function! build#dir(dir) abort
  let l:cwd = getcwd()
  let $BUILD_DIR = l:cwd.'/'.a:dir
  let g:ycm_clangd_args = ['--compile-commands-dir='.$BUILD_DIR]
  YcmRestartServer
endfunction

function! build#targets(ArgLead, CmdLine, CursorPos) abort
  let l:targets = []
  if filereadable($BUILD_DIR.'/build.ninja')
    for l:target in split(system('ninja -C '.$BUILD_DIR.' -t targets'), '\n')
      call add(l:targets, substitute(l:target, ':.*$', '', ''))
    endfor
  elseif filereadable($BUILD_DIR.'/Makefile')
    " TODO: support make
  endif
  return join(l:targets, "\n")
endfunction

function! build#run(...) abort
  let l:build_dir = substitute($BUILD_DIR, '\/$', '', '')
  if filereadable($BUILD_DIR.'/build.ninja')
    execute 'terminal ninja -C '.l:build_dir.' '.join(a:000, ' ')
  elseif filereadable($BUILD_DIR.'/Makefile')
    execute 'terminal make -C '.l:build_dir.' '.join(a:000, ' ')
  endif
endfunction