;;; doom-themes-treemacs.el --- description -*- lexical-binding: t; -*-

(defgroup doom-treemacs nil
  "Options for doom's treemacs theme"
  :group 'doom-themes)

(defcustom doom-treemacs-enable-variable-pitch t
  "If non-nil, the labels for files, folders and projects are displayed with the
variable-pitch face."
  :type 'boolean
  :group 'doom-treemacs)

(defcustom doom-treemacs-line-spacing 1
  "Line-spacing for treemacs buffer."
  :type 'symbol
  :group 'doom-treemacs)

(defun doom--treemacs-no-fringes ()
  "Remove fringes in treemacs. They get reset each time you select the neotree
pane and are highlighted incorrectly when used with `solaire-mode'."
  (when (display-graphic-p)
    (set-window-fringes nil 0 0)))

(defun doom--treemacs-setup (&rest _)
  (setq line-spacing doom-treemacs-line-spacing
        tab-width 1))

(defun doom--treemacs-hide-modeline ()
  (setq mode-line-format nil))

(defun doom--treemacs-variable-pitch-labels (&rest _)
  (when doom-treemacs-enable-variable-pitch
    (dolist (face '(treemacs-root-face
                    treemacs-git-unmodified-face
                    treemacs-git-modified-face
                    treemacs-git-renamed-face
                    treemacs-git-ignored-face
                    treemacs-git-untracked-face
                    treemacs-git-added-face
                    treemacs-git-conflict-face
                    treemacs-directory-face
                    treemacs-directory-collapsed-face
                    treemacs-file-face))
      (let ((faces (face-attribute face :inherit nil)))
        (set-face-attribute face nil :inherit `(variable-pitch ,@(delq 'unspecified (doom-enlist faces))))))))

(eval-after-load 'treemacs
  (lambda ()
    (unless (require 'all-the-icons nil t)
      (error "all-the-icons isn't installed"))

    ;; Silence plistp error with all-the-icons
    (advice-add #'treemacs--pulse-png-advice :override #'ignore)

    (add-hook 'treemacs-mode-hook #'doom--treemacs-setup)
    (add-hook 'treemacs-mode-hook #'doom--treemacs-hide-modeline)

    ;; no fringes in treemacs window
    (add-hook 'treemacs-mode-hook #'doom--treemacs-no-fringes)
    (advice-add #'treemacs-select-window :after #'doom--treemacs-no-fringes)

    ;; variable-pitch labels for files/folders
    (doom--treemacs-variable-pitch-labels)
    (advice-add #'load-theme :after #'doom--treemacs-variable-pitch-labels)

    ;; minimalistic atom-inspired icon theme
    (let ((all-the-icons-default-adjust 0))
      (setq treemacs-icon-root-png
            (concat " " (all-the-icons-octicon "repo" :v-adjust -0.1 :height 1.6
                                               :face 'font-lock-string-face)
                    " ")

            treemacs-icon-tag-open-png
            (all-the-icons-octicon "chevron-down" :v-adjust 0.1)
            treemacs-icon-tag-closed-png
            (all-the-icons-octicon "chevron-right" :v-adjust 0.1)

            treemacs-indentation-string "  "
            treemacs-indentation 1

            treemacs-icon-open-png
            (concat (all-the-icons-octicon "file-directory" :v-adjust 0 :height 1.15)
                    " ")
            treemacs-icon-closed-png
            (concat (all-the-icons-octicon "file-directory" :v-adjust 0 :height 1.15 :face 'font-lock-doc-face)
                    " ")

            treemacs-icon-tag-node-open-png
            (concat (all-the-icons-octicon "chevron-down"  :height 0.75 :face 'font-lock-keyword-face)
                    "\t")
            treemacs-icon-tag-node-closed-png
            (concat (all-the-icons-octicon "chevron-right" :height 0.9  :face 'font-lock-keyword-face)
                    "\t")
            treemacs-icon-tag-leaf-png "- ")

      ;; File type icons
      (setq treemacs-icons-hash (make-hash-table :size 200 :test #'equal)
            treemacs-icon-fallback (concat (all-the-icons-octicon "file-code" :height 1.2 :v-adjust 0) " ")
            treemacs-icon-text     treemacs-icon-fallback)

      (treemacs-define-custom-icon (all-the-icons-octicon "file-media" :height 1.2)
                                   "png" "jpg" "jpeg" "gif" "ico" "tif" "tiff" "svg" "bmp"
                                   "psd" "ai" "eps" "indd" "mov" "avi" "mp4" "webm" "mkv"
                                   "wav" "mp3" "ogg" "midi")

      (treemacs-define-custom-icon (all-the-icons-octicon "file-text" :height 1.2)
                                   "md" "markdown" "rst" "log" "org" "txt"
                                   "CONTRIBUTE" "LICENSE" "README" "CHANGELOG")

      (treemacs-define-custom-icon (all-the-icons-octicon "file-code" :height 1.2)
                                   "yaml" "yml" "json" "xml" "toml" "cson" "ini"
                                   "tpl" "erb" "mustache" "twig" "ejs" "mk" "haml" "pug" "jade"))))

(provide 'doom-themes-treemacs)
;;; doom-themes-treemacs.el ends here