;; -*- lexical-binding: t -*-
;; Copyright © 2018-2025  Uko Koknevics

;; Make sure early-init has been loaded.
(unless (boundp 'loaded-early-init)
  (load (expand-file-name "early-init" (file-name-directory load-file-name)) nil t))

(when (version< emacs-version "29.1")
  (error "Using %s.  Minimum supported version is 29.1."
         (emacs-version)))

(setq-default user-full-name "Uko Kokņevičs"
	          user-email-address "perkontevs@gmail.com")

(defconst +emacs29+ (version< emacs-version "30.0"))

(defconst +linux+ (eq system-type 'gnu/linux))
(defconst +mac+ (eq system-type 'darwin))
(defconst +bsd+ (or +mac+ (eq system-type 'berkeley-unix)))
(defconst +windows+ (memq system-type '(cygwin windows-nt ms-dos)))

(defconst base-dir user-emacs-directory)
(defconst local-dir (expand-file-name "local" base-dir))
(defconst local-config-dir (expand-file-name "config" local-dir))
(defconst tmp-dir (expand-file-name "tmp" local-dir))
(defconst shared-dir (expand-file-name "shared" base-dir))

;; TODO: Check how to do add smth like `:advice (fn :around advice)` sometime
(require 'use-package)
(use-package use-package)

;; Early configurations
(setq shared-game-score-directory (expand-file-name "shared-game-score" shared-dir))

(use-package cus-edit
  :defer t
  :custom
  (custom-file (expand-file-name "custom.el" shared-dir)))

(defun $adv-write-to-sane-paths (fn &rest args)
  "Write 3rd party files to `local-config-dir` to keep `user-emacs-directory` clean."
  (let ((user-emacs-directory local-config-dir)
        (user-init-file custom-file))
    (apply fn args)))

(use-package files
  :defer t
  :custom
  (auto-mode-case-fold nil)
  (auto-save-file-name-transforms `((".*" ,tmp-dir t)))
  (backup-directory-alist `((".*" . ,tmp-dir)))
  (major-mode-remap-alist '((c-mode . c-ts-mode)
                            (c-or-c++-mode . c-or-c++-ts-mode)
                            (c++-mode . c++-ts-mode)
                            (cmake-mode . cmake-ts-mode)
                            (csharp-mode . csharp-ts-mode)
                            (css-mode . css-ts-mode)
                            (dockerfile-mode . dockerfile-ts-mode)
                            (go-mode . go-ts-mode)
                            (go-mod-mode . go-mod-ts-mode)
                            (html-mode . mhtml-mode)
                            (java-mode . java-ts-mode)
                            (js-mode . js-ts-mode)
                            (json-mode . json-ts-mode)
                            (python-mode . python-ts-mode)
                            (ruby-mode . ruby-ts-mode)
                            (rust-mode . rust-ts-mode)
                            (yaml-mode . yaml-ts-mode)
                            (toml-mode . toml-ts-mode)
                            (tsx-mode . tsx-ts-mode)
                            (typescript-mode . typescript-ts-mode)))
  :config
  (advice-add #'locate-user-emacs-file :around #'$adv-write-to-sane-paths))

(use-package novice
  :defer t
  :config
  (advice-add #'enable-command :around #'$adv-write-to-sane-paths)
  (advice-add #'disable-command :around #'$adv-write-to-sane-paths))

;; Improve Emacs security somewhat
(setq gnutls-min-prime-bits 3072
      gnutls-verify-error (and (fboundp 'gnutls-available-p)
                               (gnutls-available-p)
                               (not (getenv-internal "INSECURE")))
      tls-checktrust gnutls-verify-error
      tls-program '("openssl s_client -connect %h:%p -CAfile %t -nbio -no_ssl3 -no_tls1 -no_tls1_1 -ign_eof"
                    "gnutls-cli -p %p --dh-bits=3072 --ocsp --x509cafile=%t --strict-tofu --priority='SECURE128:+SECURE192:-VERS-ALL:+VERS-TLS1.2:+VERS-TLS1.3' %h"
                    "gnutls-cli -p %p %h"))

