;; -*- eval: (git-auto-commit-mode 1) -*-
(use-modules (ice-9 popen)
             (ice-9 rdelim))

;;; Variables
(define modkey 'mod4)
(define dmenu-cmd "dmenu")
(define dmenu-args "-b -nb '#000000' -nf '#15abc3' -sb '#e0c625' -sf '#000000'")
(define dzen-pipe 0)

;;; Macros
(define-macro (cmd command)
  `(lambda ()
     (run-command ,command)
     (reset-main-binding)))

;;; Functions
(define (reset-main-binding)
  "reset first binding"
  (ungrab-all-keys)
  (remove-all-keys)
  (main-binding)
  (grab-all-keys))

(define (get-tags)
  (let* ((file (open-input-pipe
                "TAGS=( $(herbstclient tag_status 0 | tr \":\\!.+#\" \" \") ); echo ${TAGS[@]}"))
         (tags (string-split (read-line file) #\ )))
    (close-port file)
    tags))

(define (choose-tag prompt tags)
  "Ask to choose a tag"
  (let* ((file (open-input-pipe
                (string-append "echo '" (string-join tags "\n")
                               "' | " dmenu-cmd " " dmenu-args " -p '" prompt ":'")))
         (tag (read-line file)))
    (close-port file)
    tag))

(define (switch-tags)
  "Switch to another tag"
  (close-pipe dzen-pipe)
  (set! dzen-pipe 0)
  (let* ((tags (get-tags))
         (tag (choose-tag "Switch to tag" tags)))
    (if (string? tag)
        (begin
          (if (not (member tag tags))
              (system (string-append "herbstclient add " tag)))
          (run-command (string-append "herbstclient use " tag))))
    (reset-main-binding)))

(define (kill-tag)
  "Kill a selected tag"
  (let* ((tags (get-tags))
         (tag (choose-tag "Kill tag" tags)))
    (if (string? tag)
        (begin
          (if (member tag tags)
              (run-command (string-append "herbstclient merge_tag " tag)))))
    (reset-main-binding)))

(define (move-to-tag)
  "Move selected window to another tag"
  (let* ((tags (get-tags))
         (tag (choose-tag "Move to tag" tags)))
    (if (string? tag)
        (begin
          (if (not (member tag tags))
              (system (string-append "herbstclient add " tag)))
          (run-command (string-append "herbstclient move " tag))))
    (reset-main-binding)))

;;; Maps
(define (main-binding)
  "First binding"
  (xbindkey `(,modkey shift "1") (string-append "dmenu_run -p 'Run:' " dmenu-args))
  (xbindkey-function `(,modkey x) X-functions)
  (xbindkey-function `(,modkey w) W-functions)
  (xbindkey-function `(,modkey s) S-functions)
  (xbindkey `(,modkey Return) "urxvt")
  (xbindkey '(control alt l) "i3lock -c 000000")
  (xbindkey '(XF86HomePage) "conkeror")
  (xbindkey '(XF86Mail) "mutt")
  (xbindkey '(XF86AudioPlay) "mpc toggle")
  (xbindkey '(XF86AudioStop) "mpc stop")
  (xbindkey '(XF86AudioMute) "amixer sset Master toggle")
  (xbindkey '(XF86AudioLowerVolume) "mcp volume -5")
  (xbindkey '(XF86AudioRaiseVolume) "mcp volume +5")
  (xbindkey '(XF86AudioPrev) "mpc prev")
  (xbindkey '(XF86AudioNext) "mpc next")
  (xbindkey '(XF86Tools) "ncmpcpp")
  (xbindkey-function `(,modkey g) reset-main-binding))

(define (X-functions)
  "Second binding"
  (set! dzen-pipe (open-output-pipe "dzen2"))
  (display "S-x" dzen-pipe)
  (ungrab-all-keys)
  (remove-all-keys)
  (xbindkey-function '(b) switch-tags)
  (xbindkey-function `(,modkey c) (cmd "herbstclient quit"))
  (xbindkey-function `(,modkey r) (cmd "herbstclient reload"))
  (xbindkey-function '(k) kill-tag)
  (xbindkey-function '("0") (cmd "herbstclient remove"))
  (xbindkey-function '("3") (cmd "herbstclient split horizontal 0.5"))
  (xbindkey-function '("2") (cmd "herbstclient split vertical 0.5"))
  (xbindkey-function '(space) (cmd "herbstclient cycle_layout 1"))
  (xbindkey-function '(f) (cmd "herbstclient floating toggle"))
  (xbindkey-function '(shift f) (cmd "herbstclient fullscreen toggle"))
  (xbindkey-function '(p) (cmd "herbstclient pseudotile toggle"))
  (xbindkey-function '(r) resize-map)
  (xbindkey-function '(m) move-to-tag)
  (xbindkey-function `(,modkey g) reset-main-binding)
  (grab-all-keys))

(define (W-functions)
  (ungrab-all-keys)
  (remove-all-keys)
  (xbindkey-function '(k) (cmd "herbstclient close"))
  (xbindkey-function '(w) (cmd "herbstclient cycle"))
  (xbindkey-function '(o) (cmd "herbstclient cycle_all +1"))
  (xbindkey-function '(b) (cmd "herbstclient focus left"))
  (xbindkey-function '(n) (cmd "herbstclient focus down"))
  (xbindkey-function '(p) (cmd "herbstclient focus up"))
  (xbindkey-function '(f) (cmd "herbstclient focus right"))
  (xbindkey-function '(shift b) (cmd "herbstclient shift left"))
  (xbindkey-function '(shift n) (cmd "herbstclient shift down"))
  (xbindkey-function '(shift p) (cmd "herbstclient shift up"))
  (xbindkey-function '(shift f) (cmd "herbstclient shift right"))
  (xbindkey-function `(,modkey g) reset-main-binding)
  (grab-all-keys))

(define (S-functions)
  (ungrab-all-keys)
  (remove-all-keys)
  (xbindkey-function '(o) (cmd "herbstclient cycle_monitor"))
  (xbindkey-function `(,modkey g) reset-main-binding)
  (grab-all-keys))

(define (P-functions)
  (ungrab-all-keys)
  (remove-all-keys)

  (grab-all-keys))

(define (resize-map)
  (ungrab-all-keys)
  (remove-all-keys)
  (xbindkey `(,modkey b) "herbstclient resize left +0.05")
  (xbindkey `(,modkey n) "herbstclient rezise down +0.05")
  (xbindkey `(,modkey p) "herbstclient resize up +0.05")
  (xbindkey `(,modkey f) "herbstclient resize right +0.05")
  (xbindkey-function '(Return) reset-main-binding)
  (xbindkey-function `(,modkey g) reset-main-binding)
  (grab-all-keys))

;;; Main
(main-binding)