" Save, call isort on, then reload a python file.
function! do#isort()
  if &filetype !=# 'python'
    echohl ErrorMsg
    echomsg 'isort only supports python files'
    echohl None
  endif
  write!
  call system('isort '.expand('%:p'))
  edit!
endfunction

" Strip white space from right of all lines.
" TODO: Make do#rstrip_lines work on a range
function! do#rstrip_lines()
  let l:line = line('.')
  let l:column = col('.')
  execute '%s/\s\+$//e'
  nohlsearch
  call cursor(l:line, l:column)
endfunction

" TODO: Strip white space from left of all lines, retains relative indentation.

" Set the tab width for the current filetype
function! do#set_tab_width(width)
  execute 'setlocal tabstop='.a:width
  execute 'setlocal shiftwidth='.a:width
  execute 'setlocal softtabstop='.a:width
  echo 'Tab width is now '.a:width
endfunction

" Toggle GitHub style bullet checkbox
function! do#toggle_checkbox()
  " Get current line
  let l:line = getline('.')
  " Get the ' ' or 'x' character from within the task bullet
  let l:pattern = '[-\*+] \[\zs[ x]\ze]'
  let l:char = matchstr(l:line, l:pattern)
  " Toggle the ' ' or 'x' character
  if l:char ==? 'x'
    let l:char = ' '
  else
    let l:char = 'x'
  endif
  " Replace the current line with a new one
  call setline(line('.'), substitute(l:line, l:pattern, l:char, ''))
endfunction

" Show highlight groups under the cursor
function! do#cursor_highlight_groups()
  let l:hi = synIDattr(synID(line('.'),col('.'),1),'name')
  let l:trans = synIDattr(synID(line('.'),col('.'),0),'name')
  let l:lo = synIDattr(synIDtrans(synID(line('.'),col('.'),1)),'name')
  echo 'hi<'.l:hi.'> trans<'.l:trans.'> lo<'.l:lo.'>'
endfunction

" Rename C/C++ include guard
function! do#rename_include_guard(old)
  " Prompt for new guard name
  let l:new = input('Rename include guard: ', a:old)
  " Get the current position
  let l:pos = getpos('.')
  " Replace the old guard name with the new one
  exec '%s/\(#ifndef\|#define\|#endif\s\+\/\/\)\s\+\zs'.a:old.'/'.l:new.'/g'
  " Stop highlighting search results
  nohlsearch
  " Jump back to the start position
  call setpos('.', l:pos)
endfunction

" Setup and start a debugging command.
function! do#debug(...)
  packadd termdebug
  let l:command = 'TermdebugCommand'
  for l:arg in a:000
    let l:command = l:command.' '.l:arg
  endfor
  exec l:command
endfunction