" ============================================================================ "
" ===                               PLUGINS                                === "
" ============================================================================ "
call plug#begin('~/.config/nvim/plugged')

" === Editor === "

" Sensible (?) defaults
Plug 'tpope/vim-sensible'

" colorschemes
Plug 'flazz/vim-colorschemes'

" dev icons
Plug 'ryanoasis/vim-devicons'

" file explorer sidebar
Plug 'scrooloose/nerdtree'
Plug 'tiagofumo/vim-nerdtree-syntax-highlight'

" status line
Plug 'vim-airline/vim-airline'
Plug 'vim-airline/vim-airline-themes'

" indent guides
Plug 'nathanaelkane/vim-indent-guides'

" DOcumentation GEneraton
Plug 'kkoomen/vim-doge'

" auto-close plugins
Plug 'rstacruz/vim-closer'
Plug 'tpope/vim-endwise'

" Improved motion in Vim
Plug 'easymotion/vim-easymotion'
Plug 'tpope/vim-surround'

" Snippet support
Plug 'Shougo/neosnippet'
Plug 'Shougo/neosnippet-snippets'

" Print function signatures in echo area
Plug 'Shougo/echodoc.vim'

" Enable git changes to be shown in sign column
Plug 'mhinz/vim-signify'
Plug 'tpope/vim-fugitive'

" Comment out lines
Plug 'tpope/vim-commentary'

" fzf
Plug 'junegunn/fzf', { 'dir': '~/.fzf', 'do': './install --all' }
Plug 'junegunn/fzf.vim'


" === Languages === "
" Intellisense Engine
Plug 'neoclide/coc.nvim', {'do': 'yarn install --frozen-lockfile'}

" lint
Plug 'dense-analysis/ale'

" Trailing whitespace highlighting & automatic fixing
Plug 'ntpeters/vim-better-whitespace'

" Languages
Plug 'sheerun/vim-polyglot'

" elm
Plug 'elmcast/elm-vim'

" json
Plug 'elzr/vim-json'

" html
Plug 'mattn/emmet-vim'

" js
Plug 'othree/yajs.vim'
Plug 'pangloss/vim-javascript'
Plug 'mxw/vim-jsx'

" Python
Plug 'numirias/semshi', {'do': ':UpdateRemotePlugins'}
Plug 'Vimjas/vim-python-pep8-indent'

" Initialize plugin system
call plug#end()


" ============================================================================ "
" ===                           PLUGIN SETUP                               === "
" ============================================================================ "

colorscheme badwolf

" Show hidden files/directories
let g:NERDTreeShowHidden = 1

" Remove bookmarks and help text from NERDTree
let g:NERDTreeMinimalUI = 1

" Custom icons for expandable/expanded directories
let g:NERDTreeDirArrowExpandable = ''
let g:NERDTreeDirArrowCollapsible = ''

" Hide certain files and directories from NERDTree
let g:NERDTreeIgnore = ['\.git$[[dir]]']

let g:elm_setup_keybindings = 0

let g:ale_lint_on_text_changed = 'always'
let g:ale_lint_delay = 1000
let g:ale_sign_error = '>>'
let g:ale_sign_warning = '--'

" Do not display non-specified linter warnings
let g:ale_linters_explicit = 1
let g:ale_linters = {
\   'python': ['flake8', 'pylint'],
\   'typescript': ['prettier', 'tslint'],
\   'javascript': ['prettier', 'eslint'],
\   'scss': ['prettier'],
\   'html': ['prettier'],
\}

let g:ale_fixers = {
\   '*': ['remove_trailing_lines', 'trim_whitespace'],
\   'cpp': ['clang'],
\   'css': ['prettier'],
\   'python': ['yapf'],
\   'typescript': ['prettier', 'tslint'],
\   'javascript': ['prettier', 'eslint'],
\   'scss': ['prettier'],
\   'html': ['prettier'],
\}
let g:ale_fix_on_save = 1


let g:airline_theme='badwolf'


" Wrap in try/catch to avoid errors on initial install before plugin is available
try
" === Coc.nvim === "
" use <tab> for trigger completion and navigate to next complete item
function! s:check_back_space() abort
  let col = col('.') - 1
  return !col || getline('.')[col - 1]  =~ '\s'
endfunction

inoremap <silent><expr> <TAB>
      \ pumvisible() ? "\<C-n>" :
      \ <SID>check_back_space() ? "\<TAB>" :
      \ coc#refresh()