(when (boundp 'libgnutls-version)
  (setq gnutls-algorithm-priority
	    (concat "SECURE128:+SECURE192:-VERS-ALL"
		        (if (and (not +windows+)
			             (>= libgnutls-version 30605))
		            ":+VERS-TLS1.3:+VERS-TLS1.2"
		          ":+VERS-TLS1.2"))))

(when +mac+
  (setq mac-option-modifier 'meta
        mac-command-modifier 'super))

(when (file-exists-p custom-file)
  (add-hook 'elpaca-after-init-hook (lambda () (load custom-file 'noerror))))

(use-package auth-source
  :defer t
  :custom
  ;; Make sure authinfo is GPG'd
  (auth-sources (list (expand-file-name "authinfo.gpg" local-config-dir)
                      "~/.authinfo.gpg")))

(use-package ffap
  :defer t
  :custom
  ;; Don't ping random stuff
  (ffap-machine-p-known 'reject))

(use-package startup
  :defer t
  :custom
  (inhibit-default-init t)
  (inhibit-startup-echo-area-message user-login-name)
  (inhibit-startup-screen t)
  (initial-major-mode 'fundamental-mode)
  (initial-scratch-message nil))

;; Don't draw stuff in other windows.
(setq-default cursor-in-non-selected-windows nil)
(setq highlight-nonselected-windows nil)

;; Faster scrolling
(setq fast-but-imprecise-scrolling t)

;; Inhibit frame resizing
(setq frame-inhibit-implied-resize t)

;; Don’t compact font caches during GC.
(setq inhibit-compacting-font-caches t)

(setq read-process-output-max (* 64 1024))

;; Don't fontify if stuck on reading input
(setq redisplay-skip-fontification-on-input t)

(when +windows+
  (setq w32-get-true-file-attributes nil
        w32-pipe-read-delay 0
        w32-pipe-buffer-size read-process-output-max))

;; Install elpaca
(progn
  (defvar elpaca-installer-version 0.10)
  (defvar elpaca-directory (expand-file-name "elpaca/" local-dir))
  (defvar elpaca-builds-directory (expand-file-name "builds/" elpaca-directory))
  (defvar elpaca-repos-directory (expand-file-name "repos/" elpaca-directory))
  (defvar elpaca-lock-file (expand-file-name "elpaca-lock.el" shared-dir))
  (defvar elpaca-order '(elpaca :repo "https://github.com/progfolio/elpaca.git"
                                :ref nil :depth 1 :inherit ignore
                                :files (:defaults "elpaca-test.el" (:exclude "extensions"))
                                :build (:not elpaca--activate-package)))
  (let* ((repo  (expand-file-name "elpaca/" elpaca-repos-directory))
         (build (expand-file-name "elpaca/" elpaca-builds-directory))
         (order (cdr elpaca-order))
         (default-directory repo))
    (add-to-list 'load-path (if (file-exists-p build) build repo))
    (unless (file-exists-p repo)
      (make-directory repo t)
      (when (<= emacs-major-version 28) (require 'subr-x))
      (condition-case-unless-debug err
          (if-let* ((buffer (pop-to-buffer-same-window "*elpaca-bootstrap*"))
                    ((zerop (apply #'call-process `("git" nil ,buffer t "clone"
                                                    ,@(when-let* ((depth (plist-get order :depth)))
                                                        (list (format "--depth=%d" depth) "--no-single-branch"))
                                                    ,(plist-get order :repo) ,repo))))
                    ((zerop (call-process "git" nil buffer t "checkout"
                                          (or (plist-get order :ref) "--"))))
                    (emacs (concat invocation-directory invocation-name))
                    ((zerop (call-process emacs nil buffer nil "-Q" "-L" "." "--batch"
                                          "--eval" "(byte-recompile-directory \".\" 0 'force)")))
                    ((require 'elpaca))
                    ((elpaca-generate-autoloads "elpaca" repo)))
              (progn (message "%s" (buffer-string)) (kill-buffer buffer))
            (error "%s" (with-current-buffer buffer (buffer-string))))
        ((error) (warn "%s" err) (delete-directory repo 'recursive))))
    (unless (require 'elpaca-autoloads nil t)
      (require 'elpaca)
      (elpaca-generate-autoloads "elpaca" repo)
      (load "./elpaca-autoloads")))
  (add-hook 'after-init-hook #'elpaca-process-queues)
  (elpaca `(,@elpaca-order))
  (when +windows+
    (elpaca-no-symlink-mode)))

