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; Packages related
(require 'package) ; this goes in chemacs2 init -- DO NOT UNCOMMENT
(add-to-list 'package-archives '("melpa" . "https://melpa.org/packages/") t) ; this goes in chemacs2 init -- DO NOT UNCOMMENT
(package-initialize) ; this goes in chemacs2 init -- DO NOT UNCOMMENT
(add-to-list 'package-selected-packages
             '(helpful ido-completing-read+ dired-rainbow dired-rainbow-listing dired-single dash s origami diminish persp-mode modus-themes transpose-frame use-package)
)
(require 'use-package)

; helper functions
(require 'subr-x)
(setq kmn/is-termux
      (string-suffix-p "Android" (string-trim (shell-command-to-string "uname -a"))))

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; dired adjustments
(use-package dired-rainbow
  :defer 4
  :config
  (dired-rainbow-define-chmod directory "#0074d9" "d.*")
  (dired-rainbow-define html "#eb5286"
                        ("css" "less" "sass" "scss" "htm" "html" "jhtm" "mht"
                         "eml" "mustache" "xhtml"))
  (dired-rainbow-define xml "#f2d024"
                        ("xml" "xsd" "xsl" "xslt" "wsdl" "bib" "json" "msg"
                         "pgn" "rss" "yaml" "yml" "rdata" "sln" "csproj"
                         "meta" "unity" "tres" "tscn" "import" "godot"))
  (dired-rainbow-define document "#9561e2"
                        ("docm" "doc" "docx" "odb" "odt" "pdb" "pdf" "ps"
                         "rtf" "djvu" "epub" "odp" "ppt" "pptx" "xls" "xlsx"
                         "vsd" "vsdx" "plantuml"))
  (dired-rainbow-define markdown "#4dc0b5"
                        ("org" "org_archive" "etx" "info" "markdown" "md"
                         "mkd" "nfo" "pod" "rst" "tex" "texi" "textfile" "txt"))
  (dired-rainbow-define database "#6574cd"
                        ("xlsx" "xls" "csv" "accdb" "db" "mdb" "sqlite" "nc"))
  (dired-rainbow-define media "#de751f"
                        ("mp3" "mp4" "MP3" "MP4" "avi" "mpeg" "mpg" "flv"
                         "ogg" "mov" "mid" "midi" "wav" "aiff" "flac" "mkv"))
  (dired-rainbow-define image "#f66d9b"
                        ("tiff" "tif" "cdr" "gif" "ico" "jpeg" "jpg" "png"
                         "psd" "eps" "svg"))
  (dired-rainbow-define log "#c17d11"
                        ("log" "log.1" "log.2" "log.3" "log.4" "log.5" "log.6"
                         "log.7" "log.8" "log.9"))
  (dired-rainbow-define shell "#f6993f"
                        ("awk" "bash" "bat" "fish" "sed" "sh" "zsh" "vim"))
  (dired-rainbow-define interpreted "#38c172"
                        ("py" "ipynb" "hy" "rb" "pl" "t" "msql" "mysql"
                         "pgsql" "sql" "r" "clj" "cljs" "cljc" "cljx" "edn"
                         "scala" "js" "jsx" "lua" "fnl" "gd"))
  (dired-rainbow-define compiled "#6cb2eb"
                        ("asm" "cl" "lisp" "el" "c" "h" "c++" "h++" "hpp"
                         "hxx" "m" "cc" "cs" "cp" "cpp" "go" "f" "for" "ftn"
                         "f90" "f95" "f03" "f08" "s" "rs" "active" "hs"
                         "pyc" "java"))
  (dired-rainbow-define executable "#8cc4ff"
                        ("com" "exe" "msi"))
  (dired-rainbow-define compressed "#51d88a"
                        ("7z" "zip" "bz2" "tgz" "txz" "gz" "xz" "z" "Z" "jar"
                         "war" "ear" "rar" "sar" "xpi" "apk" "xz" "tar" "rar"))
  (dired-rainbow-define packaged "#faad63"
                        ("deb" "rpm" "apk" "jad" "jar" "cab" "pak" "pk3" "vdf"
                         "vpk" "bsp"))
  (dired-rainbow-define encrypted "#f2d024"
                        ("gpg" "pgp" "asc" "bfe" "enc" "signature" "sig" "p12"
                         "pem"))
  (dired-rainbow-define fonts "#f6993f"
                        ("afm" "fon" "fnt" "pfb" "pfm" "ttf" "otf" "woff"
                         "woff2" "eot"))
  (dired-rainbow-define partition "#e3342f"
                        ("dmg" "iso" "bin" "nrg" "qcow" "toast" "vcd" "vmdk"
                         "bak"))
  (dired-rainbow-define vc "#6cb2eb"
                        ("git" "gitignore" "gitattributes" "gitmodules"))
  (dired-rainbow-define config "#5040e2"
                        ("cfg" "conf"))
  (dired-rainbow-define certificate "#6cb2eb"
                        ("cer" "crt" "pfx" "p7b" "csr" "req" "key"))
  (dired-rainbow-define junk "#7F7D7D"
                        ("DS_Store" "projectile"))
  (dired-rainbow-define icloud "#e3342f" ("icloud"))
  (dired-rainbow-define-chmod executable-unix "#38c172" "-.*x.*")
)

