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.o.exrc = true

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

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

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

--- indenting in visual mode
-- vim.keymap.set("v", "<", "<gv", { desc = "Indent left and reselect" })
-- vim.keymap.set("v", ">", ">gv", { desc = "Indent right and reselect" })

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,
})

--- 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 syntax highlighting for large files
vim.api.nvim_create_autocmd("BufReadPre", {
	pattern = "*",
	callback = function()
		local size = vim.fn.getfsize(vim.fn.expand("<afile>"))
		if size > 1024 * 1024 then -- 1MB threshold
			vim.cmd("syntax off")
			vim.opt_local.wrap = false
			vim.opt_local.number = false
			vim.opt_local.relativenumber = false
		end
	end,
})
--- create directory 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 and dir ~= "oil:" 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" })