;;; packages.el --- Shell Scripts Layer packages File for Spacemacs
;;
;; Copyright (c) 2012-2022 Sylvain Benner & Contributors
;;
;; Author: Sylvain Benner <sylvain.benner@gmail.com>
;; URL: https://github.com/syl20bnr/spacemacs
;;
;; This file is not part of GNU Emacs.
;;
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;;
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with this program.  If not, see <http://www.gnu.org/licenses/>.


(defconst shell-scripts-packages
  '(
    company
    (company-shell :requires company)
    fish-mode
    flycheck
    flycheck-bashate
    ggtags
    counsel-gtags
    helm-gtags
    insert-shebang
    org
    (sh-script :location built-in)
    shfmt))

(defun shell-scripts/post-init-company ()
  (spacemacs//shell-scripts-setup-company))

(defun shell-scripts/post-init-flycheck ()
  (spacemacs/enable-flycheck 'sh-mode))

(defun shell-scripts/init-company-shell ()
  (use-package company-shell
    :defer t
    :init
    (spacemacs|add-company-backends
      :backends (company-shell company-shell-env company-fish-shell)
      :modes fish-mode)))

(defun shell-scripts/init-flycheck-bashate ()
  (use-package flycheck-bashate
    :defer t
    :init (add-hook 'sh-mode-hook 'flycheck-bashate-setup)))

(defun shell-scripts/init-fish-mode ()
  (use-package fish-mode
    :defer t))

(defun shell-scripts/init-sh-script ()
  (use-package sh-script
    :defer t
    :init
    ;; Add meaningful names for prefix categories
    (spacemacs/declare-prefix-for-mode 'sh-mode "mi" "insert")
    (unless (eq shell-scripts-backend 'lsp)
      (spacemacs/declare-prefix-for-mode 'sh-mode "mg" "goto"))

    ;; Add standard key bindings for insert commands
    (spacemacs/set-leader-keys-for-major-mode 'sh-mode
      "\\" 'sh-backslash-region
      "ic" 'sh-case
      "ii" 'sh-if
      "if" 'sh-function
      "io" 'sh-for
      "ie" 'sh-indexed-loop
      "iw" 'sh-while
      "ir" 'sh-repeat
      "is" 'sh-select
      "iu" 'sh-until
      "ig" 'sh-while-getopts)

    ;; Use sh-mode when opening `.zsh' files, and when opening Prezto runcoms.
    (dolist (pattern '("\\.zsh\\'"
                       "zlogin\\'"
                       "zlogout\\'"
                       "zpreztorc\\'"
                       "zprofile\\'"
                       "zshenv\\'"
                       "zshrc\\'"))
      (add-to-list 'auto-mode-alist (cons pattern 'sh-mode)))

    (defun spacemacs//setup-shell ()
      (when (and buffer-file-name
                 (string-match-p "\\.zsh\\'" buffer-file-name))
        (sh-set-shell "zsh")))
    (add-hook 'sh-mode-hook 'spacemacs//setup-shell)
    (add-hook 'sh-mode-hook 'spacemacs//shell-scripts-setup-backend)))

(defun shell-scripts/init-shfmt ()
  (use-package shfmt
    :defer t
    :init
    (when shell-scripts-format-on-save
      (add-hook 'sh-mode-hook 'shfmt-on-save-mode))

    ;; "=" is a group of commands for lsp users
    ;; therefore bind this function to "==" instead
    (if (eq shell-scripts-backend 'lsp)
        (spacemacs/set-leader-keys-for-major-mode 'sh-mode "==" 'shfmt-buffer)
      (spacemacs/set-leader-keys-for-major-mode 'sh-mode "=" 'shfmt-buffer))
    :config
    (when shell-scripts-shfmt-args
      (setq shfmt-arguments shell-scripts-shfmt-args))))

(defun shell-scripts/post-init-ggtags ()
  (add-hook 'sh-mode-local-vars-hook #'spacemacs/ggtags-mode-enable))

(defun shell-scripts/post-init-counsel-gtags ()
  (spacemacs/counsel-gtags-define-keys-for-mode 'sh-mode))

(defun shell-scripts/post-init-helm-gtags ()
  (spacemacs/helm-gtags-define-keys-for-mode 'sh-mode))

(defun shell-scripts/pre-init-org ()
  (spacemacs|use-package-add-hook org
    :post-config (add-to-list 'org-babel-load-languages '(shell . t))))

(defun shell-scripts/init-insert-shebang ()
  (use-package insert-shebang
    :defer t
    :init
    ;; Insert shebang must be available for non shell modes like python or
    ;; groovy but also in the major mode menu with shell specific inserts
    (spacemacs/set-leader-keys-for-major-mode 'sh-mode
      "i!" 'spacemacs/insert-shebang)
    (spacemacs/set-leader-keys "i!" 'spacemacs/insert-shebang)
    ;; we don't want to insert shebang lines automatically
    (remove-hook 'find-file-hook 'insert-shebang)))