(progn
  (elpaca elpaca-use-package
    (elpaca-use-package-mode))
  (elpaca-wait))

;; Builtins that I update with elpaca.
;; Consider adding some to elpaca-ignored-dependencies if problems arise.
(progn
  (defun arkta/elpaca-build-with-unload (pkg)
    (append (butlast (if (file-exists-p (file-name-concat elpaca-builds-directory
                                                          (symbol-name pkg)))
                         elpaca--pre-built-steps
                       elpaca-build-steps))
            (list `(lambda (e)
                     (when (featurep ',pkg)
                       (unload-feature ',pkg t))
                     (elpaca--continue-build e))
                  'elpaca--activate-package)))
  (use-package seq
    :ensure `(seq :build ,(arkta/elpaca-build-with-unload 'seq)))
  (use-package transient
    :ensure `(transient :build ,(arkta/elpaca-build-with-unload 'transient))))

(defun arkta/update-packages ()
  (interactive)
  (elpaca-update-all)
  (elpaca-write-lock-file elpaca-lock-file))

(defun arkta/fix-versions ()
  (interactive)
  (elpaca-write-lock-file elpaca-lock-file))

;; compat
(use-package compat-30
  :if +emacs29+
  :ensure 'compat)

;; Helper functions
(defmacro defsetter (name &rest emacs-names)
  (let ((name (intern (concat "set-" (symbol-name name)))))
    `(defun ,name (value &optional default)
       (if default
           (progn
             ,@(mapcar (lambda (name) `(setq-default ,name value)) emacs-names))
         ,@(mapcar (lambda (name) `(setq ,name value)) emacs-names)))))

(defsetter fill-width fill-column)
(defsetter tab-usage indent-tabs-mode)
(defsetter tab-width c-basic-offset nasm-offset standard-indent tab-width)

;; Miscellany

(set-fill-width 120 t)
(set-tab-usage nil t)
(set-tab-width 4 t)

;; HIC SVNT DRACONES

(require 'arkta-cosmetic)
(require 'arkta-progmodes)
(require 'arkta-project)

(use-package ace-window
  :ensure t
  :bind (([remap other-window] . ace-window)
         ("C-x o" . ace-window)))

(use-package amx
  :ensure t
  :config
  (amx-mode +1))

(use-package company
  :ensure t
  :custom
  (company-format-margin-function #'company-text-icons-margin)
  (company-text-face-extra-attributes '(:weight bold))
  (company-text-icons-add-background t)
  (company-tooltip-flip-when-above nil)
  (company-tooltip-limit 6)
  (company-tooltip-minimum 6)
  (company-tooltip-offset-display 'lines)
  :config
  (global-company-mode +1))

(use-package compile
  :ensure nil
  :bind (("C-c k" . compile))
  :custom
  (compilation-scroll-output 'first-error))

(use-package copyright
  :ensure nil
  :init
  (defun arkta/maybe-fix-copyright ()
    (save-mark-and-excursion
      (copyright-update)
      (copyright-fix-years)))
  :hook (before-save . arkta/maybe-fix-copyright)
  :custom
  (copyright-names-regexp "Eris\\|Ukko\\|Uko\\|Free Software")
  (copyright-year-ranges t))

(use-package counsel
  :ensure t
  :after amx
  :config
  (counsel-mode +1))

(use-package dashboard
  :ensure t
  :demand t
  :hook (server-after-make-frame . dashboard-open)
  :custom
  (dashboard-center-content nil)
  (dashboard-startup-banner (expand-file-name "logo.png" user-emacs-directory))
  (dashboard-items '((projects . 5) (recents . 5) (bookmarks . 5)))
  (dashboard-projects-backend 'project-el)
  (dashboard-remove-missing-entry nil)
  (dashboard-set-heading-icons t)
  (dashboard-set-file-icons t)
  (dashboard-set-init-info t)
  :config
  (dashboard-setup-startup-hook))

(use-package editorconfig
  :ensure t
  :config
  (editorconfig-mode +1))

