Added optimizationsto statusline

nvim/.config/nvim/lua/DarthMooMancer/ui.lua

@@ -38,7 +38,6 @@ local function setup_statusline_highlights()
 	derive_hl('StatusDiagWarn', { base = 'StatusLine', fg = 'DiagnosticWarn' })
 	derive_hl('StatusDiagHint', { base = 'StatusLine', fg = 'DiagnosticHint' })
 	derive_hl('StatusCursor', { base = 'StatusLine', fg = 'Normal' })
-	-- derive_mode_hl('StatusPercent', 'Constant')
 end
 vim.api.nvim_create_autocmd('ColorScheme', {
 	callback = setup_statusline_highlights,
@@ -68,6 +67,9 @@ local mode_hl_map = {
 
 --- Git branch (async, cached per buffer, refreshed every 5s)
 local function update_git_branch()
+	if vim.bo.buftype ~= '' then
+		return
+	end
 	vim.system(
 		{ 'git', 'branch', '--show-current' },
 		{ text = true },
@@ -90,6 +92,39 @@ vim.api.nvim_create_autocmd({ 'BufEnter', 'FocusGained' }, {
 local progress = {}
 local spinner_frames =
 	{ '⣾', '⣽', '⣻', '⢿', '⡿', '⣟', '⣯', '⣷' }
+
+local frame = 0
+--- Clean stale progress messages periodically
+local progress_timer = vim.uv.new_timer()
+local function start_progress_timer()
+	if not progress_timer:is_active() then
+		progress_timer:start(0, 200, function()
+			local now = vim.loop.now()
+			for k, v in pairs(progress) do
+				local ttl = v.done and 2000 or 10000
+				if now - v.t > ttl then
+					progress[k] = nil
+				end
+			end
+			if next(progress) then
+				frame = (frame % #spinner_frames) + 1
+				-- vim.cmd('redrawstatus')
+				vim.schedule(function()
+					vim.cmd('redrawstatus')
+				end)
+			-- else
+			else
+				progress_timer:stop()
+				vim.schedule(function()
+					vim.cmd('redrawstatus')
+				end)
+			end
+			-- 	progress_timer:stop()
+			-- end
+		end)
+	end
+end
+
 vim.api.nvim_create_autocmd('LspProgress', {
 	callback = function(ev)
 		local d = ev.data
@@ -107,6 +142,7 @@ vim.api.nvim_create_autocmd('LspProgress', {
 				msg = (value.message or 'working...'):gsub('%%', '%%%%'),
 				t = vim.loop.now(),
 			}
+			start_progress_timer()
 		elseif value.kind == 'report' then
 			local msg_parts = {}
 			if value.message then
@@ -127,123 +163,147 @@ vim.api.nvim_create_autocmd('LspProgress', {
 		end
 	end,
 })
-local frame = 0
---- Clean stale progress messages periodically
-vim.uv.new_timer():start(
-	0,
-	200,
-	vim.schedule_wrap(function()
-		local now = vim.loop.now()
-		for k, v in pairs(progress) do
-			local ttl = v.done and 2000 or 10000
-			if now - v.t > ttl then
-				progress[k] = nil
-			end
-		end
-		if next(progress) then
-			frame = (frame % #spinner_frames) + 1
-		end
-		vim.cmd('redrawstatus')
-	end)
-)
+-- local frame = 0
+-- --- Clean stale progress messages periodically
+-- vim.uv.new_timer():start(
+-- 	0,
+-- 	200,
+-- 	vim.schedule_wrap(function()
+-- 		if next(progress) == nil then
+-- 			return progress_timer:stop()
+-- 			-- end
+-- 			-- else -- no progress
+-- 			-- 	progress_timer:stop()
+-- 		end
+-- 		local now = vim.loop.now()
+-- 		for k, v in pairs(progress) do
+-- 			local ttl = v.done and 2000 or 10000
+-- 			if now - v.t > ttl then
+-- 				progress[k] = nil
+-- 			end
+-- 		end
+-- 		if next(progress) then
+-- 			frame = (frame % #spinner_frames) + 1
+-- 		end