; use single buffer for nav damnit
(require 'dired-single)
(defun my-dired-init ()
  "Bunch of stuff to run for dired, either immediately or when it's
   loaded."
  ;; <add other stuff here>
  (define-key dired-mode-map [remap dired-find-file]
    'dired-single-buffer)
  (define-key dired-mode-map [remap dired-mouse-find-file-other-window]
    'dired-single-buffer-mouse)
  (define-key dired-mode-map [remap dired-up-directory]
    'dired-single-up-directory))

;; if dired's already loaded, then the keymap will be bound
(if (boundp 'dired-mode-map)
    ;; we're good to go; just add our bindings
    (my-dired-init)
  ;; it's not loaded yet, so add our bindings to the load-hook
  (add-hook 'dired-load-hook 'my-dired-init))

; icons / colors / line tunes
(add-hook 'dired-mode-hook
          (lambda ()
            (interactive)
            (when kmn/is-termux (all-the-icons-dired-mode 1))
            (hl-line-mode 1)))

(add-to-list 'load-path (expand-file-name "dired-rainbow-listing" user-emacs-directory))
(require 'dired-rainbow-listing)
(add-hook 'dired-mode-hook #'dired-rainbow-listing-mode)

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; origami config
(use-package origami
  :demand
  :config
  (define-prefix-command 'origami-mode-map)
  (define-key ctl-x-map (kbd "z") 'origami-mode-map)
  (global-origami-mode)
  :bind
  (:map origami-mode-map
   ("o" . origami-open-node)
   ("O" . origami-open-node-recursively)
   ("c" . origami-close-node)
   ("C" . origami-close-node-recursively)
   ("a" . origami-toggle-node)
   ("t" . origami-recursively-toggle-node)
   ("R" . origami-open-all-nodes)
   ("M" . origami-close-all-nodes)
   ("v" . origami-show-only-node)
   ("k" . origami-previous-fold)
   ("j" . origami-forward-fold)
   ("x" . origami-reset)))

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; diminish config
(require 'diminish)
(diminish 'rainbow-mode) ; Hide lighter from mode-line

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; Setup global keys
(cua-mode 1)
(global-set-key (kbd "C-g") 'goto-line)
(global-set-key (kbd "<escape>") 'keyboard-escape-quit)
(global-set-key (kbd "C-c m") 'menu-bar-open)
(global-set-key (kbd "C-c .") 'rotate-frame-clockwise)
(global-set-key (kbd "C-c ,") 'rotate-frame-anticlockwise)
(global-set-key (kbd "C-c u") 'toggle-truncate-lines)
(global-set-key (kbd "<M-f4>") 'delete-frame)
(global-set-key (kbd "C-x C-z") nil)
(global-set-key (kbd "C-o") 'find-file)
(global-set-key (kbd "C-k") 'dired)
(global-set-key (kbd "C-c w")
                (lambda () 
				  (interactive)
				  (whitespace-mode)
				  (whitespace-newline-mode)
				)
)

;; Lookup the current symbol at point. C-c C-d is a common keybinding
;; for this in lisp modes.
(global-set-key (kbd "C-c C-d") #'helpful-at-point)

; more vscode/gui styled find/replace
(defun query-replace-region-or-from-top ()
  "If marked, query-replace for the region, else for the whole buffer (start from the top)"
  (interactive)
  (progn
    (let ((orig-point (point)))
      (if (use-region-p)
          (call-interactively 'query-replace)
        (save-excursion
          (goto-char (point-min))
          (call-interactively 'query-replace)))
      (message "Back to old point.")
      (goto-char orig-point))))
(bind-key* "M-%" 'query-replace-region-or-from-top)
(global-set-key (kbd "C-h") 'query-replace-region-or-from-top)

