{ config, pkgs, ... }:
{
  /* The home.stateVersion option does not have a default and must be set */
  home.stateVersion = "18.09";
  home.packages = with pkgs; [
    firefox
    clojure
    deno
    kitty
    # bsdgames
    fortune
    cowsay
    git
    sbcl
    lispPackages.trivia
    # lutris
    # mono5
    nethack
    chezmoi
    # wineWowPackages.stable
    # winetricks
    # foliate
  #  thunderbird
    starship
    exa
  ];

  programs.fish = {
    enable = true;

    shellInit = ''
      #### BEGIN ALIASES ####
      alias v='nvim'

      alias vcf="v ~/.config/nvim/init.vim"

      alias vw='nvim ~/vimwiki/index.wiki; commit-vimwiki'

      function commit-vimwiki --description "go to and from the vimwiki directory, commit with message (to encourage uh, good stuff, and go back"
          cd ~/vimwiki
          git add *
          git commit
          prevd
      end

      alias vt='nvim ~/vimwiki/Tasks.wiki'

      alias vwo="firefox ~/vimwiki_html/index.html"
      alias vwr="nvim -c "VimwikiAll2HTML" -c "q" ~/vimwiki/index.wiki"
      alias nv='neovide'
      # alias hx='helix'
      alias lv="~/.local/bin/lvim"
      alias e='emacs'
      alias ce='code .'
      alias se="serve ."
      alias co='code --reuse-window'
      alias ok='okular'
      alias ko='kitty .'
      alias du="du -h --total"

      #exa
      alias ls="exa"
      alias tree="exa --tree -I target"

      # some more ls aliases
      # alias ls='ls --color=always'
      alias ll='ls -alF'
      alias la='ls -a'
      alias l='ls -CF'

      #some cargo aliases :)
      alias c='cargo'
      alias cn='cargo new'
      alias cnl='cargo new --lib'
      alias ci='cargo init'
      alias cr='cargo run'
      alias cb='cargo build'
      alias ct='cargo test'
      alias cv='cargo clippy'
      alias cf='cargo flamegraph'
      alias cff='cargo flamegraph;firefox flamegraph.svg'
      alias cvp='cargo clippy -- -W clippy::pedantic'
      alias cw="cargo watch -c --poll -x 'clippy -- -W clippy::pedantic'"
      alias cwr='cargo watch -c -x run'
      alias cwt='cargo watch -c -x test'
      alias cbr='cargo build --release'
      alias crr='cargo run --release'
      alias crd="cargo rustdoc"
      alias cft="cargo fmt"
      alias cdc="cargo doc; firefox target/doc/settings.html"

      #general rust aliases
      alias rft='rustfmt'

      #git aliases
      alias g="git"
      alias gcs="batcat -p -l bash /home/mehbark/main/misc/gitCliCheatSheet.js"
      alias gco="git checkout"
      alias gb="git branch"
      alias gc="git commit -m"
      alias gst="git status"
      alias ga="git add"
      alias gp="git push"
      alias gl='git log --oneline --graph --decorate --all'
      alias gi='git init'

      #more complex aliases
      alias ri="git init; cargo init"
      alias rn="new_cargo_quick"
      alias ka="killall -r '.*'"

      function new_cargo_quick --description "make a cargo project with git version control, cd to it and open vscode"
        mkdir "$argv[1]"
        cd "$argv[1]"
        git init
        cargo init
        code .
      end

      function speed-up --description "take arg 1, speed it up by arg 3 and output it to arg 2"
          echo "$argv[1]"
          mencoder -o "$argv[2]" -speed "$argv[3]" -ovc lavc -oac lavc "$argv[1]"
      end

      alias doom='~/.config/emacs/bin/doom'
      alias pipers='pipes-rs'
      alias yt='yt-dlp'
      alias compile_and_serve="cargo run --quiet --release example_in example_out;cd example_out;serve;cd .."
      alias icat="kitty +kitten icat"

      alias do="dolphin . &> /dev/null &"

