set background=dark
syntax on
filetype plugin indent on

let mapleader=","

" netrw
let g:netrw_banner = 0
let g:netrw_liststyle = 1
let g:netrw_list_hide = '^\.'
let g:netrw_winsize=25
map <leader>n <esc>:Lexplore<cr>

" fix helptags for opt/ plugins
" https://vi.stackexchange.com/questions/17210/generating-help-tags-for-packages-that-are-loaded-by-vim-8s-package-management
command! -nargs=0 -bar Helptags
    \  for p in glob('~/.vim/pack/git-plugins/opt/*', 1, 1)
    \|     exe 'packadd ' . fnamemodify(p, ':t')
    \| endfor
    \| helptags ALL

set shiftwidth=2
set shiftround
set tabstop=2
set expandtab
" set smarttab
set splitbelow
set splitright
set encoding=utf-8
set nocompatible
set t_Co=256
set termguicolors
set hidden
set history=1000
set nowrap
set smartindent
set copyindent
set autoindent
set hlsearch
set showmatch
set wildmenu
set wildmode=list:full,full
set number
set norelativenumber
set ruler
set backspace=indent,eol,start
set ignorecase
set smartcase
set incsearch
set history=1000
set undolevels=1000
set title
set novisualbell
set noerrorbells
set nobackup
set noswapfile
set ttymouse=sgr
set mouse=a
set mousemodel=popup_setpos
set lazyredraw
set timeoutlen=600
set ballooneval
set balloonevalterm
set scrolloff=5
set dict=/usr/share/dict/words
set shortmess+=I
set updatetime=100
set pastetoggle=<f2>
" See :help thesaurus
set thesaurus=$HOME/Documents/thesaurus/thesaurus_pkg/thesaurus.txt
set pumheight=200
set completeopt=menu,menuone,popup,longest,noselect
set completepopup=width:300,height:50,align:item,border:off

" Colour scheme:
colorscheme nord

" Automatically load/save views on files.
" https://vi.stackexchange.com/posts/13874/revisions
augroup AutoSaveFolds
  autocmd!
  autocmd BufWinLeave,BufLeave,BufWritePost,BufHidden,QuitPre ?* nested silent! mkview!
  autocmd BufWinEnter ?* silent! loadview
augroup end

" Key mappings:
nmap <silent> ,/ :nohlsearch<CR>
map <up> <nop>
map <down> <nop>
map <left> <nop>
map <right> <nop>
imap <up> <nop>
imap <down> <nop>
imap <left> <nop>
imap <right> <nop>

nnoremap <silent> ,/ :nohlsearch<cr>
map <c-t> <esc>:tabnew<cr>
" Select just-pasted text:
nnoremap <silent> <leader>0 `[v`]
nnoremap <silent> <leader>1 :set relativenumber!<cr>
map <leader>m :marks<cr>
map <leader>R :registers<cr>
map <leader>v :vsplit<cr>
map <leader>s :split<cr>
map <leader>! <esc>:only<cr>
" ctrl-c to unload a buffer
nnoremap <silent> <c-q> :bp\|bd #<cr>

function! ToggleQuickFix()
  if empty(filter(getwininfo(), 'v:val.quickfix'))
    copen
  else
    cclose
  endif
endfunction
map <silent> <leader>q <esc>:call ToggleQuickFix()<cr>

" vim-ripgrep configuration:
let g:rg_highlight = 1
function RequestGrep()
  call inputsave()
  let s:pattern = trim(input("grep: "))
  call inputrestore()
  if len(s:pattern) > 0
    execute 'Rg' s:pattern
  endif
endfunction
map <Leader>* :call RequestGrep()<CR>
map <Leader>8 :call RequestGrep()<CR>

" deoplete configuration
packadd! deoplete.nvim
let g:deoplete#enable_at_startup = 1
call deoplete#custom#option('num_processes', 6)
call deoplete#custom#option('max_list', 20)
call deoplete#custom#option('auto_complete_delay', 10)
call deoplete#custom#option('auto_refresh_delay', 10)
" https://github.com/Shougo/deoplete.nvim/issues/965#issuecomment-482925193
" Seems to be causing autocomplete issues so removing for now.
" call deoplete#custom#option('omni_patterns', {
" \ 'go': '[^. *\t]\.\w*',
" \})
" <TAB>: completion.
inoremap <expr><TAB>  pumvisible() ? "\<C-n>" : "\<TAB>"
inoremap <expr><s-TAB>  pumvisible() ? "\<C-p>" : "\<s-TAB>"

