (cons temp result)))))
    (nreverse result)))

;;;###autoload
(defun durand-replace-extra-args (target extra-args)
  "Replace slots for extra-args in TARGET by EXTRA-ARGS.

This does not check if the lengths match, though in theory they
should.

And this will delete any `nil' values from the result."
  (let  (temp result)
    (while (consp target)
      (setq temp (car target))
      (setq target (cdr target))
      (cond
       ((or (eq temp -1)
            (consp temp))
        (setq result (cons (car extra-args)
                           result))
        (setq extra-args (cdr extra-args)))
       ((setq result (cons temp result)))))
    (delq nil (nreverse result))))

;;;###autoload
(defun durand-open-object (&optional arg)
  "Open something.

What can be opened is controlled by the variable
`durand-open-targets'.

If ARG is non-nil, and if the chosen target contains `-1' in the
command line options, then read a string to replace that -1. If
the chosen target has a sub-list, then use that sub-list as
options to choose from."
  (interactive "P")
  (let* ((targets durand-open-targets)
         (choice (completing-read "Open: " targets nil t))
         (commands (cdr (assoc choice targets #'string=)))
         (extra-arg-slots (durand-target-extra-arg commands))
         (extra-arg (cond
                     (arg
                      (mapcar (lambda (extra-arg-slot)
                                (cond
                                 ((eq extra-arg-slot -1)
                                  (read-string "Extra argument: "))
                                 ((consp extra-arg-slot)
                                  (completing-read
                                   "Extra argument: " extra-arg-slot))))
                              extra-arg-slots)))))
    (setq commands (durand-replace-extra-args commands extra-arg))
    (make-process :name "durand-open"
                  :buffer nil
                  :command commands)))

;;; C-c o => 3 111
(define-key global-map (vector 3 111) #'durand-open-object)

;;; Convert downloaded videos from youtube to the URL again and copy
;;; the result.

;;;###autoload
(defun durand-convert-youtube-video-to-url (video-name)
  "Convert VIDEO-NAME to its original url."
  (interactive (list (read-string "Video name: ")))
  (cond
   ((string-match "\\.[^.]+$" video-name)
    ;; with extension
    (kill-new
     (concat
      "https://www.youtube.com/watch?v="
      (substring-no-properties
       video-name
       (- (match-beginning 0) 11)
       (match-beginning 0)))))
   (t
    ;; no extension
    (kill-new
     (concat "https://www.youtube.com/watch?v="
             (substring-no-properties video-name -11))))))

;;; Wifi and Bluetooth handling

;;;###autoload
(defvar durand-wifi-on-p nil
  "If WIFI is on or not.
This is defined in \"/Users/durand/.emacs.d/view-conf.el\"")

;;;###autoload
(defvar durand-bluetooth-on-p nil
  "If BLUETOOTH is on or not.
This is defined in \"/Users/durand/.emacs.d/view-conf.el\"")

;;;###autoload
(defun durand-wifi-filter (proc output)
  "Filter function to set the wifi variable.
This should only be used for the process \"durand-wifi\".
This is defined in \"/Users/durand/.emacs.d/view-conf.el\""
  (cond
   ((string= (process-name proc) "durand-wifi"))
   ((user-error "Filter function associated with a wrong process.")))
  (setq durand-wifi-on-p (string-match "On$" output)))

;;;###autoload
(defun durand-bluetooth-filter (proc output)
  "Filter function to set the bluetooth variable.
This should only be used for the process \"durand-bluetooth\".
This is defined in \"/Users/durand/.emacs.d/view-conf.el\""
  (cond
   ((string= (process-name proc) "durand-bluetooth"))
   ((user-error "Filter function associated with a wrong process.")))
  (setq durand-bluetooth-on-p (string-match "1" output)))

;;;###autoload
(defun durand-wifi-or-bluetooth (&optional arg)
  "Check if WIFI is enabled, then ask for confirmation to toggle WIFI.
If ARG is non-nil, do the same for Bluetooth."
  (interactive "P")
  (cond
   ((null arg)
    (make-process
     :name "durand-wifi"
     :buffer nil
     :command '("networksetup" "-getairportpower" "en0")
     :filter #'durand-wifi-filter
     :sentinel #'ignore)
    (accept-process-output (get-process "durand-wifi"))
    (let* ((prompt (format "WIFI is %s. Do you want to turn WIFI %s"
                           (cond (durand-wifi-on-p "on")
                                 ("off"))
                           (cond (durand-wifi-on-p "off?")
                                 ("on?"))))
           (decision (y-or-n-p prompt)))
      (cond
       (decision
        (let ((new-state (cond (durand-wifi-on-p "off")
                               ("on"))))
          (make-process
           :name "durand-toggle-wifi"
           :buffer nil
           :command (list
                     "networksetup" "-setairportpower"
                     "en0" new-state)
           :sentinel #'ignore
           :filter #'ignore)
          (message "WIFI turned %s" new-state))))))
   (t
    (make-process
     :name "durand-bluetooth"
     :buffer nil
     :command '("blueutil" "-p")
     :filter #'durand-bluetooth-filter
     :sentinel 'ignore)
    (accept-process-output (get-process "durand-bluetooth"))
    (let* ((prompt (format "BLUETOOTH is %s. Do you want to turn BLUETOOTH %s"
                           (cond (durand-bluetooth-on-p "on")
                                 ("off"))
                           (cond (durand-bluetooth-on-p "off?")
                                 ("on?"))))
           (decision (y-or-n-p prompt)))
      (cond
       (decision
        (let ((new-state (cond (durand-bluetooth-on-p "0")
                               ("1"))))
          (make-process
           :name "durand-toggle-bluetooth"
           :buffer nil
           :command (list "blueutil" "-p" new-state)
           :sentinel 'ignore
           :filter 'ignore)
          (message "BLUETOOTH turned %s"
                   (cond (durand-bluetooth-on-p "off")
                         ("on"))))))))))

(define-key global-map (vector 3 ?w) #'durand-wifi-or-bluetooth)