      #homestuck
      alias hnav "source /home/mbk/hs/bin/hsnav"
      alias hstree "tree ~/hs"
      alias codestuck "code ~/hs"

      function m
          mkdir $argv[1]
          cd $argv[1]
      end

      function playflac
          flac -c -d $argv | aplay
      end

      function filelink
          echo "file://$(realpath $argv)"
      end
      alias xpy '~/Aims/rust/x.py'
      alias sbcl "rlwrap sbcl"
      alias guile "rlwrap guile"
      #alias clj 'clojure -Sdeps "{:deps {com.bhauman/rebel-readline {:mvn/version \"0.1.4\"} $args}}" -m rebel-readline.main'
      alias csi "rlwrap chicken-csi"

      # zig
      alias zb "zig build"
      alias zbr "zig build run"
      alias zbt "zig build test"

      # nix
      alias nrb "sudo nixos-rebuild"
      #### END ALIASES ####
  export PATH="$HOME/.yarn/bin:$HOME/.config/yarn/global/node_modules/.bin:$HOME/.local/bin:$HOME/.emacs.d/bin:$PATH:$HOME/.ghcup/bin:$HOME/.cabal/bin:$HOME/hs/bin:$HOME/.cargo/bin:$HOME/.deno/bin:$HOME/Aims/curlfire"

  # [ -f ~/.fzf.bash ] && source ~/.fzf.bash
  # setopt autocd
  fish_vi_key_bindings
  fish_vi_cursor
  starship init fish | source
  export RUSTC_FORCE_INCREMENTAL=1
  export EDITOR="nvim"
  export TROLLNAMES_PATH="/home/mbk/hs/content/mine/trollname/6-letter-english-words.txt"

  set fish_greeting

  if status is-interactive
      if set -q ASCIINEMA_REC
  	return
      end
      if test $PWD = "/home/mbk/hs"
  	homestartup
      else
  	fortune | cowsay
      end
  end

  export CHEZSCHEMELIBDIRS="/home/mbk/Aims/chez/thunderchez:/home/mbk/Aims/chez/thunderchez:/home/mbk/Aims/chez/chez-srfi:/home/mbk/Aims/chez/pfds"

  # opam configuration
  source /home/mbk/.opam/opam-init/init.fish > /dev/null 2> /dev/null; or true
    '';
  };

  # programs.vscode = {
  #   enable = true;
  #   # i prefer to let vscode manage stuff
  #   mutableExtensionsDir = true;
  # };

  programs.neovim = {
    enable = true;
    coc.enable = true;
    defaultEditor = true;
    plugins = with pkgs.vimPlugins; [
      vim-airline
      vim-airline-themes
      ale

      vim-fugitive

      vim-bufkill

  suda-vim

  # navigation
      nerdtree
      nerdtree-git-plugin
      plenary-nvim
      telescope-nvim

      vim-rooter
      # Plug 'junegunn/fzf', { 'dir': '~/.fzf', 'do': './install --all' }
      # Plug 'junegunn/fzf.vim'
      # Plug 'jlanzarotta/bufexplorer'

      vim-commentary
      #Plug 'mrtazz/DoxygenToolkit.vim'
      vim-surround
      vim-sexp

      vim-operator-user
      #Plug 'rhysd/vim-clang-format'

      #vim-scripts/a.vim
      vim-highlightedyank

      # Plug 'autozimu/LanguageClient-neovim', { 'branch': 'next', 'do': 'bash install.sh' }
      ncm2
      nvim-yarp

      # Completion plugins
      #Plug 'ncm2/ncm2-bufword'
      ncm2-path

      # CoC
      # Plug 'neoclide/coc.nvim', {'branch': 'release'}

      haskell-vim

      # Syntactic language support
      rust-vim
      vim-toml
      elixir-tools-nvim
      #vim-rubocop
      zig-vim
  gruvbox
    ];
    extraConfig = ''
      let mapleader = ";"
      let maplocalleader = ";;"

      let g:ConqueGdb_GdbExe = 'arm-none-eabi-gdb'

      " call plug#begin('~/.config/nvim/plugged')
      " " Using master branch
      " call plug#end()


      "===== Code Completion ====="
      autocmd BufEnter * call ncm2#enable_for_buffer()
      set completeopt=noinsert,menuone,noselect
      " tab to select
      " and don't hijack my enter key
      inoremap <expr><Tab> (pumvisible()?(empty(v:completed_item)?"\<C-n>":"\<C-y>"):"\<Tab>")
      inoremap <expr><CR> (pumvisible()?(empty(v:completed_item)?"\<CR>\<CR>":"\<C-y>"):"\<CR>")

