vim-config/after/ftplugin/haskell.vim

setlocal ts=2 sw=2 expandtab

"set background=light
"set guifont=Neep\ Medium\ Semi-Condensed\ 18

" tags
call CmdAlias('hasktags', '!hasktags -c .<CR>')

" from
" https://raw.githubusercontent.com/begriffs/haskell-vim-now/master/git-hscope
call CmdAlias('codex', 'call system("haskell-ctags")<CR><CR>call LoadHscope()<CR>')
call CmdAlias('Cc', 'Clap commits<CR>')


map <leader>ctg :codex<CR>
set tags=tags;/,codex.tags;/

" classic ctags jump
" nnoremap <leader>gd <C-]>

" nnoremap <silent> <leader>cgd :cs find g <C-R>=expand("<cword>")<CR><CR>
nnoremap <silent> <C-\> :cs find c <C-R>=expand("<cword>")<CR><CR>

set cscopeprg=do_at_stack_root\ hscope
set csre
set csto=1 " search codex tags first
set nocst
" set cscopequickfix=s-,c-,d-,i-,t-,e-,a-

function! LoadHscope()
	set nocscopeverbose " suppress 'duplicate connection' error
	let hsf = findfile("hscope.out", ".;")
	if filereadable(hsf)
		exe "cs add " . hsf
	elseif $HSCOPE_DB != ""
		cs add $HSCOPE_DB
	endif
	set cscopeverbose
endfunction
au BufEnter /*.hs call LoadHscope()




"hoogle
nnoremap <leader>ho :Hoogle<CR>
nnoremap <leader>hc :HoogleClose<CR>


" haskell-vim
let g:haskell_classic_highlighting = 1
let g:haskell_indent_disable = 0
" let g:haskell_enable_quantification = 1
" let g:haskell_enable_recursivedo = 1
" let g:haskell_enable_arrowsyntax = 1
" let g:haskell_enable_pattern_synonyms = 1
" let g:haskell_enable_typeroles = 1
let g:haskell_indent_if = 0
let g:haskell_indent_case = 4
let g:haskell_indent_let = 4
let g:haskell_indent_where = 6
let g:haskell_indent_before_where = 2
let g:haskell_indent_after_bare_where = 2
let g:haskell_indent_do = 4
let g:haskell_indent_in = 0
let g:haskell_indent_guard = 4
" let g:haskell_disable_TH = 1

" vim-hindent
let g:hindent_on_save = 0
let g:hindent_indent_size = 4
let g:hindent_line_length = 80

" vim-stylishhask
let g:stylishask_on_save = 0

" haskellmode-vim
function! HaskellDocCurrentWord()
        let word = expand("<cword>")
        exe "IDoc " . word
endfunction

" done by LSP now
nmap <F7> :call HaskellDocCurrentWord()<CR><CR>

" nmap <silent> <F3> :silent update <bar> HsimportModule<CR>
" nmap <silent> <F4> :silent update <bar> HsimportSymbol<CR>


" liquid-types
let g:vim_annotations_offset = '/.liquid/'


" autocmd BufWritePost *.hs call s:check_and_lint()
" function! s:check_and_lint()
  " let l:path = expand('%:p')
  " let l:qflist = ghcmod#make('check', l:path)
  " call extend(l:qflist, ghcmod#make('lint', l:path))
  " call setqflist(l:qflist)
  " cwindow
  " if empty(l:qflist)
    " echo "No errors found"
  " endif
" endfunction


let g:ghcmod_hlint_options = ['--ignore=Eta reduce $']

" ALE
let g:ale_enabled = 0
let g:ale_linters = {'haskell':[], 'c':['clang']}
" let g:ale_linters = {'haskell':['ghc-mod', 'hdevtools', 'argon'], 'c':['clang']}
" let g:ale_fixers = {
	" \    'haskell': ['brittany'],
	" \}
let g:ale_haskell_hdevtools_options = "-g '-Wall' -g '-Wno-orphans'"
let g:ale_haskell_argon_error_level = 14
let g:ale_haskell_argon_warn_level = 10
let g:ale_haskell_argon_info_level = 6


let g:neoformat_enabled_haskell = ['brittany']



" LSP
let g:LanguageClient_rootMarkers = ['cabal.project', '*.cabal', 'stack.yaml']

" \ 'haskell': ['ghcide', "--lsp"],
let g:LanguageClient_serverCommands = {
	\ 'haskell': ['haskell-language-server-wrapper', '--lsp'],
    \ }


let g:echodoc#enable_at_startup = 1


call deoplete#enable()
call deoplete#custom#source('LanguageClient',
			\ 'min_pattern_length',
			\ 2)
inoremap <expr><tab> pumvisible() ? "\<c-n>" : "\<tab>"


let g:tagbar_type_haskell = {
    \ 'ctagsbin'  : 'hasktags',
    \ 'ctagsargs' : '-x -c -o-',
    \ 'kinds'     : [
        \  'm:modules:0:1',
        \  'd:data: 0:1',
        \  'd_gadt: data gadt:0:1',
        \  't:type names:0:1',
        \  'nt:new types:0:1',
        \  'c:classes:0:1',
        \  'cons:constructors:1:1',
        \  'c_gadt:constructor gadt:1:1',
        \  'c_a:constructor accessors:1:1',
        \  'ft:function types:1:1',
        \  'fi:function implementations:0:1',
        \  'i:instance:0:1',
        \  'o:others:0:1'
    \ ],
    \ 'sro'        : '.',
    \ 'kind2scope' : {
        \ 'm' : 'module',
        \ 'c' : 'class',
        \ 'd' : 'data',
        \ 't' : 'type',
        \ 'i' : 'instance'
    \ },
    \ 'scope2kind' : {
        \ 'module'   : 'm',
        \ 'class'    : 'c',
        \ 'data'     : 'd',
        \ 'type'     : 't',
        \ 'instance' : 'i'
    \ }
\ }


" vista
let g:vista_ctags_cmd = {
      \ 'haskell': 'hasktags -x -o - -c',
      \ }


" vim-lsp
if executable('haskell-language-server-wrapper')
    au User lsp_setup call lsp#register_server({
        \ 'name': 'hls',
        \ 'cmd': {server_info->['haskell-language-server-wrapper', '--lsp']},
        \ 'allowlist': ['haskell'],
        \ })
endif