" Airline
if !exists('g:airline_symbols')
  let g:airline_symbols = {}
endif
let g:airline_left_sep = ''
let g:airline_left_alt_sep = ''
let g:airline_right_sep = ''
let g:airline_right_alt_sep = ''
let g:airline_symbols.branch = ''
let g:airline_symbols.readonly = ''
let g:airline_symbols.linenr = ''
let g:airline#extensions#tabline#left_sep=''
let g:airline#extensions#tabline#left_alt_sep=''
let g:airline_symbols.maxlinenr = ''
let g:airline#extensions#tabline#enabled = 0
let g:airline#extensions#wordcount#enabled = 1
let g:airline_theme="minimalist"


" bufferline.nvim
set termguicolors
lua << EOF
require("bufferline").setup {
  options = {
    diagnostics = "coc",
  }
}
EOF

" GitGutter
autocmd TextChanged * GitGutter


" JavaComplete
autocmd Filetype java setlocal omnifunc=javacomplete#CompleteParamsInfo


" NerdCommenter
let g:NERDSpaceDelims = 1
let g:NERDCompactSexyComs = 1
let g:NERDDefaultAlign = "left"
let g:NERDCommentEmptyLines = 1
let g:NERDTrimTrailingWhitespace = 1


" NerdTree
let NERDTreeMinimalUI = 0
let g:NERDTreeHighlightFolders = 1
let g:NERDTreeHighlightFoldersFullName = 1

" autoclose if nerdtree is last open window
augroup NERDTree
	autocmd!
	autocmd bufenter * if (winnr("$") == 1 && exists("b:NERDTree") && b:NERDTree.isTabTree()) | q | endif
augroup end


" python syntax
let g:python_highlight_all = 1


" Simpylfold
let g:SimpylFold_docstring_preview = 1


" Ale
let g:ale_linters = {"python": ["flake8"], "python3": ["flake8"]}
let g:ale_echo_msg_format = '[%linter%] %s [%severity%]'
let g:ale_sign_error = '✘'
let g:ale_sign_warning = '⚠'


" VIM-MARKDOWN
let g:markdown_syntax_conceal=0
let g:vim_markdown_conceal = 0


" Whitespace
autocmd BufEnter *[^(.rmd|.snippets)] EnableStripWhitespaceOnSave
autocmd BufEnter *.snippets DisableStripWhitespaceOnSave


" Yankstack
let g:yankstack_map_keys = 0
call yankstack#setup()

" Copilot
imap <silent><script><expr> <a-cr> copilot#Accept("\<CR>")
let g:copilot_no_tab_map = v:true
ino <TAB> <NOP>
highlight CopilotSuggestion guifg=#FFAF5F ctermfg=8


" CoC nvim
set hidden
set nobackup
set nowritebackup
set cmdheight=2
set updatetime=300
set shortmess+=c
let g:coc_filetype_map = {'tex': 'latex'}
" Use tab for trigger completion with characters ahead and navigate.
" Use command ':verbose imap <tab>' to make sure tab is not mapped by other plugin.

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

" Insert <tab> when previous text is space, refresh completion if not.
inoremap <silent><expr> <TAB>
    \ coc#pum#visible() ? coc#pum#next(1):
    \ <SID>check_back_space() ? "\<Tab>" :
    \ coc#refresh()
inoremap <expr><S-TAB> coc#pum#visible() ? coc#pum#prev(1) : "\<C-h>"

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

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

" Use <cr> to confirm completion, `<C-g>u` means break undo chain at current position.
" Coc only does snippet and additional edit on confirm.
" inoremap <expr> <cr> pumvisible() ? "\<C-y>" : "\<C-g>u\<CR>"
" Or use `complete_info` if your vim support it, like:
inoremap <expr> <cr> complete_info()["selected"] != "-1" ? "\<C-y>" : "\<C-g>u\<CR>"

" Use `[g` and `]g` to navigate diagnostics
nmap <silent> gp <Plug>(coc-diagnostic-prev)
nmap <silent> gn <Plug>(coc-diagnostic-next)

" Remap keys for gotos
nmap <silent> gd <Plug>(coc-definition)
nmap <silent> gy <Plug>(coc-type-definition)
nmap <silent> gi <Plug>(coc-implementation)
nmap <silent> gr <Plug>(coc-references)

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

" Highlight symbol under cursor on CursorHold
autocmd CursorHold * silent call CocActionAsync('highlight')

" Remap for rename current word
nmap <leader>rn <Plug>(coc-rename)

" Remap for format selected region
xmap <leader>f  <Plug>(coc-format-selected)
nmap <leader>f  <Plug>(coc-format-selected)

augroup mygroup
  autocmd!
  " Setup formatexpr specified filetype(s).
  autocmd FileType typescript,json setl formatexpr=CocAction('formatSelected')
  " Update signature help on jump placeholder
  autocmd User CocJumpPlaceholder call CocActionAsync('showSignatureHelp')
augroup end