      "===== Compilation Error Navigation ====="
      nmap <silent> <C-k> <Plug>(coc-diagnostic-next-error)
      nmap <silent> <C-j> <Plug>(coc-diagnostic-next)


      "===== Key bindings ====="
      map <C-b> :BufExplorer<CR> " Explore buffers
      map <C-K> :bnext<CR> " Next buffer!
      map <C-J> :bprev<CR> " Prev buffer!
      map <C-c> :Commentary<CR> " Toggle comment on this line

      map <leader>w :w<cr>
      map <leader>q :q<cr>

      " mehbark added this, bracket and braces and stuff completion
      " https://coderwall.com/p/h1dv0g/completion-for-parentheses-braces-and-brackets-in-vim
      " inoremap { {}<left>
      " inoremap {{ {
      " inoremap {} {}
      " inoremap {<cr> {<cr>}<esc>O
      " inoremap [ []<left>
      " inoremap [[ [
      " inoremap [] []
      " inoremap ( ()<left>
      " inoremap (( (
      " inoremap () ()
      " inoremap " ""<left>
      " inoremap "" ""

      "===== Airline ====="
      set ttimeoutlen=50
      set laststatus=2
      let g:airline_powerline_fonts = 1
      let g:airline_theme='base16'
      let g:airline#extensions#tabline#enabled = 1
      " let g:airline_left_sep=""
      " let g:airline_right_sep=""
      " let g:airline#extensions#whitespace#checks = [ 'indent' ]

      " Map f4 to switch header/source for c projects
      map <F4> :A<CR>

      " remove trailing white spaces when saving
      autocmd BufWritePre * :%s/\s\+$//e

      " OCaml settings
      filetype indent on
      filetype plugin on

      au BufRead,BufNewFile *.ml,*.mli compiler ocaml

      " different color schemes depending on the file type
      syntax enable
      "let g:rehash256 = 1
      colorscheme gruvbox


      "===== NERDTree ====="
      "Auto close if only NERDTree is open
      autocmd bufenter * if (winnr("$") == 1 && exists("b:NERDTree") && b:NERDTree.isTabTree()) | q | endif

      "Open nerd tree if no cl argument supplied
      " function! StartUp()
      "     if 0 == argc()
      "         NERDTree .
      "     end
      " endfunction
      " let g:NERDTreeWinPos = 'right'

      " autocmd VimEnter * call StartUp()

      "toggle on Ctrl+n
      map <C-n> :NERDTreeToggle <cr>

      " let g:NERDTreeWinSize=60


      "===== Rust ====="
      autocmd FileType rust nnoremap <buffer> <C-f> :RustFmt<CR>
      let g:rustfmt_autosave = 1
      let g:rustfmt_command = "rustfmt"
      au BufNewFile,BufRead *.rs setlocal colorcolumn=100
      let g:ycm_rust_src_path = '~/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src'


      "===== Nvim Behaviour ====="
      " Changes regular vim behaviours
      " Set so the files auto updates when changed on disk
      set autoread

      " No swap files
      set backupdir-=.
      set backupdir^=~/tmp,/tmp

      " Fold the code
      set foldmethod=syntax
      " activate the folder
      set foldcolumn=1
      " automatically fold larger files, for small ones, it doesn't matter
      autocmd! BufReadPost * :if line('$') < 200 | set foldlevel=99 | else | set foldlevel=1 |endif
      " Relative line numbers in normal mode, absolute in insert (mainly for reading errors easier)
      set number

      autocmd InsertEnter * :set norelativenumber
      autocmd InsertLeave * :set relativenumber


      "===== Persistent Undo ====="
      " Keep undo history across sessions, by storing in file.
      silent !mkdir ~/.config/nvim/backups > /dev/null 2>&1
      set undodir=~/.config/nvim/backups
      set undofile


      "===== Close current buffer ====="
      nnoremap <C-x> :BW<cr>


      "===== Typo fixes ====="
      "Fix common typos when saving and exiting
      command WQ wq
      command Wq wq
      command W  w
      command Q  q


      "===== Misc ====="
      set nocompatible
      " Dont update view in scripts, 10000 times speedup
      set lazyredraw
      " set Colour support so airline works
      set t_Co=256
      " set mouse activated
      set mouse=a
      set clipboard=unnamedplus
      " Include stdlib dirs for 'gf' command. Also include all subdir in
      " workingfolder
      let &path.="src/include,/usr/include/AL,.**"
      " Search for tags file, from current directory until home directory
      set tags=./tags;$HOME


