"  mikroskeem's neovim config

" Bail if config is already loaded
if exists("g:loaded_neostrophic")
  finish
endif
let g:loaded_neostrophic = 1

" neovim-qt Guifont command
command -nargs=? Guifont call rpcnotify(0, 'Gui', 'SetFont', "<args>") | let g:Guifont="<args>"

" Set options
set wildmode=longest,list,full
set completeopt-=preview
set shortmess+=cI
set noshowmode
set shortmess+=I
set nostartofline
set wrap
set textwidth=0
set wrapmargin=0
set background=dark
set number
set numberwidth=3
if $DISPLAY != ''
  set clipboard+=unnamedplus
endif
set showmatch
set smartcase
set ignorecase
set undofile
set undoreload=100
set viminfo+=n$HOME/.config/nvim/tmp/viminfo
set showtabline=0
set backup
set backupdir=$HOME/.config/nvim/tmp/backup/
set undodir=$HOME/.config/nvim/tmp/undo/
set directory=$HOME/.config/nvim/tmp/swap/
set title
set cursorline
let mapleader = ','

function! s:center_header(lines) abort
  let longest_line   = max(map(copy(a:lines), 'len(v:val)'))
  let centered_lines = map(copy(a:lines),
      \ 'repeat(" ", (&columns / 2) - (longest_line / 2)) . v:val')
  return centered_lines
endfunction 

function! s:mkdir_p(p)
  if !isdirectory(expand(a:p))
    call mkdir(expand(a:p), "p")
  endif
endfunction

function! s:set_indent()
  if &ft =~ 'yaml\|coffee\|vim\|jade'
    set softtabstop=2 shiftwidth=2
  endif
  if &ft =~ 'make'
    set shiftwidth=2 tabstop=2 noexpandtab
  endif
endfunction

" Make missing dirs
silent! call s:mkdir_p(&undodir)
silent! call s:mkdir_p(&backupdir)
silent! call s:mkdir_p(&directory)


" Default indent settings
set softtabstop=4
set shiftwidth=4
set expandtab
set shiftround
set autoindent
set copyindent
" Function call below overrides previous options
" if opened filetype was defined in function
autocmd! FileType * call s:set_indent()

" Fake $MYVIMRC
function! s:fake_vimrc()
  let $MYVIMRC=$HOME . "/.config/nvim/init.vim"
endfunction

" UpdateRemotePlugins wrapper (used in vim-plug)
function! URP(info)
  if a:info.status == 'installed'
    silent! call s:fake_vimrc()
    silent! UpdateRemotePlugins
  endif
endfunction

" Eyecandy: loads color scheme after it's installation :3
function! Load_color_scheme(info)
  if a:info.status == 'installed'
    let s = printf("colorscheme %s", a:info.name)
    silent! execute s
  endif
endfunction

" Toggle preview
function! s:preview_toggle()
  if &completeopt =~# "preview"
    setlocal completeopt-=preview
    pc
  else
    setlocal completeopt+=preview
  endif
endfunction


" Plugin configurations
let g:lightline = {
    \ 'active': {
        \ 'left': [['mode', 'paste',], ['readonly', 'modified', 'fugitive'], ['bufferinfo'], ['bufferbefore', 'buffercurrent', 'bufferafter']],
        \ },
    \ 'component_expand': {
        \ 'buffercurrent': 'lightline#buffer#buffercurrent2',
        \ },
    \ 'component_function': {
        \ 'bufferbefore': 'lightline#buffer#bufferbefore',
        \ 'bufferafter': 'lightline#buffer#bufferafter',
        \ 'bufferinfo': 'lightline#buffer#bufferinfo',
        \ 'fugitive': 'LlFugitive',
        \ },
      \ 'separator': { 'left': '>', 'right': '<' },
      \ 'subseparator': { 'left': '>', 'right': '<' }
    \ }
function! LlFugitive()
  return exists('*fugitive#head') ? fugitive#head() : ''
endfunction

let g:lightline_buffer_readonly_icon = ''
let g:lightline_buffer_modified_icon = '+'
let g:lightline_buffer_active_buffer_left_icon = '['
let g:lightline_buffer_active_buffer_right_icon = ']'
let g:lightline_buffer_separator_icon = ''

let g:lightline_buffer_show_bufnr = 0
let g:lightline_buffer_rotate = 0
let g:lightline_buffer_fname_mod = ':t'
let g:lightline_buffer_excludes = ['vimfiler']

let g:lightline_buffer_maxflen = 30
let g:lightline_buffer_maxfextlen = 3
let g:lightline_buffer_minflen = 16
let g:lightline_buffer_minfextlen = 3
let g:lightline_buffer_reservelen = 20

let g:molokai_original = 0
let g:rehash256 = 1

let g:syntastic_enable_balloons = 1
let g:syntastic_always_populate_loc_list = 1
let g:syntastic_auto_loc_list = 1
let g:syntastic_check_on_open = 1
let g:syntastic_check_on_wq = 0
let g:syntastic_mode_map = {
  \ "mode": "active",
  \ "active_filetypes": ["javascript", "python", "coffee", "jade", "yaml"],
  \ "passive_filetypes": ["java", "c"]}
let g:syntastic_python_checkers = ['flake8', 'pylint']
let g:syntastic_javascript_checkers = ['eslint']
let g:syntastic_yaml_checkers = ['yamllint', 'yamlxs']

let g:startify_session_dir = '~/.config/nvim/startify-session'
let g:startify_custom_header = s:center_header(map(split(system('fortune | cowsay'), '\n'), '"   ". v:val') + ['',''])

let g:deoplete#enable_at_startup = 1
let g:deoplete#enable_camel_case = 1
let g:python3_host_prog  = '/usr/bin/python3'
let g:python3_host_skip_check = 1

let g:NERDTreeHijackNetrw = 1


let g:gitgutter_map_keys = 0
let g:gitgutter_highlight_lines = 0

let g:echodoc_enable_at_startup = 1

let g:rainbow_active = 1
let g:rainbow_conf = {
  \ 'ctermfgs': ['red', 'lightgreen', 'lightred', 'lightblue', 'yellow']}

