" Important {{{
scriptencoding utf-8                                  " Set utf-8 as default script encoding
let g:loaded_python_provider=1                        " Disable python 2 interface
let g:python_host_skip_check=1                        " Skip python 2 host check
if filereadable('bin/python3')
    let g:python3_host_prog = '/bin/python3'
endif
let g:node_host_prog = '~/.local/share/npm/bin/neovim-node-host'
let $GIT_EDITOR = 'nvr -cc split --remote-wait'

if empty(glob('~/.local/share/nvim/site/autoload/plug.vim'))
    silent !curl -fLo ~/.local/share/nvim/site/autoload/plug.vim --create-dirs
        \ https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim
    autocmd VimEnter * PlugInstall --sync | call coc#util#install() | source $MYVIMRC
endif
" }}}
" Options {{{
set inccommand=nosplit
set clipboard^=unnamedplus
set number
set noshowmode
set showtabline=2
set pumheight=12
set noswapfile
set hidden
set lazyredraw
set showmatch
set matchpairs+=<:>
set matchtime=1
set cpoptions-=m
set nojoinspaces
set updatetime=300
set synmaxcol=200
set splitbelow
set splitright
set notimeout
set ignorecase
set scrolloff=5
set sidescroll=5
set shortmess+=aoOIWcs
set foldnestmax=10
set foldmethod=marker
set foldclose=all
set foldlevelstart=10
set selectmode=key
set keymodel=startsel
set signcolumn=yes
set tabstop=2
set shiftwidth=2
set softtabstop=2
set shiftround
set linebreak
set breakindent
set expandtab
set nosmarttab
set title
set redrawtime=500
set ttimeoutlen=10
set nowritebackup
set completeopt-=preview
set nostartofline
set undofile
set undolevels=1000
set undoreload=10000
set formatoptions+=nl
set formatoptions-=crot
set fillchars+=vert:\
set listchars+=precedes:<,extends:>
set conceallevel=1
set diffopt+=algorithm:histogram,indent-heuristic
set pastetoggle=<F12>
match ErrorMsg '^\(<\|=\|>\)\{7\}\([^=].\+\)\?$'

let mapleader="\<SPACE>"
let maplocalleader=','
let formatlistpat='^\s*\(\d\+[\]:.)}\t ]\|[*-][\t ]\)\s*'
let g:netrw_dirhistmax=0
" }}}
" Functions {{{
function! MyHighlights() abort
    highlight Trail ctermbg=red guibg=red
    call matchadd('Trail', '\s\+$', 100)
    highlight ColorColumn ctermbg=magenta
    call matchadd('ColorColumn', '\%81v', 100)
endfunction

function! PopOutOfInsertMode() abort
    if v:insertmode
        call feedkeys("\<C-\>\<C-n>")
    endif
endfunction

function! Relativize(v) abort
    if &number
        let &relativenumber = a:v
    endif
endfunction

function! CmdLine(str)
    call feedkeys(':' . a:str)
endfunction

function! s:new_mail()
    let l:path = system('mktemp --tmpdir XXXXXXXXXX.eml')
    execute 'sp' l:path
    0r ~/.config/nvim/templates/skeleton.eml | w | $
endfunction
command! Mail call s:new_mail()
" }}}
" AutoCommands {{{
if !exists('autocommands_loaded') && has('autocmd')
    let autocommands_loaded = 1

    aug relativize
        au BufWinEnter,FocusGained,InsertLeave,WinEnter * call Relativize(1)
        au BufWinLeave,FocusLost,InsertEnter,WinLeave * call Relativize(0)
    aug END

    aug term_stuff
        au TermOpen * setlocal nonumber norelativenumber laststatus=0
        au TermOpen * setlocal signcolumn=no noruler nocursorline scrolloff=0
    aug END

    aug miscs
        au CursorHold * silent call CocActionAsync('highlight')
        au CursorHold * call CocActionAsync('doHover')
        au User CocJumpPlaceholder call CocActionAsync('showSignatureHelp')
        au ColorScheme * call MyHighlights()
    aug END

