From ee7752bfc783b0d8c568f0d09ffcbfdd20c0dcd3 Mon Sep 17 00:00:00 2001
From: Shengyu Zhang <i@silverrainz.me>
Date: Wed, 23 Oct 2024 23:11:51 +0800
Subject: [PATCH] feat(integration): General vim input helper

---
 .../snippet/integration/binding.vim           | 21 +----
 .../snippet/integration/plugin.vim            | 79 +++++++++++++++++--
 2 files changed, 75 insertions(+), 25 deletions(-)

diff --git a/src/sphinxnotes/snippet/integration/binding.vim b/src/sphinxnotes/snippet/integration/binding.vim
index 5919f0b..aa14a2f 100644
--- a/src/sphinxnotes/snippet/integration/binding.vim
+++ b/src/sphinxnotes/snippet/integration/binding.vim
@@ -38,27 +38,8 @@ function! g:SphinxNotesSnippetListAndUrl()
   call g:SphinxNotesSnippetList(function('s:CallUrl'), 'ds')
 endfunction
 
-function! g:SphinxNotesSnippetInput(id, item)
-  let content = system(join([s:snippet, 'get', '--' . a:item, a:id, '2>/dev/null'], ' '))
-  let content = substitute(content, '\n\+$', '', '') " skip trailing \n
-  if a:item == 'docname' 
-    " Create doc reference.
-    let content = ':doc:`/' . content . '`'
-  endif
-  execute 'normal! i' . content
-endfunction
-
-function! g:SphinxNotesSnippetListAndInputDocname()
-  function! s:InputDocname(selection)
-    call g:SphinxNotesSnippetInput(s:SplitID(a:selection), 'docname')
-  endfunction
-  call g:SphinxNotesSnippetList(function('s:InputDocname'), 'd')
-endfunction
-
 nmap <C-k>e :call g:SphinxNotesSnippetListAndEdit()<CR>
 nmap <C-k>u :call g:SphinxNotesSnippetListAndUrl()<CR>
-nmap <C-k>d :call g:SphinxNotesSnippetListAndInputDocname()<CR>
-" FIXME: can't return to insert mode even use a/startinsert!/C-o
-imap <C-k>d <C-o>:call g:SphinxNotesSnippetListAndInputDocname()<CR>
+nmap <C-k>i :call g:SphinxNotesSnippetInputSnippetAttr()<CR>
 
 " vim: set shiftwidth=2:
diff --git a/src/sphinxnotes/snippet/integration/plugin.vim b/src/sphinxnotes/snippet/integration/plugin.vim
index da79b48..169681c 100644
--- a/src/sphinxnotes/snippet/integration/plugin.vim
+++ b/src/sphinxnotes/snippet/integration/plugin.vim
@@ -8,25 +8,94 @@
 " NOTE: junegunn/fzf.vim is required
 
 let s:snippet = 'snippet'
+let s:width = 0.9
+let s:height = 0.6
 
+" TODO: remove
 function! s:SplitID(row)
   return split(a:row, ' ')[0]
 endfunction
 
-" TODO: extra opts
+" Use fzf to list all snippets, callback with arguments (selection).
 function! g:SphinxNotesSnippetList(callback, tags)
-  let l:width = 0.9
   let cmd = [s:snippet, 'list',
         \ '--tags', a:tags,
-        \ '--width', float2nr(&columns * l:width) - 2,
+        \ '--width', float2nr(&columns * s:width) - 2,
         \ ]
   " https://github.com/junegunn/fzf/blob/master/README-VIM.md#fzfrun
   call fzf#run({
         \ 'source': join(cmd, ' '),
         \ 'sink': a:callback,
         \ 'options': ['--with-nth', '2..', '--no-hscroll', '--header-lines', '1'],
-        \ 'window': {'width': l:width, 'height': 0.6},
+        \ 'window': {'width': s:width, 'height': s:height},
         \ })
 endfunction
 
-" vim: set shiftwidth=2:
+" Return the attribute value of specific snippet.
+function! g:SphinxNotesSnippetGet(id, attr)
+    let cmd = [s:snippet, 'get', a:id, '--' . a:attr]
+    return systemlist(join(cmd, ' '))
+endfunction
+
+" Use fzf to list all attr of specific snippet,
+" callback with arguments (attr_name, attr_value).
+function! g:SphinxNotesSnippetListSnippetAttrs(id, callback)
+    " Display attr -> Identify attr (also used as CLI option)
+    let attrs = {
+                \ 'Source':             'src',
+                \ 'URL':                'url',
+                \ 'Docname':            'docname',
+                \ 'Dependent files':    'deps',
+                \ 'Text':               'text',
+                \ 'Title':              'title',
+                \ }
+    let delim = '  '
+    let table = ['OPTION' . delim . 'ATTRIBUTE']
+    for name in keys(attrs)
+        call add(table, attrs[name] . delim . name)
+    endfor
+
+    " Local scope -> script scope, so vars can be access from inner function.
+    let s:id_for_list_snippet_attrs  = a:id
+    let s:cb_for_list_snippet_attrs = a:callback
+    function! s:SphinxNotesSnippetListSnippetAttrs_CB(selection)
+        let opt = split(a:selection, ' ')[0]
+        let val = g:SphinxNotesSnippetGet(s:id_for_list_snippet_attrs, opt)
+        call s:cb_for_list_snippet_attrs(opt, val) " finally call user's cb
+    endfunction
+
+    let preview_cmd = [s:snippet, 'get', a:id, '--$(echo {} | cut -d " " -f1)']
+    let info_cmd = ['echo', 'Index ID:', a:id]
+    call fzf#run({
+                \ 'source': table,
+                \ 'sink': function('s:SphinxNotesSnippetListSnippetAttrs_CB'),
+                \ 'options': [
+                \               '--header-lines', '1',
+                \               '--with-nth', '2..',
+                \               '--preview', join(preview_cmd, ' '),
+                \               '--preview-window', ',wrap',
+                \               '--info-command', join(info_cmd, ' '),
+                \            ],
+                \ 'window': {'width': s:width, 'height': s:height},
+                \ })
+endfunction
+
+function! g:SphinxNotesSnippetInputSnippetAttr(id)
+  function! s:SphinxNotesSnippetInputSnippetAttr_CB(attr, val)
+    if a:attr == 'docname' 
+      " Create doc reference.
+      let content = ':doc:`/' . val[0] . '`'
+      elif a:attr == 'title' 
+      " Create local section reference.
+      let content = '`' . val[0] . '`_'
+    else:
+      let content = join(val, '<CR>')
+    endif
+
+    execute 'normal! i' . content
+  endfunction
+
+  call g:SphinxNotesSnippetListSnippetAttrs(a:id, function('s:SphinxNotesSnippetInputSnippetAttr_CB'))
+endfunction
+
+  " vim: set shiftwidth=2: