" Press F9 to run the script
autocmd FileType python map <buffer> <F9> :w<CR>:exec '!python3' shellescape(@%, 1)<CR>
autocmd FileType python imap <buffer> <F9> <esc>:w<CR>:exec '!python3' shellescape(@%, 1)<CR>

set tabstop=4 shiftwidth=4 autoindent smartindent expandtab
setlocal colorcolumn=80

setlocal path=.,**
setlocal wildignore+=*.pyc

" Add search in other files inside the path
set include=^\\s*\\(from\\\|import\\)\\s*\\zs\\(\\S\\+\\s\\{-}\\)*\\ze\\($\\\|\ as\\)
" function! PyInclude(fname)
" " Following examples:
" " import conv.metrics
" " /conv.metrics/
" " conv/metrics.py
" " from conv import conversion as conv (2)
" " /conv import conversion/
" " conv/conversion.py conv.py
"     let parts = split(a:fname, ' import ') " (1) [conv.metrics] (2) [conv, conversion]
"     let l = parts[0] " (1) conv.metrics (2) conv
"     if len ( parts ) > 1
"         let r = parts[1] " conversion
"         let joined = join([l,r], '.') " conv.conversion
"         let fp = substitute(joined,  '\.', '/', 'g') . '.py'
"         let found =  glob(fp, 1)
"         if  len(found)
"             return found
"         endif
"     endif
"     return  substitute(joined,  '\.', '/', 'g') . '.py'
" endfunction
" setlocal includeexpr=PyInclude(v:fname)
setlocal define=^\\s*\\<\\(def\\\|class\\)\\>

let g:ale_fixers = {
\   '*': ['remove_trailing_lines', 'trim_whitespace'],
\   'python': ['black', 'add_blank_lines_for_python_control_statements'],
\}

function! LoadVirtualEnv()
  if filereadable('./.venv/bin/activate')
    let g:virtualenv_path = getcwd() . '/.venv/bin/python'
    let g:python3_host_prog = g:virtualenv_path
    echo "Loaded virtual environment: " . g:virtualenv_path
  elseif filereadable('./venv/bin/activate')
    let g:virtualenv_path = getcwd() . '/venv/bin/python'
    let g:python3_host_prog = g:virtualenv_path
    echo "Loaded virtual environment: " . g:virtualenv_path
  else
    " If no virtualenv is found, fall back to the default Python
    " Check if variables exist before unsetting them
    if exists('g:virtualenv_path')
      unlet g:virtualenv_path
    endif
    if exists('g:python3_host_prog')
      unlet g:python3_host_prog
    endif
  endif
endfunction

autocmd BufEnter * call LoadVirtualEnv()