;;; syd-lang-nix.el -*- lexical-binding: t; -*-

(require 'syd-handle-repl)
(require 'syd-handle-lookup)

(defun syd-nix-open-nix-repl ()
  (interactive)
  ;; If possible, cd to the project root.  Flakes force you to use relative
  ;; paths, which can be annoying in combination with
  ;;
  ;; REVIEW: Should this be something handled by `syd--call-repl-handler'?
  (-some-> (syd-project-root) cd)
  (nix-repl)
  (current-buffer))

(use-package nix-mode
  :mode "\\.nix\\'"
  :init
  (add-to-list 'auto-mode-alist
               (cons (rx "/flake.lock'")
                     (if (fboundp 'json-mode)
                         'json-mode
                       'js-mode)))
  :config
  (add-hook 'nix-mode-hook #'lsp)
  (set-popup-rule! "^\\*nixos-options-doc\\*$" :ttl 0 :quit t)
  (set-repl-handler! 'nix-mode #'syd-nix-open-nix-repl))

(provide 'syd-lang-nix)