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

" Plugins
call plug#begin('~/.vim/plugged')
Plug 'preservim/nerdtree'
Plug 'tpope/vim-fugitive'
Plug 'tpope/vim-commentary'
Plug 'junegunn/vim-peekaboo'
Plug 'itchyny/lightline.vim'
Plug 'dikiaap/minimalist'
Plug 'kaicataldo/material.vim'
Plug 'dense-analysis/ale'
Plug 'maximbaz/lightline-ale'
Plug 'preservim/tagbar'
Plug 'vim-php/tagbar-phpctags.vim'
Plug 'junegunn/fzf', { 'do': { -> fzf#install() } }
Plug 'junegunn/fzf.vim'
Plug 'airblade/vim-gitgutter'
Plug 'mxw/vim-jsx'
Plug 'pangloss/vim-javascript'
Plug 'natebosch/vim-lsc'
Plug 'tpope/vim-surround'
call plug#end()
		
filetype plugin indent on
syntax on

set autoindent
set backspace=2
set background=dark
set completeopt=menu,popup,noselect
set cursorcolumn
set cursorline
set expandtab
set history=1000
set hlsearch
set incsearch
set nowrap
set number
set numberwidth=4
set pastetoggle=<F12> "Press <F12> when paste-alot
set preserveindent
set ruler
set shiftround
set shiftwidth=2
set shortmess=atI
set showcmd
set showmatch
set smartindent
set smarttab
set splitright
set switchbuf+=usetab,newtab
set termguicolors
set tabstop=2
set whichwrap+=<,>,[,],h,l 
set undofile
set undodir=~/.vim/undo

" Colorscheme
colorscheme minimalist
highlight Comment cterm=italic

" Lightline
set laststatus=2 
set noshowmode
let g:lightline = {
  \ 'colorscheme': 'minimalist',
  \ 'tabline_subseparator': { 'left': '', 'right': '' },
  \ 'active': {
  \   'left': [
  \     [ 'mode', 'paste' ],
  \     [ 'filestate' ],
  \     [ 'gitbranch', 'tagbar' ],
  \   ],
  \   'right': [ 
  \     [ 'linter_checking', 'linter_errors', 'linter_warnings', 'linter_infos', 'linter_ok' ],
  \     [ 'fileformat', 'fileencoding', 'filetype', 'percent', 'lineinfo', 'offset' ], 
  \   ]
  \ },
  \ 'tabline': {
  \ 	'left': [ [ 'tabs' ] ],
  \   'right': [ ],
  \ },
  \ 'component': {
  \   'tagbar': '%{tagbar#currenttag("%s", "", "f", "nearest-stl")}',
  \ },
  \ 'component_function': {
  \   'filestate': 'LightlineFileState',
  \   'offset': 'LightlineFileOffset',
  \ },
  \ 'component_expand': {
  \   'gitbranch': 'FugitiveHead',
  \   'linter_checking': 'lightline#ale#checking',
  \   'linter_infos': 'lightline#ale#infos',
  \   'linter_warnings': 'lightline#ale#warnings',
  \   'linter_errors': 'lightline#ale#errors',
  \   'linter_ok': 'lightline#ale#ok',
  \ },
  \ 'component_type': {
  \   'linter_warnings': 'warning',
  \   'linter_errors': 'error',
  \   'linter_ok': 'ok',
  \   'linter_infos': 'info',
  \ }
\ }

" Lightline helper (concatenate readonly state, filename and modified state)
function! LightlineFileState()
  if @% == "" | return "[No name]" | endif
  let s = expand('%:t')
  if &modified | let s = s . "+" | endif
  if &readonly | let s = "[RO] " . s | endif
  return s
endfunction

" Lightline helper (get cursor line and character position in file)
function! LightlineFileOffset()
    return line2byte(line('.')) + col('.') - 1
endfunction

" NERDtree
let NERDTreeQuitOnOpen=1
let NERDTreeShowHidden=1

" NERDTree helper (toggle in current buffer)
function! NERDTreeToggleCustom()
  if (exists("t:NERDTreeBufName") && bufwinnr(t:NERDTreeBufName) != -1)
    exe ":NERDTreeClose"
  elseif bufname('%') != ""
    exe ":NERDTreeFind"
  else
    exe ":NERDTreeCWD"
  endif
endfunction

" NERDTREE Toggle NERDTree on <space>-o
map <Space>o :call NERDTreeToggleCustom()<CR>

" ALE Configuration
let g:ale_completion_enabled = 0
let g:ale_sign_column_always = 1
let g:ale_set_signs = 1
let g:ale_set_highlights = 0
let g:ale_disable_lsp = 1

" ALE linters
let g:ale_use_global_executables = 1
let g:ale_linters_explicit = 1
let g:ale_linters = {}
let g:ale_linters.javascript = [ 'eslint' ]
let g:ale_linters.php = [ 'intelephense', 'phpcs' ]
let g:ale_linters.go = [ 'gopls', 'gofmt', 'gobuild' ]

let g:ale_phpcs_standard = "PSR2"

