-- ── options.lua ───────────────────────────────────────────────────────────────
local o = vim.opt
local g = vim.g

-- Leader (set before plugins load)
g.mapleader      = " "
g.maplocalleader = "\\"

-- ── Appearance ────────────────────────────────────────────────────────────────
-- termguicolors emits RGB escape codes. Termius on mobile renders these
-- as purple/magenta backgrounds. Disable when MOBILE=1.
o.termguicolors  = (vim.env.MOBILE ~= "1")
o.number         = true
o.relativenumber = true
o.cursorline     = true
o.cursorcolumn   = false
o.signcolumn     = "yes:1"
o.scrolloff      = 8
o.sidescrolloff  = 8
o.wrap           = false
o.showmode       = false       -- lualine handles this
o.showcmd        = false
o.cmdheight      = 1
o.pumheight      = 12          -- max completion menu items
o.conceallevel   = 0

-- ── Editing ───────────────────────────────────────────────────────────────────
o.expandtab      = true
o.shiftwidth     = 4
o.tabstop        = 4
o.softtabstop    = 4
o.smartindent    = true
o.autoindent     = true
o.breakindent    = true

-- ── Search ────────────────────────────────────────────────────────────────────
o.ignorecase     = true
o.smartcase      = true
o.hlsearch       = true
o.incsearch      = true

-- ── Files ─────────────────────────────────────────────────────────────────────
o.undofile       = true
o.undodir        = vim.fn.stdpath("data") .. "/undo"
o.backup         = false
o.swapfile       = false
o.autoread       = true

-- ── Behavior ──────────────────────────────────────────────────────────────────
o.clipboard      = "unnamedplus"
o.updatetime     = 250
o.timeoutlen     = 300
o.splitright     = true
o.splitbelow     = true
o.completeopt    = "menu,menuone,noselect"
o.mouse          = "a"
o.virtualedit    = "block"

-- ── Folding (treesitter) ──────────────────────────────────────────────────────
o.foldmethod     = "expr"
o.foldexpr       = "nvim_treesitter#foldexpr()"
o.foldenable     = false       -- open by default, fold manually

-- ── Netrw (disabled — using oil.nvim) ────────────────────────────────────────
g.loaded_netrw       = 1
g.loaded_netrwPlugin = 1

-- ── Per-filetype tweaks ───────────────────────────────────────────────────────
vim.api.nvim_create_autocmd("FileType", {
    pattern = { "lua", "json", "yaml", "toml" },
    callback = function()
        vim.opt_local.shiftwidth = 2
        vim.opt_local.tabstop    = 2
    end,
})

-- Perl: use perltidy indenting convention
vim.api.nvim_create_autocmd("FileType", {
    pattern = { "perl" },
    callback = function()
        vim.opt_local.shiftwidth = 4
        vim.opt_local.tabstop    = 4
    end,
})

-- ── Highlight on yank ─────────────────────────────────────────────────────────
vim.api.nvim_create_autocmd("TextYankPost", {
    callback = function()
        vim.highlight.on_yank({ higroup = "IncSearch", timeout = 150 })
    end,
})