      "===== Terminal ====="
      " Set exiting term mode to esc esc
      tnoremap <esc><esc> <C-\><C-n>


      set incsearch
      set ignorecase
      set smartcase
      set tabstop=4 shiftwidth=4 expandtab
      set wrap linebreak nolist  " list disables line break
      " indicate where the 80 chars wide is
      set cc=100
      set textwidth=0
      set wrapmargin=0
      " set spell spelllang=en_us
      set number
      set relativenumber
      set langmenu=en_US
      let $LANG = 'en_US'
      set cursorline
      " retain undo history in buffers
      set hidden
      " set so the files auto updates when changed on disk
      set autoread
      " Better default for yanking
      :map Y y$
      " Set yank highlight to something reasonable
      let g:highlightedyank_highlight_duration = 150


      """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
      "==== Haskell
      """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
      let g:haskell_enable_quantification = 1   " to enable highlighting of `forall`
      let g:haskell_enable_recursivedo = 1      " to enable highlighting of `mdo` and `rec`
      let g:haskell_enable_arrowsyntax = 1      " to enable highlighting of `proc`
      let g:haskell_enable_pattern_synonyms = 1 " to enable highlighting of `pattern`
      let g:haskell_enable_typeroles = 1        " to enable highlighting of type roles
      let g:haskell_enable_static_pointers = 1  " to enable highlighting of `static`
      let g:haskell_backpack = 1                " to enable highlighting of backpack keywords

      """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
      "==== Coc settings
      """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""

      " Give more space for displaying messages.
      set cmdheight=2

      " Having longer updatetime (default is 4000 ms = 4 s) leads to noticeable
      " delays and poor user experience.
      set updatetime=300

      " Don't pass messages to |ins-completion-menu|.
      set shortmess+=c

      " Always show the signcolumn, otherwise it would shift the text each time
      " diagnostics appear/become resolved.
      set signcolumn=yes

      "function! s:check_back_space() abort
      "  let col = col('.') - 1
      "  return !col || getline('.')[col - 1]  =~# '\s'
      "endfunction
      "
      "" Use tab for trigger completion with characters ahead and navigate.
      "" NOTE: Use command ':verbose imap <tab>' to make sure tab is not mapped by
      "" other plugin before putting this into your config.
      "inoremap <silent><expr> <TAB>
      "      \ pumvisible() ? "\<C-n>" :
      "      \ <SID>check_back_space() ? "\<TAB>" :
      "      \ coc#refresh()
      "inoremap <expr><S-TAB> pumvisible() ? "\<C-p>" : "\<C-h>"

      inoremap <silent><expr> <TAB>
            \ coc#pum#visible() ? coc#pum#next(1) :
            \ CheckBackspace() ? "\<Tab>" :
            \ coc#refresh()
      inoremap <expr><S-TAB> coc#pum#visible() ? coc#pum#prev(1) : "\<C-h>"

      function! CheckBackspace() abort
        let col = col('.') - 1
        return !col || getline('.')[col - 1]  =~# '\s'
      endfunction

      " Make <CR> to accept selected completion item or notify coc.nvim to format
      " <C-g>u breaks current undo, please make your own choice.
      inoremap <silent><expr> <CR> coc#pum#visible() ? coc#pum#confirm()
                                    \: "\<C-g>u\<CR>\<c-r>=coc#on_enter()\<CR>"

      " Use <c-space> to trigger completion.
      inoremap <silent><expr> <c-space> coc#refresh()

      " Use <cr> to confirm completion, `<C-g>u` means break undo chain at current
      " position. Coc only does snippet and additional edit on confirm.
      " if has('patch8.1.1068')
      "   " Use `complete_info` if your (Neo)Vim version supports it.
      "   inoremap <expr> <cr> complete_info()["selected"] != "-1" ? "\<C-y>" : "\<C-g>u\<CR>"
      " else
      "   imap <expr> <cr> pumvisible() ? "\<C-y>" : "\<C-g>u\<CR>"
      " endif

      " Use `[g` and `]g` to navigate diagnostics
      nmap <silent> [g <Plug>(coc-diagnostic-prev)
      nmap <silent> ]g <Plug>(coc-diagnostic-next)

