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>

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 pastetoggle=<f2>
" See :help thesaurus
set thesaurus=$HOME/Documents/thesaurus/thesaurus_pkg/thesaurus.txt
set completeopt=menu,menuone,popup,longest
set completepopup=width:100,height:50,align:menu,border:off

" Colour scheme:
colorscheme iceberg
set background=dark

" 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 <Leader>0 `[v`]
map <leader>m :marks<cr>
map <leader>R :registers<cr>
map <leader>v :vsplit<cr>
map <leader>h :split<cr>file browser
map <leader>! <esc>:only<cr>
" ctrl-c to unload a buffer
nnoremap <silent> <c-q> :bp\|bd #<cr>
nnoremap <silent> dr :GoDebugBreakpoint<cr>
nnoremap <silent> d! :GoDebugStart<cr>
nnoremap <silent> dc :GoDebugContinue<cr>
nnoremap <silent> dq :GoDebugStop<cr>
nnoremap <silent> dn :GoDebugNext<cr>
nnoremap <silent> ds :GoDebugStep<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)
" https://github.com/Shougo/deoplete.nvim/issues/965#issuecomment-482925193
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-Go configuration:
let g:go_fmt_autosave = 0
" Vim-Go seems to handle fix-on-save better than ALE:
let g:go_imports_autosave = 1
let g:go_fmt_options = {
      \ 'goimports': '-local github.com/sensiblecode.com/cantabular',
      \ }
autocmd BufNewFile,BufRead *.gohtml set syntax=gohtmltmpl
autocmd BufNewFile,BufRead *.go nmap <silent> <leader>g6 :GoAlternate!<cr>
" https://github.com/golang/tools/blob/master/gopls/doc/vim.md#vim-go
let g:go_def_mode='gopls'
let g:go_info_mode='gopls'

" Vim-Rust configuration:
let g:rustfmt_autosave = 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 <silent> <leader>af :ALEFirst<cr>
nmap <silent> <leader>al :ALELast<cr>
nmap <silent> <leader>an :ALENextWrap<cr>
nmap <silent> <leader>ap :ALEPreviousWrap<cr>
nmap <silent> <leader>aN :ALENext -error<cr>
nmap <silent> <leader>aP :ALEPrevious -error<cr>
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 = 50
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_go_gopls_options = '' " TODO: composite keys?
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
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! lightline.vim
packadd! tmux-complete.vim
packadd! vim-commentary
packadd! vim-surround
packadd! vim-yaml-folds