vim.opt.number = true
vim.opt.relativenumber = true
vim.opt.cursorline = true
vim.opt.wrap = false
vim.opt.scrolloff = 10
vim.opt.sidescrolloff = 8

vim.opt.tabstop = 4
vim.opt.shiftwidth = 4
vim.opt.softtabstop = 4
vim.opt.expandtab = true
vim.opt.smartindent = true
vim.opt.autoindent = true

vim.opt.ignorecase = true
vim.opt.smartcase = true
vim.opt.hlsearch = false
vim.opt.incsearch = true

vim.opt.termguicolors = true
vim.opt.signcolumn = "yes"
vim.opt.colorcolumn = "120"
vim.opt.showmatch = false
--- vim.opt.matchtime = 2
vim.opt.conceallevel = 0
vim.opt.concealcursor = ""
vim.opt.synmaxcol = 1000
vim.opt.isfname:append("@-@")

vim.opt.backup = false
vim.opt.writebackup = false
vim.opt.swapfile = false
vim.opt.undofile = true
vim.opt.undodir = vim.fn.expand("~/.cache/vim/undodir")
vim.opt.updatetime = 100
vim.opt.timeoutlen = 500
vim.opt.ttimeoutlen = 0
vim.opt.autoread = true
vim.opt.autowrite = false

vim.opt.hidden = true
--- vim.opt.errorbells = false
vim.opt.backspace = "indent,eol,start"
vim.opt.autochdir = false
vim.opt.path:append("**")
vim.opt.selection = "exclusive"
vim.opt.mouse = "a"
vim.opt.modifiable = true
vim.opt.encoding = "UTF-8"

-- Split behavior
vim.opt.splitbelow = true
vim.opt.splitright = true

vim.g.mapleader = " "
vim.g.maplocalleader = vim.api.nvim_replace_termcodes("<BS>", false, false, true)

vim.o.exrc = true
vim.o.showtabline = 2

vim.cmd("set title")
vim.cmd("set ic")

-- Delete without yanking
vim.keymap.set({ "n", "v" }, "<localleader>d", '"_d', { desc = "Delete without yanking" })
vim.keymap.set({ "n", "v" }, "<C-c>", '"+y', { desc = "Copy to clipboard" })
vim.keymap.set("x", "<localleader>p", '"_dP', { desc = "Replace without yanking" })

-- Wayland clipboard mappings
vim.keymap.set({ "n", "v" }, "<leader>y", '"+y', { desc = "Yank to system clipboard" })
vim.keymap.set("n", "<leader>Y", '"+Y', { desc = "Yank line to system clipboard" })
vim.keymap.set({ "n", "v" }, "<leader>p", '"+p', { desc = "Paste from system clipboard" })
vim.keymap.set({ "n", "v" }, "<leader>P", '"+P', { desc = "Paste from system clipboard before cursor" })

-- Better J behavior
vim.keymap.set("n", "J", "mzJ`z", { desc = "Join lines and keep cursor position" })

--- center 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)" })

--- window navigation
vim.keymap.set("n", "<C-w>Left", "<C-w>h", { desc = "Move to left window" })
vim.keymap.set("n", "<C-w>Right", "<C-w>l", { desc = "Move to right window" })
vim.keymap.set("n", "<C-w>Top", "<C-w>k", { desc = "Move to top window" })
vim.keymap.set("n", "<C-w>Down", "<C-w>j", { desc = "Move to bottom window" })

vim.keymap.set("t", "<S-Esc>", "<C-\\><C-n>", { desc = "Exit terminal mode" })

vim.keymap.set("n", "<leader>tn", "<cmd>$tabnew<cr>", { desc = "create tab" })
vim.keymap.set("n", "<leader>n", function()
	vim.cmd("tabnext 1")
end, { desc = "Go to tab 1" })
vim.keymap.set("n", "<leader>e", function()
	vim.cmd("tabnext 2")
end, { desc = "Go to tab 2" })
vim.keymap.set("n", "<leader>i", function()
	vim.cmd("tabnext 3")
end, { desc = "Go to tab 3" })
vim.keymap.set("n", "<leader>a", function()
	vim.cmd("tabnext 4")
end, { desc = "Go to tab 4" })
vim.keymap.set({ "n", "t" }, "<C-H>", function()
	vim.cmd("tabnext #")
end, { desc = "Go to previous tab" })
vim.keymap.set({ "n", "t" }, "<C-Space>", "<C-w>p", { desc = "Go to previous pane" })

vim.keymap.set("n", "<localleader>v", "<cmd>vsplit<cr>", { desc = "split (vertical line)" })
vim.keymap.set("n", "<leader>h", "<cmd>split<cr>", { desc = "split (horizontal line)" })

vim.keymap.set("n", "<localleader><localleader>", "<cmd>w<cr>", { desc = "save buffer" })

vim.diagnostic.config({
	virtual_text = false,
	virtual_lines = true,
	signs = true,
	underline = true,
	update_in_insert = false,
	severity_sort = true,
})

-- 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,
})

--- command line completion
vim.opt.wildmenu = true
vim.opt.wildmode = "longest:full,full"
vim.opt.wildignore:append({ "*.o", "*.obj", "*.pyc", "*.class", "*.jar", "*.lock" })