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;;; Dotfiles --- Jakub Dlugosz emacs config
;;; Commentary:

;;; Code:


(use-package perspective
  :guix-package "emacs-perspective")

(use-package exwm
  :guix-package "emacs-exwm"
  :config
  (defun jd/exwm-update-class ()
    (exwm-workspace-rename-buffer exwm-class-name))

  (defun jd-exwm/run-in-background (command)
    (let ((command-parts (split-string command "[ ]+")))
      (apply #'call-process `(,(car command-parts) nil 0 nil ,@(cdr command-parts)))))

  (defun jd-exwm/restart-process (program-name)
    (call-process "killall" nil nil nil program-name)
    (jd-exwm/run-in-background program-name))

  (defun jd-exwm/exwm-init-hook ()
    (jd-exwm/run-in-background "nitrogen --restore")
    (start-process-shell-command "xinput" nil "xinput set-prop 'ETPS/2 Elantech Touchpad' 'Synaptics Tap Action' 1 1 1 2 1")
    (start-process-shell-command "syndaemon" nil "syndaemon -i 0.8 -K -R -d")

    (jd-exwm/restart-process "polybar")
    (jd-exwm/restart-process "nm-applet")
    (jd-exwm/restart-process "redshift-gtk -l 54.37:18.6")
    (jd-exwm/restart-process "blueman-applet"))

  (defun jd-exwm/exwm-update-title ()
    (exwm-workspace-rename-buffer exwm-title))

  (defun jd-exwm/configure-window-by-class ()
    (interactive)
    (pcase exwm-class-name
      ("firefox" (exwm-workspace-move-window 2))
      ("Brave" (exwm-workspace-move-window 2))
      ("qutebrowser" (exwm-workspace-move-window 2))
      ("discord" (exwm-workspace-move-window 5))
      ("obs" (exwm-workspace-move-window 5))
      ("Virt-manager" (exwm-workspace-move-window 4))))

  (setq exwm-workspace-number 10)

  ;; (add-hook 'exwm-init-hook #'jd-exwm/exwm-init-hook)
  (add-hook 'exwm-update-class-hook #'jd/exwm-update-class)
  (add-hook 'exwm-update-title-hook #'jd-exwm/exwm-update-title)
  (add-hook 'exwm-manage-finish-hook #'jd-exwm/configure-window-by-class)

  (require 'exwm-randr)
  (setq exwm-randr-workspace-monitor-plist '(9 "eDP-1" 0 "eDP-1"))
  (exwm-randr-enable)

  (setq exwm-input-simulation-keys
	'(([?\C-b] . [left])
	  ([?\C-f] . [right])
	  ([?\C-p] . [up])
	  ([?\C-n] . [down])
	  ([?\C-a] . [home])
	  ([?\C-e] . [end])
	  ([?\C-k] . [S-end delete])
	  ([?\M-w] . [C-c])
	  ([?\C-y] . [C-v])
	  ([?\C-v] . [next])
	  ([?\M-v] . [prior])
	  ))

  (setq exwm-input-prefix-keys
	'(?\C-x
	  ?\C-u
	  ?\C-h
	  ?\M-x
	  ?\M-`
	  ?\M-&
	  ?\M-!
	  ?\C-g
	  ?\M-:
	  ?\C-\M-j 
	  ?\C-\ ))  

  (define-key exwm-mode-map [?\C-q] 'exwm-input-send-next-key)
  (exwm-input-set-key (kbd "s-p") 'counsel-linux-app)

  (setq exwm-input-global-keys
	`(([?\s-R] . exwm-reset)


	  ([?\s-r] . (lambda (command)
		       (interactive (list (read-shell-command "$ ")))
		       (start-process-shell-command command nil command)))

	  ([?\s-W] . exwm-workspace-move-window)
	  ([?\s-w] . exwm-workspace-switch)

	  ,@(mapcar (lambda (i)
		      `(,(kbd (format "s-%d" i)) .
			(lambda ()
			  (interactive)
			  (exwm-workspace-switch-create ,i))))
		    (number-sequence 0 9))))

  (exwm-enable)
  (require 'exwm-systemtray)
  (exwm-systemtray-enable))

(use-package desktop-environment
  :guix-package "emacs-desktop-environment"
  :after exwm
  :custom
  (desktop-environment-brightness-small-increment "2%+")
  (desktop-environment-brightness-small-decrement "2%-")
  (desktop-environment-brightness-normal-increment "5%+")
  (desktop-environment-brightness-normal-decrement "5%-")

  :config
  (defun jd/dunst-show-history ()
    (interactive)
    (start-process-shell-command "dunstctl" nil "dunstctl history-pop"))
  (global-set-key (kbd "C-c N h") #'jd/dunst-show-history)

  (defun jd/dunst-close ()
    (interactive)
    (start-process-shell-command "dunstctl" nil "dunstctl close"))
  (global-set-key (kbd "C-c N c") #'jd/dunst-close)

  (defun jd/dunst-close-all ()
    (interactive)
    (start-process-shell-command "dunstctl" nil "dunstctl close-all"))
  (global-set-key (kbd "C-c N a") #'jd/dunst-close-all)

  (desktop-environment-mode))

;; (set-frame-parameter (selected-frame) 'alpha '(90 . 90))
;; (add-to-list 'default-frame-alist `(alpha . (90 . 90)))
;; (set-frame-parameter (selected-frame) 'fullscreen 'maximized)
;; (add-to-list 'default-frame-alist '(fullscreen . maximized))

(defun jd-exwm/get-color (ATTRIBUTE)
  (face-attribute 'default ATTRIBUTE))

(defun theme-to-xresources ()
  (interactive)
  (require 'term)
  (with-temp-buffer
    (insert "! Generated by theme-to-xresources\n")
    (dolist (spec
             '(("emacs.background" :background "E6")
               ("emacs.foreground" :foreground "")))
      (let ((color (jd-exwm/get-color (cadr spec))))
        (insert (format "%s: #%s%s\n"
                        (car spec)
                        (caddr spec)
                        (string-remove-prefix "#" color))))
      jd
      (write-region (point-min) (point-max) "~/.Xresources")))
  (call-process "xrdb" nil nil nil "-merge" (expand-file-name "~/.Xresources")))

(defun jd/theme-sync ()
  (interactive)
  (theme-to-xresources)
  (setq org-confirm-babel-evaluate nil)
  (org-babel-tangle-file "~/dotfiles/Desktop.org")
  (setq org-confirm-babel-evaluate 't)
  (call-process "killall" nil nil nil "dunst") ;;  TODO: prevent clear notification history 
  (jd-exwm/restart-process "polybar"))

;; (add-hook 'jd/load-theme-hook #'jd/theme-sync)
;; (add-hook 'exwm-init-hook #'jd/theme-sync)

(provide 'jd-exwm)

;;; jd-exwm.el ends here