init.lua

require("config.lazy")

-- Use vim.schedule to defer non-critical operations for faster startup
vim.schedule(function()
    -- System clipboard integration with error handling
    local has_clipboard = vim.fn.has('clipboard')
    if has_clipboard == 1 then
        vim.o.clipboard = 'unnamedplus'
    else
        vim.notify("System clipboard not available", vim.log.levels.WARN)
    end
    
    -- Additional startup optimizations
    vim.o.updatetime = 250  -- Faster completion and diagnostic updates
    vim.o.timeoutlen = 300  -- Shorter timeout for key sequences
end)

-- Global error handler for better debugging
vim.api.nvim_create_autocmd("VimEnter", {
    callback = function()
        -- Check for common issues and provide helpful messages
        if vim.fn.executable('git') == 0 then
            vim.notify("Git not found - some plugins may not work correctly", vim.log.levels.WARN)
        end
    end,
})

-- ============================================================================
-- NEOVIM KEYMAPS CONFIGURATION
-- ============================================================================

-- Helper function for mapping
local function map(mode, lhs, rhs, opts)
  local options = { noremap = true, silent = true }
  if opts then
    options = vim.tbl_extend("force", options, opts)
  end
  vim.keymap.set(mode, lhs, rhs, options)
end

-- ============================================================================
-- GENERAL EDITING
-- ============================================================================

-- Highlight yank
vim.api.nvim_create_autocmd("TextYankPost", {
    desc = "Highlight when yanking text",
    group = vim.api.nvim_create_augroup("kickstart-highlight-yank", { clear = true }),
    callback = function ()
       vim.highlight.on_yank() 
    end
})

-- Better escape sequences
map("i", "jk", "<ESC>", { desc = "Exit insert mode with jk" })
map("i", "kj", "<ESC>", { desc = "Exit insert mode with kj" })

-- Save and quit shortcuts
map("n", "<leader>w", "<cmd>w<cr>", { desc = "Save file" })
map("n", "<leader>W", "<cmd>wa<cr>", { desc = "Save all files" })
map("n", "<leader>q", "<cmd>q<cr>", { desc = "Quit" })
map("n", "<leader>Q", "<cmd>qa<cr>", { desc = "Quit all" })
map("n", "<leader>x", "<cmd>x<cr>", { desc = "Save and quit" })

-- Better indenting (keeps selection)
map("v", "<", "<gv", { desc = "Indent left and reselect" })
map("v", ">", ">gv", { desc = "Indent right and reselect" })

-- Move selected lines up/down
map("v", "J", ":m '>+1<CR>gv=gv", { desc = "Move selection down" })
map("v", "K", ":m '<-2<CR>gv=gv", { desc = "Move selection up" })

-- Better line joining (keeps cursor position)
map("n", "J", "mzJ`z", { desc = "Join lines without moving cursor" })

-- Center cursor after jumping
map("n", "<C-d>", "<C-d>zz", { desc = "Half page down and center" })
map("n", "<C-u>", "<C-u>zz", { desc = "Half page up and center" })
map("n", "n", "nzzzv", { desc = "Next search result and center" })
map("n", "N", "Nzzzv", { desc = "Previous search result and center" })

-- Better paste (doesn't replace clipboard in visual mode)
-- map("x", "<leader>p", '"_dP', { desc = "Paste without replacing clipboard" })

-- Delete to void register
map("n", "<leader>d", '"_d', { desc = "Delete to void register" })
map("v", "<leader>d", '"_d', { desc = "Delete to void register" })

-- ============================================================================
-- NAVIGATION
-- ============================================================================

-- Window navigation
map("n", "<C-h>", "<C-w>h", { desc = "Move to left window" })
map("n", "<C-j>", "<C-w>j", { desc = "Move to bottom window" })
map("n", "<C-k>", "<C-w>k", { desc = "Move to top window" })
map("n", "<C-l>", "<C-w>l", { desc = "Move to right window" })