" ALE fixers
let g:ale_fixers = { '*': [ 'remove_trailing_lines', 'trim_whitespace' ] }
let g:ale_fixers.javascript  = [ 'prettier', 'eslint' ]
let g:ale_fixers.go = [ 'gofmt' ]

" ALE message should include responsible linter
let g:ale_echo_msg_format = '[%linter%] %s'

" Ale keymaps
nnoremap <C-a>l :ALELint<CR>
nnoremap <C-a>f :ALEFix<CR>
nnoremap <C-a>i :ALEInfo<CR>

" ALE styling
highlight ALEErrorSign ctermbg=237 ctermfg=167
highlight ALEWarningSign ctermbg=237 ctermfg=215
highlight ALEInfoign ctermbg=237 ctermfg=117
" ALE Configuration end

" Tagbar
let g:tagbar_autoclose = 1
let g:tagbar_autofocus = 1
let g:tagbar_map_showproto = ''
nmap <Space>t :TagbarToggle<CR>

" Toggle transparent background
let g:is_transparent = 0
function! Toggle_transparent()
  echo g:is_transparent
    if g:is_transparent == 0
        hi Normal guibg=NONE ctermbg=NONE
        let g:is_transparent = 1
    else
        set background=dark
        let g:is_transparent = 0
    endif
endfunction
nnoremap <Space>T :call Toggle_transparent()<CR>

" Location list toggle
function! Toggle_location_list()
  if get(b:, 'location_list', 0) == 0
    silent! lopen
    if get(getloclist(0, { 'winid': 0 }), 'winid')
      let b:location_list = 1
    endif
  else
    lclose
    let b:location_list = 0
  endif
endfunction
nnoremap <Space>l :call Toggle_location_list()<CR>

" Quickfix list toggle
function! Toggle_quick_list()
  if get(b:, 'quick_list', 0) == 0
    silent! copen
    if get(getqfist(0, { 'winid': 0 }), 'winid')
      let b:quick_list = 1
    endif
  else
    cclose
    let b:quick_list = 0
  endif
endfunction
nnoremap <Space>c :call Toggle_quick_list()<CR>

" Git blame
autocmd BufEnter * if !exists("b:git_blame") | let b:git_blame = 0 | endif
function! Toggle_git_blame()
  if b:git_blame == 0
    :silent! Git blame
    let b:git_blame = 1
  else
    let winIndex = 1
    let winCnt = winnr('$')
    while winIndex <= winCnt
      if expand('%:e') == "fugitiveblame"
        :close
      else
        :wincmd w
      endif
      let winIndex += 1
    endwhile
    let b:git_blame = 0
  endif
endfunction
nnoremap <Space>b :call Toggle_git_blame()<CR>

" Fuzzy search 
nmap <Space>f :Files<CR>
nmap <Space>s :Rg<CR>

" Git gutter
nmap <Space>n :GitGutterNextHunk<CR>
nmap <Space>p :GitGutterPrevHunk<CR>

" Setting title to enable better tmux titling
if exists('$TMUX')
  autocmd BufReadPost,FileReadPost,BufNewFile,BufEnter * call UpdateTmuxWindow()
  autocmd VimLeave * call system("tmux setw automatic-rename")
endif

function UpdateTmuxWindow()
  let title = @% == "" ? "vim" : "vim | " . expand("%:t")
  call system("tmux rename-window '" . title . "'")
endfunction

" Format XML pretty
function! PrettyXML()
  set filetype=xml
  silent %!xmllint --format --encode UTF-8 --recover - 2>/dev/null
endfunction

" Format json pretty
function! PrettyJSON()
  set filetype=json
  silent %!python3 -m json.tool
endfunction

nmap <Space>x :call PrettyXML()<CR>
nmap <Space>j :call PrettyJSON()<CR>

" Disable bad default keybindings
inoremap <C-w> <Nop>

" LSP configuration
let g:lsc_enable_diagnostics = v:false
let g:lsc_auto_map = v:true
let g:lsc_autocomplete_length=1
set omnifunc=lsc#complete#complete

" LSP keymappings
nnoremap <C-l>f :LSClientFindReferences<CR>
nnoremap <C-l>g :tab LSClientGoToDefinitionSplit<CR>
nnoremap <C-l>G :LSClientGoToDefinition<CR>
nnoremap <C-l>h :LSClientShowHover<CR>

" LSP servers
let g:lsc_server_commands = {}
let g:lsc_server_commands = {
 \  'javascript':     { 'command': 'typescript-language-server --stdio', 'log_level': -1, 'suppress_stderr': v:true },
 \  'javascript.jsx': { 'command': 'typescript-language-server --stdio', 'log_level': -1, 'suppress_stderr': v:true },
 \  'go':             { 'command': 'gopls serve', 'log_level': -1, 'suppress_stderr': v:true },
 \  'php':            { 'command': 'intelephense --stdio', 'message_hooks': {'initialize': { 'initializationOptions': {'storagePath': '/tmp/intelephense'} } } },
 \}

" LSP close preview after selecting completion
autocmd CompleteDone * silent! pclose
" LSP close quickfix list after selection
autocmd BufLeave * cclose