Initial commit

1 files changed, 741 insertions, 0 deletions

diff --git a/nvim/init.lua b/nvim/init.lua
new file mode 100644
index 0000000..246108c
--- /dev/null
+++ b/nvim/init.lua
@@ -0,0 +1,741 @@
+-- theme & transparency
+vim.cmd.colorscheme("unokai")
+vim.api.nvim_set_hl(0, "Normal", { bg = "none" })
+vim.api.nvim_set_hl(0, "NormalNC", { bg = "none" })
+vim.api.nvim_set_hl(0, "EndOfBuffer", { bg = "none" })
+
+-- Basic settings
+vim.opt.number = true                              -- Line numbers
+vim.opt.relativenumber = true                      -- Relative line numbers
+vim.opt.cursorline = true                          -- Highlight current line
+vim.opt.wrap = false                               -- Don't wrap lines
+vim.opt.scrolloff = 10                             -- Keep 10 lines above/below cursor 
+vim.opt.sidescrolloff = 8                          -- Keep 8 columns left/right of cursor
+
+-- Indentation
+vim.opt.tabstop = 2                                -- Tab width
+vim.opt.shiftwidth = 2                             -- Indent width
+vim.opt.softtabstop = 2                            -- Soft tab stop
+vim.opt.expandtab = true                           -- Use spaces instead of tabs
+vim.opt.smartindent = true                         -- Smart auto-indenting
+vim.opt.autoindent = true                          -- Copy indent from current line
+
+-- Search settings
+vim.opt.ignorecase = true                          -- Case insensitive search
+vim.opt.smartcase = true                           -- Case sensitive if uppercase in search
+vim.opt.hlsearch = false                           -- Don't highlight search results 
+vim.opt.incsearch = true                           -- Show matches as you type
+
+-- Visual settings
+vim.opt.termguicolors = true                       -- Enable 24-bit colors
+vim.opt.signcolumn = "yes"                         -- Always show sign column
+vim.opt.colorcolumn = "100"                        -- Show column at 100 characters
+vim.opt.showmatch = true                           -- Highlight matching brackets
+vim.opt.matchtime = 2                              -- How long to show matching bracket
+vim.opt.cmdheight = 1                              -- Command line height
+vim.opt.completeopt = "menuone,noinsert,noselect"  -- Completion options 
+vim.opt.showmode = false                           -- Don't show mode in command line 
+vim.opt.pumheight = 10                             -- Popup menu height 
+vim.opt.pumblend = 10                              -- Popup menu transparency 
+vim.opt.winblend = 0                               -- Floating window transparency 
+vim.opt.conceallevel = 0                           -- Don't hide markup 
+vim.opt.concealcursor = ""                         -- Don't hide cursor line markup 
+vim.opt.lazyredraw = true                          -- Don't redraw during macros
+vim.opt.synmaxcol = 300                            -- Syntax highlighting limit 
+
+-- File handling
+vim.opt.backup = false                             -- Don't create backup files
+vim.opt.writebackup = false                        -- Don't create backup before writing
+vim.opt.swapfile = false                           -- Don't create swap files
+vim.opt.undofile = true                            -- Persistent undo
+vim.opt.undodir = vim.fn.expand("~/.vim/undodir")  -- Undo directory
+vim.opt.updatetime = 300                           -- Faster completion
+vim.opt.timeoutlen = 500                           -- Key timeout duration
+vim.opt.ttimeoutlen = 0                            -- Key code timeout
