-- The next part (until `-- stylua: ignore end`) is aligned manually for easier
-- reading. Consider preserving this or remove `-- stylua` lines to autoformat.
-- General ====================================================================
vim.g.mapleader = " " -- Use `<Space>` as <Leader> key

vim.o.clipboard = "unnamedplus" -- Use system clipboard
vim.o.mouse = "a" -- Enable mouse
vim.o.switchbuf = "usetab" -- Use already opened buffers when switching
vim.o.undofile = true -- Enable persistent undo

vim.o.shada = "'100,<50,s10,:1000,/100,@100,h" -- Limit ShaDa file (for startup)

-- Enable all filetype plugins and syntax (if not enabled, for better startup)
vim.cmd("filetype plugin indent on")
if vim.fn.exists("syntax_on") ~= 1 then vim.cmd("syntax enable") end

-- UI =========================================================================
vim.o.breakindent = true -- Indent wrapped lines to match line start
vim.o.breakindentopt = "list:-1" -- Add padding for lists (if "wrap" is set)
vim.o.colorcolumn = "+1" -- Draw column on the right of maximum width
vim.o.cursorline = true -- Enable current line highlighting
vim.o.linebreak = true -- Wrap lines at "breakat" (if "wrap" is set)
vim.o.list = true -- Show helpful text indicators
vim.o.number = true -- Show line numbers
vim.o.pumheight = 10 -- Make popup menu smaller
vim.o.ruler = false -- Don"t show cursor coordinates
vim.o.shortmess = "CFOSWaco" -- Disable some built-in completion messages
vim.o.showmode = false -- Don"t show mode in command line
vim.o.signcolumn = "yes" -- Always show signcolumn (less flicker)
vim.o.splitbelow = true -- Horizontal splits will be below
vim.o.splitkeep = "screen" -- Reduce scroll during window split
vim.o.splitright = true -- Vertical splits will be to the right
vim.o.termguicolors = true -- Use terminal gui colors
vim.o.winborder = "single" -- Use border in floating windows
vim.o.wrap = false -- Don"t visually wrap lines (toggle with \w)

vim.o.cursorlineopt = "screenline,number" -- Show cursor line per screen line

-- Special UI symbols. More is set via "mini.basics" later.
vim.o.list = true
-- NOTE: use vim.opt with tables until neovim/neovim#20107 is implemented
vim.opt.fillchars = { eob = " ", fold = " ", foldopen = "", foldsep = " ", foldclose = "" }
vim.opt.listchars = { tab = "» ", trail = "·", nbsp = "␣" }

-- Folds (see `:h fold-commands`, `:h zM`, `:h zR`, `:h zA`, `:h zj`)
vim.o.foldlevel = 10 -- Fold nothing by default; set to 0 or 1 to fold
vim.o.foldmethod = "indent" -- Fold based on indent level
vim.o.foldnestmax = 10 -- Limit number of fold levels
vim.o.foldtext = "" -- Show text under fold with its highlighting

-- Editing ====================================================================
vim.o.autoindent = true -- Use auto indent
vim.o.expandtab = true -- Convert tabs to spaces
vim.o.formatoptions = "rqnl1j" -- Improve comment editing
vim.o.ignorecase = true -- Ignore case during search
vim.o.incsearch = true -- Show search matches while typing
vim.opt.inccommand = "split" -- Preview substitutions live, as you type!
vim.o.infercase = true -- Infer case in built-in completion
vim.o.scrolloff = 15 -- Keep a minimum of 15 lines above/below cursor
vim.o.shiftwidth = 2 -- Use this number of spaces for indentation
vim.o.smartcase = true -- Respect case if search pattern has upper case
vim.o.smartindent = true -- Make indenting smart
vim.o.spelloptions = "camel" -- Treat camelCase word parts as separate words
vim.o.tabstop = 8 -- Show tab as this number of spaces
vim.o.virtualedit = "block" -- Allow going past end of line in blockwise mode

vim.o.iskeyword = "@,48-57,_,192-255,-" -- Treat dash as `word` textobject part

-- Pattern for a start of numbered list (used in `gw`). This reads as
-- "Start of list item is: at least one special character (digit, -, +, *)
-- possibly followed by punctuation (. or `)`) followed by at least one space".
vim.o.formatlistpat = [[^\s*[0-9\-\+\*]\+[\.\)]*\s\+]]

-- Reduce time taken to update swapfile
vim.opt.updatetime = 250
vim.opt.timeoutlen = 300

-- remove search highlights by clicking escape.
vim.keymap.set("n", "<Esc>", "<cmd>nohlsearch<CR>")
-- Remaps previous and next to automatically center search results.
vim.keymap.set("n", "n", "nzz", { noremap = true, silent = true })
vim.keymap.set("n", "N", "Nzz", { noremap = true, silent = true })
-- Centers the first search result.
vim.keymap.set(
    "c",
    "<CR>",
    function() return vim.fn.getcmdtype() == "/" and "<CR>zz" or "<CR>" end,
    { expr = true }
)

-- Remaps
vim.keymap.set("n", "<", "<gv", { noremap = true, silent = true })
vim.keymap.set("n", ">", ">gv", { noremap = true, silent = true })

-- Keybinds for moving visual selections using shift + hjkl/arrows
vim.keymap.set("v", "<S-k>", ":m '<-2<CR>gv=gv")
vim.keymap.set("v", "<S-j>", ":m '>+1<CR>gv=gv")
vim.keymap.set("v", "<S-up>", ":m '<-2<CR>gv=gv")
vim.keymap.set("v", "<S-down>", ":m '>+1<CR>gv=gv")