    aug inserts
        au InsertEnter * norm zz
        au InsertEnter * setlocal nocursorline
        au InsertLeave * setlocal cursorline nopaste
        au InsertLeave,CompleteDone * if pumvisible() == 0 | pclose | endif
        au FocusLost,TabLeave * call PopOutOfInsertMode()
        au WinLeave * setlocal nocursorline
    aug END

    aug skeletons
        au BufNewFile *.py 0r ~/.config/nvim/templates/py.skeleton
        au BufNewFile *.sh 0r ~/.config/nvim/templates/sh.skeleton
        au BufNewFile ~/doc/blog/*.wiki :silent 0r !diario.py %
    aug END

    aug file_types
        au FileType typescript,json setlocal formatexpr=CocAction('formatSelected')
        au FileType gitcommit,gitrebase,gitconfig set bufhidden=delete
        au BufNewFile,BufRead requirements*.txt set syntax=python
        au BufRead,BufNewFile /tmp/neomutt* set filetype=mail
    aug END

    aug statusline
        au VimEnter * call UpdateInactiveWindows()
        au VimEnter,WinEnter,BufWinEnter * call RefreshStatusLine('active')
        au WinLeave * call RefreshStatusLine('inactive')
    augroup END

    aug on_save
        au BufWritePre * :%s/\s\+$//e
        au BufWritePost *xresources !xrdb %
        au BufWritePost *sxhkdrc !pkill -USR1 sxhkd
        au BufWritePost *.tex !pdflatex %
        au QuitPre * if empty(&buftype) | lclose | endif
    aug END
endif
" }}}
" {{{ Ale
let g:ale_use_global_executables = 1
let g:ale_completion_enabled = 0
let g:ale_linters_explicit = 1
let g:ale_lint_delay = 0
let g:ale_lint_on_text_changed = 'normal'
let g:ale_lint_on_insert_leave = 1
let g:ale_fix_on_save = 1
let g:ale_close_preview_on_insert = 1
let g:ale_sign_highlight_linenrs = 1
let g:ale_sign_error = '✖'
let g:ale_sign_warning = '⚠'
let g:ale_sign_info = '●'
let g:ale_virtualtext_cursor = 1
let g:ale_loclist_msg_format = '[%linter%] %s% (code)% [%severity%]'
let g:ale_set_highlights = 1
let g:ale_set_signs = 1
let g:ale_python_mypy_options = '--ignore-missing-imports'
let g:ale_python_pylint_options = '--disable=C'
let g:ale_python_flake8_options = '--ignore=E221'
let g:move_key_modifier = 'N'

let g:ale_linter_aliases = {
\   'jsx': ['css', 'javascript'],
\   'vue': ['vue', 'javascript'],
\}
let g:ale_linters = {
\   'javascript': ['prettier_standard'],
\   'jsx':        ['prettier_standard'],
\   'typescript': ['tsserver', 'eslint'],
\   'json':       ['prettier_standard'],
\   'html':       ['prettier_standard'],
\   'css':        ['stylelint'],
\   'scss':       ['stylelint'],
\   'bash':       ['shellcheck'],
\   'sh':         ['shellcheck'],
\   'vim':        ['vint'],
\   'tex':        ['chktex'],
\   'python':     ['pyls', 'flake8', 'pylint']
\}
let g:ale_fixers = {
\   '*':          ['remove_trailing_lines', 'trim_whitespace'],
\   'jsx':        ['prettier_standard'],
\   'javascript': ['prettier_standard'],
\   'typescript': ['prettier_standard'],
\   'json':       ['prettier_standard'],
\   'html':       ['prettier_standard'],
\   'scss':       ['stylelint'],
\   'css':        ['stylelint'],
\   'markdown':   ['prettier_standard'],
\   'python':     ['autopep8', 'isort', 'yapf']
\}
let g:ale_pattern_options = {
\ '\.min\.js$': {'ale_linters': [], 'ale_fixers': []},
\ '\.min\.css$': {'ale_linters': [], 'ale_fixers': []},
\}

nmap <silent> <F7> <Plug>(ale_previous_wrap)
nmap <silent> <F8> <Plug>(ale_next_wrap)
" }}}
" CoC {{{
let g:coc_global_extensions = ['coc-lists', 'coc-highlight', 'coc-explorer', 'coc-snippets', 'coc-python', 'coc-tsserver', 'coc-css', 'coc-html', 'coc-json', 'coc-emmet']