+vim.opt.autoread = true                            -- Auto reload files changed outside vim
+vim.opt.autowrite = false                          -- Don't auto save
+
+-- Behavior settings
+vim.opt.hidden = true                              -- Allow hidden buffers
+vim.opt.errorbells = false                         -- No error bells
+vim.opt.backspace = "indent,eol,start"             -- Better backspace behavior
+vim.opt.autochdir = false                          -- Don't auto change directory
+vim.opt.iskeyword:append("-")                      -- Treat dash as part of word
+vim.opt.path:append("**")                          -- include subdirectories in search
+vim.opt.selection = "exclusive"                    -- Selection behavior
+vim.opt.mouse = "a"                                -- Enable mouse support
+vim.opt.clipboard:append("unnamedplus")            -- Use system clipboard
+vim.opt.modifiable = true                          -- Allow buffer modifications
+vim.opt.encoding = "UTF-8"                         -- Set encoding
+
+-- Cursor settings
+vim.opt.guicursor = "n-v-c:block,i-ci-ve:block,r-cr:hor20,o:hor50,
+a:blinkwait700-blinkoff400-blinkon250-Cursor/lCursor,
+sm:block-blinkwait175-blinkoff150-blinkon175"
+
+-- Folding settings
+vim.opt.foldmethod = "expr"                             -- Use expression for folding
+vim.wo.vim.foldexpr = "v:lua.vim.treesitter.foldexpr()" -- Use treesitter for folding
+vim.opt.foldlevel = 99                                  -- Start with all folds open
+
+-- Split behavior
+vim.opt.splitbelow = true                          -- Horizontal splits go below
+vim.opt.splitright = true                          -- Vertical splits go right
+
+-- Key mappings
+vim.g.mapleader = " "                              -- Set leader key to space
+vim.g.maplocalleader = " "                         -- Set local leader key (NEW)
+
+-- Normal mode mappings
+vim.keymap.set("n", "<leader>c", ":nohlsearch<CR>", { desc = "Clear search highlights" })
+
+-- Center screen when jumping
+vim.keymap.set("n", "n", "nzzzv", { desc = "Next search result (centered)" })
+vim.keymap.set("n", "N", "Nzzzv", { desc = "Previous search result (centered)" })
+vim.keymap.set("n", "<C-d>", "<C-d>zz", { desc = "Half page down (centered)" })
+vim.keymap.set("n", "<C-u>", "<C-u>zz", { desc = "Half page up (centered)" })
+
+-- Delete without yanking
+vim.keymap.set({ "n", "v" }, "<leader>d", '"_d', { desc = "Delete without yanking" })
+
+-- Buffer navigation
+vim.keymap.set("n", "<leader>bn", ":bnext<CR>", { desc = "Next buffer" })
+vim.keymap.set("n", "<leader>bp", ":bprevious<CR>", { desc = "Previous buffer" })
+
+-- Better window navigation
+vim.keymap.set("n", "<C-h>", "<C-w>h", { desc = "Move to left window" })
+vim.keymap.set("n", "<C-j>", "<C-w>j", { desc = "Move to bottom window" })
+vim.keymap.set("n", "<C-k>", "<C-w>k", { desc = "Move to top window" })
+vim.keymap.set("n", "<C-l>", "<C-w>l", { desc = "Move to right window" })
+
+-- Splitting & Resizing
+vim.keymap.set("n", "<leader>sv", ":vsplit<CR>", { desc = "Split window vertically" })
+vim.keymap.set("n", "<leader>sh", ":split<CR>", { desc = "Split window horizontally" })
+vim.keymap.set("n", "<C-Up>", ":resize +2<CR>", { desc = "Increase window height" })
+vim.keymap.set("n", "<C-Down>", ":resize -2<CR>", { desc = "Decrease window height" })
+vim.keymap.set("n", "<C-Left>", ":vertical resize -2<CR>", { desc = "Decrease window width" })
+vim.keymap.set("n", "<C-Right>", ":vertical resize +2<CR>", { desc = "Increase window width" })
+
+-- Move lines up/down
+vim.keymap.set("n", "<A-j>", ":m .+1<CR>==", { desc = "Move line down" })
