;;; rust-conf.el --- Configurations of rust-mode     -*- lexical-binding: t; -*-

;; Copyright (C) 2022  李俊緯

;; Author: 李俊緯 <mmemmew@gmail.com>
;; Keywords: convenience, c, data, emulations, faces, files, languages, local, tools

;; 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 <https://www.gnu.org/licenses/>.

;;; Commentary:

;; This configures rust-mode.

;;; Code:

;;; Dependencies

(use-package "dash.el" 'dash)
(use-package "s.el" 's)
(use-package "f.el" 'f)
(require 'let-alist)
(use-package "markdown-mode" 'markdown-mode)
(require 'project)
(use-package "rust-mode" 'rust-mode)
(require 'seq)
(use-package "spinner.el" 'spinner)
(use-package "xterm-color" 'xterm-color)

;; Now this is built-in since Emacs-29.
(require 'eglot)

(define-key eglot-mode-map (kbd "C-c r") #'eglot-rename)
(define-key eglot-mode-map (vector 3 ?\C-o)
  #'eglot-code-action-organize-imports)
(define-key eglot-mode-map (kbd "C-c h") #'eldoc)

(setq eglot-autoshutdown t)

(setq eldoc-echo-area-use-multiline-p nil)

;; NOTE: I have manually commented out the line which requires
;; lsp-mode.
(use-package "rustic" 'rustic)
(setq rustic-lsp-client 'eglot)
(setq rustic-format-on-save t)
(setq rustic-lsp-setup-p nil)

(add-hook 'eglot-managed-mode-hook #'durand-rust-mode-hook)

(defun durand-rust-mode-hook ()
  "Set up basic settings."
  ;; (remove-hook 'eldoc-documentation-functions
  ;;              #'eglot-hover-eldoc-function)
  )

;;; Fix a weird function

(defun durand-rustic-cargo-doc-a ()
  "Open the documentation for the current project in a browser.
The documentation is built if necessary.
Modified by Durand -- 2022-02-09 21:43:19.966224"
  (interactive)
  (if (y-or-n-p "Open docs for dependencies as well?")
      ;; open docs only works with synchronous process
      (shell-command (mapconcat #'identity
                                (list (rustic-cargo-bin) "doc --open")
                                " "))
    (shell-command (mapconcat #'identity
                              (list (rustic-cargo-bin)
                                    "doc --open --no-deps")
                              " "))))

(advice-add #'rustic-cargo-doc :override
            #'durand-rustic-cargo-doc-a)

(provide 'rust-conf)
;;; rust-conf.el ends here