; more vscode/gui styled find/replace
(global-set-key (kbd "C-s") 'isearch-forward)
(global-set-key (kbd "C-f") 'isearch-forward)

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; Set some global config
(setq inhibit-splash-screen t) ; why do you need to tell me things i know by default
; Turn on ido mode (useful for buffer swaps and find file completion)
(require 'ido-completing-read+)
(ido-ubiquitous-mode 1)
(setq ido-enable-flex-matching t)
(setq ido-everywhere t)
(ido-mode 1)
(setq-default tab-width 4) ; sanity!
(electric-indent-mode 0) ; return should NOT fuck with the indentation of the previous line

;; make typing delete/overwrites selected text
(delete-selection-mode 1)

;; UTF-8 as default encoding
(set-default-coding-systems 'utf-8)
(set-language-environment "UTF-8")
(set-default-coding-systems 'utf-8-unix)

; backups
(defconst kmn/backup-dir
  (expand-file-name "backups" user-emacs-directory))
(unless (file-exists-p kmn/backup-dir)
  (make-directory kmn/backup-dir))
(setq backup-directory-alist `((kmn/backup-dir)))
(setq backup-by-copying t) ; safest form of backup file creation
; Config backups so we have *more*, not less
(setq delete-old-versions t
    kept-new-versions 1
    kept-old-versions 3
    version-control t
)
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;; set font for emoji -- DOES NOT WORK ON MOBILE
(when (eq system-type 'windows-nt)
(set-fontset-font
 t
 '(#x1f300 . #x1fad0)
 (cond
  ((member "Noto Color Emoji" (font-family-list)) "Noto Color Emoji")
  ((member "Noto Emoji" (font-family-list)) "Noto Emoji")
  ((member "Segoe UI Emoji" (font-family-list)) "Segoe UI Emoji")
  ((member "Symbola" (font-family-list)) "Symbola")
  ((member "Apple Color Emoji" (font-family-list)) "Apple Color Emoji"))
 ;; Apple Color Emoji should be before Symbola, but Richard Stallman skum disabled it.
 ;; GNU Emacs Removes Color Emoji Support on the Mac
 ;; http://ergoemacs.org/misc/emacs_macos_emoji.html
 ;;
 )
)

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; line numbers
; find major mode : M-x eval-expression [enter] major-mode
(require 'display-line-numbers)
(defcustom display-line-numbers-exempt-modes '(org-mode org-agenda-mode)
  "Major modes on which to disable the linum mode, exempts them from global requirement"
  :group 'display-line-numbers
  :type 'list
  :version "green")
(defun display-line-numbers--turn-on ()
  "turn on line numbers but excempting certain majore modes defined in `display-line-numbers-exempt-modes'"
  (if (and
       (not (member major-mode display-line-numbers-exempt-modes))
       (not (minibufferp)))
      (display-line-numbers-mode)))
(global-display-line-numbers-mode)

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; whitespace
(progn
  ;; Make whitespace-mode with very basic background coloring for whitespaces.
  ;; http://xahlee.info/emacs/emacs/whitespace-mode.html
  (setq whitespace-style (quote (face spaces tabs newline space-mark tab-mark newline-mark )))

  ;; Make whitespace-mode and whitespace-newline-mode use “¶” for end of line char and “▷” for tab.
  (setq whitespace-display-mappings
        ;; all numbers are unicode codepoint in decimal. e.g. (insert-char 182 1)
        '(
          (space-mark 32 [183] [46]) ; SPACE 32 「 」, 183 MIDDLE DOT 「·」, 46 FULL STOP 「.」
          (newline-mark 10 [8629 10]) ; LINE FEED,
          (tab-mark 9 [8594 9] [92 9]) ; tab
          )))

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; modus-themes setup and enable
(use-package modus-themes
    :ensure
    :init
    (setq modus-themes-region '(no-extend)
          modus-themes-fringes 'subtle
          modus-themes-scale-headings t
    )

    (modus-themes-load-themes)
    :config
    (modus-themes-load-vivendi)
)

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; persp-mode
(with-eval-after-load "persp-mode-autoloads"
  (setq wg-morph-on nil) ;; switch off animation
  (setq persp-autokill-buffer-on-remove 'kill-weak)
  (add-hook 'window-setup-hook #'(lambda () (persp-mode 1))))