with import <nixos-unstable> {};

neovim.override {
  configure = {
    customRC = ''
      set hidden

      " langserver
      let g:LanguageClient_serverCommands = {
        \ 'go': ['gopls'],
        \ 'python': ['pyls'],
        \ 'rust': ['rust-analyzer'],
        \ }
       
      " basic builtin
      set background=dark
      set shiftwidth=4
      set softtabstop=4
      set tabstop=4
      set expandtab
      set ttyfast
      set lazyredraw
      set regexpengine=1
      set synmaxcol=500
      set relativenumber
      set number
      set relativenumber
      set mouse=a
      set shortmess+=c

      " better search
      set incsearch
      set ignorecase
      set smartcase
      set gdefault

      " autocomplete
      autocmd BufEnter * call ncm2#enable_for_buffer()
      inoremap <c-c> <ESC>
      inoremap <expr> <CR> (pumvisible() ? "\<c-y>\<cr>" : "\<CR>")
      set completeopt=noinsert,menuone,noselect
      let g:LanguageClient_completionPreferTextEdit = 1
      let g:LanguageClient_diagnosticsSignsMax = 0

      " securemodelines
      let g:secure_modelines_allowed_items = [
        \ "textwidth",   "tw",
        \ "softtabstop", "sts",
        \ "tabstop",     "ts",
        \ "shiftwidth",  "sw",
        \ "expandtab",   "et",   "noexpandtab", "noet",
        \ "filetype",    "ft",
        \ "foldmethod",  "fdm",
        \ "readonly",    "ro",   "noreadonly", "noro",
        \ "rightleft",   "rl",   "norightleft", "norl",
        \ "colorcolumn"
        \ ]

      " leader
      let mapleader = " "
      nnoremap <silent> <leader> :WhichKey '<Space>'<CR>
      noremap <leader><space> :Commands<cr>
      noremap <leader><tab> :b#<cr>
      let g:which_key_map =  {}

      let g:which_key_map.f = { 'name': '+files' }
      noremap <leader>ff :FZF<cr>
      noremap <leader>fc :saveas
      
      let g:which_key_map.y = { 'name': '+yank' }
      noremap <leader>yp :read !wl-paste<cr>
      noremap <leader>yy :read !wl-paste<cr>
      noremap <leader>ya :w !wl-copy<cr><cr>

      let g:which_key_map.b = { 'name': '+buffers' }
      noremap <leader>bb :Buffers<cr>
      noremap <leader>bh :History<cr>
      noremap <leader>bd :bd<cr>
      noremap <leader>bn :bn<cr>
      noremap <leader>bp :bp<cr>
      
      let g:which_key_map.b = { 'name': '+lang' }
      noremap <leader>mc  :call LanguageClient#textDocument_references()<cr>
      noremap <leader>mf  :call LanguageClient#textDocument_formatting()<cr>
      noremap <leader>mgg :call LanguageClient#textDocument_definition()<cr>
      noremap <leader>mh  :call LanguageClient#textDocument_documentHighlight()<cr>
      noremap <leader>mm  :call LanguageClient#textDocument_hover()<cr>
      noremap <leader>mr  :call LanguageClient#textDocument_rename()<cr>
      noremap <leader>ms  :call LanguageClient#workspace_symbol()<cr>

      " lang specifics
      let g:rustfmt_autosave = 1
      let g:rustfmt_emit_files = 1
      let g:rustfmt_fail_silently = 0
    '';
    packages.myNvim = with pkgs.vimPlugins; {
      start = [
        airline
        easymotion
        editorconfig-vim
        fugitive
        fzf
        LanguageClient-neovim
        ncm2
        surround
        syntastic
        vim-addon-nix
        vim-highlightedyank
        vim-which-key
      ];
    };
  };
}