      " GoTo code navigation.
      nmap <silent> gd <Plug>(coc-definition)
      nmap <silent> gy <Plug>(coc-type-definition)
      nmap <silent> gi <Plug>(coc-implementation)
      nmap <silent> gr <Plug>(coc-references)

      " Use K to show documentation in preview window.
      nnoremap <silent> K :call <SID>show_documentation()<CR>

      let g:sexp_insert_after_wrap = 0

      function! s:show_documentation()
        if (index(['vim','help'], &filetype) >= 0)
          execute 'h '.expand('<cword>')
        else
          call CocAction('doHover')
        endif
      endfunction

      " Highlight the symbol and its references when holding the cursor.
      autocmd CursorHold * silent call CocActionAsync('highlight')

      " Symbol renaming.
      nmap <leader>rn <Plug>(coc-rename)

      " Formatting selected code.
      xmap <leader>f  <Plug>(coc-format-selected)
      nmap <leader>f  <Plug>(coc-format-selected)

      augroup mygroup
        autocmd!
        " Setup formatexpr specified filetype(s).
        autocmd FileType typescript,json setl formatexpr=CocAction('formatSelected')
        " Update signature help on jump placeholder.
        autocmd User CocJumpPlaceholder call CocActionAsync('showSignatureHelp')
      augroup end

      " Applying codeAction to the selected region.
      " Example: `<leader>aap` for current paragraph
      xmap <leader>a  <Plug>(coc-codeaction-selected)
      nmap <leader>a  <Plug>(coc-codeaction-selected)

      " Remap keys for applying codeAction to the current line.
      nmap <leader>ac  <Plug>(coc-codeaction)
      " Apply AutoFix to problem on the current line.
      nmap <leader>qf  <Plug>(coc-fix-current)

      " Introduce function text object
      " NOTE: Requires 'textDocument.documentSymbol' support from the language server.
      xmap if <Plug>(coc-funcobj-i)
      xmap af <Plug>(coc-funcobj-a)
      omap if <Plug>(coc-funcobj-i)
      omap af <Plug>(coc-funcobj-a)

      " Use <TAB> for selections ranges.
      " NOTE: Requires 'textDocument/selectionRange' support from the language server.
      " coc-tsserver, coc-python are the examples of servers that support it.
      nmap <silent> <TAB> <Plug>(coc-range-select)
      xmap <silent> <TAB> <Plug>(coc-range-select)

      " Add `:Format` command to format current buffer.
      command! -nargs=0 Format :call CocAction('format')

      " Add `:Fold` command to fold current buffer.
      command! -nargs=? Fold :call     CocAction('fold', <f-args>)

      " Add `:OR` command for organize imports of the current buffer.
      command! -nargs=0 OR   :call     CocAction('runCommand', 'editor.action.organizeImport')

      let g:airline#extensions#coc#enabled = 1
      " Add (Neo)Vim's native statusline support.
      " NOTE: Please see `:h coc-status` for integrations with external plugins that
      " provide custom statusline: lightline.vim, vim-airline.
      set statusline^=%{coc#status()}%{get(b:,'coc_current_function',''')}

      " hopefully this fixes the weird thing with the working directory being a
      " parent directory
      " it hasn't, yet
      set autochdir

      " Mappings using CoCList:
      " Show all diagnostics.
      " nnoremap <silent> <space>a  :<C-u>CocList diagnostics<cr>
      " Manage extensions.
      " nnoremap <silent> <space>e  :<C-u>CocList extensions<cr>
      " Show commands.
      " nnoremap <silent> <space>c  :<C-u>CocList commands<cr>
      " Find symbol of current document.
      " nnoremap <silent> <space>o  :<C-u>CocList outline<cr>
      " Search workspace symbols.
      " nnoremap <silent> <space>s  :<C-u>CocList -I symbols<cr>
      " Do default action for next item.
      " nnoremap <silent> <space>j  :<C-u>CocNext<CR>
      " Do default action for previous item.
      " nnoremap <silent> <space>k  :<C-u>CocPrev<CR>
      " Resume latest coc list.
      " nnoremap <silent> <space>p  :<C-u>CocListResume<CR>

      """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
      " / Coc settings
      """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
    '';
  };
}