+vim.keymap.set("n", "<A-k>", ":m .-2<CR>==", { desc = "Move line up" })
+vim.keymap.set("v", "<A-j>", ":m '>+1<CR>gv=gv", { desc = "Move selection down" })
+vim.keymap.set("v", "<A-k>", ":m '<-2<CR>gv=gv", { desc = "Move selection up" })
+
+-- Better indenting in visual mode
+vim.keymap.set("v", "<", "<gv", { desc = "Indent left and reselect" })
+vim.keymap.set("v", ">", ">gv", { desc = "Indent right and reselect" })
+
+-- Quick file navigation
+vim.keymap.set("n", "<leader>e", ":Explore<CR>", { desc = "Open file explorer" })
+vim.keymap.set("n", "<leader>ff", ":find ", { desc = "Find file" })
+
+-- Better J behavior
+vim.keymap.set("n", "J", "mzJ`z", { desc = "Join lines and keep cursor position" })
+
+-- Quick config editing
+vim.keymap.set("n", "<leader>rc", ":e ~/.config/nvim/init.lua<CR>", { desc = "Edit config" })
+
+-- ============================================================================
+-- USEFUL FUNCTIONS
+-- ============================================================================
+
+-- Copy Full File-Path
+vim.keymap.set("n", "<leader>pa", function()
+	local path = vim.fn.expand("%:p")
+	vim.fn.setreg("+", path)
+	print("file:", path)
+end)
+
+-- Basic autocommands
+local augroup = vim.api.nvim_create_augroup("UserConfig", {})
+
+-- Highlight yanked text
+vim.api.nvim_create_autocmd("TextYankPost", {
+  group = augroup,
+  callback = function()
+    vim.highlight.on_yank()
+  end,
+})
+
+-- Return to last edit position when opening files
+vim.api.nvim_create_autocmd("BufReadPost", {
+  group = augroup,
+  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,
+})
+
+-- Set filetype-specific settings
+vim.api.nvim_create_autocmd("FileType", {
+  group = augroup,
+  pattern = { "lua", "python" },
+  callback = function()
+    vim.opt_local.tabstop = 4
+    vim.opt_local.shiftwidth = 4
+  end,
+})
+
+vim.api.nvim_create_autocmd("FileType", {
+  group = augroup,
+  pattern = { "javascript", "typescript", "json", "html", "css" },
+  callback = function()
+    vim.opt_local.tabstop = 2
+    vim.opt_local.shiftwidth = 2
+  end,
+})
+
+-- Auto-close terminal when process exits
+vim.api.nvim_create_autocmd("TermClose", {
+  group = augroup,
+  callback = function()
+    if vim.v.event.status == 0 then
+      vim.api.nvim_buf_delete(0, {})
+    end
+  end,
+})
+
+-- Disable line numbers in terminal
+vim.api.nvim_create_autocmd("TermOpen", {
+  group = augroup,
+  callback = function()
+    vim.opt_local.number = false
+    vim.opt_local.relativenumber = false
+    vim.opt_local.signcolumn = "no"
+  end,
+})
+
+-- Auto-resize splits when window is resized
+vim.api.nvim_create_autocmd("VimResized", {
+  group = augroup,
+  callback = function()
+    vim.cmd("tabdo wincmd =")
+  end,
+})
+
+-- Create directories when saving files
+vim.api.nvim_create_autocmd("BufWritePre", {
+  group = augroup,
+  callback = function()
+    local dir = vim.fn.expand('<afile>:p:h')
+    if vim.fn.isdirectory(dir) == 0 then
+      vim.fn.mkdir(dir, 'p')
+    end
+  end,
+})
+
+-- Command-line completion
+vim.opt.wildmenu = true
+vim.opt.wildmode = "longest:full,full"
+vim.opt.wildignore:append({ "*.o", "*.obj", "*.pyc", "*.class", "*.jar" })
+
+-- Better diff options
+vim.opt.diffopt:append("linematch:60")
+
+-- Performance improvements
+vim.opt.redrawtime = 10000
+vim.opt.maxmempattern = 20000
+
+-- Create undo directory if it doesn't exist
+local undodir = vim.fn.expand("~/.vim/undodir")
+if vim.fn.isdirectory(undodir) == 0 then
+  vim.fn.mkdir(undodir, "p")
+end
+
+-- ============================================================================
