;;; development/cpp.el -*- lexical-binding: t; -*-

;; 4. Optional: Fine-tuning Clangd
;; These arguments are passed directly to the clangd binary.
(setq lsp-clients-clangd-args
      '("-j=4"
        "--background-index"
        "--clang-tidy"
        "--completion-style=detailed"
        "--header-insertion=never"
        "--header-insertion-decorators=0"))

(after! lsp-clangd
  (set-lsp-priority! 'clangd 2)) ; Ensure clangd is preferred over ccls

;; Formatting for c++
;; This tells Doom to use the LSP server (clangd) for formatting instead of
;; a separate clang-format call via apheleia.
(setq-hook! '(c-mode-hook c++-mode-hook) +format-with-lsp t)

;; Formatting as I type
;; This enables real-time formatting as you type trigger characters like ; or }
(after! lsp-mode
  (setq lsp-enable-on-type-formatting t))

;; Ensure cc-mode settings align with clangd/clang-format
;; While clangd handles most things, basic Emacs indentation settings are
;; still useful as a fallback or for initial indentation.
(after! cc-mode
  (setq-default c-basic-offset 2)
  (c-add-style "doom-cpp"
               '("llvm"
                 (c-basic-offset . 2)
                 (c-offsets-alist . ((innamespace . 0)
                                     (access-label . -)
                                     (arglist-intro . +)
                                     (arglist-cont-nonempty . +)))))
  (add-hook! '(c-mode-hook c++-mode-hook)
    (c-set-style "doom-cpp")))

;; Add C++ documentation support
(set-docsets! 'c++-mode "C++")
(set-docsets! 'c-mode "C")