;;; lsp.el --- Language server protocol. -*- lexical-binding: t; -*-
;;; Commentary:
;;; Code: https://github.com/emacs-lsp/lsp-mode

(use-package lsp-mode
  :pin "MELPA"
  :defer
  :commands lsp
  :hook ((lsp-after-open-hook . lsp-enable-imenu))
  :config
  (validate-setq
   ;; Automatically try to figure out project root.
   lsp-auto-guess-root t
   ;; Location of persistent LSP session.
   lsp-session-file (path-join *user-cache-directory* "lsp-session")
   ;; Disable yasnippet integration.
   lsp-enable-snippet nil
   ;; Don't watch files for changes, prevents freeze during compilation.
   lsp-enable-file-watchers nil
   ;; Disable headerline
   lsp-headerline-breadcrumb-enable nil
   ;; Increase the amount of data that can be read from a language server.
   read-process-output-max (* 3 1024 1024))

  ;; https://github.com/emacs-lsp/lsp-ui/
  ;; This package contains all the higher level UI modules of lsp-mode, like flycheck support and code lenses.
  (use-package lsp-ui
    :hook (lsp-mode-hook . lsp-ui-mode)
    :config
    ;; https://emacs-lsp.github.io/lsp-mode/tutorials/how-to-turn-off/
    (validate-setq
     lsp-modeline-code-actions-enable nil
     lsp-ui-sideline-enable nil
     lsp-ui-doc-delay 3
     lsp-ui-doc-position 'bottom))

  (use-package lsp-treemacs
    :ensure t
    :defer t
    ;; :after (lsp treemacs)
    :custom
    (lsp-treemacs-sync-mode 1)
    )
  )

(provide 'utilities/lsp)
;;; lsp.el ends here