+-- FLOATING TERMINAL
+-- ============================================================================
+
+-- terminal
+local terminal_state = {
+  buf = nil,
+  win = nil,
+  is_open = false
+}
+
+local function FloatingTerminal()
+  -- If terminal is already open, close it (toggle behavior)
+  if terminal_state.is_open and vim.api.nvim_win_is_valid(terminal_state.win) then
+    vim.api.nvim_win_close(terminal_state.win, false)
+    terminal_state.is_open = false
+    return
+  end
+
+  -- Create buffer if it doesn't exist or is invalid
+  if not terminal_state.buf or not vim.api.nvim_buf_is_valid(terminal_state.buf) then
+    terminal_state.buf = vim.api.nvim_create_buf(false, true)
+    -- Set buffer options for better terminal experience
+    vim.api.nvim_buf_set_option(terminal_state.buf, 'bufhidden', 'hide')
+  end
+
+  -- Calculate window dimensions
+  local width = math.floor(vim.o.columns * 0.8)
+  local height = math.floor(vim.o.lines * 0.8)
+  local row = math.floor((vim.o.lines - height) / 2)
+  local col = math.floor((vim.o.columns - width) / 2)
+
+  -- Create the floating window
+  terminal_state.win = vim.api.nvim_open_win(terminal_state.buf, true, {
+    relative = 'editor',
+    width = width,
+    height = height,
+    row = row,
+    col = col,
+    style = 'minimal',
+    border = 'rounded',
+  })
+
+  -- Set transparency for the floating window
+  vim.api.nvim_win_set_option(terminal_state.win, 'winblend', 0)
+
+  -- Set transparent background for the window
+  vim.api.nvim_win_set_option(terminal_state.win, 'winhighlight',
+    'Normal:FloatingTermNormal,FloatBorder:FloatingTermBorder')
+
+  -- Define highlight groups for transparency
+  vim.api.nvim_set_hl(0, "FloatingTermNormal", { bg = "none" })
+  vim.api.nvim_set_hl(0, "FloatingTermBorder", { bg = "none", })
+
+  -- Start terminal if not already running
+  local has_terminal = false
+  local lines = vim.api.nvim_buf_get_lines(terminal_state.buf, 0, -1, false)
+  for _, line in ipairs(lines) do
+    if line ~= "" then
+      has_terminal = true
+      break
+    end
+  end
+
+  if not has_terminal then
+    vim.fn.termopen(os.getenv("SHELL"))
+  end
+
+  terminal_state.is_open = true
+  vim.cmd("startinsert")
+
+  -- Set up auto-close on buffer leave 
+  vim.api.nvim_create_autocmd("BufLeave", {
+    buffer = terminal_state.buf,
+    callback = function()
+      if terminal_state.is_open and vim.api.nvim_win_is_valid(terminal_state.win) then
+        vim.api.nvim_win_close(terminal_state.win, false)
+        terminal_state.is_open = false
+      end
+    end,
+    once = true
+  })
+end
+
+-- Function to explicitly close the terminal
+local function CloseFloatingTerminal()
+  if terminal_state.is_open and vim.api.nvim_win_is_valid(terminal_state.win) then
+    vim.api.nvim_win_close(terminal_state.win, false)
+    terminal_state.is_open = false
+  end
+end
+
+-- Key mappings
+vim.keymap.set("n", "<leader>t", FloatingTerminal, { noremap = true, silent = true, desc = "Toggle floating terminal" })
+vim.keymap.set("t", "<Esc>", function()
+  if terminal_state.is_open then
+    vim.api.nvim_win_close(terminal_state.win, false)
+    terminal_state.is_open = false
+  end
+end, { noremap = true, silent = true, desc = "Close floating terminal from terminal mode" })
+
+
+-- ============================================================================
+-- TABS
+-- ============================================================================
+
+-- Tab display settings
+vim.opt.showtabline = 1  -- Always show tabline (0=never, 1=when multiple tabs, 2=always)
