dotfiles/nvim/init.vim

set nocompatible            " disable compatibility to old-time vi
set showmatch               " show matching 
set ignorecase              " case insensitive 
set hlsearch                " highlight search 
set incsearch               " incremental search
set tabstop=4               " number of columns occupied by a tab 
set softtabstop=4           " see multiple spaces as tabstops so <BS> does the right thing
set expandtab               " converts tabs to white space
set shiftwidth=4            " width for autoindents
set autoindent              " indent a new line the same amount as the line just typed
set number                  " add line numbers

set relativenumber          " turn relative line numbers on
set rnu

set laststatus=2

set wildmode=longest,list   " get bash-like tab completions
set cc=80                   " set an 80 column border for good coding style

syntax on                   " syntax highlighting
set mouse=a                 " enable mouse click
set clipboard=unnamedplus   " using system clipboard
filetype plugin on
set cursorline              " highlight current cursorline
set ttyfast                 " Speed up scrolling in Vim

set spell                   " enable spell check (may need to download language package)
set spelllang=en,ru
set spellsuggest=best,9

" regenerate spell dicts on startup
for d in glob('~/.vim/spell/*.add', 1, 1)
    if filereadable(d) && (!filereadable(d . '.spl') || getftime(d) > getftime(d . '.spl'))
        exec 'mkspell! ' . fnameescape(d)
    endif
endfor
nnoremap <silent> <F11> :set spell!<cr>
inoremap <silent> <F11> <C-O>:set spell!<cr>

set noswapfile              " disable creating swap file
set backupdir=~/.cache/vim  " Directory to store backup files.

filetype plugin indent on   "allow auto-indenting depending on file type

nnoremap <C-N> :bnext<CR>
nnoremap <C-P> :bprev<CR>

let g:python3_host_prog = '/usr/bin/python3.10'
" let g:python3_host_prog = '/home/apr/work/tchk/venv/bin/python3.10'
" let g:python3_host_prog = '/home/apr/.virtualenvs/pyg/bin/python3'

" netrw magic
" enable mouse usage. makes it easier to browse multiple tabs
set mouse=a
" hide netrw top message
let g:netrw_banner=0
" tree listing by default
let g:netrw_liststyle=3
" hide vim swap files
let g:netrw_list_hide='.*\.swp$'
" open files in left window by default
let g:netrw_chgwin=1
" remap alt-enter to fire up the sidebar
nnoremap <silent> <A-CR> :rightbelow 20vs<CR>:e .<CR>
" " the same remap as above - may be necessary in some distros
" nnoremap <silent> <C-M> :rightbelow 20vs<CR>:e .<CR>
" remap control-enter to open files in new tab
nmap <silent> <C-CR> t :rightbelow 20vs<CR>:e .<CR>:wincmd h<CR>
" the same remap as above - may be necessary in some distros
nmap <silent> <NL> t :rightbelow 20vs<CR>:e .<CR>:wincmd h<CR>

call plug#begin("~/.vim/plugged")
 " Plugin Section

 " light theme
 Plug 'sonph/onehalf', { 'rtp': 'vim' }
 
 " autoquotes
 Plug 'jiangmiao/auto-pairs'

 " to show separate buffers as tabs
 Plug 'ap/vim-buftabline'

 " have no idea
 Plug 'tpope/vim-vinegar'

 " some icons
 Plug 'ryanoasis/vim-devicons'
 Plug 'SirVer/ultisnips'

 Plug 'honza/vim-snippets'
 Plug 'mhinz/vim-startify'
 " Plug 'NLKNguyen/papercolor-theme'
 Plug 'habamax/vim-asciidoctor'
 
 " markdown shit
 Plug 'godlygeek/tabular'
 Plug 'plasticboy/vim-markdown'

 " deoplete for whatever it is needed
 Plug 'Shougo/deoplete.nvim', { 'do': ':UpdateRemotePlugins' }

 Plug 'zchee/deoplete-jedi'
 Plug 'roxma/nvim-yarp'
 Plug 'roxma/vim-hug-neovim-rpc'

 " Plugin for renaming python and not only
 Plug 'davidhalter/jedi-vim'

 Plug 'neomake/neomake'
 " tree sitter at least for better highlighting
 " as recommended updating the parsers on update
 Plug 'nvim-treesitter/nvim-treesitter', {'do': ':TSUpdate'}  

 " bindings for shellcheck 
 Plug 'itspriddle/vim-shellcheck'

 " Fuzzy finder
 Plug 'junegunn/fzf', { 'do': { -> fzf#install() } }

 " vim-plug
 Plug 'LnL7/vim-nix'

 " Collection of common configurations for the Nvim LSP client
 Plug 'neovim/nvim-lspconfig'
 
 " Completion framework
 " Plug 'hrsh7th/nvim-cmp'
 
 " LSP completion source for nvim-cmp
 " Plug 'hrsh7th/cmp-nvim-lsp'
 
 " Snippet completion source for nvim-cmp
 " Plug 'hrsh7th/cmp-vsnip'
 
 " Other usefull completion sources
 " Plug 'hrsh7th/cmp-path'
 " Plug 'hrsh7th/cmp-buffer'
 " See hrsh7th's other plugins for more completion sources!
 