" Plugins
call plug#begin('~/.config/nvim/neostrophic_plugins')
Plug 'tpope/vim-sensible'
Plug 'Konfekt/FastFold'
Plug 'Matt-Deacalion/vim-systemd-syntax', {'for': 'systemd'}
Plug 'PotatoesMaster/i3-vim-syntax',      {'for': 'i3'}
Plug 'Shougo/context_filetype.vim'
Plug 'Shougo/deoplete.nvim',              {'do': function('URP')}
Plug 'Shougo/echodoc.vim'
Plug 'Shougo/unite.vim',                  {'on': 'Unite' }
Plug 'Shougo/vimproc.vim',                {'do': 'make'}
Plug 'airblade/vim-gitgutter'
Plug 'digitaltoad/vim-pug',              {'for': ['jade', 'pug']}
Plug 'elzr/vim-json',                     {'for': 'json'}
Plug 'itchyny/lightline.vim'
Plug 'jelera/vim-javascript-syntax',      {'for': 'javascript'}
Plug 'jmcantrell/vim-virtualenv'
Plug 'junegunn/goyo.vim',                 {'on': 'Goyo'}
Plug 'junegunn/limelight.vim',            {'on': 'Limelight'}
Plug 'junegunn/vim-easy-align',           {'on': 'EasyAlign'}
Plug 'justinmk/molokai',                  {'do': function('Load_color_scheme')}
Plug 'kchmck/vim-coffee-script',          {'for': 'coffee'}
Plug 'luochen1990/rainbow'
Plug 'majutsushi/tagbar'
Plug 'mattn/gist-vim',                    {'on': 'Gist'}
Plug 'mattn/webapi-vim',                  {'on': 'Gist'}
Plug 'matze/vim-move'
Plug 'mhinz/vim-startify'
Plug 'mikroskeem/vim-sk-syntax',          {'for': 'skript'}
Plug 'nelstrom/vim-markdown-folding',     {'for': 'markdown'}
Plug 'scrooloose/nerdtree',               {'on': 'NERDTreeToggle'}
Plug 'scrooloose/syntastic'
Plug 'taohex/lightline-buffer'
Plug 'tpope/vim-fugitive'
Plug 'tpope/vim-markdown',                {'for': 'markdown'}
Plug 'vim-scripts/nginx.vim',             {'for': 'nginx'}
Plug 'wavded/vim-stylus',                 {'for': 'stylus'}
Plug 'zchee/deoplete-jedi'
call plug#end()

" Terminal
autocmd TermOpen * setlocal nocursorline

" Goyo

function! s:on_goyo_enter()
  if exists('$TMUX')
    silent !tmux set status off
  endif
  setlocal nocursorline
  Limelight
endfunction

function! s:on_goyo_leave()
  if exists('$TMUX')
    silent !tmux set status on
  endif
  setlocal cursorline
  Limelight!
endfunction

autocmd! User GoyoEnter nested call <SID>on_goyo_enter()
autocmd! User GoyoLeave nested call <SID>on_goyo_leave()


" Keybinds

" Tab controls
nnoremap <silent> <C-Left> :tabprevious<CR>
nnoremap <silent> <C-Right> :tabnext<CR>
nnoremap <silent> <C-Up> :tabnew<CR>
nnoremap <silent> <C-Down> :tabclose<CR>
" ----------------
nnoremap <silent> <F2> :tabnew<CR>
nnoremap <silent> <A-F2> :tabclose<CR>
nnoremap <silent> <F3> :tabprevious<CR>
nnoremap <silent> <F4> :tabnext<CR>


"  Commonly used commands

" Undo
nnoremap <silent> <C-z> :u<CR>
" Quit
nnoremap <silent> <C-x> :q<CR>
" Just write
nnoremap <silent> <C-o> :w<CR>
" Quit without writing
nnoremap <silent> <C-A-x> :q!<CR>
" Remove search highlighting
nnoremap <silent> <C-A-a> :noh<CR>
" Preview toggle
nnoremap <silent> <Leader>p :call <SID>preview_toggle()<CR>
" Increase/decrease numbers with Alt key and A/X
nnoremap <A-a> <C-a>
nnoremap <A-x> <C-x>

"  Commands from plugins

" File listing
nnoremap <silent> <C-n> :NERDTreeToggle<CR>
" Gist
nnoremap <silent> <C-A-g> :Gist -p<CR>
" Toggle Syntastic
nnoremap <silent> <C-A-f> :SyntasticToggleMode<CR>
" Goyo mode
nnoremap <silent> <F5> :Goyo<CR>
" neovim term
nnoremap <silent> <F6> :term<CR>
" neovim terminal mode -> normal mode with Alt-q
tnoremap <A-q> <C-\><C-n>
" Unite
nnoremap <silent> <F7> :Unite<CR>
" Show/hide tags
nnoremap <silent> <F8> :TagbarToggle<CR>
" vim-easy-align
" xnoremap / nnoremap won't work here somehow
xmap <leader>ga :EasyAlign<CR>
nmap <leader>ga :EasyAlign<CR>
" GitGutter
nmap <Leader>hr <Plug>GitGutterUndoHunk
nmap <Leader>hp <Plug>GitGutterPrevHunk

" Re-apply fake $MYVIMRC
silent! call s:fake_vimrc()

" Load color scheme (reuse function)
call Load_color_scheme({'status': 'installed', 'name': 'molokai'})