+-- 		vim.cmd('redrawstatus')
+-- 	end)
+-- )
 --- Build the LSP section of the statusline
-local function lsp_section()
-	local bufnr = vim.api.nvim_get_current_buf()
-	local clients = vim.lsp.get_clients({ bufnr = bufnr })
-	if #clients == 0 then
-		return ''
+vim.api.nvim_create_autocmd({ 'LspAttach', 'LspDetach' }, {
+	callback = function(args)
+		-- vim.schedule(function()
+		local names = {}
+		for _, c in ipairs(vim.lsp.get_clients({ bufnr = args.buf })) do
+			table.insert(names, c.name)
 		end
-	-- Show progress spinner if any active for visible clients
+		vim.b[args.buf].lsp_names = #names > 0
+				and (' ● ' .. table.concat(names, ', ') .. ' ')
+			or ''
+		-- end)
+	end,
+})
+
+-- local function lsp_section()
+-- 	-- Only check for progress (dynamic)
+-- 	local latest = nil
+-- 	for _, p in pairs(progress) do
+-- 		-- Simplified check: show latest active or recently done
+-- 		if not latest or p.t > latest.t then
+-- 			latest = p
+-- 		end
+-- 	end
+--
+-- 	if latest and (not latest.done or (vim.loop.now() - latest.t < 2000)) then
+-- 		return '%#StatusLspSpinner# ○ ' .. latest.msg .. ' %*'
+-- 	end
+--
+-- 	-- Use the cached names from the autocmd
+-- 	return '%#StatusLsp#' .. (vim.b.lsp_names or '') .. '%*'
+-- end
+local function lsp_section()
+	-- Only check progress for this buffer's clients
 	local client_ids = {}
-	for _, c in ipairs(clients) do
+	for _, c in
+		ipairs(vim.lsp.get_clients({ bufnr = vim.api.nvim_get_current_buf() }))
+	do
 		client_ids[c.id] = true
 	end
+	-- Filter progress by current buffer's clients
 	local latest = nil
 	for key, p in pairs(progress) do
 		local cid = tonumber(key:match('^(%d+):'))
-		if cid and client_ids[cid] and not p.done then
+		if cid and client_ids[cid] then
 			if not latest or p.t > latest.t then
 				latest = p
 			end
 		end
 	end
-	if latest then
+	if latest and (not latest.done or (vim.loop.now() - latest.t < 2000)) then
 		return '%#StatusLspSpinner# ○ ' .. latest.msg .. ' %*'
 	end
-	-- Fallback: most recent done entry (lasts 2s for smooth transition)
-	for key, p in pairs(progress) do
-		local cid = tonumber(key:match('^(%d+):'))
-		if cid and client_ids[cid] and p.done then
-			if not latest or p.t > latest.t then
-				latest = p
+	-- Use the cached names from the autocmd
+	return '%#StatusLsp#' .. (vim.b.lsp_names or '') .. '%*'
+end
+--- Diagnostics summary.
+local diag_cache = {}
+local function update_diag_cache(ev)
+	local bufnr = ev.buf
+	local counts = vim.diagnostic.count(bufnr)
+	local parts = {}
+	if counts[1] and counts[1] > 0 then
+		table.insert(parts, '%#StatusDiagError# E' .. counts[1] .. ' %*')
 	end
+	if counts[2] and counts[2] > 0 then
+		table.insert(parts, '%#StatusDiagWarn# W' .. counts[2] .. ' %*')
 	end
+	if counts[4] and counts[4] > 0 then
+		table.insert(parts, '%#StatusDiagHint# H' .. counts[4] .. ' %*')
 	end
-	if latest then
-		return '%#StatusLspSpinner# ○ ' .. latest.msg .. ' %*'
-	end
-	-- Idle: show client names
-	local names = {}
-	for _, c in ipairs(clients) do
-		table.insert(names, c.name)
-	end
-	return '%#StatusLsp# ● ' .. table.concat(names, ', ') .. ' %*'
+	diag_cache[bufnr] = table.concat(parts)
 end
 
