nvim_typescript.vim

let s:local_tss = 0

function! s:check_node() abort "{{{
  call health#report_start('Find Node')
  if executable('node')
    call health#report_ok('node is in $PATH')
  else
    call health#report_error('node is not in $PATH',
          \ 'Typescript requires node')
  endif
endfunction "}}}

function! s:check_local_tsserver() abort "{{{
  call health#report_start('Find Local Typescript')
  let l:localServer = getcwd().'/node_modules/.bin/tsserver'
  if executable(l:localServer)
    let s:local_tss = 1
    call health#report_ok('local tsserver is found')
  else
    call health#report_warn('No local server found, using global',
          \"Install typescript locally for more accurate tooling\n".
          \'$ npm install typescript --save-dev')
  endif
endfunction "}}}

function! s:check_global_tsserver() abort "{{{
  call health#report_start('Find Global Typescript')
  if executable('tsserver')
    call health#report_ok('global tsserver is found')
  elseif s:local_tss
    call health#report_ok('No global server found but local server found')
  else
    call health#report_error('No global server found and no local server',
          \"Install typescript globally or locally\n".
          \"$ npm install -g typescript\n".
          \'$ npm install typescript --save-dev')
  endif
endfunction "}}}

function! s:check_config_file() abort "{{{
  call health#report_start('Find tsconfg.json or jsconfig.json')
  if TSFindConfig()
    call health#report_ok('config is found!')
  else
    call health#report_error('no config file is found', [
          \'See docs for info: https://www.typescriptlang.org/docs/handbook/tsconfig-json.html',
          \'Is the file named correctly?'
          \])
  endif
endfunction "}}}

function! s:check_deoplete() abort "{{{
  call health#report_start('Check for deoplete')
  if exists('g:loaded_deoplete')
    call health#report_ok('Deoplete is found!')
  else
    call health#report_error('Deoplete is not loaded',
          \ "Install Deoplete for Async completion\n".
          \ 'https://github.com/Shougo/deoplete.nvim')
  endif
endfunction "}}}

function! s:check_required_python_for_nvim_typescript() abort "{{{
  call health#report_start('Check for python 3 bindings')
  if has('python3')
    call health#report_ok('has("python3") was successful')
  else
    call health#report_error('has("python3") was not successful', [
          \ 'Please install the python3 package for neovim.',
          \ 'A good guide can be found here: ' .
          \ 'https://github.com/tweekmonster/nvim-python-doctor/'
          \ . 'wiki/Advanced:-Using-pyenv'
          \ ]
          \ )
  endif
endfunction "}}}

function! health#nvim_typescript#check() abort
  call s:check_node()
  call s:check_local_tsserver()
  call s:check_global_tsserver()
  call s:check_config_file()
  call s:check_deoplete()
  call s:check_required_python_for_nvim_typescript()
endfunction