" vim-markdown configuration:
let g:vim_markdown_conceal = 1

" Command-T configuration:
let switchbuf="usetab"
map <leader>T :CommandTFlush<CR>
map <Leader>r :CommandTMRU<CR>
map <Leader>k :CommandTHelp<CR>
map <Leader>c :CommandTCommand<CR>
let g:CommandTFileScanner="git"
let g:CommandTGitScanSubmodules=1
let g:CommandTGitIncludeUntracked=1
let g:CommandTMatchWindowAtTop=0
let g:CommandTMaxHeight=20
packadd! command-t

" Lightline configuration:
set laststatus=2

" vim-gitgutter configuration
nnoremap hg :GitGutterLineHighlightsToggle<cr>
nmap ]h <Plug>(GitGutterNextHunk)
nmap [h <Plug>(GitGutterPrevHunk)

" Vim-Rust configuration:
let g:rustfmt_autosave = 1

" echodoc configuration:
set cmdheight=2
let g:echodoc#enable_at_startup = 1

" ALE configuration:
function SymbolSearch()
  call inputsave()
  let s:pattern = trim(input("symbol search: "))
  call inputrestore()
  if len(s:pattern) > 0
    execute 'ALESymbolSearch' s:pattern
  endif
endfunction
map <Leader>ss :call SymbolSearch()<CR>
nmap [L <Plug>(ale_first)
nmap ]L <Plug(ale_last)
nmap [l <Plug>(ale_previous_wrap_error)
nmap ]l <Plug>(ale_next_wrap_error)

nmap <leader>ad :ALEDetail<cr>
map <Leader>g :ALEGoToDefinition<CR>
map <Leader>gt :ALEGoToTypeDefinition<CR>
map <Leader>f :ALEFindReferences<CR>
map <Leader>fv :ALEFindReferences -vsplit<CR>
map <Leader>fh :ALEFindReferences -split<CR>
map <Leader>ft :ALEFindReferences -tab<CR>
command GoToDefinition ALEGoToDefinition
command GoToTypeDefinition ALEGoToTypeDefinition
command FindReferences ALEFindReferences
command Rename ALERename

let g:ale_sign_column_always = 1
let g:ale_fix_on_save = 1
let g:ale_lint_on_text_changed = 1
let g:ale_lint_on_enter = 1
let g:ale_lint_on_insert_leave = 1
let g:ale_lint_on_save = 1
let g:ale_echo_cursor = 1
let g:ale_lint_delay = 100
let g:ale_set_balloons = 1
" NOTE: Needs https://github.com/dense-analysis/ale/issues/3350
let g:ale_rust_analyzer_config = {
      \ 'diagnostics': { 'disabled': ['unresolved-import'] },
      \ 'cargo': { 'loadOutDirsFromCheck': v:true },
      \ 'procMacro': { 'enable': v:true },
      \ 'checkOnSave': { 'command': 'clippy', 'enable': v:true },
      \ }
let g:ale_go_goimports_options = '-local github.com/sensiblecodeio/cantabular'
" let g:ale_command_wrapper = 'nice -n5'
let g:ale_completion_enabled = 0
let g:ale_close_preview_on_insert = 1
let g:ale_hover_to_preview = 1
let g:ale_sign_column_always = 1
let g:ale_history_log_output = 1
" Currently, gopls only uses default gopls analyzers.
" https://github.com/dense-analysis/ale/issues/3563
let g:ale_linters = {
      \ 'javascript': ['eslint'],
      \ 'go': ['gopls'],
      \ 'rust': ['analyzer'],
      \ 'css': ['stylelint'],
      \ 'python': ['pyls'],
      \ }
let g:ale_fixers = {
      \ '*': ['remove_trailing_lines', 'trim_whitespace'],
      \ 'javascript': ['prettier'],
      \ 'rust': [],
      \ 'go': [],
      \ 'css': ['stylelint'],
      \ 'python': ['autopep8'],
      \ }

" load internal plugins:
runtime macros/matchit.vim

" load ALE only after configured:
packadd! ale

" load other plugins:
packadd! echodoc.vim
packadd! lightline.vim
packadd! tmux-complete.vim
packadd! vim-commentary
packadd! vim-gitgutter
packadd! vim-go
packadd! vim-surround
packadd! vim-yaml-folds