" Remap for do codeAction of selected region, ex: `<leader>aap` for current paragraph
xmap <leader>a  <Plug>(coc-codeaction-selected)
nmap <leader>a  <Plug>(coc-codeaction-selected)

" Implement methods for trait
nnoremap <silent> <space>i  :call CocActionAsync('codeAction', '', 'Implement missing members')<cr>

" Remap for do codeAction of current line
nmap <leader>ac  <Plug>(coc-codeaction)
" Fix autofix problem of current line
nmap <leader>qf  <Plug>(coc-fix-current)

" Create mappings for function text object, requires document symbols feature of languageserver.
xmap if <Plug>(coc-funcobj-i)
xmap af <Plug>(coc-funcobj-a)
omap if <Plug>(coc-funcobj-i)
omap af <Plug>(coc-funcobj-a)

" Use <C-d> for select selections ranges, needs server support, like: coc-tsserver, coc-python
nmap <silent> <C-d> <Plug>(coc-range-select)
xmap <silent> <C-d> <Plug>(coc-range-select)

" Use `:Format` to format current buffer
command! -nargs=0 Format :call CocAction('format')

" Use `:Fold` to fold current buffer
command! -nargs=? Fold :call     CocAction('fold', <f-args>)

" use `:OR` for organize import of current buffer
command! -nargs=0 OR   :call     CocAction('runCommand', 'editor.action.organizeImport')

" Add status line support, for integration with other plugin, checkout `:h coc-status`
set statusline^=%{coc#status()}%{get(b:,'coc_current_function','')}

" Using CocList
" Show all diagnostics
nnoremap <silent> <space>a  :<C-u>CocList diagnostics<cr>
" Manage extensions
nnoremap <silent> <space>e  :<C-u>CocList extensions<cr>
" Show commands
nnoremap <silent> <space>c  :<C-u>CocList commands<cr>
" Find symbol of current document
nnoremap <silent> <space>o  :<C-u>CocList outline<cr>
" Search workspace symbols
nnoremap <silent> <space>s  :<C-u>CocList -I symbols<cr>
" Do default action for next item.
nnoremap <silent> <space>j  :<C-u>CocNext<CR>
" Do default action for previous item.
nnoremap <silent> <space>k  :<C-u>CocPrev<CR>
" Resume latest coc list
nnoremap <silent> <space>p  :<C-u>CocListResume<CR>

if !exists('SessionLoad')
    " Open Tagbar
    autocmd VimEnter * nested :call tagbar#autoopen(1)

    " Open NerdTREE
    autocmd VimEnter * NERDTree | wincmd p
endif

" If another buffer tries to replace NERDTree, put it in the other window, and bring back NERDTree.
autocmd BufEnter * if bufname('#') =~ 'NERD_tree_\d\+' && bufname('%') !~ 'NERD_tree_\d\+' && winnr('$') > 1 |
    \ let buf=bufnr() | buffer# | execute "normal! \<C-W>w" | execute 'buffer'.buf | endif

" Blame
" lua << EOF
" require("blame_line").setup {
"     -- whether the blame line should be shown in visual modes
"     show_in_visual = true,
"
"     -- whether the blame line should be shown in insert mode
"     show_in_insert = true,
"
"     -- the string to prefix the blame line with
"     prefix = " ",
"
"     -- String specifying the the blame line format.
"     -- Any combination of the following specifiers, along with any additional text.
"     --     - `"<author>"` - the author of the change.
"     --     - `"<author-mail>"` - the email of the author.
"     --     - `"<author-time>"` - the time the author made the change.
"     --     - `"<committer>"` - the person who committed the change to the repository.
"     --     - `"<committer-mail>"` - the email of the committer.
"     --     - `"<committer-time>"` - the time the change was committed to the repository.
"     --     - `"<summary>"` - the commit summary/message.
"     --     - `"<commit-short>"` - short portion of the commit hash.
"     --     - `"<commit-long>"` - the full commit hash.
"     template = "<author> • <author-time> • <summary>",
"
"     -- The date format settings, for `"<author-time>"` and `"<committer-time>"`
"     date = {
"         -- whether the date should be relative instead of precise
"         -- (I.E. "3 days ago" instead of "09-06-2022".
"         relative = true,
"
"         -- `strftime` compatible format string.
"         -- Only used if `date.relative == false`
"         format = "%d-%m-%y",
"     },
"
"     -- The highlight group to highlight the blame line with.
"     -- The highlight of this group defaults to `Comment`.
"     hl_group = "BlameLineNvim",
"
"     -- The delay in milliseconds between a cursor movement and
"     -- when the blame line should appear/update
"     delay = 0,
" }
" EOF


" Vim-markdown
let g:vim_markdown_conceal = 0