"Close preview window when completion is done.
autocmd! CompleteDone * if pumvisible() == 0 | pclose | endif

" Allow use of :Prettier
command! -nargs=0 Prettier :CocCommand prettier.formatFile

call coc#config('python', {
\   'jediEnabled': v:false,
\   'venvPath': '~/.cache/pypoetry/virtualenvs'
\ })

" Disable deprecated python2 provider
let g:loaded_python_provider = 0

" === NeoSnippet === "
" Map <C-k> as shortcut to activate snippet if available
imap <C-k> <Plug>(neosnippet_expand_or_jump)
smap <C-k> <Plug>(neosnippet_expand_or_jump)
xmap <C-k> <Plug>(neosnippet_expand_target)

" Load custom snippets from snippets folder
let g:neosnippet#snippets_directory='~/.config/nvim/snippets'

let g:neosnippet#enable_conceal_markers = 0

" === Vim airline ==== "
" Enable extensions
let g:airline_extensions = ['branch', 'hunks', 'coc']

" Update section z to just have line number
let g:airline_section_z = airline#section#create(['linenr'])

" Do not draw separators for empty sections (only for the active window) >
let g:airline_skip_empty_sections = 1

" Smartly uniquify buffers names with similar filename, suppressing common parts of paths.
let g:airline#extensions#tabline#formatter = 'unique_tail'

" Custom setup that removes filetype/whitespace from default vim airline bar
let g:airline#extensions#default#layout = [['a', 'b', 'c'], ['x', 'z', 'warning', 'error']]

" Customize vim airline per filetype
" 'nerdtree'  - Hide nerdtree status line
" 'list'      - Only show file type plus current line number out of total
let g:airline_filetype_overrides = {
  \ 'nerdtree': [ get(g:, 'NERDTreeStatusline', ''), '' ],
  \ 'list': [ '%y', '%l/%L'],
  \ }

" Enable powerline fonts
let g:airline_powerline_fonts = 1

" Enable caching of syntax highlighting groups
let g:airline_highlighting_cache = 1

" Define custom airline symbols
if !exists('g:airline_symbols')
  let g:airline_symbols = {}
endif

" Don't show git changes to current file in airline
let g:airline#extensions#hunks#enabled=0

catch
  echo 'Airline not installed. It should work after running :PlugInstall'
endtry

" === echodoc === "
" Enable echodoc on startup
let g:echodoc#enable_at_startup = 1

" === vim-javascript === "
" Enable syntax highlighting for JSDoc
let g:javascript_plugin_jsdoc = 1

" === vim-jsx === "
" Highlight jsx syntax even in non .jsx files
let g:jsx_ext_required = 0

" === javascript-libraries-syntax === "
let g:used_javascript_libs = 'underscore,requirejs,chai,jquery'

" === Signify === "
let g:signify_sign_delete = '-'

" Fzf
let g:fzf_preview_window = 'right:60%'
let g:fzf_buffers_jump = 1
let g:fzf_commits_log_options = '--graph --color=always --format="%C(auto)%h%d %s %C(black)%C(bold)%cr"'
let g:fzf_layout = { 'window': { 'width': 0.9, 'height': 0.9 } }

let $FZF_DEFAULT_OPTS="--ansi --preview-window 'right:60%' --layout reverse --margin=1,4 --preview 'batcat --color=always --style=header,grid --line-range :300 {}'"
let $FZF_DEFAULT_COMMAND = 'rg --files --ignore-case --hidden -g "!{.git,node_modules,vendor}/*"'
command! -bang -nargs=? -complete=dir Files
     \ call fzf#vim#files(<q-args>, fzf#vim#with_preview(), <bang>0)


" Call method on window enter
augroup WindowManagement
  autocmd!
  autocmd WinEnter * call Handle_Win_Enter()
augroup END

" Change highlight group of preview window when open
function! Handle_Win_Enter()
  if &previewwindow
    setlocal winhighlight=Normal:MarkdownError
  endif
endfunction


" Reload icons after init source
if exists('g:loaded_webdevicons')
  call webdevicons#refresh()
endif

let g:indent_guides_enable_on_vim_startup = 1
let g:indent_guides_start_level = 2
let g:indent_guides_guide_size = 1

let g:user_emmet_leader_key='<Tab>'
let g:user_emmet_settings = {
  \  'javascript.jsx' : {
    \      'extends' : 'jsx',
    \  },
  \}