" Lists
nnoremap <silent><F1> :<C-u>CocList -S --ignore-case helptags<CR>
nnoremap <silent><F2> :<C-u>CocList -S --ignore-case files<CR>
nnoremap <silent><F3> :<C-u>CocList --normal buffers<CR>
nnoremap <silent><F4> :<C-u>CocList windows<CR>
nnoremap <silent><F9> :<C-u>CocList snippets<CR>
" Explorer
nnoremap <silent><F5> :CocCommand explorer<CR>
" Config
nnoremap <silent><F6> :CocConfig<CR>

inoremap <silent><expr> <TAB>
      \ pumvisible() ? coc#_select_confirm() :
      \ coc#expandableOrJumpable() ? "\<C-r>=coc#rpc#request('doKeymap', ['snippets-expand-jump',''])\<CR>" :
      \ <SID>check_back_space() ? "\<TAB>" :
      \ coc#refresh()

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

" <CR> to confirm completion
inoremap <expr> <cr> pumvisible() ? "\<C-y>" : "\<CR>"

" Use <c-space> to trigger completion.
inoremap <silent><expr> <c-space> coc#refresh()

" GoTo code navigation.
nnoremap <silent> gd <Plug>(coc-definition)
nnoremap <silent> gr <Plug>(coc-references)

" Use K to show documentation in preview window.
nnoremap <silent> D :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

" Symbol renaming.
nnoremap <leader>rn <Plug>(coc-rename)
"}}}
"{{{ Polyglot
let g:polyglot_disabled = ['javascript', 'python']
let g:vim_markdown_toc_autofit = 1
let g:markdown_fenced_languages = ['vim', 'help']
let g:vim_jsx_pretty_colorful_config = 1
let g:jsx_ext_required = 1
let g:tex_flavor='latex'
let g:tex_conceal='abdmg'
let g:Tex_DefaultTargetFormat ='pdf'
let g:vimtex_motion_matchparen = 0
let g:vimtex_complete_enable = 1
let g:vimtex_compiler_progname = 'nvr'
let g:vimtex_view_use_temp_files = 2
let g:vimtex_view_method = 'zathura'
let g:vimtex_quickfix_mode = 0
"}}}
" Plugins {{{
call plug#begin(stdpath('data') . '/plugged')
Plug 'dense-analysis/ale'
Plug 'lervag/vimtex', {'for': 'latex'}
Plug 'othree/yajs.vim', {'for': 'javascript'}
Plug 'othree/es.next.syntax.vim', {'for': 'javascript'}
Plug 'neoclide/coc.nvim', {'branch': 'release'}
Plug 'sheerun/vim-polyglot'
Plug 'tmsvg/pear-tree'
Plug 'tpope/vim-commentary'
Plug 'lambdalisue/gina.vim'
Plug 'srcery-colors/srcery-vim'
call plug#end()
" }}}
" Colors {{{
set termguicolors
let g:srcery_transparent_background = 1
let g:srcery_italic = 1
let g:srcery_underline = 1
let g:srcery_undercurl = 1
let g:srcery_inverse_matches = 1
colorscheme srcery

highlight! VertSplit           ctermbg=NONE ctermfg=NONE cterm=NONE       guibg=NONE    guifg=#080808 gui=NONE
highlight! TabLineFill         ctermbg=NONE ctermfg=NONE cterm=NONE       guibg=NONE    guifg=#ef2f27 gui=NONE
highlight! TablineSel          ctermbg=NONE ctermfg=234                   guibg=NONE    guifg=#008bbd
highlight! CocWarningHighlight               ctermfg=4    cterm=undercurl               guifg=#c4ab39 gui=undercurl
highlight! CocErrorHighlight                 ctermfg=red  cterm=undercurl               guifg=#c4384b gui=undercurl
highlight! CocUnderline                                   cterm=undercurl                             gui=undercurl
highlight! PmenuSel                                                       guibg=#111111 guifg=#6699cc
highlight! Folded              ctermbg=NONE                               guibg=NONE
highlight! RedrawDebugClear                                               guibg=#080808
highlight! NvimInternalError                                                            guifg=#080808
highlight! DiffAdded                                                                    guifg=#333333
highlight! PmenuThumb                                                                   guifg=#333333
highlight! link CocErrorSign WarningMsg
highlight! link CocWarningSign Number
highlight! link CocInfoSign Type

