if empty(glob('~/.config/nvim/autoload/plug.vim'))
  silent !curl -fLo ~/.config/nvim/autoload/plug.vim --create-dirs
    \ https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim
  autocmd VimEnter * PlugInstall --sync | source $MYVIMRC
endif

let g:pyxversion = 'python3'

set number
set relativenumber
set tabstop=4
set shiftwidth=4
set smarttab
set expandtab
set hidden
set showtabline=1
set termguicolors
set ttyfast
set wildmenu
set title
set list
set listchars=tab:→\ ,eol:¬,trail:•,extends:❯,precedes:❮,space:⨪
set showbreak=↪
set timeoutlen=500
set ignorecase
set smartcase
set splitbelow
set splitright

let g:mapleader="\<SPACE>"
let g:maplocallead=','

if has('nvim')
	set inccommand=split
endif

if has("persistent_undo")
    set undofile
    set undodir=$HOME/.undodir
endif

call plug#begin('~/.config/nvim/plugged')
if has('python3') && has('timers')
  Plug 'AlphaMycelium/pathfinder.vim'
else
  echoerr 'pathfinder.vim is not supported on this Vim installation'
endif
Plug 'junegunn/vim-plug'

"LSP Stuff
Plug 'neoclide/coc.nvim', {'branch': 'release'}
Plug 'rust-lang/rust.vim'
Plug 'godlygeek/tabular'
Plug 'cespare/vim-toml'
Plug 'stephpy/vim-yaml'

Plug 'terryma/vim-expand-region'
Plug 'junegunn/rainbow_parentheses.vim'

Plug 'machakann/vim-highlightedyank'
Plug 'vim-airline/vim-airline'
Plug 'vim-airline/vim-airline-themes'
Plug 'morhetz/gruvbox'
Plug 'arzg/vim-corvine'
Plug 'tpope/vim-fugitive'
Plug 'mhinz/vim-signify'
Plug 'tpope/vim-commentary'
Plug 'mbbill/undotree'
Plug 'elmcast/elm-vim'
Plug 'liuchengxu/vim-which-key'
Plug 'airblade/vim-rooter'

"async.vim
Plug 'prabirshrestha/async.vim'

call plug#end()

inoremap <silent><expr> <TAB>
      \ pumvisible() ? "\<C-n>" :
      \ <SID>check_back_space() ? "\<TAB>" :
      \ coc#refresh()
inoremap <expr><S-TAB> pumvisible() ? "\<C-p>" : "\<C-h>"
inoremap <expr> <cr> pumvisible() ? "\<C-y>" : "\<C-g>u\<CR>"

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

inoremap <silent><expr> <c-space> coc#refresh()

autocmd CursorHold * silent call CocActionAsync('highlight')

command! -nargs=0 Format :call CocAction('format')

set background=dark
colorscheme corvine

"Airline settings
let g:airline#extensions#tabline#enabled = 1
let g:airline_powerline_fonts = 1
let g:airline#extensions#tabline#formatter = 'unique_tail_improved'
let g:airline_theme='base16_tomorrow'

nnoremap <leader>u :UndotreeToggle<cr>
nnoremap <leader>h <C-W><C-H> 
nnoremap <leader>j <C-W><C-J>
nnoremap <leader>k <C-W><C-K>
nnoremap <leader>l <C-W><C-L>
nnoremap <leader>n :nohl<cr>
nnoremap <C-k> <C-u>
nnoremap <C-j> <C-d>

" Read and write to system clipboard
vnoremap <Leader>y "+y
vnoremap <Leader>d "+d
nnoremap <Leader>p "+p
nnoremap <Leader>P "+P
vnoremap <Leader>p "+p
vnoremap <Leader>P "+P

" Keep expanding regions with v in visual mode
vmap v <Plug>(expand_region_expand)
vmap <C-v> <Plug>(expand_region_shrink)

"Coc Keymaps and options
nnoremap <silent> <leader><Space>d :call CocAction('jumpDefinition')<cr>
nnoremap <silent> <leader><Space>g :call CocAction('jumpTypeDefinition')<cr>

"which-key
let g:which_key_map = {}
autocmd! User vim-which-key call which_key#register('<Space>', 'g:which_key_map')
let g:which_key_map[' '] =  {
  \ 'name' : '+CoC'                ,
  \ 'd'    : 'go-to-definition'         , 
  \ 'g'    : 'go-to-type-definition'    ,
  \ }
call which_key#register('<Space>', "g:which_key_map")
nnoremap <silent> <leader>      :<c-u>WhichKey '<Space>'<CR>
nnoremap <silent> <localleader> :<c-u>WhichKey  ','<CR>

"rainbow-parens
autocmd VimEnter * RainbowParentheses
let g:rainbow#blacklist = [248]
let g:rainbow#pairs = [['(', ')'], ['[', ']'], ['{', '}']]

function! s:transformed_url(url)
    let l:rv = a:url
    let l:rv = system("echo " . l:rv . ' | sed "s|:|/|" | sed "s|git@|https://|"')
    return l:rv
endfunction

function! GetGitUrl()
    let url = trim(system("git remote get-url origin"))
    let t_url = s:transformed_url(url)
    let branch = system("git branch --show-current")
    let file_name = expand('%')
    let line_num = line(".")
    let @+ =  trim(t_url) . "/blob/" . trim(branch) . "/" . trim(file_name) . "#L" . trim(line_num)
endfunction

nnoremap <silent> <leader>c :call GetGitUrl()<CR>