-- Window resizing
map("n", "<C-Up>", "<cmd>resize -2<cr>", { desc = "Decrease window height" })
map("n", "<C-Down>", "<cmd>resize +2<cr>", { desc = "Increase window height" })
map("n", "<C-Left>", "<cmd>vertical resize -2<cr>", { desc = "Decrease window width" })
map("n", "<C-Right>", "<cmd>vertical resize +2<cr>", { desc = "Increase window width" })

-- Window management
map("n", "<leader>sv", "<C-w>v", { desc = "Split window vertically" })
map("n", "<leader>sh", "<C-w>s", { desc = "Split window horizontally" })
map("n", "<leader>se", "<C-w>=", { desc = "Make windows equal size" })
map("n", "<leader>sx", "<cmd>close<cr>", { desc = "Close current window" })

-- Tab management
map("n", "<leader>to", "<cmd>tabnew<cr>", { desc = "Open new tab" })
map("n", "<leader>tx", "<cmd>tabclose<cr>", { desc = "Close current tab" })
map("n", "<leader>tn", "<cmd>tabn<cr>", { desc = "Go to next tab" })
map("n", "<leader>tp", "<cmd>tabp<cr>", { desc = "Go to previous tab" })
map("n", "<leader>tf", "<cmd>tabnew %<cr>", { desc = "Move current buffer to new tab" })

-- Better beginning/end of line
map("n", "H", "^", { desc = "Go to first non-blank character" })
map("n", "L", "$", { desc = "Go to end of line" })
map("v", "H", "^", { desc = "Go to first non-blank character" })
map("v", "L", "$", { desc = "Go to end of line" })

-- ============================================================================
-- BUFFER MANAGEMENT
-- ============================================================================

-- Buffer navigation
map("n", "<S-h>", "<cmd>bprevious<cr>", { desc = "Previous buffer" })
map("n", "<S-l>", "<cmd>bnext<cr>", { desc = "Next buffer" })
map("n", "[b", "<cmd>bprevious<cr>", { desc = "Previous buffer" })
map("n", "]b", "<cmd>bnext<cr>", { desc = "Next buffer" })

-- Buffer management
map("n", "<leader>bd", "<cmd>bdelete<cr>", { desc = "Delete buffer" })
map("n", "<leader>bD", "<cmd>bdelete!<cr>", { desc = "Force delete buffer" })
map("n", "<leader>ba", "<cmd>%bd|e#<cr>", { desc = "Delete all buffers except current" })

-- ============================================================================
-- SEARCH AND REPLACE
-- ============================================================================

-- Clear search highlighting
map("n", "<leader>hl", "<cmd>nohlsearch<cr>", { desc = "Clear search highlights" })

-- Search and replace word under cursor
map("n", "<leader>s", [[:%s/\<<C-r><C-w>\>/<C-r><C-w>/gI<Left><Left><Left>]], { desc = "Replace word under cursor" })

-- Search in visual selection
map("v", "/", "<Esc>/\\%V", { desc = "Search in visual selection" })

-- Global search and replace
map("n", "<leader>S", [[:%s//g<Left><Left>]], { desc = "Global search and replace" })

-- ============================================================================
-- FILE OPERATIONS
-- ============================================================================

-- Quick file operations
map("n", "<leader>fn", "<cmd>enew<cr>", { desc = "New file" })
map("n", "<leader>fe", "<cmd>e<cr>", { desc = "Reload file" })
map("n", "<leader>fs", "<cmd>w<cr>", { desc = "Save file" })

-- Source current file
map("n", "<leader><leader>", function()
  vim.cmd("so")
end, { desc = "Source current file" })

-- ============================================================================
-- TEXT OBJECTS AND MOTIONS
-- ============================================================================

-- Select all
map("n", "<C-a>", "ggVG", { desc = "Select all" })

