" ------------------------------------------------------------------------
" functions that call python code
" ------------------------------------------------------------------------
function! jedi#goto()
    python jedi_vim.goto()
endfunction


function! jedi#get_definition()
    python jedi_vim.goto(is_definition=True)
endfunction


function! jedi#related_names()
    python jedi_vim.goto(is_related_name=True)
endfunction


function! jedi#rename(...)
    python jedi_vim.rename()
endfunction


function! jedi#complete(findstart, base)
    python jedi_vim.complete()
endfunction


function jedi#show_func_def()
    python jedi_vim.show_func_def()
endfunction


" ------------------------------------------------------------------------
" show_pydoc
" ------------------------------------------------------------------------
function! jedi#show_pydoc()
python << PYTHONEOF
if 1:
    script = jedi_vim.get_script()
    try:
        definitions = script.get_definition()
    except jedi_vim.jedi.NotFoundError:
        definitions = []
    except Exception:
        # print to stdout, will be in :messages
        definitions = []
        print("Exception, this shouldn't happen.")
        print(traceback.format_exc())

    if not definitions:
        vim.command('return')
    else:
        docs = ['Docstring for %s\n%s\n%s' % (d.desc_with_module, '='*40, d.doc) if d.doc
                    else '|No Docstring for %s|' % d for d in definitions]
        text = ('\n' + '-' * 79 + '\n').join(docs)
        vim.command('let l:doc = %s' % repr(jedi_vim.PythonToVimStr(text)))
        vim.command('let l:doc_lines = %s' % len(text.split('\n')))
PYTHONEOF
    if bufnr("__doc__") > 0
        " If the __doc__ buffer is open in the current window, jump to it
        silent execute "sbuffer ".bufnr("__doc__")
    else
        split '__doc__'
    endif

    setlocal modifiable
    setlocal noswapfile
    setlocal buftype=nofile
    silent normal! ggdG
    silent $put=l:doc
    silent normal! 1Gdd
    setlocal nomodifiable
    setlocal nomodified
    setlocal filetype=rst

    if l:doc_lines > 30  " max lines for plugin
        let l:doc_lines = 30
    endif
    execute "resize ".l:doc_lines

    " quit comands
    nnoremap <buffer> q ZQ
    nnoremap <buffer> K ZQ

    " highlight python code within rst
    unlet! b:current_syntax
    syn include @rstPythonScript syntax/python.vim
    " 4 spaces
    syn region rstPythonRegion start=/^\v {4}/ end=/\v^( {4}|\n)@!/ contains=@rstPythonScript
    " >>> python code -> (doctests)
    syn region rstPythonRegion matchgroup=pythonDoctest start=/^>>>\s*/ end=/\n/ contains=@rstPythonScript
    let b:current_syntax = "rst"
endfunction


" ------------------------------------------------------------------------
" helper functions
" ------------------------------------------------------------------------
function! jedi#new_buffer(path)
    if g:jedi#use_tabs_not_buffers
        python jedi_vim.tabnew(vim.eval('a:path'))
    else
        if !&hidden && &modified
            w
        endif
        execute 'edit '.a:path
    endif
endfunction

function! s:add_goto_window()
    set lazyredraw
    cclose
    execute 'belowright copen 3'
    set nolazyredraw
    if g:jedi#use_tabs_not_buffers == 1
        map <buffer> <CR> :call jedi#goto_window_on_enter()<CR>
    endif
    au WinLeave <buffer> q  " automatically leave, if an option is chosen
    redraw!
endfunction


function! jedi#goto_window_on_enter()
    let l:list = getqflist()
    let l:data = l:list[line('.') - 1]
    if l:data.bufnr
        " close goto_window buffer
        normal ZQ
        python jedi_vim.tabnew(vim.eval("bufname(l:data.bufnr)"))
        call cursor(l:data.lnum, l:data.col)
    else
        echohl WarningMsg | echo "Builtin module cannot be opened." | echohl None
    endif
endfunction


function! jedi#syn_stack()
    if !exists("*synstack")
        return []
    endif
    return map(synstack(line('.'), col('.') - 1), 'synIDattr(v:val, "name")')
endfunc


function! jedi#do_popup_on_dot()
    let highlight_groups = jedi#syn_stack()
    for a in highlight_groups
        if a == 'pythonDoctest'
            return 1
        endif
    endfor

    for a in highlight_groups
        for b in ['pythonString', 'pythonComment', 'pythonNumber']
            if a == b
                return 0 
            endif
        endfor
    endfor
    return 1
endfunc

function! jedi#configure_function_definition()
    autocmd InsertLeave <buffer> python jedi_vim.clear_func_def()
    autocmd CursorMovedI <buffer> call jedi#show_func_def()
endfunction