""
"" Environment
""

" Vim environment
let data    = $XDG_DATA_HOME.'/nvim'
let config  = $XDG_CONFIG_HOME.'/nvim'
let cache   = $XDG_CACHE_HOME .'/nvim'
let plugins = data.'/plugins'

let &directory = cache.',~/,/tmp'
let &backupdir = cache.',~/,/tmp'
let &viminfo   = cache.'/info'

" Netrw data
let g:netrw_home = cache.'/netrw'

" Keep history
let &undodir = cache.'/undo'
set undofile


""
"" Plugins
""

call plug#begin(plugins)

" UI
Plug 'kien/ctrlp.vim'
Plug 'itchyny/lightline.vim'
Plug 'airblade/vim-gitgutter'
Plug 'mbbill/undotree',             { 'on' : 'UndotreeToggle' }
Plug 'milkypostman/vim-togglelist'

" Syntax
Plug 'travitch/hasksyn'
Plug 'LnL7/vim-nix'
Plug 'vim-pandoc/vim-pandoc-syntax'
Plug 'hdima/python-syntax'
Plug 'dag/vim-fish'

" Misc
Plug 'townk/vim-autoclose'
Plug 'tpope/vim-fugitive'
Plug 'ervandew/supertab'
Plug 'neomake/neomake'

call plug#end()


""
"" Options
""

set hidden                              " Hide buffers
set mouse=a                             " Enable mouse support
set ignorecase                          " Case insensitive search...
set smartcase                           " ...for lowercase terms
set nowrap                              " Disable line wrap
set nofoldenable                        " Disable folding

set fsync                               " Sync writes
set noswapfile                          " Disable swap files
set writebackup                         " Backup file before overwriting...
set nobackup                            " ...but delete it on success

set nomodeline                          " Disable for Security
set showmatch                           " Highlight matched parenthesis
set clipboard=unnamedplus               " Yank to clipboard
set wildignore+=*/tmp/*,*.so,*.swp      " Files to ignore

set shiftwidth=2                        " Tabs
set tabstop=2                           "
set expandtab                           "

set number                              " Line numbering
set smartindent                         " Indentation
set noshowmode                          " Disable printing of mode changes
set noruler                             " Already in statusline
set fillchars=eob:\                     " Hide ~ on empty lines

runtime colors.vim                      " Load color scheme
filetype indent plugin on               " Identify file type


""
"" Terminal mode
""

" Hide some elements
autocmd TermOpen  * setlocal nonumber
autocmd TermEnter * set laststatus=0
autocmd TermLeave * set laststatus=2

" Exit without confirmation
autocmd TermClose * call feedkeys("\<CR>")

" Easier escape
tnoremap <C-b> <C-\><C-n>

" Emulate tmux
map <silent><C-w>-  :split +term<CR>
map <silent><C-w>\| :vsplit +term<CR>
map <silent><C-w>t  :tabnew +term<CR>
map <silent><C-w>c  :quit<CR>


""
"" Key bindings
""
let mapleader=","

" Plugins
map <Leader>u :UndotreeToggle<CR>

" Misc
inoremap kj <ESC>
noremap o o<ESC>
noremap O O<ESC>

" keep selection after p
xnoremap <silent> p p:let @+=@0<CR>

" save with sudo
cmap w!! w !sudo tee > /dev/null %


""
"" Plugin options
""

" Lightline
runtime lightline.vim

" Neomake
call neomake#configure#automake('nwr', 750)
let g:neomake_warning_sign = {
  \ 'text': 'W→',
  \ 'texthl': 'WarningMsg',
  \ }
let g:neomake_error_sign = {
  \ 'text': 'E→',
  \ 'texthl': 'ErrorMsg',
  \ }
let g:neomake_highlight_lines = 1
let g:neomake_virtualtext_current_error = 0

" CtrlP
let g:ctrlp_clear_cache_on_exit = 0
let g:ctrlp_follow_symlinks     = 1
let g:ctrlp_custom_ignore = {"dir": "\v[\/]\.git$"}
let g:ctrlp_status_func   = {"main": "CtrlPStatusMain",
                            \"prog": "CtrlPStatusProg"}

" Pandoc Markdown
autocmd! BufNewFile,BufFilePre,BufRead *.md set filetype=markdown.pandoc