" plugin/nuwiki.vim — universal Vim/Neovim entry point.
"
" Neovim 0.11+ users are expected to call `require('nuwiki').setup({})` from
" their config (lazy.nvim does this automatically through `opts`). On Vim
" we start the LSP client when a vimwiki buffer is loaded.
"
" This file contains wiring only — all logic lives in
" the Rust language server.

if exists('g:loaded_nuwiki')
  finish
endif
let g:loaded_nuwiki = 1

" Resolve the plugin root NOW, while this script is being sourced and
" <sfile> is still valid. Commands that need this path must reference
" s:plugin_root — re-expanding <sfile> inside a command body evaluates
" at execution time when there is no sourcing context, producing an
" empty path (hence the E484 "Cannot open ./scripts/…" error).
let s:plugin_root = fnamemodify(resolve(expand('<sfile>:p')), ':h:h')

" :NuwikiInstall — install the nuwiki-ls binary without needing a
" plugin-manager build hook. Available for both Vim and Neovim.
if has('nvim')
  command! -nargs=0 NuwikiInstall lua require('nuwiki.install').install()
else
  command! -nargs=0 NuwikiInstall execute 'source' fnameescape(s:plugin_root . '/scripts/download_bin.vim')
endif

if has('nvim')
  " Neovim path is initialised by `require('nuwiki').setup()`. Nothing else
  " to do at vimscript boot — wait until the user runs setup.
  finish
endif

" Vim path: start the LSP client the first time a vimwiki buffer is opened.
augroup nuwiki_vim_lsp_start
  autocmd!
  autocmd FileType vimwiki call nuwiki#lsp#start()
augroup END

" Global wiki-picker commands — available from any buffer so a wiki can be
" chosen before a .wiki file exists. The picker reads its list from config
" (no LSP); opening the chosen index then auto-starts the server. The
" buffer-local :VimwikiUISelect in ftplugin/vimwiki.vim shadows these inside
" wiki buffers but dispatches to the same function.
command! -nargs=0 VimwikiUISelect call nuwiki#commands#wiki_ui_select()
command! -nargs=0 NuwikiUISelect  call nuwiki#commands#wiki_ui_select()

" Global entry-point mappings — work from any buffer, not just .wiki files.
" Files are opened directly from config (no LSP required); the server
" auto-starts via the FileType autocmd once the vimwiki buffer loads.
if !get(g:, 'nuwiki_no_default_mappings', 0)
  " Prefix mirrors vimwiki's g:vimwiki_map_prefix (default <Leader>w). Built
  " with :exe so a custom prefix relocates the whole entry-point family.
  let s:prefix = get(g:, 'nuwiki_map_prefix', '<Leader>w')
  exe 'nnoremap <silent> ' . s:prefix . 'w :call nuwiki#commands#open_wiki_path(0)<CR>'
  exe 'nnoremap <silent> ' . s:prefix . 't :call nuwiki#commands#open_wiki_path(1)<CR>'
  exe 'nnoremap <silent> ' . s:prefix . 's :call nuwiki#commands#wiki_ui_select()<CR>'
  exe 'nnoremap <silent> ' . s:prefix . 'i :call nuwiki#commands#open_diary_index_path()<CR>'
  exe 'nnoremap <silent> ' . s:prefix . '<Leader>w :call nuwiki#commands#open_diary_path(0)<CR>'
  exe 'nnoremap <silent> ' . s:prefix . '<Leader>y :call nuwiki#commands#open_diary_path(-1)<CR>'
  exe 'nnoremap <silent> ' . s:prefix . '<Leader>t :tabnew<CR>:call nuwiki#commands#open_diary_path(0)<CR>'
  exe 'nnoremap <silent> ' . s:prefix . '<Leader>m :call nuwiki#commands#open_diary_path(1)<CR>'
  exe 'nnoremap <silent> ' . s:prefix . '<Leader>i :call nuwiki#commands#diary_generate_index()<CR>'
  unlet s:prefix
endif