+vim.opt.tabline = ''     -- Use default tabline (empty string uses built-in)
+
+-- Transparent tabline appearance
+vim.cmd([[
+  hi TabLineFill guibg=NONE ctermfg=242 ctermbg=NONE
+]])
+
+-- Alternative navigation (more intuitive)
+vim.keymap.set('n', '<leader>tn', ':tabnew<CR>', { desc = 'New tab' })
+vim.keymap.set('n', '<leader>tx', ':tabclose<CR>', { desc = 'Close tab' })
+
+-- Tab moving
+vim.keymap.set('n', '<leader>tm', ':tabmove<CR>', { desc = 'Move tab' })
+vim.keymap.set('n', '<leader>t>', ':tabmove +1<CR>', { desc = 'Move tab right' })
+vim.keymap.set('n', '<leader>t<', ':tabmove -1<CR>', { desc = 'Move tab left' })
+
+-- Function to open file in new tab
+local function open_file_in_tab()
+  vim.ui.input({ prompt = 'File to open in new tab: ', completion = 'file' }, function(input)
+    if input and input ~= '' then
+      vim.cmd('tabnew ' .. input)
+    end
+  end)
+end
+
+-- Function to duplicate current tab
+local function duplicate_tab()
+  local current_file = vim.fn.expand('%:p')
+  if current_file ~= '' then
+    vim.cmd('tabnew ' .. current_file)
+  else
+    vim.cmd('tabnew')
+  end
+end
+
+-- Function to close tabs to the right
+local function close_tabs_right()
+  local current_tab = vim.fn.tabpagenr()
+  local last_tab = vim.fn.tabpagenr('$')
+
+  for i = last_tab, current_tab + 1, -1 do
+    vim.cmd(i .. 'tabclose')
+  end
+end
+
+-- Function to close tabs to the left
+local function close_tabs_left()
+  local current_tab = vim.fn.tabpagenr()
+
+  for i = current_tab - 1, 1, -1 do
+    vim.cmd('1tabclose')
+  end
+end
+
+-- Enhanced keybindings
+vim.keymap.set('n', '<leader>tO', open_file_in_tab, { desc = 'Open file in new tab' })
+vim.keymap.set('n', '<leader>td', duplicate_tab, { desc = 'Duplicate current tab' })
+vim.keymap.set('n', '<leader>tr', close_tabs_right, { desc = 'Close tabs to the right' })
+vim.keymap.set('n', '<leader>tL', close_tabs_left, { desc = 'Close tabs to the left' })
+
+-- Function to close buffer but keep tab if it's the only buffer in tab
+local function smart_close_buffer()
+  local buffers_in_tab = #vim.fn.tabpagebuflist()
+  if buffers_in_tab > 1 then
+    vim.cmd('bdelete')
+  else
+    -- If it's the only buffer in tab, close the tab
+    vim.cmd('tabclose')
+  end
+end
+vim.keymap.set('n', '<leader>bd', smart_close_buffer, { desc = 'Smart close buffer/tab' })
+
+-- ============================================================================
+-- STATUSLINE
+-- ============================================================================
+
+-- Git branch function
+local function git_branch()
+  local branch = vim.fn.system("git branch --show-current 2>/dev/null | tr -d '\n'")
+  if branch ~= "" then
+    return "  " .. branch .. " "
+  end
+  return ""
+end
+
+-- File type with icon
+local function file_type()
+  local ft = vim.bo.filetype
+  local icons = {
+    lua = "[LUA]",
+    python = "[PY]",
+    javascript = "[JS]",
+    html = "[HTML]",
+    css = "[CSS]",
+    json = "[JSON]",
+    markdown = "[MD]",
+    vim = "[VIM]",
+    sh = "[SH]",
+  }
+
+  if ft == "" then
+    return "  "
+  end
+
+  return (icons[ft] or ft)
+end
+
+-- LSP status
+local function lsp_status()
+  local clients = vim.lsp.get_clients({ bufnr = 0 })
+  if #clients > 0 then
+    return "  LSP "
+  end
+  return ""
+end
+
+-- Word count for text files
+local function word_count()
+  local ft = vim.bo.filetype
+  if ft == "markdown" or ft == "text" or ft == "tex" then
+    local words = vim.fn.wordcount().words
+    return "  " .. words .. " words "
+  end
+  return ""
+end
+
+-- File size
+local function file_size()