if &diff
    highlight! link DiffText MatchParen
endif
" }}}
" Statusline {{{
highlight User1 ctermfg=251 ctermbg=NONE guibg=NONE guifg=#c6c6c6
highlight User2 ctermfg=234 ctermbg=NONE guibg=NONE guifg=#f74782
highlight User3 ctermfg=234 ctermbg=4    guibg=NONE guifg=#008bb4
highlight User4 ctermfg=234 ctermbg=251  guibg=NONE guifg=#c6c6c6
highlight User5 ctermfg=234 ctermbg=4    guibg=NONE guifg=#e64eff
highlight User6 ctermfg=234 ctermbg=9    guibg=NONE guifg=#fbad34
highlight User7 ctermfg=234 ctermbg=251  guibg=NONE guifg=#407e4a

let g:modes={
    \ 'n'  : ['%3*', 'NORMAL'],
    \ 'no' : ['%3*', 'N·OPERATOR PENDING'],
    \ 'v'  : ['%5*', 'VISUAL'],
    \ 'V'  : ['%5*', 'V·LINE'],
    \ '' : ['%5*', 'V·BLOCK'],
    \ 's'  : ['%7*', 'SELECT'],
    \ 'S'  : ['%7*', 'S·LINE'],
    \ '' : ['%7*', 'S·BLOCK'],
    \ 'i'  : ['%4*', 'INSERT'],
    \ 'R'  : ['%2*', 'REPLACE'],
    \ 'Rv' : ['%2*', 'V·REPLACE'],
    \ 'c'  : ['%6*', 'COMMAND'],
    \ 'cv' : ['%6*', 'VIM EX'],
    \ 'ce' : ['%6*', 'EX'],
    \ 'r'  : ['%1*', 'PROMPT'],
    \ 'rm' : ['%1*', 'MORE'],
    \ 'r?' : ['%1*', 'CONFIRM'],
    \ '!'  : ['%*1', 'SHELL'],
    \ 't'  : ['%*1', 'TERMINAL']
    \}

function! ModeColor() abort
    return get(g:modes, mode(), '%*')[0]
endfunction

function! CurrentMode() abort
    return ' ' . get(g:modes, mode(), '-')[1] . ' '
endfunction

function! StatusLine() abort
    let l:statusline=''
    let l:statusline.=ModeColor()
    let l:statusline.=CurrentMode()
    let l:statusline.=LinePasteMode()
    let l:statusline.='%<'
    let l:statusline.='%1*  '
    let l:statusline.='%= '
    let l:statusline.=coc#status()
    let l:statusline.=' %6*'
    let l:statusline.=LinterStatus()
    let l:statusline.='%3* %p%% %c '
    let l:statusline.=''
    return l:statusline
endfunction

function! StatusLineNC() abort
    let l:statusline=''
    let l:statusline.='%t'
    let l:statusline.='%<'
    let l:statusline.='%= '
    return l:statusline
endfunction

function! HelpStatusLine() abort
    let l:statusline=''
    let l:statusline.= '%#error#[HELP] %t '
    let l:statusline.='%1*  '
    let l:statusline.='%<'
    let l:statusline.='%= '
    let l:statusline.=' %p%% '
    return l:statusline
endfunction

function! UpdateInactiveWindows()
    for winnum in range(1, winnr('$'))
        if winnum != winnr()
            call setwinvar(winnum, '&statusline', '%!StatusLineNC()')
        endif
    endfor
endfunction

function! RefreshStatusLine(mode)
    if (a:mode == "active" && &filetype !=? 'help')
        setlocal statusline=%!StatusLine()
    else
        setlocal statusline=%!StatusLineNC()
    endif
    if &filetype ==? 'help'
        setlocal statusline=%!HelpStatusLine()
    endif
endfunction

