feat(autocmd): enhance editor with improved cursor behavior and LSP integration

lua/config/autocmd.lua

@@ -21,7 +21,7 @@ vim.api.nvim_create_autocmd({ 'FocusGained', 'TermClose', 'TermLeave' }, {
 vim.api.nvim_create_autocmd('TextYankPost', {
     group = augroup('highlight_yank'),
     callback = function()
-        vim.highlight.on_yank()
+        vim.highlight.on_yank({ timeout = 200, visual = true })
     end,
 })
 
@@ -34,17 +34,96 @@ vim.api.nvim_create_autocmd({ 'VimResized' }, {
 })
 
 -- go to last loc when opening a buffer
+-- vim.api.nvim_create_autocmd('BufReadPost', {
+--     group = augroup('last_loc'),
+--     callback = function()
+--         local mark = vim.api.nvim_buf_get_mark(0, '"')
+--         local lcount = vim.api.nvim_buf_line_count(0)
+--         if mark[1] > 0 and mark[1] <= lcount then
+--             pcall(vim.api.nvim_win_set_cursor, 0, mark)
+--         end
+--     end,
+-- })
+
+-- restore cursor to file position in previous editing session
 vim.api.nvim_create_autocmd('BufReadPost', {
-    group = augroup('last_loc'),
-    callback = function()
-        local mark = vim.api.nvim_buf_get_mark(0, '"')
-        local lcount = vim.api.nvim_buf_line_count(0)
-        if mark[1] > 0 and mark[1] <= lcount then
-            pcall(vim.api.nvim_win_set_cursor, 0, mark)
+    callback = function(args)
+        local mark = vim.api.nvim_buf_get_mark(args.buf, '"')
+        local line_count = vim.api.nvim_buf_line_count(args.buf)
+        if mark[1] > 0 and mark[1] <= line_count then
+            vim.api.nvim_win_set_cursor(0, mark)
+            -- defer centering slightly so it's applied after render
+            vim.schedule(function()
+                vim.cmd('normal! zz')
+            end)
         end
     end,
 })
 
+-- open help in vertical split
+vim.api.nvim_create_autocmd('FileType', {
+    pattern = 'help',
+    command = 'wincmd L',
+})
+
+-- no auto continue comments on new line
+vim.api.nvim_create_autocmd('FileType', {
+    group = vim.api.nvim_create_augroup('no_auto_comment', {}),
+    callback = function()
+        vim.opt_local.formatoptions:remove({ 'c', 'r', 'o' })
+    end,
+})
+
+-- show cursorline only in active window enable
+vim.api.nvim_create_autocmd({ 'WinEnter', 'BufEnter' }, {
+    group = vim.api.nvim_create_augroup('active_cursorline', { clear = true }),
+    callback = function()
+        vim.opt_local.cursorline = true
+    end,
+})
+
+-- show cursorline only in active window disable
+vim.api.nvim_create_autocmd({ 'WinLeave', 'BufLeave' }, {
+    group = 'active_cursorline',
+    callback = function()
+        vim.opt_local.cursorline = false
+    end,
+})
+
+-- ide like highlight when stopping cursor
+vim.api.nvim_create_autocmd('CursorMoved', {
+    group = vim.api.nvim_create_augroup('LspReferenceHighlight', { clear = true }),
+    desc = 'Highlight references under cursor',
+    callback = function()
+        -- Only run if the cursor is not in insert mode
+        if vim.fn.mode() ~= 'i' then
+            local clients = vim.lsp.get_clients({ bufnr = 0 })
+            local supports_highlight = false
+            for _, client in ipairs(clients) do
+                if client.server_capabilities.documentHighlightProvider then
+                    supports_highlight = true
+                    break -- Found a supporting client, no need to check others
+                end
+            end
+
+            -- 3. Proceed only if an LSP is active AND supports the feature
+            if supports_highlight then
+                vim.lsp.buf.clear_references()
+                vim.lsp.buf.document_highlight()
+            end
+        end
+    end,
+})
+
+-- ide like highlight when stopping cursor
+vim.api.nvim_create_autocmd('CursorMovedI', {
+    group = 'LspReferenceHighlight',
+    desc = 'Clear highlights when entering insert mode',
+    callback = function()
+        vim.lsp.buf.clear_references()
+    end,
+})
+
 -- close some filetypes with <q>
 vim.api.nvim_create_autocmd('FileType', {
     group = augroup('close_with_q'),