+  local size = vim.fn.getfsize(vim.fn.expand('%'))
+  if size < 0 then return "" end
+  if size < 1024 then
+    return size .. "B "
+  elseif size < 1024 * 1024 then
+    return string.format("%.1fK", size / 1024)
+  else
+    return string.format("%.1fM", size / 1024 / 1024)
+  end
+end
+
+-- Mode indicators with icons
+local function mode_icon()
+  local mode = vim.fn.mode()
+  local modes = {
+    n = "NORMAL",
+    i = "INSERT",
+    v = "VISUAL",
+    V = "V-LINE",
+    ["\22"] = "V-BLOCK",  -- Ctrl-V
+    c = "COMMAND",
+    s = "SELECT",
+    S = "S-LINE",
+    ["\19"] = "S-BLOCK",  -- Ctrl-S
+    R = "REPLACE",
+    r = "REPLACE",
+    ["!"] = "SHELL",
+    t = "TERMINAL"
+  }
+  return modes[mode] or "  " .. mode:upper()
+end
+
+_G.mode_icon = mode_icon
+_G.git_branch = git_branch
+_G.file_type = file_type
+_G.file_size = file_size
+_G.lsp_status = lsp_status
+
+vim.cmd([[
+  highlight StatusLineBold gui=bold cterm=bold
+]])
+
+-- Function to change statusline based on window focus
+local function setup_dynamic_statusline()
+  vim.api.nvim_create_autocmd({"WinEnter", "BufEnter"}, {
+    callback = function()
+    vim.opt_local.statusline = table.concat {
+      "  ",
+      "%#StatusLineBold#",
+      "%{v:lua.mode_icon()}",
+      "%#StatusLine#",
+      " │ %f %h%m%r",
+      "%{v:lua.git_branch()}",
+      " │ ",
+      "%{v:lua.file_type()}",
+      " | ",
+      "%{v:lua.file_size()}",
+      " | ",
+      "%{v:lua.lsp_status()}",
+      "%=",                     -- Right-align everything after this
+      "%l:%c  %P ",             -- Line:Column and Percentage
+    }
+    end
+  })
+  vim.api.nvim_set_hl(0, "StatusLineBold", { bold = true })
+
+  vim.api.nvim_create_autocmd({"WinLeave", "BufLeave"}, {
+    callback = function()
+      vim.opt_local.statusline = "  %f %h%m%r │ %{v:lua.file_type()} | %=  %l:%c   %P "
+    end
+  })
+end
+
+setup_dynamic_statusline()
+
+-- ============================================================================
+-- LSP 
+-- ============================================================================
+
+-- Function to find project root
+local function find_root(patterns)
+  local path = vim.fn.expand('%:p:h')
+  local root = vim.fs.find(patterns, { path = path, upward = true })[1]
+  return root and vim.fn.fnamemodify(root, ':h') or path
+end
+
+-- Shell LSP setup
+local function setup_shell_lsp()
+  vim.lsp.start({
+    name = 'bashls',
+    cmd = {'bash-language-server', 'start'},
+    filetypes = {'sh', 'bash', 'zsh'},
+    root_dir = find_root({'.git', 'Makefile'}),
+    settings = {
+      bashIde = {
+        globPattern = "*@(.sh|.inc|.bash|.command)"
+      }
+    }
+  })
+end
+
+-- Python LSP setup
+local function setup_python_lsp()
+  vim.lsp.start({
+    name = 'pylsp',
+    cmd = {'pylsp'},
+    filetypes = {'python'},
+    root_dir = find_root({'pyproject.toml', 'setup.py', 'setup.cfg', 'requirements.txt', '.git'}),
+    settings = {
+      pylsp = {
+        plugins = { 
+          pycodestyle = {
+              enabled = false
+          },
+          flake8 = {
+              enabled = true,
+          },
+          black = { 
+              enabled = true
+          }
+        }
+      }
+    }
+  })
+end
+
+-- Auto-start LSPs based on filetype
+vim.api.nvim_create_autocmd('FileType', {
+  pattern = 'sh,bash,zsh',
+  callback = setup_shell_lsp,
+  desc = 'Start shell LSP'
+})
+
+vim.api.nvim_create_autocmd('FileType', {
+  pattern = 'python',
+  callback = setup_python_lsp,
+  desc = 'Start Python LSP'
+})
+
+-- formatting
+local function format_code()
+  local bufnr = vim.api.nvim_get_current_buf()
