set nocompatible              " be iMproved, required
filetype off                  " required

" Plugins
" Load vim-plug
if empty(glob("~/.config/nvim/autoload/plug.vim"))
    execute '!curl -fLo ~/.config/nvim/autoload/plug.vim --create-dirs https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim'
endif
call plug#begin()

Plug 'tpope/vim-fugitive' " Git integration
Plug 'tpope/vim-sensible' " Defaults everyone can agree on
Plug 'tpope/vim-surround' " better handling of surrounding markers
Plug 'tpope/vim-ragtag' " Enhancement of surround for html
Plug 'tpope/vim-repeat' " repeat last command with .
Plug 'scrooloose/nerdcommenter' " better commenting
Plug 'neoclide/coc.nvim', {'branch': 'release'} " coc - completion
Plug 'easymotion/vim-easymotion' " better motion with leader
Plug 'bling/vim-airline' " statusline
Plug 'w0rp/ale' " asynchronous linting engine
Plug 'godlygeek/tabular' " Align text on symbols
Plug 'junegunn/fzf', { 'dir': '~/.fzf', 'do': './install --all' } " fuzzy file finder
Plug 'junegunn/fzf.vim' " vim integration for fzf
Plug 'airblade/vim-gitgutter' " git status in gutter column
Plug 'honza/vim-snippets' " Collection of Snippets, used by coc-snippet

" All of your Plugins must be added before the following line
call plug#end()            " required
filetype plugin indent on    " required

" SETTINGS
set number                   " line numbers
set autoread                 " reload file automatically

set history=1000

set autoindent               " automatically set indent of new line
set smartindent
set tabstop=4
set shiftwidth=4
set expandtab

set ttyfast                 " faster redrawing
set diffopt+=vertical
set laststatus=2            " show the satus line all the time
set so=7                    " set 7 lines to the cursors - when moving vertical
set wildmenu                " enhanced command line completion
set hidden                  " current buffer can be put into background
set showcmd                 " show incomplete commands
set wildmode=list:longest   " complete files like a shell
set scrolloff=3             " lines of text around cursor
set shell=$SHELL
set cmdheight=1             " command bar height
set title                   " set terminal title

set foldmethod=marker"      " folds are marked with {{{}}}

" Uncomment the following to have Vim jump to the last position when
" reopening a file
if has("autocmd")
    au BufReadPost * if line("'\"") > 0 && line("'\"") <= line("$")
                \| exe "normal! g'\"" | endif
endif

" SETTINGS
let mapleader = ","

" fzf bindings
nmap <C-p> :Files<CR>
nmap <leader><C-p> :Tags<CR>

" Allow saving of files as sudo when I forgot to start vim using sudo.
cmap w!! w !sudo tee > /dev/null %

" Show Infos from ALE in Airline
let g:airline#extensions#ale#enabled = 1

" Completion settings
" if hidden is not set, TextEdit might fail.
set hidden

" Some servers have issues with backup files, see #649
set nobackup
set nowritebackup

" Better display for messages
set cmdheight=2

" You will have bad experience for diagnostic messages when it's default 4000.
set updatetime=300

" don't give |ins-completion-menu| messages.
set shortmess+=c

" always show signcolumns
set signcolumn=yes

" Use tab for trigger completion with characters ahead and navigate.
" Use command ':verbose imap <tab>' to make sure tab is not mapped by other plugin.
inoremap <silent><expr> <TAB>
      \ pumvisible() ? "\<C-n>" :
      \ <SID>check_back_space() ? "\<TAB>" :
      \ coc#refresh()
inoremap <expr><S-TAB> pumvisible() ? "\<C-p>" : "\<C-h>"

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

" 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.
inoremap <expr> <cr> pumvisible() ? "\<C-y>" : "\<C-g>u\<CR>"

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

" Remap keys for gotos
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>

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

" Highlight symbol under cursor on CursorHold
autocmd CursorHold * silent call CocActionAsync('highlight')

" Remap for rename current word
nmap <leader>rn <Plug>(coc-rename)

" Remap for format selected region
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

" Remap for do codeAction of selected region, ex: `<leader>aap` for current paragraph
xmap <leader>a  <Plug>(coc-codeaction-selected)
nmap <leader>a  <Plug>(coc-codeaction-selected)

" Remap for do codeAction of current line
nmap <leader>ac  <Plug>(coc-codeaction)
" Fix autofix problem of current line
nmap <leader>qf  <Plug>(coc-fix-current)

" Use <tab> for select selections ranges, needs server support, like: coc-tsserver, coc-python
nmap <silent> <TAB> <Plug>(coc-range-select)
xmap <silent> <TAB> <Plug>(coc-range-select)
xmap <silent> <S-TAB> <Plug>(coc-range-select-backword)

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

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

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

" Add status line support, for integration with other plugin, checkout `:h coc-status`
set statusline^=%{coc#status()}%{get(b:,'coc_current_function','')}

" 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>:

" For conceal markers.
if has('conceal')
    set conceallevel=2 concealcursor=niv
endif
let g:neosnippet#snippets_directory = '~/.dotfiles/vim/neosnippets'