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;;; kbd.el --- Elisp keybinding -*- lexical-binding: t -*-

;; Author: William Carroll <wpcarro@gmail.com>
;; Version: 0.0.1
;; Package-Requires: ((emacs "25.1"))

;;; Commentary:
;; In order to stay organized, I'm attempting to dedicate KBD prefixes to
;; specific functions.  I'm hoping I can be more deliberate with my keybinding
;; choices this way.
;;
;; Terminology:
;; For a more thorough overview of the terminology refer to `keybindings.md'
;; file.  Here's a brief overview:
;; - workspace: Anything concerning EXWM workspaces.
;; - x11: Anything concerning X11 applications.

;;; Code:

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Dependencies
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

(require 'prelude)
(require 'al)
(require 'set)
(require 'string)

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Constants
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

(defconst kbd-prefixes
  '((workspace . "s")
    (x11 . "C-s"))
  "Mapping of functions to designated keybinding prefixes to stay organized.")

;; Assert that no keybindings are colliding.
(prelude-assert
 (= (al-count kbd-prefixes)
    (->> kbd-prefixes
         al-values
         set-from-list
         set-count)))

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Library
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

(defun kbd-raw (f x)
  "Return the string keybinding for function F and appendage X.
Values for F include:
- workspace
- x11"
  (prelude-assert (al-has-key? f kbd-prefixes))
  (string-format
   "%s-%s"
   (al-get f kbd-prefixes)
   x))

(defun kbd-for (f x)
  "Return the `kbd' for function F and appendage X.
Values for F include:
- workspace
- x11"
  (kbd (kbd-raw f x)))

;; TODO: Prefer copying human-readable versions to the clipboard.  Right now
;; this isn't too useful.
(defun kbd-copy-keycode ()
  "Copy the pressed key to the system clipboard."
  (interactive)
  (message "[kbd] Awaiting keypress...")
  (let ((key (read-key)))
    (clipboard-copy (string-format "%s" key))
    (message (string-format "[kbd] \"%s\" copied!" key))))

(defun kbd-print-keycode ()
  "Prints the pressed keybinding."
  (interactive)
  (message "[kbd] Awaiting keypress...")
  (message (string-format "[kbd] keycode: %s" (read-key))))

(provide 'kbd)
;;; kbd.el ends here