function! LinterStatus() abort
    let l:counts = ale#statusline#Count(bufnr(''))
    let l:all_errors = l:counts.error + l:counts.style_error
    let l:all_non_errors = l:counts.total - l:all_errors
    return l:counts.total == 0 ? '' : printf(
    \ ' ⚠ :%d ✖ :%d ',
    \ l:all_non_errors,
    \ l:all_errors
    \)
endfunction

function! LinePasteMode() abort
    let paste_status = &paste
    if paste_status == 1
        return ' paste '
    else
        return ''
    endif
endfunction
" }}}
" Tabline {{{
function! Tabline()
  let s = ''
  for i in range(tabpagenr('$'))
    let tab = i + 1
    let winnr = tabpagewinnr(tab)
    let buflist = tabpagebuflist(tab)
    let bufnr = buflist[winnr - 1]
    let bufname = bufname(bufnr)
    let bufmodified = getbufvar(bufnr, '&mod')

    let s .= '%' . tab . 'T'
    let s .= (tab == tabpagenr() ? '%#TabLineSel#' : '%#TabLine#')
    let s .= ' ' . tab .':'
    let s .= (bufname !=? '' ?  fnamemodify(bufname, ':t') . ' ' : '[Untitled] ')

    if bufmodified
      let s .= ' + '
    endif
  endfor

  let s .= '%#TabLineFill#'
  if (exists('g:tablineclosebutton'))
    let s .= '%=%999XX'
  endif
  return s
endfunction
set tabline=%!Tabline()
" }}}
"Mappings {{{
"Normal {{{
" Ñ master race
nnoremap ñ ;
nnoremap Ñ ,

" Rearrange Splits
nnoremap <silent> <S-Left> <C-W>H
nnoremap <silent> <S-Right> <C-W>L
nnoremap <silent> <S-Up> <C-W>K
nnoremap <silent> <S-Down> <C-W>J

" Resize splits
nnoremap <silent> <Left> :vertical resize -2<CR>
nnoremap <silent> <Right> :vertical resize +2<CR>
nnoremap <silent> <Up> :resize -1<CR>
nnoremap <silent> <Down> :resize +1<CR>

" Alt to switch windows
nnoremap <M-j> <C-W><C-J>
nnoremap <M-k> <C-W><C-K>
nnoremap <M-l> <C-W><C-L>
nnoremap <M-h> <C-W><C-H>

" Edit and source config file
nnoremap <silent> <leader>ev :vsplit $MYVIMRC<CR>
nnoremap <silent> <leader>sv :source $MYVIMRC<CR>

" Gotta Go Fast (save, buffer close, quit, messages, SOF, EOF)
nnoremap <silent> <leader>g :w!<CR>
nnoremap <silent> <leader>b :bdelete<CR>
nnoremap <silent> <leader>q :q!<CR>
nnoremap <silent> <leader>Q :qa!<CR>
nnoremap <silent> <leader>m :messages<CR>
nnoremap <Bar> gg
nnoremap ¿ G

" Splits
nnoremap <silent> <leader>t :terminal<CR>
nnoremap <silent> <leader>v :vnew<CR>
nnoremap <silent> <leader>s :new<CR><CR>

" Quote words under cursor
nnoremap <leader>" viW<esc>a"<esc>gvo<esc>i"<esc>gvo<esc>3l
nnoremap <leader>' viW<esc>a'<esc>gvo<esc>i'<esc>gvo<esc>3l

" Move a line of text using Shift+[jk]
nnoremap <silent> <S-j> mz:m+<cr>`z
nnoremap <silent> <S-k> mz:m-2<cr>`z

" My vim wants to enter all the time, enter all the time
nnoremap <silent> +<CR> i<CR><ESC>

" Unhighlight search terms
nnoremap <silent> <leader><space> :noh<C-R>=has('diff')?'<Bar>diffupdate':''<CR><CR><C-L>