-- Duplicate line/selection
map("n", "<leader>D", "yyp", { desc = "Duplicate line" })
map("v", "<leader>D", "y'>p", { desc = "Duplicate selection" })

-- Join lines with space
map("n", "<leader>j", "i<cr><esc>", { desc = "Insert line break" })

-- ============================================================================
-- QUICKFIX AND LOCATION LIST
-- ============================================================================

-- Quickfix navigation
map("n", "<leader>co", "<cmd>copen<cr>", { desc = "Open quickfix list" })
map("n", "<leader>cc", "<cmd>cclose<cr>", { desc = "Close quickfix list" })
map("n", "]q", "<cmd>cnext<cr>", { desc = "Next quickfix item" })
map("n", "[q", "<cmd>cprev<cr>", { desc = "Previous quickfix item" })

-- Location list navigation
map("n", "<leader>lo", "<cmd>lopen<cr>", { desc = "Open location list" })
map("n", "<leader>lc", "<cmd>lclose<cr>", { desc = "Close location list" })
map("n", "]l", "<cmd>lnext<cr>", { desc = "Next location item" })
map("n", "[l", "<cmd>lprev<cr>", { desc = "Previous location item" })

-- ============================================================================
-- TERMINAL
-- ============================================================================

-- Terminal toggle
map("n", "<leader>tt", "<cmd>terminal<cr>", { desc = "Open terminal" })
map("t", "<C-x>", "<C-\\><C-n>", { desc = "Exit terminal mode" })

-- Terminal navigation
map("t", "<C-h>", "<C-\\><C-n><C-w>h", { desc = "Move to left window from terminal" })
map("t", "<C-j>", "<C-\\><C-n><C-w>j", { desc = "Move to bottom window from terminal" })
map("t", "<C-k>", "<C-\\><C-n><C-w>k", { desc = "Move to top window from terminal" })
map("t", "<C-l>", "<C-\\><C-n><C-w>l", { desc = "Move to right window from terminal" })

-- ============================================================================
-- UTILITIES
-- ============================================================================

-- Toggle spell check
map("n", "<leader>sp", "<cmd>set spell!<cr>", { desc = "Toggle spell check" })

-- Increment/decrement numbers
map("n", "<leader>+", "<C-a>", { desc = "Increment number" })
map("n", "<leader>-", "<C-x>", { desc = "Decrement number" })

-- ============================================================================
-- FOLDING
-- ============================================================================

-- Folding shortcuts
map("n", "<leader>fo", "zo", { desc = "Open fold" })
map("n", "<leader>fc", "zc", { desc = "Close fold" })
map("n", "<leader>fa", "za", { desc = "Toggle fold" })
map("n", "<leader>fO", "zR", { desc = "Open all folds" })
map("n", "<leader>fC", "zM", { desc = "Close all folds" })

-- ============================================================================
-- COMMAND MODE
-- ============================================================================

-- Command mode navigation
map("c", "<C-h>", "<Left>", { desc = "Move left in command mode" })
map("c", "<C-l>", "<Right>", { desc = "Move right in command mode" })
map("c", "<C-a>", "<Home>", { desc = "Move to beginning of command" })
map("c", "<C-e>", "<End>", { desc = "Move to end of command" })


-- Prevent accidental recording
map("n", "q", "<Nop>", { desc = "Disabled macro recording" })
map("n", "<leader>q", "q", { desc = "Macro recording" })

-- Better undo break points
map("i", ",", ",<C-g>u", { desc = "Undo break point" })
map("i", ".", ".<C-g>u", { desc = "Undo break point" })
map("i", "!", "!<C-g>u", { desc = "Undo break point" })
map("i", "?", "?<C-g>u", { desc = "Undo break point" })

-- Keep cursor centered during search
map("n", "*", "*zzzv", { desc = "Search word under cursor and center" })
map("n", "#", "#zzzv", { desc = "Search word under cursor backwards and center" })


print("Keymaps loaded successfully!")