 " To enable more of the features of rust-analyzer, such as inlay hints and more!
 Plug 'simrat39/rust-tools.nvim'
 " gitblame
 Plug 'f-person/git-blame.nvim'
 
call plug#end()

set t_Co=256
set cursorline
set termguicolors
colorscheme summerfruit256
let g:airline_theme='onehalfdark'

" lightline
" let g:lightline = { 'colorscheme': 'onehalfdark' }

" vim-markdown disable folding
let g:vim_markdown_folding_disabled=1

let g:deoplete#enable_at_startup = 1

" disable autocompletion, because we use deoplete for completion
let g:jedi#completions_enabled = 0

" open the go-to function in split, not another buffer
let g:jedi#use_splits_not_buffers = "right"

" when to wtivate neomake
call neomake#configure#automake('nrwi', 50)

" enable linter
let g:neomake_python_enabled_makers = ['pylint']

" Set ultisnips triggers
let g:UltiSnipsExpandTrigger="<tab>"                                            
let g:UltiSnipsJumpForwardTrigger="<tab>"                                       
let g:UltiSnipsJumpBackwardTrigger="<s-tab>"   

" buftabline configuration
let g:buftabline_numbers=1
let g:buftabline_indicators=1

let &fillchars ..= ',eob: '

" nnoremap <silent> <F11> :set spell!<cr>
nnoremap <silent> <F5> :FZF<CR>

" Rust setup
" Set completeopt to have a better completion experience
" :help completeopt
" menuone: popup even when there's only one match
" noinsert: Do not insert text until a selection is made
" noselect: Do not select, force user to select one from the menu
" set completeopt=menuone,noinsert,noselect
" 
" " Avoid showing extra messages when using completion
" set shortmess+=c
" 
" " Configure LSP through rust-tools.nvim plugin.
" " rust-tools will configure and enable certain LSP features for us.
" " See https://github.com/simrat39/rust-tools.nvim#configuration
" lua <<EOF
" local nvim_lsp = require'lspconfig'
" 
" local opts = {
"     tools = { -- rust-tools options
"         autoSetHints = true,
"         hover_with_actions = true,
"         inlay_hints = {
"             show_parameter_hints = false,
"             parameter_hints_prefix = "",
"             other_hints_prefix = "",
"         },
"     },
" 
"     -- all the opts to send to nvim-lspconfig
"     -- these override the defaults set by rust-tools.nvim
"     -- see https://github.com/neovim/nvim-lspconfig/blob/master/doc/server_configurations.md#rust_analyzer
"     server = {
"         -- on_attach is a callback called when the language server attachs to the buffer
"         -- on_attach = on_attach,
"         settings = {
"             -- to enable rust-analyzer settings visit:
"             -- https://github.com/rust-analyzer/rust-analyzer/blob/master/docs/user/generated_config.adoc
"             ["rust-analyzer"] = {
"                 -- enable clippy on save
"                 checkOnSave = {
"                     command = "clippy"
"                 },
"             }
"         }
"     },
" }
" require('rust-tools').setup(opts)
" EOF
" 
" " Setup Completion
" " See https://github.com/hrsh7th/nvim-cmp#basic-configuration
" 
" lua <<EOF
"     local cmp = require'cmp'
"     cmp.setup({
"       -- Enable LSP snippets
"       snippet = {
"         expand = function(args)
"             vim.fn["UltiSnips#Anon"](args.body)
"         end,
"       },
"       mapping = {
" --        ['<C-p>'] = cmp.mapping.select_prev_item(),
"  --       ['<C-n>'] = cmp.mapping.select_next_item(),
"         -- Add tab support
"         -- ['<S-Tab>'] = cmp.mapping.select_prev_item(),
"         -- ['<Tab>'] = cmp.mapping.select_next_item(),
"         ['<C-d>'] = cmp.mapping.scroll_docs(-4),
"         ['<C-f>'] = cmp.mapping.scroll_docs(4),
"         ['<Tab>'] = cmp.mapping.complete(),
"         ['<C-e>'] = cmp.mapping.close(),
"         ['<CR>'] = cmp.mapping.confirm({
"           behavior = cmp.ConfirmBehavior.Insert,
"           select = true,
"         })
"       },
" 
"       -- Installed sources
"       sources = {
"         { name = 'nvim_lsp' },
"         { name = 'vsnip' },
"         { name = 'path' },
"         { name = 'buffer' },
"       },
"     })
" EOF
" 
" " Set updatetime for CursorHold
" " 300ms of no cursor movement to trigger CursorHold
" set updatetime=300
" " Show diagnostic popup on cursor hold
" autocmd CursorHold * lua vim.diagnostic.open_float(nil, { focusable = false })
" 
" " Goto previous/next diagnostic warning/error
" nnoremap <silent> g[ <cmd>lua vim.diagnostic.goto_prev()<CR>
" nnoremap <silent> g] <cmd>lua vim.diagnostic.goto_next()<CR>
" 
" " have a fixed column for the diagnostics to appear in
" " this removes the jitter when warnings/errors flow in
" set signcolumn=yes