neovim: Restore some lost LSP config

neovim/lua/jdkaplan/cool_theme.lua

@@ -108,7 +108,7 @@ local theme = lush(function(injected_functions)
         Error          { fg = '#EEEEEE', bg = '#AF0000' }, -- Any erroneous construct
         Todo           { fg = '#D70000' }, -- Anything that needs extra attention; mostly the keywords TODO FIXME and XXX
 
-        LspInlayHint                { fg = '#777777' },
+        LspInlayHint                { Comment },
         LspReferenceText            {} , -- Used for highlighting "text" references
         LspReferenceRead            {} , -- Used for highlighting "read" references
         LspReferenceWrite           {} , -- Used for highlighting "write" references

neovim/lua/jdkaplan/warm_theme.lua

@@ -108,7 +108,7 @@ local theme = lush(function(injected_functions)
         Error          { fg = '#000000', bg = '#FF5F00' }, -- Any erroneous construct
         Todo           { fg = '#FF0000' }, -- Anything that needs extra attention; mostly the keywords TODO FIXME and XXX
 
-        LspInlayHint                { fg = '#015F00' },
+        LspInlayHint                { Comment },
         LspReferenceText            {} , -- Used for highlighting "text" references
         LspReferenceRead            {} , -- Used for highlighting "read" references
         LspReferenceWrite           {} , -- Used for highlighting "write" references

neovim/lua/plugins/ide.lua

@@ -1,5 +1,29 @@
 vim.lsp.inlay_hint.enable(true)
 
+vim.api.nvim_create_autocmd('LspAttach', {
+    group = vim.api.nvim_create_augroup('jdkaplan.lsp', {}),
+    callback = function(args)
+        local client = assert(vim.lsp.get_client_by_id(args.data.client_id))
+
+        if client:supports_method('textDocument/completion') then
+            vim.lsp.completion.enable(true, client.id, args.buf, {autotrigger = false})
+        end
+
+        -- Usually not needed if server supports "textDocument/willSaveWaitUntil".
+        already_waits = client:supports_method('textDocument/willSaveWaitUntil')
+        can_fmt = client:supports_method('textDocument/formatting')
+        if not already_waits and can_fmt then
+            vim.api.nvim_create_autocmd('BufWritePre', {
+                group = vim.api.nvim_create_augroup('jdkaplan.lsp', {clear=false}),
+                buffer = args.buf,
+                callback = function()
+                    vim.lsp.buf.format({ bufnr = args.buf, id = client.id, timeout_ms = 1000 })
+                end,
+            })
+        end
+    end,
+})
+
 return {
     -- HUD
     {