---- Diagnostics summary.
-local function diag_section()
-	local diag = vim.diagnostic.get(vim.api.nvim_get_current_buf())
-	local parts = {}
-	local counts = { errors = 0, warnings = 0, hints = 0 }
-	for _, d in ipairs(diag) do
-		if d.severity == vim.diagnostic.severity.ERROR then
-			counts.errors = counts.errors + 1
-		elseif d.severity == vim.diagnostic.severity.WARN then
-			counts.warnings = counts.warnings + 1
-		elseif d.severity == vim.diagnostic.severity.HINT then
-			counts.hints = counts.hints + 1
-		end
-	end
-	if counts.errors > 0 then
-		table.insert(parts, '%#StatusDiagError# E' .. counts.errors .. ' %*')
-	end
-	if counts.warnings > 0 then
-		table.insert(parts, '%#StatusDiagWarn# W' .. counts.warnings .. ' %*')
-	end
-	if counts.hints > 0 then
-		table.insert(parts, '%#StatusDiagHint# H' .. counts.hints .. ' %*')
-	end
-	return table.concat(parts)
-end
+vim.api.nvim_create_autocmd(
+	'DiagnosticChanged',
+	{ callback = update_diag_cache }
+)
+
 --- Main statusline renderer.
 function _G.__statusline()
 	local m = vim.fn.mode()
 	local mode_hl = mode_hl_map[m] or 'StatusModeNormal'
-	local mode_txt = mode_map[m] or ' ??  '
-	local parts = {}
-	-- Mode
-	parts[#parts + 1] = '%#' .. mode_hl .. '#' .. mode_txt .. '%*'
-	-- Git
 	local git = vim.b.git_branch or ''
-	if git ~= '' then
-		parts[#parts + 1] = '%#StatusGit#  ' .. git .. ' %*'
+	local cur_buf = vim.api.nvim_get_current_buf()
+
+	local parts = {
+		'%#' .. mode_hl .. '#' .. (mode_map[m] or ' ??  ') .. '%*',
+		git ~= '' and ('%#StatusGit#  ' .. git .. ' %*') or '',
+		lsp_section(),
+		'%=',
+		-- diag_cache[cur_buf] or '', -- Per-buffer cache lookup
+		diag_cache[cur_buf] or (function()
+			local parts = {}
+			local counts = vim.diagnostic.count(cur_buf)
+			if counts[1] and counts[1] > 0 then
+				table.insert(
+					parts,
+					'%#StatusDiagError# E' .. counts[1] .. ' %*'
+				)
 			end
-	-- LSP
-	parts[#parts + 1] = lsp_section()
-	-- Right align
-	parts[#parts + 1] = '%='
-	-- Diagnostics
-	parts[#parts + 1] = diag_section()
-	-- Cursor position
-	parts[#parts + 1] = '%#StatusCursor# %l:%-2c %*'
-	-- Percentage
-	parts[#parts + 1] = '%#' .. mode_hl .. '# %p%% %*'
+			if counts[2] and counts[2] > 0 then
+				table.insert(parts, '%#StatusDiagWarn# W' .. counts[2] .. ' %*')
+			end
+			if counts[4] and counts[4] > 0 then
+				table.insert(parts, '%#StatusDiagHint# H' .. counts[4] .. ' %*')
+			end
+			return table.concat(parts)
+		end)(),
+		'%#StatusCursor# %l:%-2c %*',
+		'%#' .. mode_hl .. '# %p%% %*',
+	}
 	return table.concat(parts)
 end
 vim.o.statusline = '%!v:lua.__statusline()'
 
-local helpers = require('incline.helpers')
-local devicons = require('nvim-web-devicons')
 require('incline').setup({
 	window = {
 		padding = 0,
@@ -255,7 +315,8 @@ require('incline').setup({
 		if filename == '' then
 			filename = '[No Name]'
 		end
-		local ft_icon, ft_color = devicons.get_icon_color(filename)
+		local ft_icon, ft_color =
+			require('nvim-web-devicons').get_icon_color(filename)
 		local modified = vim.bo[props.buf].modified
 		return {
 			ft_icon and {
@@ -263,7 +324,7 @@ require('incline').setup({
 				ft_icon,
 				' ',
 				guibg = ft_color,
-				guifg = helpers.contrast_color(ft_color),
+				guifg = require('incline.helpers').contrast_color(ft_color),
 			} or '',
 			' ',
 			{ filename, gui = modified and 'bold,italic' or 'bold' },