+  local filename = vim.api.nvim_buf_get_name(bufnr)
+  local filetype = vim.bo[bufnr].filetype
+  
+  -- Save cursor position
+  local cursor_pos = vim.api.nvim_win_get_cursor(0)
+  
+  if filetype == 'python' or filename:match('%.py$') then
+    if filename == '' then
+      print("Save the file first before formatting Python")
+      return
+    end
+    
+    local black_cmd = "black --quiet " .. vim.fn.shellescape(filename)
+    local black_result = vim.fn.system(black_cmd)
+    
+    if vim.v.shell_error == 0 then
+      vim.cmd('checktime')
+      vim.api.nvim_win_set_cursor(0, cursor_pos)
+      print("Formatted with black")
+      return
+    else
+      print("No Python formatter available (install black)")
+      return
+    end
+  end
+  
+  if filetype == 'sh' or filetype == 'bash' or filename:match('%.sh$') then
+    local lines = vim.api.nvim_buf_get_lines(bufnr, 0, -1, false)
+    local content = table.concat(lines, '\n')
+    
+    local cmd = {'shfmt', '-i', '2', '-ci', '-sr'}  -- 2 spaces, case indent, space redirects
+    local result = vim.fn.system(cmd, content)
+    
+    if vim.v.shell_error == 0 then
+      local formatted_lines = vim.split(result, '\n')
+      if formatted_lines[#formatted_lines] == '' then
+        table.remove(formatted_lines)
+      end
+      vim.api.nvim_buf_set_lines(bufnr, 0, -1, false, formatted_lines)
+      vim.api.nvim_win_set_cursor(0, cursor_pos)
+      print("Shell script formatted with shfmt")
+      return
+    else
+      print("shfmt error: " .. result)
+      return
+    end
+  end
+  
+  print("No formatter available for " .. filetype)
+end
+
+vim.api.nvim_create_user_command("FormatCode", format_code, {
+  desc = "Format current file"
+})
+
+vim.keymap.set('n', '<leader>fm', format_code, { desc = 'Format file' })
+
+-- LSP keymaps 
+vim.api.nvim_create_autocmd('LspAttach', {
+  callback = function(event)
+    local opts = {buffer = event.buf}
+
+    -- Navigation
+    vim.keymap.set('n', 'gD', vim.lsp.buf.definition, opts)
+    vim.keymap.set('n', 'gs', vim.lsp.buf.declaration, opts)
+    vim.keymap.set('n', 'gr', vim.lsp.buf.references, opts)
+    vim.keymap.set('n', 'gi', vim.lsp.buf.implementation, opts)
+
+    -- Information
+    vim.keymap.set('n', 'K', vim.lsp.buf.hover, opts)
+    vim.keymap.set('n', '<C-k>', vim.lsp.buf.signature_help, opts)
+
+    -- Code actions
+    vim.keymap.set('n', '<leader>ca', vim.lsp.buf.code_action, opts)
+    vim.keymap.set('n', '<leader>rn', vim.lsp.buf.rename, opts)
+
+    -- Diagnostics
+    vim.keymap.set('n', '<leader>nd', vim.diagnostic.goto_next, opts)
+    vim.keymap.set('n', '<leader>pd', vim.diagnostic.goto_prev, opts)
+    vim.keymap.set('n', '<leader>d', vim.diagnostic.open_float, opts)
+    vim.keymap.set('n', '<leader>q', vim.diagnostic.setloclist, opts)
+  end,
+})
+
+-- Better LSP UI
+vim.diagnostic.config({
+  virtual_text = { prefix = '●' },
+  signs = true,
+  underline = true,
+  update_in_insert = false,
+  severity_sort = true,
+})
+
+vim.diagnostic.config({
+  signs = {
+    text = {
+      [vim.diagnostic.severity.ERROR] = "✗",
+      [vim.diagnostic.severity.WARN] = "⚠",
+      [vim.diagnostic.severity.INFO] = "ℹ",
+      [vim.diagnostic.severity.HINT] = "💡",
+    }
+  }
+})
+
+vim.api.nvim_create_user_command('LspInfo', function()
+  local clients = vim.lsp.get_clients({ bufnr = 0 })
+  if #clients == 0 then
+    print("No LSP clients attached to current buffer")
+  else
+    for _, client in ipairs(clients) do
+      print("LSP: " .. client.name .. " (ID: " .. client.id .. ")")
+    end
+  end
+end, { desc = 'Show LSP client info' })
+