" j = gj :: k = gk  while preserving numbered jumps ie. 12j or 30k
nnoremap <buffer><silent><expr>j v:count ? (v:count > 5 ? "m'" . v:count : '') . 'j' : 'gj'
nnoremap <buffer><silent><expr>k v:count ? (v:count > 5 ? "m'" . v:count : '') . 'k' : 'gk'

" Line movements
noremap  <silent> <Home> g<Home>
noremap  <silent> <End>  g<End>
nnoremap Y 0y$
nnoremap <leader>y y$

" Tab movement
nnoremap tn :tabnew<cr>
nnoremap th :tabfirst<cr>
nnoremap tl :tablast<cr>
nnoremap tx :tabclose<cr>

" Center view on search result
nnoremap n nzz
nnoremap N Nzz
nnoremap * *zz
nnoremap # #zz
nnoremap g* g*zz
nnoremap g# g#zz

" Prevent x from overriding what's in the clipboard.
nnoremap x "_x
nnoremap X "_x

" Prevent selecting and pasting from overwriting what you originally copied.
xnoremap p pgvy

" Global replace
nnoremap <Leader>sw
    \ :let b:sub = input('global replacement: ') <Bar>
    \ if b:sub !=? '' <Bar>
    \   execute "%s/<C-r><C-w>/".b:sub.'/g' <Bar>
    \   unlet b:sub <Bar>
    \ endif <CR>

" What about the Q
nnoremap Q <nop>
map q <nop>
"}}}
"Insert {{{
" Ensure that ctrl+u in insert mode can be reversed
" http://vim.wikia.com/wiki/Recover_from_accidental_Ctrl-U
inoremap <c-u> <c-g>u<c-u>
inoremap <c-w> <c-g>u<c-w>

" Exit insert, dd line, enter insert
inoremap <c-d> <esc>ddi

" Line movements
inoremap <silent> <Home> <C-o>g<Home>
inoremap <silent> <End> <C-o>g<End>

" Alt to switch windows
inoremap <A-h> <Esc><C-w>h
inoremap <A-j> <Esc><C-w>j
inoremap <A-k> <Esc><C-w>k
inoremap <A-l> <Esc><C-w>l
"}}}
"Visual {{{
" Fast beginning and end of document
vnoremap ¿ G
vnoremap <Bar> gg

" Visual mode pressing # searches for the current selection
vnoremap <silent> # :<C-u>call VisualSelection('', '')<CR>?<C-R>=@/<CR><CR>

" Move a line of text using Shift+[jk]
vnoremap <S-j> :m'>+<cr>`<my`>mzgv`yo`z
vnoremap <S-k> :m'<-2<cr>`>my`<mzgv`yo`z

" j = gj :: k = gk  while preserving numbered jumps ie. 12j or 30k
vnoremap <buffer><silent><expr>j v:count ? 'j' : 'gj'
vnoremap <buffer><silent><expr>k v:count ? 'k' : 'gk'

" Line movements
vnoremap $ $h

" Fix indentation without leaving visual mode
vnoremap > >gv
vnoremap < <gv

" Keep cursor at the bottom of the visual selection after you yank it.
vmap y ygv<Esc>

" Delete current visual selection and dump in black hole buffer before pasting
" Used when you want to paste over something without it getting copied to
" Vim's default buffer
vnoremap p "_dP

" global replace
vnoremap <Leader>sw "hy
    \ :let b:sub = input('global replacement: ') <Bar>
    \ if b:sub !=? '' <Bar>
    \	let b:rep = substitute(getreg('h'), '/', '\\/', 'g') <Bar>
    \   execute '%s/'.b:rep."/".b:sub.'/g' <Bar>
    \   unlet b:sub b:rep <Bar>
    \ endif <CR>
"}}}
"Terminal {{{
" Terminal movement
tnoremap <Esc> <C-\><C-n>
tnoremap <M-h> <C-\><C-n><C-w>h
tnoremap <M-j> <C-\><C-n><C-w>j
tnoremap <M-k> <C-\><C-n><C-w>k
tnoremap <M-l> <C-\><C-n><C-w>l
"}}}
"}}}
" vim:foldmethod=marker:foldlevel=0