(use-package eglot
  :ensure nil
  :hook ((gdscript-mode go-ts-mode) . eglot-ensure)
  :custom
  (eglot-ignored-server-capabilities '(:documentFormattingProvider
                                       :documentRangeFormattingProvider
                                       :documentOnTypeFormattingProvider))
  (eglot-autoshutdown t))

(use-package elpher
  :ensure t
  :commands (elpher)
  :custom (elpher-default-url-type "gemini"))

(use-package envrc
  :ensure t
  ;; This actually has to be hooked to after-init to be one of the first minor modes enabled
  :hook (elpaca-after-init . envrc-global-mode))

(use-package forge
  :ensure t
  :after magit)

(use-package gcmh
  :ensure t
  :custom
  (gcmh-idle-delay 'auto)
  (gcmh-auto-idle-delay-factor 10)
  (gcmh-high-cons-threshold (* 16 1024 1024))
  :config
  (gcmh-mode +1))

(use-package ibuffer
  :ensure nil
  :bind (("C-x C-b" . ibuffer)
         ([remap list-buffers] . ibuffer)))

(use-package ivy
  :ensure t
  :after (counsel swiper)
  :demand t
  :bind (("C-c r" . ivy-resume)
         ("C-c v" . ivy-push-view)
         ("C-c V" . ivy-pop-view))
  :custom
  (ivy-use-virtual-buffers t)
  (ivy-count-format "(%d/%d) ")
  :config
  (ivy-mode +1))

(use-package magit
  ;; TODO: Do some proper setup
  :ensure t)

(use-package simple
  :ensure nil
  :hook ((text-mode . turn-on-auto-fill)
         (before-save . delete-trailing-whitespace))
  :custom
  (backward-delete-char-untabify-method nil))

(use-package swiper
  :ensure t
  :bind (([remap isearch-forward] . swiper-isearch)
         ([remap isearch-backward] . swiper-isearch-backward)
         ("C-s" . swiper-isearch)
         ("C-r" . swiper-isearch-backward)))

(use-package treemacs
  :ensure t
  :commands (treemacs treemacs-select-window)
  :custom
  (treemacs-select-when-already-in-treemacs 'next-or-back)
  :bind (("C-c SPC"   . treemacs-select-window)
         ("C-c C-SPC" . treemacs-select-window)))

(use-package treesit
  :ensure nil
  :config
  (setq treesit-extra-load-path
        (list (expand-file-name "tree-sitter" local-config-dir)))
  (setq treesit-language-source-alist
        '((c "https://github.com/tree-sitter/tree-sitter-c.git")
          (cmake "https://github.com/uyha/tree-sitter-cmake.git")
          (cpp "https://github.com/tree-sitter/tree-sitter-cpp.git")
          (c-sharp "https://github.com/tree-sitter/tree-sitter-c-sharp.git")
          (css "https://github.com/tree-sitter/tree-sitter-css.git")
          (dockerfile "https://github.com/camdencheek/tree-sitter-dockerfile.git")
          (go "https://github.com/tree-sitter/tree-sitter-go.git")
          (gomod "https://github.com/camdencheek/tree-sitter-go-mod.git")
          (java "https://github.com/tree-sitter/tree-sitter-java.git")
          (javascript "https://github.com/tree-sitter/tree-sitter-javascript.git")
          (json "https://github.com/tree-sitter/tree-sitter-json.git")
          (python "https://github.com/tree-sitter/tree-sitter-python.git")
          (ruby "https://github.com/tree-sitter/tree-sitter-ruby.git")
          (rust "https://github.com/tree-sitter/tree-sitter-rust.git")
          (toml "https://github.com/ikatyang/tree-sitter-toml.git")
          (tsx "https://github.com/tree-sitter/tree-sitter-typescript.git" nil "tsx/src")
          (typescript "https://github.com/tree-sitter/tree-sitter-typescript.git" nil "typescript/src")
          (typst "https://github.com/uben0/tree-sitter-typst")
          (yaml "https://github.com/ikatyang/tree-sitter-yaml.git")))
  (mapc (lambda (spec)
          (let ((name (car spec)))
            (unless (treesit-language-available-p name)
              (treesit-install-language-grammar name))))
        treesit-language-source-alist))

(use-package warnings
  :ensure nil
  :custom (warning-suppress-types '((comp))))