" 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

" Calendar-Vim Integration — auto-detect when calendar-vim is loaded.
augroup nuwiki_calendar_detect
  autocmd!
  autocmd FileType vimwiki call s:nuwiki_setup_calendar()
augroup END
function! s:nuwiki_setup_calendar() abort
  if !get(g:, 'nuwiki_use_calendar', 1) || get(g:, 'nuwiki_no_calendar', 0)
    return
  endif
  if exists('*calendar#open') || exists(':Calendar') == 2
    " Wire nuwiki's diary hooks unless the user set a custom (non-default) one.
    " calendar-vim's own default is 'calendar#diary' (writes to ~/diary); we
    " overwrite that so paths come from the wiki root config instead.
    let l:act = get(g:, 'calendar_action', '')
    if l:act ==# '' || l:act ==# 'calendar#diary'
      let g:calendar_action = 'vimwiki#diary#calendar_action'
    endif
    let l:sign = get(g:, 'calendar_sign', '')
    if l:sign ==# '' || l:sign ==# 'calendar#sign'
      let g:calendar_sign = 'vimwiki#diary#calendar_sign'
    endif
  endif
endfunction

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)
  nnoremap <silent> <Leader>ww         :call nuwiki#commands#open_wiki_path(0)<CR>
  nnoremap <silent> <Leader>wt         :call nuwiki#commands#open_wiki_path(1)<CR>
  nnoremap <silent> <Leader>ws         :call nuwiki#commands#wiki_ui_select()<CR>
  nnoremap <silent> <Leader>wi         :call nuwiki#commands#open_diary_index_path()<CR>
  nnoremap <silent> <Leader>w<Leader>w :call nuwiki#commands#open_diary_path(0)<CR>
  nnoremap <silent> <Leader>w<Leader>y :call nuwiki#commands#open_diary_path(-1)<CR>
  nnoremap <silent> <Leader>w<Leader>t :call nuwiki#commands#open_diary_path(1)<CR>
  nnoremap <silent> <Leader>w<Leader>i :call nuwiki#commands#diary_generate_index()<CR>
endif